FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Zhu, MQ Legg, B Zhang, HZ Waychunas, G Banfield, J AF Zhu, Mengqiang Legg, Benjamin Zhang, Hengzhong Waychunas, Glenn Banfield, Jillian TI Time-resolved study of early-stage formation of iron oxyhydroxide nanoparticles SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 242nd National Meeting of the American-Chemical-Society (ACS) CY AUG 28-SEP 01, 2011 CL Denver, CO SP Amer Chem Soc (ACS) C1 [Zhu, Mengqiang; Waychunas, Glenn; Banfield, Jillian] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Zhu, Mengqiang; Legg, Benjamin; Zhang, Hengzhong; Waychunas, Glenn; Banfield, Jillian] Univ Calif Berkeley, Berkeley Nanogeosci Ctr, Berkeley, CA 94720 USA. EM mzhu@lbl.gov NR 0 TC 0 Z9 0 U1 1 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 28 PY 2011 VL 242 MA 31-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 880BE UT WOS:000299378303453 ER PT J AU Rice, JE Reinke, ML Ashbourn, JMA Ince-Cushman, AC Podpaly, YA Gu, MF Bitter, M Hill, K Rachlew, E AF Rice, J. E. Reinke, M. L. Ashbourn, J. M. A. Ince-Cushman, A. C. Podpaly, Y. A. Gu, M. F. Bitter, M. Hill, K. Rachlew, E. TI The Ar17+ Ly(alpha 2)/Ly(alpha 1) ratio in Alcator C-Mod tokamak plasmas SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID HYDROGEN-LIKE IONS; TI-XXII; PRECISION-MEASUREMENT; INTENSITY RATIOS; FINE-STRUCTURE; ATOMIC LEVELS; ONE-ELECTRON; LAMB SHIFT; TEMPERATURE; TRANSITIONS AB High-quality spectra of hydrogen-like Ar17+ have been obtained from Alcator C-Mod tokamak plasmas using a spatially imaging high-resolution x-ray spectrometer system in an extensive study of the underlying high-n satellite lines. The ratio of Ly(alpha 2) (1S(1/2)-2P(1/2)) to Ly(alpha 1) (1S(1/2)-2P(3/2)) was found to be similar to 0.52 regardless of plasma parameters, which is somewhat greater than the ratio of the statistical weights of the upper n = 2 levels, 0.5. This difference is mainly due to the effects of collisional excitation of fine-structure sub-levels. For the observations presented here, electron densities were in an extended range from 3 x 10(19) to 4 x 10(20) m(-3) with electron and ion temperatures between 1 and 4 keV. Experimental results are compared to calculations from COLRAD, a collisional-radiative modelling code, and good agreement is shown. C1 [Rice, J. E.; Reinke, M. L.; Ince-Cushman, A. C.; Podpaly, Y. A.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. [Ashbourn, J. M. A.] Univ Oxford, Math Inst, Oxford, England. [Gu, M. F.] Univ Calif Berkeley, SSL, Berkeley, CA 94720 USA. [Bitter, M.; Hill, K.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Rachlew, E.] KTH, Stockholm, Sweden. [Gu, M. F.] LLNL, Livermore, CA USA. RP Rice, JE (reprint author), MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM rice@psfc.mit.edu FU DoE [DE-FC02-99ER54512] FX The authors thank Jerry Hughes for providing electron density and temperature profiles, Jim Irby for electron density measurements, Amanda Hubbard for electron temperatures, Catherine Fiore for ion temperatures, Earl Marmar for Zeff measurements and the Alcator C-Mod operations and ICRF groups for expert running of the tokamak. Work at MIT was supported by DoE contract no DE-FC02-99ER54512. NR 27 TC 6 Z9 6 U1 0 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD AUG 28 PY 2011 VL 44 IS 16 AR 165702 DI 10.1088/0953-4075/44/16/165702 PG 6 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 820FK UT WOS:000294890800035 ER PT J AU Bastea, S AF Bastea, Sorin TI Thermodynamics and diffusion in size-symmetric and asymmetric dense electrolytes SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID MEAN SPHERICAL MODEL; CHARGED HARD SPHERES; INTEGRAL-EQUATION; PERTURBATION-THEORY; PHASE-EQUILIBRIA; LIQUID-METALS; FLUID; MATTER; APPROXIMATION; COEFFICIENT AB MD simulation results for model size-symmetric and asymmetric electrolytes at high densities and temperatures (well outside the liquid-gas coexistence region) are generated and analyzed focusing on thermodynamic and diffusion properties. An extension of the mean spherical approximation for electrolytes originally derived for charged hard sphere fluids is adapted to these systems by exploiting the separation of short range and Coulomb interaction contributions intrinsic to these theoretical models and is found to perform well for predicting equation of state quantities. The diffusion coefficients of these electrolytes can also be reasonably well predicted using entropy scaling ideas suitably adapted to charged systems and mixtures. Thus, this approach may provide an avenue for studying dense electrolytes or complex molecular systems containing charged species at high pressures and temperatures. (C) 2011 American Institute of Physics. [doi:10.1063/1.3629782] C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Bastea, S (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. EM sbastea@llnl.gov FU U. S. Department of Energy (DOE) by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the U. S. Department of Energy (DOE) by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 54 TC 4 Z9 4 U1 0 U2 3 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 28 PY 2011 VL 135 IS 8 AR 084515 DI 10.1063/1.3629782 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 814VG UT WOS:000294484700061 PM 21895207 ER PT J AU Han, Y Unal, B Jing, DP Thiel, PA Evans, JW AF Han, Yong Uenal, Baris Jing, Dapeng Thiel, P. A. Evans, J. W. TI Temperature-dependent growth shapes of Ni nanoclusters on NiAl(110) SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID THIN-FILM GROWTH; METAL; SURFACES; ISLANDS; NANOPARTICLES; NANOCRYSTALS; TRANSITION; CATALYSTS; RU(0001) AB Scanning tunneling microscopy studies reveal that two-dimensional nanoscale Ni islands formed by deposition of Ni on NiAl(110) between 200-400 K exhibit far-from-equilibrium growth shapes which change systematically with temperature. Island structure reflects the two types of adsorption sites available for Ni adatoms, and island shapes are controlled by the details of adatom diffusion along island edges accounting for numerous local configurations. The temperature dependence of the island shapes is captured and elucidated by kinetic Monte Carlo simulation of a realistic atomistic-level multisite lattice-gas model incorporating precise diffusion barriers. These barriers are obtained by utilizing density functional theory to probe energetics not just at adsorption sites but also at transition states for diffusion. This success demonstrates a capability for predictive atomistic-level modeling of nanocluster formation and shape selection in systems that have a high level of energetic and kinetic complexity. (C) 2011 American Institute of Physics. [doi:10.1063/1.3626581] C1 [Han, Yong] Iowa State Univ, Inst Phys Res & Technol, Ames, IA 50011 USA. [Han, Yong] Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China. [Uenal, Baris; Thiel, P. A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Uenal, Baris; Jing, Dapeng; Thiel, P. A.; Evans, J. W.] Iowa State Univ, Ames Lab USDOE, Ames, IA 50011 USA. [Jing, Dapeng; Thiel, P. A.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Evans, J. W.] Iowa State Univ, Dept Math, Ames, IA 50011 USA. [Evans, J. W.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Han, Y (reprint author), Iowa State Univ, Inst Phys Res & Technol, Ames, IA 50011 USA. EM octavian2009@gmail.com RI Han, Yong/F-5701-2012; Jing, Dapeng/M-3455-2014 OI Han, Yong/0000-0001-5404-0911; Jing, Dapeng/0000-0001-7600-7071 FU National Science Foundation (NSF) [CHE-1111500]; USDOE by ISU [DE-AC02-07CH11358] FX This work was supported by National Science Foundation (NSF) Grant No. CHE-1111500 with NERSC and Tera-Grid computational resources. Ames Laboratory is operated for the USDOE by ISU under Contract No. DE-AC02-07CH11358. Y.H. thanks the Beijing Computational Science Research Center for support during his visit when this paper was completed. NR 29 TC 6 Z9 6 U1 3 U2 13 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 28 PY 2011 VL 135 IS 8 AR 084706 DI 10.1063/1.3626581 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 814VG UT WOS:000294484700067 PM 21895213 ER PT J AU Klein, HCR Cheng, XL Smith, JC Shen, TY AF Klein, Heinrich C. R. Cheng, Xiaolin Smith, Jeremy C. Shen, Tongye TI Transfer matrix approach to the hydrogen-bonding in cellulose I-alpha fibrils describes the recalcitrance to thermal deconstruction SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID 2-DIMENSIONAL CORRELATION SPECTROSCOPY; NEUTRON FIBER DIFFRACTION; SYNCHROTRON X-RAY; MOLECULAR-DYNAMICS; CRYSTAL-STRUCTURE; PHASE TRANSITION; BETA; BIOFUELS; ETHANOL; CHAINS AB Cellulosic biomass has the potential to serve as a major renewable energy source. However, its strong recalcitrance to degradation hampers its large-scale use in biofuel production. To overcome this problem, a detailed understanding of the origins of the recalcitrance is required. One main biophysical phenomenon leading to the recalcitrance is the high structural ordering of natural cellulose fibrils, that arises largely from an extensive hydrogen-bond network between and within cellulose polymers. Here, we present a lattice-based model of cellulose I-alpha, one of the two major natural forms, at the resolution of explicit hydrogen bonds. The partition function and thermodynamic properties are evaluated using the transfer matrix method. Two competing hydrogen-bond patterns are found. This plasticity of the hydrogen-bond network leads to an entropic contribution stabilizing the crystalline fibril at intermediate temperatures. At these temperatures, an enhanced probability of bonding between the individual cellulose chains gives rise to increased resistance of the entire cellulose fibril to degradation, before the final disassembly temperature is reached. The results are consistent with the available crystallographic and IR spectroscopic experiments on the thermostability of cellulose I-alpha. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3626274] C1 [Cheng, Xiaolin; Smith, Jeremy C.; Shen, Tongye] Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37830 USA. [Cheng, Xiaolin; Smith, Jeremy C.; Shen, Tongye] Univ Tennessee, Dept Biochem Cellular & Mol Biol, Knoxville, TN 37996 USA. [Klein, Heinrich C. R.] Univ Heidelberg, Computat Mol Biophys Grp, Interdisciplinary Ctr Sci Comp, D-69120 Heidelberg, Germany. RP Klein, HCR (reprint author), Univ Heidelberg, Inst Theoret Phys, D-69120 Heidelberg, Germany. EM heinrich.klein@bioquant.uni-heidelberg.de; chengx@ornl.gov; smithjc@ornl.gov; tshen@utk.edu RI Shen, Tongye/A-9718-2008; smith, jeremy/B-7287-2012 OI Shen, Tongye/0000-0003-1495-3104; smith, jeremy/0000-0002-2978-3227 FU U.S. Department of Energy; Office of Biological and Environmental Research (OBER) [FWP ERKJE84] FX This work was funded by the U.S. Department of Energy, Scientific Discovery through Advanced Computing (SciDAC) program, and Office of Biological and Environmental Research (OBER) under FWP ERKJE84. NR 37 TC 3 Z9 3 U1 0 U2 14 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 28 PY 2011 VL 135 IS 8 AR 085106 DI 10.1063/1.3626274 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 814VG UT WOS:000294484700079 PM 21895224 ER PT J AU Morriss-Andrews, A Bellesia, G Shea, JE AF Morriss-Andrews, Alex Bellesia, Giovanni Shea, Joan-Emma TI Effects of surface interactions on peptide aggregate morphology SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; AMYLOID FIBRIL FORMATION; ALZHEIMERS-DISEASE; CONFORMATIONAL-CHANGES; NEURONAL DEATH; SOLID-SURFACES; BETA-PEPTIDE; ION CHANNELS; PROTEIN; MECHANISM AB The formation of peptide aggregates mediated by an attractive surface is investigated using replica exchange molecular dynamics simulations with a coarse-grained peptide representation. In the absence of a surface, the peptides exhibit a range of aggregate morphologies, including amorphous aggregates, beta-barrels and multi-layered fibrils, depending on the chiral stiffness of the chain (a measure of its beta-sheet propensity). In contrast, aggregate morphology in the presence of an attractive surface depends more on surface attraction than on peptide chain stiffness, with the surface favoring fibrillar structures. Peptide-peptide interactions couple to peptide-surface interactions cooperatively to affect the assembly process both qualitatively (in terms of aggregate morphology) and quantitatively (in terms of transition temperature and transition sharpness). The frequency of ordered fibrillar aggregates, the surface binding transition temperature, and the sharpness of the binding transition all increase with both surface attraction and chain stiffness. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624929] C1 [Morriss-Andrews, Alex; Shea, Joan-Emma] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Bellesia, Giovanni] Los Alamos Natl Lab, T6 & CNLS, Los Alamos, NM 87545 USA. [Bellesia, Giovanni; Shea, Joan-Emma] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA. RP Shea, JE (reprint author), Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. EM shea@chem.ucsb.edu FU National Science Foundation (NSF) [MCB-0642086, DMR-05-20415]; NSERC of Canada (PGS-D); David and Lucile Packard Foundation; UC FX Support from the National Science Foundation (NSF) (MCB-0642086 and DMR-05-20415), NSERC of Canada (PGS-D), the David and Lucile Packard Foundation, and the UC Thresher Computer Pilot project are acknowledged. We thank Andrew Jewett, whose code was used for computation of free energy distributions. NR 70 TC 16 Z9 16 U1 3 U2 25 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 28 PY 2011 VL 135 IS 8 AR 085102 DI 10.1063/1.3624929 PG 9 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 814VG UT WOS:000294484700075 PM 21895220 ER PT J AU Philpott, MR Prabhat Kawazoe, Y AF Philpott, Michael R. Prabhat Kawazoe, Yoshiyuki TI Magnetism and bonding in graphene nanodots with H modified interior, edge, and apex SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; AB-INITIO; THEORETICAL PREDICTION; OPEN-SHELL; BASIS-SET; NANORIBBONS; GRAPHITE AB Ab initio density functional theory calculations of hexagonal shaped zigzag edged graphene nanodot molecules, modified by the addition of atomic H to interior and perimeter sites, predict significant changes to the hexagonally sectored spin distribution and chemical bonding of the originals. The redistribution of Kohn-Sham levels at the top of the valence manifold from parent to derivative hint at large changes in the electronic structure. A centrally added H atom creates an occupied level in the middle of the 0.3 eV band gap of the parent molecule and is surrounded by an island of spins. The latter is isolated enough from the perimeter to provide a calibration of the edge spins of the modified parent. Mid-edge addition of a H atom "quenches" the spin on the edge by drawing a p(z)-electron into the C-H bond without reducing the spin on the other edges. Addition of H to an apex carbon atom results in a localized spin freed from the double bond that coexists with the parent spin on the same edge. Saturating the apex double bond by adding two H atoms, returns p-levels shifted in energy and index and parent-like spin patterns on all edges, intact except for small changes on the edges joined at the apex. Taken in unison these results demonstrate how atomic hydrogen and other groups could be used to engineer the magnetism of graphene nanodots. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624526] C1 [Philpott, Michael R.; Kawazoe, Yoshiyuki] Tohoku Univ, Inst Mat Res, Ctr Computat Mat Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan. [Philpott, Michael R.] Univ Calif Berkeley, Dept Chem, Kenneth S Pitzer Ctr Theoret Chem, Berkeley, CA 94720 USA. [Prabhat] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Philpott, MR (reprint author), Tohoku Univ, Inst Mat Res, Ctr Computat Mat Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan. EM philpott@imr.edu RI Kawazoe, Yoshiyuki/C-2998-2011 FU CCMS; JSPS; Director, Office of Advanced Scientific Computing Research, Office of Science, of the (U.S.) Department of Energy (DOE) [DE-AC02-05CH11231] FX All calculations were performed on the IMR Supercomputer. MRP thanks: the staff of the Hitachi 11000 supercomputer facility, IMR-Tohoku University for support; CCMS for hospitality and financial support; JSPS for long term fellowships during 2008-2009 and 2010-2011; W. J. Lester, Jr., for hospitality and support at the Kenneth Pitzer Center for Theoretical Chemistry, Department of Chemistry, University of California, Berkeley. This work was supported by the Director, Office of Advanced Scientific Computing Research, Office of Science, of the (U.S.) Department of Energy (DOE) under Contract No. DE-AC02-05CH11231. The authors thank the anonymous referee for useful comments. NR 52 TC 2 Z9 2 U1 0 U2 13 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 28 PY 2011 VL 135 IS 8 AR 084707 DI 10.1063/1.3624526 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 814VG UT WOS:000294484700068 PM 22003510 ER PT J AU Schmit, JD Whitelam, S Dill, K AF Schmit, Jeremy D. Whitelam, Stephen Dill, Ken TI Electrostatics and aggregation: How charge can turn a crystal into a gel SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID MEAN-FIELD THEORY; PHASE-DIAGRAM; POISSON-BOLTZMANN; PROTEIN CRYSTALS; BEHAVIOR; EQUATION; GELATION; FLUID; MODEL AB The crystallization of proteins or colloids is often hindered by the appearance of aggregates of low fractal dimension called gels. Here we study the effect of electrostatics upon crystal and gel formation using an analytic model of hard spheres bearing point charges and short range attractive interactions. We find that the chief electrostatic free energy cost of forming assemblies comes from the entropic loss of counterions that render assemblies charge-neutral. Because there exists more accessible volume for these counterions around an open gel than a dense crystal, there exists an electrostatic entropic driving force favoring the gel over the crystal. This driving force increases with increasing sphere charge, but can be counteracted by increasing counterion concentration. We show that these effects cannot be fully captured by pairwise-additive macroion interactions of the kind often used in simulations, and we show where on the phase diagram to go in order to suppress gel formation. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3626803] C1 [Schmit, Jeremy D.; Dill, Ken] Univ Calif San Francisco, Dept Pharmaceut Chem, San Francisco, CA 94158 USA. [Whitelam, Stephen] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. [Dill, Ken] SUNY Stony Brook, Laufer Ctr, Stony Brook, NY 11794 USA. [Dill, Ken] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA. [Dill, Ken] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. RP Schmit, JD (reprint author), Kansas State Univ, Dept Phys, 116 Cardwell Hall Manhattan, Manhattan, KS 66506 USA. EM schmit@phys.ksu.edu RI Schmit, Jeremy/I-8607-2012 OI Schmit, Jeremy/0000-0002-0104-5468 FU Office of Science, Office of Basic Energy Sciences, U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; National of Institutes of Health (NIH) [GM34993]; Defense Threat Reduction Agency [IACRO-B0845281]; Sandler Family Foundation FX This work was performed as part of a User project at the Molecular Foundry, Lawrence Berkeley National Laboratory, which is supported by the Office of Science, Office of Basic Energy Sciences, U.S. Department of Energy (DOE) (Contract No. DE-AC02-05CH11231). K.D. appreciates the support of National of Institutes of Health (NIH) (Grant No. GM34993), Defense Threat Reduction Agency (Grant No. IACRO-B0845281), and the support of the Sandler Family Foundation. The authors would like to thank Fyl Pincus and Martin Muschol for critical readings of the manuscript. NR 31 TC 10 Z9 10 U1 4 U2 27 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 28 PY 2011 VL 135 IS 8 AR 085103 DI 10.1063/1.3626803 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 814VG UT WOS:000294484700076 PM 21895221 ER PT J AU Crowell, SR Henderson, WM Kenneke, JF Fisher, JW AF Crowell, Susan Ritger Henderson, W. Matthew Kenneke, John F. Fisher, Jeffrey W. TI Development and application of a physiologically based pharmacokinetic model for triadimefon and its metabolite triadimenol in rats and humans SO TOXICOLOGY LETTERS LA English DT Article DE Triadimefon; Triadimenol; PBPK; Partition coefficient; Human equivalent dose ID TRIAZOLE FUNGICIDES; HEPATIC MICROSOMES; RISK-ASSESSMENT; MYCLOBUTANIL; EXPRESSION; TOXICITY; LIVER; MICE AB A physiologically based pharmacokinetic (PBPK) model was developed for the conazole fungicide triadimefon and its primary metabolite, triadimenol. Rat tissue:blood partition coefficients and metabolic constants were measured in vitro for both compounds. Pharmacokinetic data for parent and metabolite were collected from several tissues after intravenous administration of triadimefon to male Sprague-Dawley rats. The model adequately simulated peak blood and tissue concentrations but predicted more rapid clearance of both triadimefon and triadimenol from blood and tissues. Reverse metabolism of triadimenol to triadimefon in the liver was explored as a possible explanation of this slow clearance, with significant improvement in model prediction. The amended model was extrapolated to humans using in vitro metabolic constants measured in human hepatic microsomes. Human equivalent doses (HEDs) were calculated for a rat no observable adverse effect level (NOAEL) dose of 3.4 mg/kg/day using area under the concentration curve (AUC) in brain and blood for triadimefon and triadimenol as dosimetrics. All dosimetric-based HEDs were 25-30 fold above the human oral reference dose of 0.03 mg triadime-fon/kg/day, but did not account for intra-human variability or pharmacodynamic differences. Ultimately, derivations of this model will be able to better predict the exposure profile of these and other conazole fungicides in humans. Published by Elsevier Ireland Ltd. C1 [Crowell, Susan Ritger; Fisher, Jeffrey W.] Univ Georgia, Coll Publ Hlth, Athens, GA 30602 USA. [Henderson, W. Matthew; Kenneke, John F.] US EPA, Natl Exposure Res Lab, Off Res & Dev, Athens, GA 30605 USA. RP Crowell, SR (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. EM susan.crowell@pnl.gov NR 27 TC 19 Z9 24 U1 2 U2 18 PU ELSEVIER IRELAND LTD PI CLARE PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000, IRELAND SN 0378-4274 J9 TOXICOL LETT JI Toxicol. Lett. PD AUG 28 PY 2011 VL 205 IS 2 BP 154 EP 162 DI 10.1016/j.toxlet.2011.05.1036 PG 9 WC Toxicology SC Toxicology GA 809CO UT WOS:000294029600008 PM 21641977 ER PT J AU Soo, HS Agiral, A Frei, H AF Soo, Han Sen Agiral, Anil Frei, Heinz TI Core-shell construct featuring heterobimetallic chromophores for artificial photosynthesis SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 242nd National Meeting of the American-Chemical-Society (ACS) CY AUG 28-SEP 01, 2011 CL Denver, CO SP Amer Chem Soc, Dept Chem C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Helios Solar Energy Res Ctr, Berkeley, CA 94720 USA. EM hssoo@lbl.gov RI Soo Han Sen, Han Sen/B-7016-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 28 PY 2011 VL 242 MA 492-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 880BE UT WOS:000299378304203 ER PT J AU Kosar, T Balman, M Yildirim, E Kulasekaran, S Ross, B AF Kosar, Tevfik Balman, Mehmet Yildirim, Esma Kulasekaran, Sivakumar Ross, Brandon TI Stork data scheduler: mitigating the data bottleneck in e-Science SO PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES LA English DT Article; Proceedings Paper CT 9th e-Science All Hands Meeting (AHM) CY SEP 13-15, 2010 CL Cardiff, WALES DE data-intensive computing; input/output scheduling; throughput optimization; e-Science; Stork AB In this paper, we present the Stork data scheduler as a solution for mitigating the data bottleneck in e-Science and data-intensive scientific discovery. Stork focuses on planning, scheduling, monitoring and management of data placement tasks and application-level end-to-end optimization of networked inputs/outputs for petascale distributed e-Science applications. Unlike existing approaches, Stork treats data resources and the tasks related to data access and movement as first-class entities just like computational resources and compute tasks, and not simply the side-effect of computation. Stork provides unique features such as aggregation of data transfer jobs considering their source and destination addresses, and an application-level throughput estimation and optimization service. We describe how these two features are implemented in Stork and their effects on end-to-end data transfer performance. C1 [Kosar, Tevfik; Yildirim, Esma] SUNY Buffalo, Dept Comp Sci & Engn, Buffalo, NY 14260 USA. [Balman, Mehmet] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. [Kosar, Tevfik; Kulasekaran, Sivakumar; Ross, Brandon] Louisiana State Univ, Ctr Computat & Technol, Baton Rouge, LA 70803 USA. RP Kosar, T (reprint author), SUNY Buffalo, Dept Comp Sci & Engn, Buffalo, NY 14260 USA. EM tkosar@buffalo.edu RI Balman, Mehmet/J-6058-2012 FU National Science Foundation [CNS-0846052, CNS-0619843, OCI-0926701, EPS-0701491]; Board of Regents, State of Louisiana [NSF/LEQSF (2007-10)-CyberRII-01] FX This project is in part sponsored by the National Science Foundation under award numbers CNS-0846052 (CAREER), CNS-0619843 (PetaShare), OCI-0926701 (Stork) and EPS-0701491 (CyberTools), and by the Board of Regents, State of Louisiana, under contract number NSF/LEQSF (2007-10)-CyberRII-01. NR 40 TC 10 Z9 10 U1 0 U2 2 PU ROYAL SOC PI LONDON PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND SN 1364-503X EI 1471-2962 J9 PHILOS T R SOC A JI Philos. Trans. R. Soc. A-Math. Phys. Eng. Sci. PD AUG 28 PY 2011 VL 369 IS 1949 BP 3254 EP 3267 DI 10.1098/rsta.2011.0148 PG 14 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 793JU UT WOS:000292818400002 PM 21768138 ER PT J AU Ha, SC Lee, S Lee, J Kim, HT Ko, HJ Kim, KH Choi, IG AF Ha, Sung Chul Lee, Saeyoung Lee, Jonas Kim, Hee Taek Ko, Hyeok-Jin Kim, Kyoung Heon Choi, In-Geol TI Crystal structure of a key enzyme in the agarolytic pathway, alpha-neoagarobiose hydrolase from Saccharophagus degradans 2-40 SO BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS LA English DT Article DE alpha-Neoagarobiose hydrolase; Five-bladed beta-propeller fold; Agarolytic pathway; Glycoside hydrolase family 117 ID NEOAGAROOLIGOSACCHARIDE HYDROLASE; MARINE BACTERIUM; BETA-AGARASE; PURIFICATION; SYSTEM; HYDROLYSIS; RESIDUES; REVEALS AB In agarolytic microorganisms, alpha-neoagarobiose hydrolase (NABH) is an essential enzyme to metabolize agar because it converts alpha-neoagarobiose (0-3,6-anhydro-alpha-L-galactopyranosyl-(1,3)-D-galactose) into fermentable monosaccharides (D-galactose and 3,6-anhydro-L-galactose) in the agarolytic pathway. NABH can be divided into two biological classes by its cellular location. Here, we describe a structure and function of cytosolic NABH from Saccharophagus degradans 2-40 in a native protein and D-galactose complex determined at 2.0 and 1.55 A. respectively. The overall fold is organized in an N-terminal helical extension and a C-terminal five-bladed beta-propeller catalytic domain. The structure of the enzyme-ligand (D-galactose) complex predicts a +1 subsite in the substrate binding pocket. The structural features may provide insights for the evolution and classification of NABH in agarolytic pathways. (C) 2011 Elsevier Inc. All rights reserved. C1 [Lee, Saeyoung; Kim, Hee Taek; Ko, Hyeok-Jin; Kim, Kyoung Heon; Choi, In-Geol] Korea Univ, Sch Life Sci & Biotechnol, Seoul 136713, South Korea. [Ha, Sung Chul] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Lee, Jonas] CALTECH, Howard Hughes Med Inst, Pasadena, CA 91125 USA. [Lee, Jonas] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA. RP Choi, IG (reprint author), Korea Univ, Sch Life Sci & Biotechnol, Seoul 136713, South Korea. EM igchoi@korea.ac.kr RI Kim, Kyoung Heon/F-1059-2013; Choi, In-Geol/F-3152-2013 OI Kim, Kyoung Heon/0000-0003-4600-8668; FU National Research Foundation (NRF); Korea government (MEST) [2009-006860, 2011-0015629] FX We thank to Prof. Sung-Hou Kim of University of California, Berkeley, Prof. Kwang Yeon Hwang and Joseph Song of Korea University. This work is supported by the National Research Foundation (NRF) Grant funded by the Korea government (MEST) (Nos. 2009-0068606 and 2011-0015629). NR 31 TC 26 Z9 26 U1 0 U2 28 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0006-291X J9 BIOCHEM BIOPH RES CO JI Biochem. Biophys. Res. Commun. PD AUG 26 PY 2011 VL 412 IS 2 BP 238 EP 244 DI 10.1016/j.bbrc.2011.07.073 PG 7 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 816JM UT WOS:000294594500008 PM 21810409 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Vander Velde, C Vanlaer, P Adler, V Cimmino, A Costantini, S Grunewald, M Klein, B Lellouch, J Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L Gil, EC De Jeneret, JD Delaere, C Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Damiao, DD Pol, ME Souza, MHG Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A De Araujo, FTD Dias, FA Tomei, TRFP Gregores, EM Lagana, C Marinho, F Mercadante, PG Novaes, SF Padula, SS Darmenov, N Dimitrov, L Genchev, V Iaydjiev, R Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vankov, I Dimitrov, A Hadjiiska, R Karadzhinova, A Kozhuharov, V Litov, L Mateev, M Pavlov, B Petkov, R Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Meng, X Tao, J Wang, J Wang, J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhang, L Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Khalil, S Mahmoud, MA Hektor, A Kadastik, M Muntel, M Raidal, M Rebane, L Azzolini, V Eerola, P Fedi, G Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, R Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, R Charlot, C Dahms, T Dobrzynski, L Elgammal, S de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beauceron, S Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Lomidze, D Anagnostou, G Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S 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Goulianos, K. Lungu, G. Malik, S. Mesropian, C. Yan, M. Atramentov, O. Barker, A. Duggan, D. Gershtein, Y. Gray, R. Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Asaadi, J. Eusebi, R. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Nguyen, C. N. Osipenkov, I. Pakhotin, Y. Pivarski, J. Safonov, A. Sengupta, S. Tatarinov, A. Toback, D. Weinberger, M. Akchurin, N. Bardak, C. Damgov, J. Jeong, C. Kovitanggoon, K. Lee, S. W. Mane, P. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Issah, M. Johns, W. Kurt, P. Maguire, C. Melo, A. Sheldon, P. Snook, B. Tuo, S. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Cox, B. Francis, B. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Bellinger, J. N. Carlsmith, D. Dasu, S. Efron, J. Flood, K. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Klabbers, P. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Loveless, R. Mohapatra, A. Palmonari, F. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Measurement of the ratio of the 3-jet to 2-jet cross sections in pp collisions at root s=7 TeV SO PHYSICS LETTERS B LA English DT Article DE CMS; Physics; QCD; Multijets ratio ID DEEP-INELASTIC SCATTERING; JET; DISTRIBUTIONS; COLLIDER; EVENTS; HERA AB A measurement of the ratio of the inclusive 3-jet to 2-jet cross sections as a function of the total jet transverse momentum. HT, in the range 0.2 < H-T < 2.5 TeV is presented. The data have been collected at a proton-proton centre-of-mass energy of 7 TeV with the CMS detector at the LHC, and correspond to an integrated luminosity of 36 pb(-1). Comparisons are made between the data and the predictions of different QCD-based Monte Carlo models for multijet production. All models considered in this study are consistent with the data for H-T > 0.5 TeV. This measurement extends to an H-T range that has not been explored before. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved. C1 [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] INFN Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. 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Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Pitzl, D.; Raspereza, A.; Raval, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. [Katkov, I.; Zhukov, V.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schmanau, M.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Stiliaris, E.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdu, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Krajczar, K.; Veres, G. I.; Vesztergombi, G.] Eotvos Lorand Univ, Budapest, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Bombay, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Bombay, Maharashtra, India. [Maity, M.] Univ Visva Bharati, Santini Ketan, W Bengal, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Bakhshiansohi, H.; Fahim, A.; Jafari, A.] Sharif Univ Technol, Tehran, Iran. [Mohammadi, A.] Shiraz Univ, Shiraz, Iran. [Zeinali, M.] Isfahan Univ Technol, Esfahan, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] INFN Sez Bari, Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] INFN Sez Bologna, Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] INFN Sez Catania, Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] INFN Sez Firenze, Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Fabbri, F.; Benussi, L.; Bianco, S.; Colafranceschi, S.; Piccolo, D.] INFN Lab Nazl Frascati, Frascati, Italy. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Fabbricatore, P.; Musenich, R.] INFN Sez Genova, Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Gennai, S.; Ghezzi, A.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] INFN Sez Milano Bicocca, Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Cavallo, F. R.; Buontempo, S.; Montoya, C. A. Carrillo; De Cosa, A.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Paolucci, P.] INFN Sez Napoli, Naples, Italy. [De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Cavallo, N.; Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Gozzelino, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] INFN Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Lacaprara, S.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] INFN Sez Pavia, Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] INFN Sez Perugia, Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Univ Perugia, I-06100 Perugia, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] INFN Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] INFN Sez Torino, Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] INFN Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jeong, M. S.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Kim, H.; Choi, M.; Kang, S.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Kwon, E.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, Mi.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Lopez-Fernandez, R.; Villalba, R. Magana; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.; Yiu, C. H.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Parracho, P. C. Ferreira; Gallinaro, M.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Konoplyanikov, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, R.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.; Chen, J.] CALTECH, Pasadena, CA 91125 USA. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade 11001, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] CSIC Univ Cantabria, Inst Fis Cantabria IFCA, Santander, Spain. [Andreev, V.; Felcini, M.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, R.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Piedra Gomez, J.] Univ Florida, Gainesville, FL USA. [Bell, A. J.] Univ Geneva, Geneva, Switzerland. [Rolandi, G.] Ist Nazl Fis Nucl, Scuola Normale & Sez, Pisa, Italy. [Sphicas, P.] Univ Athens, Athens, Greece. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland. [Sibille, J.] Univ Kansas, Lawrence, KS 66045 USA. [Weber, M.; Bortignon, P.; Caminada, L.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, R.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Milian; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Dutta, S.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Chang, Y. H.; Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Cerci, S.; Cerci, D. Sunar] Adiyaman Univ, Adiyaman, Turkey. [Sogut, K.] Mersin Univ, Mersin, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Demir, D.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey. [Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey. [Sonmez, N.] Ege Univ, Izmir, Turkey. [Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine. [Hansen, M.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Basso, L.; Belyaev, A.] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England. [Bainbridge, R.; Ball, G.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Pioppi, M.] Univ Perugia, INFN Sez Perugia, Perugia, Italy. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.; Bose, S.] Boston Univ, Boston, MA 02215 USA. [Bhattacharya, S.; Avetisyan, A.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Liu, H.; Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Bellan, P.; Barge, D.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Das, S.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, OH USA. [Banerjee, S.; Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.; Harris, P.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Mesa, D.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Kunde, G. J.] Los Alamos Natl Lab, Los Alamos, NM USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Mermerkaya, H.] Erzincan Univ, Erzincan, Turkey. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; KennyIll, R. P.; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Khalil, S.; Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska Lincoln, Lincoln, NE USA. [Kumar, A.; Baur, U.; Godshalk, A.; Iashvili, I.; Kharchilava, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. 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Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, IN USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. 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Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini, Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ferguson, Thomas/O-3444-2014; Ragazzi, Stefano/D-2463-2009; Benussi, Luigi/O-9684-2014; Rolandi, Luigi (Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Markina, Anastasia/E-3390-2012; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Santoro, Alberto/E-7932-2014; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Venturi, Andrea/J-1877-2012; de Jesus Damiao, Dilson/G-6218-2012; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Stahl, Achim/E-8846-2011; Mercadante, Pedro/K-1918-2012; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Katkov, Igor/E-2627-2012; Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Tomei, Thiago/E-7091-2012; Focardi, Ettore/E-7376-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra /G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012; Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler, Manfred/H-3106-2012; Lokhtin, Igor/D-7004-2012; Kodolova, Olga/D-7158-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Belyaev, Andrey/E-1540-2012; Hektor, Andi/G-1804-2011; Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton, Tim/A-7951-2012; Yang, Fan/B-2755-2012; buotempo, salvatore/B-5210-2012; Krammer, Manfred/A-6508-2010; Tinoco Mendes, Andre David/D-4314-2011 OI Bargassa, Pedrame/0000-0001-8612-3332; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Bilki, Burak/0000-0001-9515-3306; Lloret Iglesias, Lara/0000-0002-0157-4765; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350; Ligabue, Franco/0000-0002-1549-7107; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; bianco, stefano/0000-0002-8300-4124; Gallinaro, Michele/0000-0003-1261-2277; Tabarelli de Fatis, Tommaso/0000-0001-6262-4685; Lenzi, Piergiulio/0000-0002-6927-8807; Raval, Amita/0000-0003-0164-4337; Torassa, Ezio/0000-0003-2321-0599; Sogut, Kenan/0000-0002-9682-2855; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255; Gonzi, Sandro/0000-0003-4754-645X; Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146; Faccioli, Pietro/0000-0003-1849-6692; Heath, Helen/0000-0001-6576-9740; My, Salvatore/0000-0002-9938-2680; Rovelli, Tiziano/0000-0002-9746-4842; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Della Ricca, Giuseppe/0000-0003-2831-6982; Russ, James/0000-0001-9856-9155; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; Matorras, Francisco/0000-0003-4295-5668; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Bean, Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619; Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario Livio/0000-0002-9918-1686; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ferguson, Thomas/0000-0001-5822-3731; Ragazzi, Stefano/0000-0001-8219-2074; Benussi, Luigi/0000-0002-2363-8889; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Stahl, Achim/0000-0002-8369-7506; Mundim, Luiz/0000-0001-9964-7805; Katkov, Igor/0000-0003-3064-0466; Tomei, Thiago/0000-0002-1809-5226; Focardi, Ettore/0000-0002-3763-5267; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; Dudko, Lev/0000-0002-4462-3192; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Krammer, Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre David/0000-0001-5854-7699 FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences; NICPB (Estonia); Academy of Finland; ME; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU (Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST; MAE (Russia); MSTD (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus): Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 37 TC 18 Z9 18 U1 1 U2 41 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 26 PY 2011 VL 702 IS 5 BP 336 EP 354 DI 10.1016/j.physletb.2011.07.067 PG 19 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 816JE UT WOS:000294593700005 ER PT J AU Kao, SC Ganguly, AR AF Kao, Shih-Chieh Ganguly, Auroop R. TI Intensity, duration, and frequency of precipitation extremes under 21st-century warming scenarios SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID CLIMATE-CHANGE; MODEL SIMULATIONS; EVENTS; TEMPERATURE; VARIABILITY; PROJECTIONS; STATISTICS; REANALYSES; INCREASES; ENSEMBLE AB Recent research on the projection of precipitation extremes has either focused on conceptual physical mechanisms that generate heavy precipitation or rigorous statistical methods that extrapolate tail behavior. However, informing both climate prediction and impact assessment requires concurrent physically and statistically oriented analysis. A combined examination of climate model simulations and observation-based reanalysis data sets suggests more intense and frequent precipitation extremes under 21st-century warming scenarios. Utilization of statistical extreme value theory and resampling-based uncertainty quantification combined with consideration of the Clausius-Clapeyron relationship reveals consistently intensifying trends for precipitation extremes at a global-average scale. However, regional and decadal analyses reveal specific discrepancies in the physical mechanisms governing precipitation extremes, as well as their statistical trends, especially in the tropics. The intensifying trend of precipitation extremes has quantifiable impacts on intensity-duration-frequency curves, which in turn have direct implications for hydraulic engineering design and water-resources management. The larger uncertainties at regional and decadal scales suggest the need for caution during regional-scale adaptation or preparedness decisions. Future research needs to explore the possibility of uncertainty reduction through higher resolution global climate models, statistical or dynamical downscaling, as well as improved understanding of precipitation extremes processes. C1 [Kao, Shih-Chieh; Ganguly, Auroop R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Kao, SC (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM auroop@alum.mit.edu RI Kao, Shih-Chieh/B-9428-2012 OI Kao, Shih-Chieh/0000-0002-3207-5328 FU Oak Ridge National Laboratory (ORNL; U.S. Department of Energy [DE-AC05-00OR22725] FX This research was funded by the Laboratory Directed Research and Development (LDRD) Program of the Oak Ridge National Laboratory (ORNL), which in turn is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. The United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The authors thank Dave Bader, Evan Kodra, Cheng Liu, Richard Medina, and Karsten Steinhaeuser for helpful comments and suggestions. NR 49 TC 24 Z9 25 U1 1 U2 27 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X EI 2169-8996 J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD AUG 26 PY 2011 VL 116 AR D16119 DI 10.1029/2010JD015529 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 813LR UT WOS:000294368600002 ER PT J AU Comellas, G Lemkau, LR Nieuwkoop, AJ Kloepper, KD Ladror, DT Ebisu, R Woods, WS Lipton, AS George, JM Rienstra, CM AF Comellas, Gemma Lemkau, Luisel R. Nieuwkoop, Andrew J. Kloepper, Kathryn D. Ladror, Daniel T. Ebisu, Reika Woods, Wendy S. Lipton, Andrew S. George, Julia M. Rienstra, Chad M. TI Structured Regions of alpha-Synuclein Fibrils Include the Early-Onset Parkinson's Disease Mutation Sites SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Article DE Lewy bodies; magic-angle spinning; solid-state NMR; conformational dynamics; structural perturbations ID SOLID-STATE NMR; ANGLE-SPINNING NMR; HUMAN PRION PROTEIN; AMYLOID FIBRILS; CROSS-POLARIZATION; CHEMICAL-SHIFT; CORE STRUCTURE; MUTANT FORMS; WILD-TYPE; SPECTROSCOPY AB alpha-Synuclein (AS) fibrils are the major component of Lewy bodies, the pathological hallmark of Parkinson's disease (PD). Here, we use results from an extensive investigation employing solid-state NMR to present a detailed structural characterization and conformational dynamics quantification of full-length AS fibrils. Our results show that the core extends with a repeated structural motif. This result disagrees with the previously proposed fold of AS fibrils obtained with limited solid-state NMR data. Additionally, our results demonstrate that the three single point mutations associated with early-onset PD-A30P, E46K and A53T-are located in structured regions. We find that E46K and A53T mutations, located in rigid p-strands of the wild-type fibrils, are associated with major and minor structural perturbations, respectively. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Lemkau, Luisel R.; Nieuwkoop, Andrew J.; Ladror, Daniel T.; Ebisu, Reika; Rienstra, Chad M.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA. [Comellas, Gemma; Rienstra, Chad M.] Univ Illinois, Ctr Biophys & Computat Biol, Urbana, IL 61801 USA. [Kloepper, Kathryn D.] Mercer Univ, Dept Chem, Macon, GA 31207 USA. [Woods, Wendy S.; George, Julia M.] Univ Illinois, Dept Mol & Integrat Physiol, Urbana, IL 61801 USA. [Lipton, Andrew S.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Rienstra, Chad M.] Univ Illinois, Dept Biochem, Urbana, IL 61801 USA. RP Rienstra, CM (reprint author), Univ Illinois, Dept Chem, 600 S Mathews Ave, Urbana, IL 61801 USA. EM rienstra@scs.illinois.edu RI George, Julia/B-2169-2008 OI George, Julia/0000-0001-6194-6914 FU National Institutes of Health (ARRA and NCRR) [R01-GM073770, S10 RR025037-01]; Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory; U.S. Department of Energy [DE-FG02-07ER46453, DE-FG02-07ER46471] FX All authors have approved the submission of this manuscript and have no conflicts of interest. This work was supported by the National Institutes of Health (R01-GM073770, R01-GM073770 ARRA supplement and NCRR Instruments grant S10 RR025037-01). Gemma Comellas was a Caja Madrid Foundation Graduate Fellow. A portion of the research was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. Electron micrographs were carried out in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois, which are partially supported by the U.S. Department of Energy under grants DE-FG02-07ER46453 and DE-FG02-07ER46471. The authors thank Dr. Robert Tycko for advice regarding fibril rehydration, Dr. Lou A. Miller for help and advice regarding EM, Dr. Benjamin J. Wylie for help and advice with the data fitting, Lindsay J. Sperling for discussion about the NMR experiments, and Dr. Anna E. Nesbitt for careful reading and discussions of the manuscript. NR 62 TC 70 Z9 70 U1 3 U2 23 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0022-2836 EI 1089-8638 J9 J MOL BIOL JI J. Mol. Biol. PD AUG 26 PY 2011 VL 411 IS 4 BP 881 EP 895 DI 10.1016/j.jmb.2011.06.026 PG 15 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 815HK UT WOS:000294516500011 PM 21718702 ER PT J AU Chapler, BC Myers, RC Mack, S Frenzel, A Pursley, BC Burch, KS Singley, EJ Dattelbaum, AM Samarth, N Awschalom, DD Basov, DN AF Chapler, B. C. Myers, R. C. Mack, S. Frenzel, A. Pursley, B. C. Burch, K. S. Singley, E. J. Dattelbaum, A. M. Samarth, N. Awschalom, D. D. Basov, D. N. TI Infrared probe of the insulator-to-metal transition in Ga1-xMnxAs and Ga1-xBexAs SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC SEMICONDUCTORS; FERROMAGNETISM; TEMPERATURE; SPECTRA; BAND AB We report infrared studies of the insulator-to-metal transition (IMT) in GaAs doped with either magnetic (Mn) or nonmagnetic acceptors (Be). We observe a resonance with a natural assignment to impurity states in the insulating regime of Ga1-xMnxAs, which persists across the IMT to the highest doping (16%). Beyond the IMT boundary, behavior combining insulating and metallic trends also persists to the highest Mn doping. Be-doped samples, however, display conventional metallicity just above the critical IMT concentration, with features indicative of transport within the host valence band. C1 [Chapler, B. C.; Frenzel, A.; Pursley, B. C.; Basov, D. N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Myers, R. C.] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA. [Mack, S.; Awschalom, D. D.] Univ Calif Santa Barbara, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USA. [Burch, K. S.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Burch, K. S.] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 1A7, Canada. [Singley, E. J.] Calif State Univ E Bay, Dept Phys, Hayward, CA 94542 USA. [Dattelbaum, A. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Samarth, N.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. RP Chapler, BC (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. EM bchapler@physics.ucsd.edu RI Mack, Shawn/F-4008-2011; Myers, Roberto/B-4431-2008; Samarth, Nitin/C-4475-2014; Frenzel, Alex/E-4133-2015; OI Mack, Shawn/0000-0001-6696-0483; Myers, Roberto/0000-0002-3695-2244; Samarth, Nitin/0000-0003-2599-346X; Burch, Kenneth/0000-0002-7541-0245 FU Office of Naval Research; National Science Foundation FX Work at UCSD is supported by the Office of Naval Research. Work at UCSB is supported by the Office of Naval Research and the National Science Foundation. NR 38 TC 23 Z9 23 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 26 PY 2011 VL 84 IS 8 AR 081203 DI 10.1103/PhysRevB.84.081203 PG 4 WC Physics, Condensed Matter SC Physics GA 812XB UT WOS:000294325400002 ER PT J AU Fasoli, M Vedda, A Nikl, M Jiang, C Uberuaga, BP Andersson, DA McClellan, KJ Stanek, CR AF Fasoli, M. Vedda, A. Nikl, M. Jiang, C. Uberuaga, B. P. Andersson, D. A. McClellan, K. J. Stanek, C. R. TI Band-gap engineering for removing shallow traps in rare-earth Lu3Al5O12 garnet scintillators using Ga3+ doping SO PHYSICAL REVIEW B LA English DT Article ID INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; INTRINSIC DEFECTS; SINGLE-CRYSTALS; BASIS-SET; LUMINESCENCE; YAG AB We employ a combination of first-principles calculations and optical characterization experiments to explain the mechanism by which Ga3+ doping prevents the trapping of free carriers due to shallow traps in RE3Al5O12 garnet scintillators (where RE represents a 3+ rare-earth cation). Specifically, we confirm that Ga3+ doping does not reduce the defect concentration (defect engineering), but rather leads to shifts in the valence and conduction bands such that the energy level of shallow defects is no longer in the forbidden gap where electrons can be trapped (band-gap engineering). C1 [Fasoli, M.; Vedda, A.] Univ Milano Bicocca, Dept Mat Sci, I-20125 Milan, Italy. [Nikl, M.] Inst Phys AS CR, Prague 16253, Czech Republic. [Jiang, C.; Uberuaga, B. P.; Andersson, D. A.; McClellan, K. J.; Stanek, C. R.] Los Alamos Natl Lab, MST Struct & Property Relat 8, Los Alamos, NM 87545 USA. RP Fasoli, M (reprint author), Univ Milano Bicocca, Dept Mat Sci, I-20125 Milan, Italy. EM stanek@lanl.gov RI Jiang, Chao/A-2546-2011; Jiang, Chao/D-1957-2017; OI Jiang, Chao/0000-0003-0610-6327; Fasoli, Mauro/0000-0001-5463-4875 FU Czech GACR [202/08/0893]; CARIPLO Foundation; US Department of Energy [DE-AC52-06NA25396] FX A. Yoshikawa and H. Ogino at Tohoku University are acknowledged for providing samples. Financial support of Czech GACR project 202/08/0893 and CARIPLO Foundation Project "Energy transfer and trapping phenomena in nanostructured scintillator materials" (2008-2011) is gratefully acknowledged. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under Contract No. DE-AC52-06NA25396. NR 41 TC 107 Z9 107 U1 7 U2 59 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 26 PY 2011 VL 84 IS 8 AR 081102 DI 10.1103/PhysRevB.84.081102 PG 4 WC Physics, Condensed Matter SC Physics GA 812XB UT WOS:000294325400001 ER PT J AU Hanken, BE Stanek, CR Gronbech-Jensen, N Asta, M AF Hanken, B. E. Stanek, C. R. Gronbech-Jensen, N. Asta, M. TI Computational study of the energetics of charge and cation mixing in U1-xCexO2 SO PHYSICAL REVIEW B LA English DT Article ID TOTAL-ENERGY CALCULATIONS; UO2-CEO2 SOLID-SOLUTIONS; AUGMENTED-WAVE METHOD; MAGNETIC-SUSCEPTIBILITIES; CERIUM CONCENTRATIONS; BASIS-SET; OXIDES; DIFFRACTION; STABILITY; METALS AB The formalism of electronic density-functional theory (DFT), with Hubbard-U corrections (DFT + U), is employed in a computational study of the energetics of fluorite-structured U1-xCexO2 mixtures. The computational approach makes use of a procedure which facilitates convergence of the calculations to multiple self-consistent DFT + U solutions for a given cation arrangement, corresponding to different charge states for the U and Ce ions in several prototypical cation arrangements. Results indicate a significant dependence of the structural and energetic properties on the nature of both charge and cation ordering. With the effective Hubbard-U parameters that reproduce well the measured oxidation-reduction energies for urania and ceria, we find that charge transfer between U4+ and Ce4+ ions, leading to the formation of U5+ and Ce3+, gives rise to an increase in the mixing energy in the range of 4-14 kJ/mol of the formula unit, depending on the nature of the cation ordering. The results suggest that although charge transfer between uranium and cerium ions is disfavored energetically, it is likely to be entropically stabilized at the high temperatures relevant to the processing and service of urania-based solid solutions. C1 [Hanken, B. E.; Asta, M.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. [Stanek, C. R.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Gronbech-Jensen, N.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA. [Asta, M.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RP Hanken, BE (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. FU US Department of Energy, Office of Nuclear Energy [DR-FG07-071D14893] FX We would like to thank Alexandra Navrotsky for useful input on this work. Furthermore, we thank Alexander Thompson, Fei Zhou, and David Andersson for helpful discussions. This work was supported by the US Department of Energy, Office of Nuclear Energy, through the Nuclear Energy Research Initiative for Consortia (NERI-C) program, Contract No. DR-FG07-071D14893, as well as the US Department of Energy, Office of Nuclear Energy, Nuclear Energy Advanced Modeling and Simulation (NEAMS) Program. NR 42 TC 21 Z9 21 U1 4 U2 24 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD AUG 26 PY 2011 VL 84 IS 8 AR 085131 DI 10.1103/PhysRevB.84.085131 PG 9 WC Physics, Condensed Matter SC Physics GA 812XB UT WOS:000294325400006 ER PT J AU Olovsson, W Holmstrom, E Marten, T Abrikosov, IA Niklasson, AMN AF Olovsson, Weine Holmstroem, Erik Marten, Tobias Abrikosov, Igor A. Niklasson, Anders M. N. TI Interface core-level shifts as a probe of embedded thin-film quality SO PHYSICAL REVIEW B LA English DT Article ID GREEN-FUNCTION TECHNIQUE; ELECTRONIC-STRUCTURE; SURFACE SEGREGATION; DISORDERED ALLOYS; BINDING-ENERGY; 1ST PRINCIPLE; SUPERLATTICES; APPROXIMATION; SPECTROSCOPY; SPECTRA AB We use first-principles calculations of layer-resolved core-level binding energy shifts (CLSs) within density functional theory as away to characterize the interface quality and thickness in embedded thin-film nanomaterials. A closer study of interfaces is motivated as properties specific to nanostructures can be related directly to the interface environment or indirectly as interference effects due to quantum confinement. From an analysis based on the Cu 2p(3/2) CLS for Cu embedded in Ni and Co fcc (100) and Fe bcc (100), with the interfaces represented by intermixing profiles controlled by a single parameter, we evaluate layer-resolved shifts as a probe of the thin-film quality. The core-level shifts in the corresponding disordered alloys, as well as local environment effects, are studied for comparison. We also discuss the possibility of detecting interface states by means of core-level shift measurements. C1 [Olovsson, Weine; Marten, Tobias; Abrikosov, Igor A.] Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden. [Holmstroem, Erik] Univ Austral Chile, Inst Ciencias Fis & Matemat, Valdivia, Chile. [Niklasson, Anders M. N.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Olovsson, W (reprint author), Linkoping Univ, Dept Phys Chem & Biol IFM, SE-58183 Linkoping, Sweden. RI Holmstrom, Erik/A-5308-2009; OI Holmstrom, Erik/0000-0002-1198-3861; Olovsson, Weine/0000-0002-2904-0108 NR 50 TC 2 Z9 2 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD AUG 26 PY 2011 VL 84 IS 8 AR 085431 DI 10.1103/PhysRevB.84.085431 PG 10 WC Physics, Condensed Matter SC Physics GA 812XB UT WOS:000294325400015 ER PT J AU Bhardwaj, V Trabelsi, K Singh, JB Choi, SK Olsen, SL Adachi, I Adamczyk, K Asner, DM Aulchenko, V Aushev, T Aziz, T Bakich, AM Barberio, E Belous, K Bhuyan, B Bischofberger, M Bondar, A Bracko, M Brodzicka, J Browder, TE Chen, A Chen, P Cheon, BG Cho, K Choi, Y Dalseno, J Dolezal, Z Eidelman, S Epifanov, D Gaur, V Gabyshev, N Golob, B Haba, J Hayasaka, K Hayashii, H Horii, Y Hoshi, Y Hou, WS Hsiung, YB Hyun, HJ Iijima, T Inami, K Ishikawa, A Iwabuchi, M Iwasaki, Y Iwashita, T Joshi, NJ Julius, T Kang, JH Kawasaki, T Kiesling, C Kim, HO Kim, JB Kim, JH Kim, KT Kim, MJ Kim, SK Kim, YJ Kinoshita, K Ko, BR Kobayashi, N Korpar, S Krizan, P Kumar, R Kumita, T Kuzmin, A Kwon, YJ Lange, JS Lee, MJ Lee, SH Li, Y Libby, J Lim, CL Liventsev, D Louvot, R Matvienko, D McOnie, S Miyabayashi, K Miyata, H Miyazaki, Y Mizuk, R Mohanty, GB Mussa, R Nakano, E Nakao, M Nakazawa, H Natkaniec, Z Ng, C Nishida, S Nitoh, O Nozaki, T Ohshima, T Okuno, S Onuki, Y Pakhlova, G Park, CW Park, HK Pestotnik, R Petric, M Piilonen, LE Rohrken, M Sahoo, H Sakai, K Sakai, Y Sanuki, T Schneider, O Schwanda, C Seon, O Shapkin, M Shebalin, V Shibata, TA Shiu, JG Shwartz, B Smerkol, P Sohn, YS Sokolov, A Solovieva, E Stanic, S Staric, M Sumiyoshi, T Tatishvili, G Teramoto, Y Uchida, M Uehara, S Uglov, T Unno, Y Uno, S Usov, Y Varner, G Vossen, A Wang, XL Watanabe, M Watanabe, Y Williams, KM Yabsley, BD Yamashita, Y Yuan, CZ Zhang, CC Zhang, ZP Zhilich, V Zhou, P Zhulanov, V Zupanc, A AF Bhardwaj, V. Trabelsi, K. Singh, J. B. Choi, S. -K. Olsen, S. L. Adachi, I. Adamczyk, K. Asner, D. M. Aulchenko, V. Aushev, T. Aziz, T. Bakich, A. M. Barberio, E. Belous, K. Bhuyan, B. Bischofberger, M. Bondar, A. Bracko, M. Brodzicka, J. Browder, T. E. Chen, A. Chen, P. Cheon, B. G. Cho, K. Choi, Y. Dalseno, J. Dolezal, Z. Eidelman, S. Epifanov, D. Gaur, V. Gabyshev, N. Golob, B. Haba, J. Hayasaka, K. Hayashii, H. Horii, Y. Hoshi, Y. Hou, W. -S. Hsiung, Y. B. Hyun, H. J. Iijima, T. Inami, K. Ishikawa, A. Iwabuchi, M. Iwasaki, Y. Iwashita, T. Joshi, N. J. Julius, T. Kang, J. H. Kawasaki, T. Kiesling, C. Kim, H. O. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, S. K. Kim, Y. J. Kinoshita, K. Ko, B. R. Kobayashi, N. Korpar, S. Krizan, P. Kumar, R. Kumita, T. Kuzmin, A. Kwon, Y. -J. Lange, J. S. Lee, M. J. Lee, S. -H. Li, Y. Libby, J. Lim, C. -L. Liventsev, D. Louvot, R. Matvienko, D. McOnie, S. Miyabayashi, K. Miyata, H. Miyazaki, Y. Mizuk, R. Mohanty, G. B. Mussa, R. Nakano, E. Nakao, M. Nakazawa, H. Natkaniec, Z. Ng, C. Nishida, S. Nitoh, O. Nozaki, T. Ohshima, T. Okuno, S. Onuki, Y. Pakhlova, G. Park, C. W. Park, H. K. Pestotnik, R. Petric, M. Piilonen, L. E. Roehrken, M. Sahoo, H. Sakai, K. Sakai, Y. Sanuki, T. Schneider, O. Schwanda, C. Seon, O. Shapkin, M. Shebalin, V. Shibata, T. -A. Shiu, J. -G. Shwartz, B. Smerkol, P. Sohn, Y. -S. Sokolov, A. Solovieva, E. Stanic, S. Staric, M. Sumiyoshi, T. Tatishvili, G. Teramoto, Y. Uchida, M. Uehara, S. Uglov, T. Unno, Y. Uno, S. Usov, Y. Varner, G. Vossen, A. Wang, X. L. Watanabe, M. Watanabe, Y. Williams, K. M. Yabsley, B. D. Yamashita, Y. Yuan, C. Z. Zhang, C. C. Zhang, Z. P. Zhilich, V. Zhou, P. Zhulanov, V. Zupanc, A. CA Belle Collaboration TI Observation of X(3872) -> J/psi gamma and Search for X(3872) -> psi 'gamma in B Decays SO PHYSICAL REVIEW LETTERS LA English DT Article AB We report a study of B -> (J/psi gamma)K and B -> (psi'gamma)K decay modes using 772 X 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We observe X(3872) -> J/psi gamma and report the first evidence for chi(c2) -> J/psi gamma in B -> (X-c (c) over bar gamma)K decays, while in a search for X(3872) -> psi'gamma no significant signal is found. We measure the branching fractions, B(B-+/- -> X(3872)K-+/-)B(X(3872) -> J/psi gamma) = (1.78(-0.44)(+0.48) +/- 0.12) X 10(-6), B(B-+/- -> chi K-c2(+/-)) = (1.11(-0.34)(+0.36) +/- 0.09) X 10(-5), B(B+ -> X(3872)K+)B(X(3872) -> psi'gamma) < 3.45 X 10(-6) (upper limit at 90% C. L.), and also provide upper limits for other searches. C1 [Bhardwaj, V.; Singh, J. B.; Kumar, R.] Panjab Univ, Chandigarh 160014, India. [Aulchenko, V.; Bondar, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Kuzmin, A.; Matvienko, D.; Shebalin, V.; Shwartz, B.; Usov, Y.; Zhilich, V.; Zhulanov, V.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia. [Dolezal, Z.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic. [Kinoshita, K.] Univ Cincinnati, Cincinnati, OH 45221 USA. [Lange, J. S.] Univ Giessen, Giessen, Germany. [Choi, S. -K.] Gyeongsang Natl Univ, Chinju, South Korea. [Cheon, B. G.; Unno, Y.] Hanyang Univ, Seoul 133791, South Korea. [Olsen, S. L.; Browder, T. E.; Sahoo, H.; Varner, G.] Univ Hawaii, Honolulu, HI 96822 USA. [Trabelsi, K.; Adachi, I.; Haba, J.; Iwasaki, Y.; Nakao, M.; Nishida, S.; Nozaki, T.; Sakai, K.; Sakai, Y.; Uehara, S.; Uno, S.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan. [Bhuyan, B.] Indian Inst Technol Guwahati, Gauhati, India. [Libby, J.] Indian Inst Technol, Madras 600036, Tamil Nadu, India. [Vossen, A.] Indiana Univ, Bloomington, IN 47408 USA. [Wang, X. L.; Yuan, C. Z.; Zhang, C. C.] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China. [Schwanda, C.] Inst High Energy Phys, Vienna, Austria. [Belous, K.; Shapkin, M.; Sokolov, A.] Inst High Energy Phys, Protvino, Russia. [Mussa, R.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Aushev, T.; Liventsev, D.; Mizuk, R.; Pakhlova, G.; Solovieva, E.; Uglov, T.] Inst Theoret & Expt Phys, Moscow, Russia. [Bracko, M.; Golob, B.; Korpar, S.; Krizan, P.; Pestotnik, R.; Petric, M.; Smerkol, P.; Staric, M.] J Stefan Inst, Ljubljana, Slovenia. [Okuno, S.; Watanabe, Y.] Kanagawa Univ, Yokohama, Kanagawa, Japan. [Roehrken, M.; Zupanc, A.] Karlsruher Inst Technol, Inst Expt Kernphys, Karlsruhe, Germany. [Cho, K.; Kim, J. H.; Kim, Y. J.] Korea Inst Sci & Technol Informat, Taejon, South Korea. [Kim, J. B.; Kim, K. T.; Ko, B. R.; Lee, S. -H.] Korea Univ, Seoul, South Korea. [Hyun, H. J.; Kim, H. O.; Kim, M. J.; Park, H. K.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Louvot, R.; Schneider, O.] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland. [Golob, B.; Krizan, P.] Univ Ljubljana, Fac Math & Phys, Ljubljana, Slovenia. [Bracko, M.; Korpar, S.] Univ Maribor, SLO-2000 Maribor, Slovenia. [Dalseno, J.; Kiesling, C.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Hayasaka, K.; Iijima, T.; Inami, K.; Miyazaki, Y.; Ohshima, T.; Seon, O.] Nagoya Univ, Nagoya, Aichi 4648601, Japan. [Barberio, E.; Julius, T.] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia. [Bischofberger, M.; Hayashii, H.; Iwashita, T.; Miyabayashi, K.] Nara Womens Univ, Nara 630, Japan. [Chen, A.; Nakazawa, H.] Natl Cent Univ, Chungli, Taiwan. [Chen, P.; Hou, W. -S.; Hsiung, Y. B.; Shiu, J. -G.] Natl Taiwan Univ, Dept Phys, Taipei, Taiwan. [Adamczyk, K.; Brodzicka, J.; Natkaniec, Z.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland. [Yamashita, Y.] Nippon Dent Univ, Niigata, Japan. [Kawasaki, T.; Miyata, H.; Watanabe, M.] Niigata Univ, Niigata, Japan. [Stanic, S.] Univ Nova Gorica, Nova Gorica, Slovenia. [Aulchenko, V.; Bondar, A.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Kuzmin, A.; Matvienko, D.; Shebalin, V.; Shwartz, B.; Usov, Y.; Zhilich, V.; Zhulanov, V.] Novosibirsk State Univ, Novosibirsk 630090, Russia. [Nakano, E.; Teramoto, Y.] Osaka City Univ, Osaka 558, Japan. [Asner, D. M.; Tatishvili, G.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Kobayashi, N.; Shibata, T. -A.; Uchida, M.] Nucl Phys Res Ctr, Osaka, Japan. [Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Olsen, S. L.; Kim, S. K.; Lee, M. J.] Seoul Natl Univ, Seoul, South Korea. [Choi, Y.; Park, C. W.] Sungkyunkwan Univ, Suwon, South Korea. [Bakich, A. M.; McOnie, S.; Yabsley, B. D.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Aziz, T.; Gaur, V.; Joshi, N. J.; Mohanty, G. B.] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India. [Dalseno, J.] Tech Univ Munich, D-8046 Garching, Germany. [Hoshi, Y.] Tohoku Gakuin Univ, Tagajo, Miyagi, Japan. [Horii, Y.; Ishikawa, A.; Onuki, Y.; Sanuki, T.] Tohoku Univ, Sendai, Miyagi 980, Japan. [Ng, C.] Univ Tokyo, Dept Phys, Tokyo 113, Japan. [Kobayashi, N.; Shibata, T. -A.; Uchida, M.] Tokyo Inst Technol, Tokyo 152, Japan. [Kumita, T.; Sumiyoshi, T.] Tokyo Metropolitan Univ, Tokyo 158, Japan. [Nitoh, O.] Tokyo Univ Agr & Technol, Tokyo, Japan. [Li, Y.; Piilonen, L. E.; Williams, K. M.] Virginia Polytech Inst & State Univ, CNP, Blacksburg, VA 24061 USA. [Zhou, P.] Wayne State Univ, Detroit, MI 48202 USA. [Iwabuchi, M.; Kang, J. H.; Kwon, Y. -J.; Lim, C. -L.; Sohn, Y. -S.] Yonsei Univ, Seoul 120749, South Korea. RP Bhardwaj, V (reprint author), Panjab Univ, Chandigarh 160014, India. RI Nitoh, Osamu/C-3522-2013; Kim, Sun Kee/G-2042-2015; Uglov, Timofey/B-2406-2014; Mizuk, Roman/B-3751-2014; Pakhlova, Galina/C-5378-2014; Solovieva, Elena/B-2449-2014; OI Kim, Sun Kee/0000-0002-0013-0775; Uglov, Timofey/0000-0002-4944-1830; Pakhlova, Galina/0000-0001-7518-3022; Solovieva, Elena/0000-0002-5735-4059; Bhardwaj, Vishal/0000-0001-8857-8621 FU MEXT; JSPS; Nagoya's TLPRC (Japan); ARC; DIISR (Australia); NSFC (China); MSMT (Czechia); DST (India); MEST; NRF; NSDC of KISTI; WCU (Korea); MNiSW (Poland); MES; RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC; MOE (Taiwan); DOE (U.S.) FX We thank the KEKB group for excellent operation of the accelerator, the KEK cryogenics group for efficient solenoid operations, and the KEK computer group and the NII for valuable computing and SINET3 network support. We acknowledge support from MEXT, JSPS, and Nagoya's TLPRC (Japan); ARC and DIISR (Australia); NSFC (China); MSMT (Czechia); DST (India); MEST, NRF, NSDC of KISTI, and WCU (Korea); MNiSW (Poland); MES and RFAAE (Russia); ARRS (Slovenia); SNSF (Switzerland); NSC and MOE (Taiwan); and DOE (U.S.). NR 29 TC 64 Z9 65 U1 0 U2 12 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 26 PY 2011 VL 107 IS 9 AR 091803 DI 10.1103/PhysRevLett.107.091803 PG 6 WC Physics, Multidisciplinary SC Physics GA 812XX UT WOS:000294328300003 PM 21929226 ER PT J AU Feist, J Nagele, S Ticknor, C Schneider, BI Collins, LA Burgdorfer, J AF Feist, J. Nagele, S. Ticknor, C. Schneider, B. I. Collins, L. A. Burgdoerfer, J. TI Attosecond Two-Photon Interferometry for Doubly Excited States of Helium SO PHYSICAL REVIEW LETTERS LA English DT Article ID EMISSION; DYNAMICS; PULSES; ATOMS AB We show that the correlation dynamics in coherently excited doubly excited resonances of helium can be followed in real time by two-photon interferometry. This approach promises to map the evolution of the two-electron wave packet onto experimentally easily accessible noncoincident single-electron spectra. We analyze the interferometric signal in terms of a semianalytical model which is validated by a numerical solution of the time-dependent two-electron Schrodinger equation in its full dimensionality. C1 [Feist, J.] Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA. [Nagele, S.; Burgdoerfer, J.] Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria. [Ticknor, C.; Collins, L. A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Schneider, B. I.] Natl Sci Fdn, Off Cyberinfrastruct, Arlington, VA 22230 USA. RP Feist, J (reprint author), Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA. EM jfeist@cfa.harvard.edu; stefan.nagele@tuwien.ac.at RI Nagele, Stefan/E-6938-2011; Feist, Johannes/J-7394-2012; Ticknor, Christopher/B-8651-2014; OI Nagele, Stefan/0000-0003-1213-0294; Feist, Johannes/0000-0002-7972-0646; Ticknor, Christopher/0000-0001-9972-4524 FU FWF-Austria [SFB016, P21141-N16]; NSF; NNSA of the U.S. DOE [DE-AC52-06NA25396]; TACC [TG-PHY090031] FX The authors thank Renate Pazourek for valuable discussions. We acknowledge support by the FWF-Austria, Grants No. SFB016 and No. P21141-N16 (S. N. and J. B.) and by the NSF through a grant to ITAMP (J. F.). C. T. and L. A. C. acknowledge support from LANL, which is operated by LANS, LLC for the NNSA of the U.S. DOE under Contract No. DE-AC52-06NA25396. The computational results have been achieved by using the Vienna Scientific Cluster, Institutional Computing resources at Los Alamos National Laboratory, and NSF TeraGrid resources provided by NICS and TACC under Grant No. TG-PHY090031. NR 24 TC 17 Z9 17 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 26 PY 2011 VL 107 IS 9 AR 093005 DI 10.1103/PhysRevLett.107.093005 PG 5 WC Physics, Multidisciplinary SC Physics GA 812XX UT WOS:000294328300005 PM 21929238 ER PT J AU Kato, Y Batista, CD Vekhter, I AF Kato, Yasuyuki Batista, C. D. Vekhter, I. TI Antiferromagnetic Order in Pauli-Limited Unconventional Superconductors SO PHYSICAL REVIEW LETTERS LA English DT Article AB We develop a theory of the coexistence of superconductivity (SC) and antiferromagnetism (AFM) in CeCoIn(5). We show that in Pauli-limited nodal superconductors the nesting of the quasiparticle pockets induced by Zeeman pair breaking leads to incommensurate AFM with the magnetic moment normal to the field. We compute the phase diagram and find a first order transition to the normal state at low temperatures, the absence of normal state AFM, and the coexistence of SC and AFM at high fields, in agreement with experiments. We also predict the existence of a new double-Q magnetic phase. C1 [Kato, Yasuyuki; Batista, C. D.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Vekhter, I.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. RP Kato, Y (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Vekhter, Ilya/M-1780-2013; Batista, Cristian/J-8008-2016 FU U.S. DOE [DE-AC52-06NA25396]; DOE [DE-FG02-08ER46492] FX We are grateful to K. Aoyama, S. Brown, J. Flouquet, K. Machida, Y. Matsuda, R. Movshovich, T. Sakakibara, and Y. Yanase for discussions. Work at LANL was performed under the auspices of the U.S. DOE contract No. DE-AC52-06NA25396 through the LDRD program. I. V. acknowledges support from DOE Grant DE-FG02-08ER46492 and the hospitality of ISSP (University of Tokyo) and Institut Neel/Universite Joseph Fourier (Grenoble), where part of this work was done. NR 27 TC 17 Z9 17 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 26 PY 2011 VL 107 IS 9 AR 096401 DI 10.1103/PhysRevLett.107.096401 PG 4 WC Physics, Multidisciplinary SC Physics GA 812XX UT WOS:000294328300006 PM 21929256 ER PT J AU Smith, DR Burki, F Yamada, T Grimwood, J Grigoriev, IV Van Etten, JL Keeling, PJ AF Smith, David Roy Burki, Fabien Yamada, Takashi Grimwood, Jane Grigoriev, Igor V. Van Etten, James L. Keeling, Patrick J. TI The GC-Rich Mitochondrial and Plastid Genomes of the Green Alga Coccomyxa Give Insight into the Evolution of Organelle DNA Nucleotide Landscape SO PLOS ONE LA English DT Article ID BIASED GENE CONVERSION; CHLOROPLAST GENOME; PEDINOMONAS-MINOR; COMPLETE SEQUENCE; CHLOROPHYTA; ULVOPHYCEAE; TREBOUXIOPHYCEAE; HELICOSPORIDIUM; RECOMBINATION; CHROMOSOMES AB Most of the available mitochondrial and plastid genome sequences are biased towards adenine and thymine (AT) over guanine and cytosine (GC). Examples of GC-rich organelle DNAs are limited to a small but eclectic list of species, including certain green algae. Here, to gain insight in the evolution of organelle nucleotide landscape, we present the GC-rich mitochondrial and plastid DNAs from the trebouxiophyte green alga Coccomyxa sp. C-169. We compare these sequences with other GC-rich organelle DNAs and argue that the forces biasing them towards G and C are nonadaptive and linked to the metabolic and/or life history features of this species. The Coccomyxa organelle genomes are also used for phylogenetic analyses, which highlight the complexities in trying to resolve the interrelationships among the core chlorophyte green algae, but ultimately favour a sister relationship between the Ulvophyceae and Chlorophyceae, with the Trebouxiophyceae branching at the base of the chlorophyte crown. C1 [Smith, David Roy; Burki, Fabien; Keeling, Patrick J.] Univ British Columbia, Dept Bot, Canadian Inst Adv Res, Vancouver, BC, Canada. [Yamada, Takashi] Hiroshima Univ, Grad Sch Adv Sci Matter, Dept Mol Biotechnol, Higashihiroshima 724, Japan. [Grimwood, Jane] HudsonAlpha Genome Sequencing Ctr, HudsonAlpha JGI, Huntsville, AL USA. [Grigoriev, Igor V.] Joint Genome Inst, Dept Energy, Walnut Creek, CA USA. [Van Etten, James L.] Univ Nebraska, Dept Plant Pathol, Lincoln, NE 68583 USA. [Van Etten, James L.] Univ Nebraska, Nebraska Ctr Virol, Lincoln, NE 68583 USA. RP Smith, DR (reprint author), Univ British Columbia, Dept Bot, Canadian Inst Adv Res, Vancouver, BC, Canada. EM smithdr@dal.ca RI Burki, Fabien/F-4818-2010; Smith, David/L-7910-2015 OI Smith, David/0000-0001-9560-5210 FU Natural Sciences and Engineering Research Council (NSERC) of Canada; Swiss National Science Foundation; Tula Foundation; National Center for Research Resources [P20-RR15635]; NSERC [227301]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX DRS is supported by a postdoctoral fellowship from the Natural Sciences and Engineering Research Council (NSERC) of Canada. FB is supported by a prospective researcher postdoctoral fellowship from the Swiss National Science Foundation, and by a grant to the Centre for Microbial Diversity and Evolution from the Tula Foundation. JLVE was partially supported by grant P20-RR15635 from the COBRE program of the National Center for Research Resources (no additional external funding received for this study). PJK is funded by a grant from NSERC (227301). PJK is a Fellow of the Canadian Institute for Advanced Research and a Senior Scholar of the Michael Smith Foundation for Health Research. The work conducted by the DOE JGI is supported by the Office of Science of the U.S. Department of Energy under Contract Number DE-AC02-05CH11231. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 52 TC 24 Z9 26 U1 4 U2 26 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 26 PY 2011 VL 6 IS 8 AR e23624 DI 10.1371/journal.pone.0023624 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 812MY UT WOS:000294298800017 PM 21887287 ER PT J AU Shankaraiah, N Murthy, KPN Lookman, T Shenoy, SR AF Shankaraiah, N. Murthy, K. P. N. Lookman, T. Shenoy, S. R. TI Monte Carlo simulations of strain pseudospins: Athermal martensites, incubation times, and entropy barriers SO PHYSICAL REVIEW B LA English DT Article ID PHASE-TRANSITIONS; ENERGY BARRIERS; TWIN BOUNDARIES; TRANSFORMATION; KINETICS; DYNAMICS; MODEL; FIELD; COMPATIBILITY; DIFFRACTION AB We study martensitic transition kinetics through temperature-quench Monte Carlo simulations for a square/rectangle ferroelastic transition, described by a Hamiltonian of three-state pseudospins S, without extrinsic disorder. Here S = 0 for high-temperature austenite, and S = +/- 1 for the two martensite variants. The temperature-dependent pseudospin Hamiltonian comes from the total scaled free energy functional, evaluated at the three minima of Landau polynomials in order-parameter strains. It includes power-law anisotropic interactions from the St. Venant compatibility constraint, which orient the elastic domain walls in a symmetry-breaking diagonal direction. We find that temperature-time-transformation (TTT) plots for domain-wall phase evolution have phase crossover temperatures, which are understood through an effective-droplet energy parametrization. For temperature cycling through the phases, there are hysteretic peaks in physical quantities. For temperature quenches, a "vapor" of martensitic droplets converts at a time t(m)(T) to a vibrating "liquid" of bidiagonal domain walls, which then orient at a time t(C)(T) to a static "crystal" of single-diagonal martensitic twins, which can have bound residual austenite. Focusing on the conversion time t(m), we find a material-parameter phase diagram, which has regions of nonactivated "athermal" and activated "isothermal" martensites. In an athermal, nonactivated regime, there are explosive austenite-martensite conversions at temperatures below a residual-austenite spinodal in the TTT diagram, while above it, there are conversion tails, as in experiment. We find t(m) (T) has a quasi-universal Vogel-Fulcher divergence at transition, with a log-normal conversion-rate distribution. The incubation times t(m), t(C) are attributed to entropy barriers, with signatures of flat energies, during pathway searches for finite-scale transition textures, which are explicitly identified through textural and internal-stress snapshots. In a glasslike energy landscape picture, these entropic pathways to many locked-twin states dominate those to a single-variant martensite state, of almost the same energy density. Other transitions in 2D and 3D can be similarly studied. More generally, the models could be used to explore conceptual issues of how systems equilibrate after a deep quench. C1 [Shankaraiah, N.; Murthy, K. P. N.; Shenoy, S. R.] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India. [Lookman, T.] Los Alamos Natl Lab, Div Theory, Los Alamos, NM 87545 USA. RP Shankaraiah, N (reprint author), Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India. OI Lookman, Turab/0000-0001-8122-5671 FU University Grants Commission FX We thank the Centre for Advanced Study, University of Hyderabad, supported by the University Grants Commission, for a Ph.D. fellowship for N.S. We are grateful to Uwe Klemradt for useful discussions. NR 72 TC 8 Z9 8 U1 1 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 26 PY 2011 VL 84 IS 6 AR 064119 DI 10.1103/PhysRevB.84.064119 PG 19 WC Physics, Condensed Matter SC Physics GA 812WX UT WOS:000294325000003 ER PT J AU Harnik, R Kribs, GD Martin, A AF Harnik, Roni Kribs, Graham D. Martin, Adam TI Quirks at the Tevatron and beyond SO PHYSICAL REVIEW D LA English DT Article ID QUARKONIUM PRODUCTION; QUARKS AB We consider the physics and collider phenomenology of quirks that transform nontrivially under QCD color, SU(2)(W) as well as an SU(N)(ic) infracolor group. Our main motivation is to show that the recent Wjj excess observed by CDF naturally arises in quirky models. The basic pattern is that several different quirky states can be produced, some of which beta decay during or after spin-down, leaving the lightest electrically-neutral quirks to hadronize into a meson that subsequently decays into gluon jets. We analyze LEP II, Tevatron, UA2, and electroweak precision constraints, identifying the simplest viable models: scalar quirks ("squirks") transforming as color triplets, SU(2)(W) triplets and singlets, all with vanishing hypercharge. We calculate production cross sections, weak decay, spin-down, meson decay rates, and estimate efficiencies. The novel features of our quirky model includes: quirkonium decay proceeds into a pair of gluon jets, without a b-jet component; there is essentially no associated Zjj or gamma jj signal; and there are potentially new (parameter-dependent) contributions to dijet production, multi-W production plus jets, W gamma, gamma gamma resonance signals, and monojet signals. There may be either underlying event from low energy QCD deposition resulting from quirky spin-down and/or qualitatively modified event kinematics from infraglueball emission. C1 [Harnik, Roni; Kribs, Graham D.; Martin, Adam] Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. [Kribs, Graham D.] Univ Oregon, Dept Phys, Eugene, OR 97403 USA. RP Harnik, R (reprint author), Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. FU Fermilab; US Department of Energy [DE-FG02-96ER40969, DE-AC02-07CH11359] FX We thank Z. Chacko, R. Fok, and M. Strassler for useful conversations. G. D. K. was supported by a Ben Lee Fellowship from Fermilab and in part by the US Department of Energy under Contract No. DE-FG02-96ER40969. R. H., G. D. K., A. M. are supported by Fermilab operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the US Department of Energy. NR 80 TC 15 Z9 15 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 26 PY 2011 VL 84 IS 3 AR 035029 DI 10.1103/PhysRevD.84.035029 PG 13 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 812XO UT WOS:000294327000003 ER PT J AU Ansong, C Tolic, N Purvine, SO Porwollik, S Jones, M Yoon, H Payne, SH Martin, JL Burnet, MC Monroe, ME Venepally, P Smith, RD Peterson, SN Heffron, F McClelland, M Adkins, JN AF Ansong, Charles Tolic, Nikola Purvine, Samuel O. Porwollik, Steffen Jones, Marcus Yoon, Hyunjin Payne, Samuel H. Martin, Jessica L. Burnet, Meagan C. Monroe, Matthew E. Venepally, Pratap Smith, Richard D. Peterson, Scott N. Heffron, Fred McClelland, Michael Adkins, Joshua N. TI Experimental annotation of post-translational features and translated coding regions in the pathogen Salmonella Typhimurium SO BMC GENOMICS LA English DT Article DE gene annotation; proteomics; post-translational modifications ID CARBAMYL-PHOSPHATE SYNTHETASE; TERMINAL METHIONINE EXCISION; MASS-SPECTROMETRY DATA; UNIQUE SEQUENCE TAGS; GENOME ANNOTATION; ESCHERICHIA-COLI; RIBOSOMAL-PROTEINS; SIGNAL PEPTIDES; PROTEOMIC ANALYSIS; AMINO-ACID AB Background: Complete and accurate genome annotation is crucial for comprehensive and systematic studies of biological systems. However, determining protein-coding genes for most new genomes is almost completely performed by inference using computational predictions with significant documented error rates (> 15%). Furthermore, gene prediction programs provide no information on biologically important post-translational processing events critical for protein function. Results: We experimentally annotated the bacterial pathogen Salmonella Typhimurium 14028, using "shotgun" proteomics to accurately uncover the translational landscape and post-translational features. The data provide protein-level experimental validation for approximately half of the predicted protein-coding genes in Salmonella and suggest revisions to several genes that appear to have incorrectly assigned translational start sites, including a potential novel alternate start codon. Additionally, we uncovered 12 non-annotated genes missed by gene prediction programs, as well as evidence suggesting a role for one of these novel ORFs in Salmonella pathogenesis. We also characterized post-translational features in the Salmonella genome, including chemical modifications and proteolytic cleavages. We find that bacteria have a much larger and more complex repertoire of chemical modifications than previously thought including several novel modifications. Our in vivo proteolysis data identified more than 130 signal peptide and N-terminal methionine cleavage events critical for protein function. Conclusion: This work highlights several ways in which application of proteomics data can improve the quality of genome annotations to facilitate novel biological insights and provides a comprehensive proteome map of Salmonella as a resource for systems analysis. C1 [Ansong, Charles; Payne, Samuel H.; Martin, Jessica L.; Burnet, Meagan C.; Monroe, Matthew E.; Smith, Richard D.; Adkins, Joshua N.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Tolic, Nikola; Purvine, Samuel O.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Porwollik, Steffen; McClelland, Michael] Vaccine Res Inst San Diego, San Diego, CA 92121 USA. [Jones, Marcus; Venepally, Pratap; Peterson, Scott N.] J Craig Venter Inst, Pathogen Funct Genom Resource Ctr, Rockville, MD 20850 USA. [Yoon, Hyunjin; Heffron, Fred] Oregon Hlth & Sci Univ, Dept Mol Microbiol & Immunol, Portland, OR 97239 USA. RP Adkins, JN (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. EM Joshua.adkins@pnl.gov RI Smith, Richard/J-3664-2012; Adkins, Joshua/B-9881-2013; OI Smith, Richard/0000-0002-2381-2349; Adkins, Joshua/0000-0003-0399-0700; Payne, Samuel/0000-0002-8351-1994; McClelland, Michael/0000-0003-1788-9347 FU National Institute of Allergy and Infectious Diseases NIH/DHHS [Y1-AI-8401-01]; NIH National Center for Research Resources [RR 018522]; U. S. Department of Energy Office of Biological and Environmental Research (DOE/BER) FX We thank Dr. Alexandra Rutledge for insightful input and fruitful discussions. This work was supported in part by the National Institute of Allergy and Infectious Diseases NIH/DHHS through interagency agreement Y1-AI-8401-01 (project website http://www.SysBEP.org with links to raw proteomics data). This work used instrumentation and capabilities developed under support from the NIH National Center for Research Resources (Grant RR 018522) and the U. S. Department of Energy Office of Biological and Environmental Research (DOE/BER). Major portions of the work were performed in the Environmental Molecular Sciences Laboratory, a U. S. Department of Energy (DOE)/BER national scientific user facility on the Pacific Northwest National Laboratory (PNNL) campus. PNNL is operated for the DOE by Battelle. The funding entities had no roles in design; collection, analysis, and interpretation of data; writing of the manuscript; and in the decision to submit the manuscript for publication. NR 87 TC 20 Z9 20 U1 0 U2 7 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2164 J9 BMC GENOMICS JI BMC Genomics PD AUG 25 PY 2011 VL 12 AR 433 DI 10.1186/1471-2164-12-433 PG 17 WC Biotechnology & Applied Microbiology; Genetics & Heredity SC Biotechnology & Applied Microbiology; Genetics & Heredity GA 821EG UT WOS:000294957100002 PM 21867535 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Bansal, S Benucci, L De Wolf, EA Janssen, X Maes, J Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Vander Velde, C Vanlaer, P Adler, V Cimmino, A Costantini, S Grunewald, M Klein, B Lellouch, J Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L Gil, EC De Jeneret, JDF Delaere, C Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Nuttens, C Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Brito, L Damiao, DD Pol, ME Souza, MHG Alda, WL Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A Bernardes, CA Dias, FA Tomei, TRFP Gregores, EM Lagana, C Marinho, F Mercadante, PG Novaes, SF Padula, SS Darmenov, N Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Dimitrov, A Hadjiiska, R Karadzhinova, A Kozhuharov, V Litov, L Mateev, M Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Meng, X Tao, J Wang, J Wang, J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Khalil, S Mahmoud, MA Hektor, A Kadastik, M Muntel, M Raidal, M Rebane, L Tiko, A Azzolini, V Eerola, P Fedi, G Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Karjalainen, A Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, P Charlot, C Dahms, T Dobrzynski, L Elgammal, S de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beauceron, S Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Lomidze, D Anagnostou, G Beranek, S Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Ata, M Dietz-Laursonn, E Erdmann, M Fischer, R Hebbeker, T Hinzmann, A Hoepfner, K Hoing, RS Klimkovich, T Klingebiel, D Kreuzer, P Lanske, D Lingemann, J Magass, C Merschmeyer, M Meyer, A Papacz, P Pieta, H Reithler, H Schmitz, SA Sonnenschein, L Steggemann, J Teyssier, D Bontenackels, M Davids, M Duda, M Flugge, G Geenen, H Giffels, M Ahmad, WH Heydhausen, D Hoehle, F Kargoll, B Kress, T Kuessel, Y Linn, A Nowack, A Perchalla, L Pooth, O Rennefeld, J Sauerland, P Stahl, A Thomas, M Tornier, D Zoeller, MH Martin, MA Behrenhoff, W Behrens, U Bergholz, M Bethani, A Borras, K Cakir, A Campbell, A Castro, E Dammann, D Eckerlin, G Eckstein, D Flossdorf, A Flucke, G Geiser, A Hauk, J Jung, H Kasemann, M Katkov, I Katsas, P Kleinwort, C Kluge, H Knutsson, A Kramer, M Krucker, D Kuznetsova, E Lange, W Lohmann, W Mankel, R Marienfeld, M Melzer-Pellmann, IA Meyer, AB Mnich, J Mussgiller, A Olzem, J Petrukhin, A Pitzl, D Raspereza, A Raval, A Rosin, M Schmidt, R Schoerner-Sadenius, T Sen, N Spiridonov, A Stein, M Tomaszewska, J Walsh, R Wissing, C Autermann, C Blobel, V Bobrovskyi, S Draeger, J Enderle, H Gebbert, U Gorner, M Kaschube, K Kaussen, G Kirschenmann, H Klanner, R Lange, J Mura, B Naumann-Emme, S Nowak, F Pietsch, N Sander, C Schettler, H Schleper, P Schlieckau, E Schroder, M Schum, T Schwandt, J Stadie, H Steinbruck, G Thomsen, J Barth, C Bauer, J Berger, J Buege, V Chwalek, T De Boer, W Dierlamm, A Dirkes, G Feindt, M Gruschke, J Hackstein, C Hartmann, F Heinrich, M Held, H Hoffmann, KH Honc, S Komaragiri, JR Kuhr, T Martschei, D Mueller, S Muller, T Niegel, M Oberst, O Oehler, A Ott, J Peiffer, T Quast, G Rabbertz, K Ratnikov, F Ratnikova, N Renz, M Rocker, S Saout, C Scheurer, A Schieferdecker, P Schilling, FP Schott, G Simonis, HJ Stober, FM Troendle, D Wagner-Kuhr, J Weiler, T Zeise, M Zhukov, V Ziebarth, EB Daskalakis, G Geralis, T Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I Markou, A Markou, C Mavrommatis, C Ntomari, E Petrakou, E Gouskos, L Mertzimekis, TJ Panagiotou, A Stiliaris, E Evangelou, I Foudas, C Kokkas, P Manthos, N Papadopoulos, I Patras, V Triantis, FA Aranyi, A Bencze, G Boldizsar, L Hajdu, C Hidas, P Horvath, D Kapusi, A Krajczar, K Sikler, F Veres, GI Vesztergombi, G Beni, N Molnar, J Palinkas, J Szillasi, Z Veszpremi, V Raics, P Trocsanyi, ZL Ujvari, B Beri, SB Bhatnagar, V Dhingra, N Gupta, R Jindal, M Kaur, M Kohli, JM Mehta, MZ Nishu, N Saini, LK Sharma, A Singh, AP Singh, J Singh, SP Ahuja, S Choudhary, BC Gupta, P Jain, S Kumar, A Kumar, A Naimuddin, M Ranjan, K Shivpuri, RK Banerjee, S Bhattacharya, S Dutta, S Gomber, B Jain, S Khurana, R Sarkar, S Choudhury, RK Dutta, D Kailas, S Kumar, V Mehta, P Mohanty, AK Pant, LM Shukla, P Aziz, T Guchait, M Gurtu, A Maity, M Majumder, D Majumder, G Mazumdar, K Mohanty, GB Saha, A Sudhakar, K Wickramage, N Banerjee, S Dugad, S Mondal, NK Arfaei, H Bakhshiansohi, H Etesami, SM Fahim, A Hashemi, M Jafari, A Khakzad, M Mohammadi, A Najafabadi, MM Mehdiabadi, SP Safarzadeh, B Zeinali, M Abbrescia, M Barbone, L Calabria, C Colaleo, A Creanza, D De Filippis, N De Palma, M Fiore, L Iaselli, G Lusito, L Maggi, G Maggi, M Manna, N Marangelli, B My, S Nuzzo, S Pacifico, N Pierro, GA Pompili, A Pugliese, G Romano, F Roselli, G Selvaggi, G Silvestris, L Trentadue, R Tupputi, S Zito, G Abbiendi, G Benvenuti, AC Bonacorsi, D Braibant-Giacomelli, S Brigliadori, L Capiluppi, P Castro, A Cavallo, FR Cuffiani, M Dallavalle, GM Fabbri, F Fanfani, A Fasanella, D Giacomelli, P Giunta, M Grandi, C Marcellini, S Masetti, G Meneghelli, M Montanari, A Navarria, FL Odorici, F Perrotta, A Primavera, F Rossi, AM Rovelli, T Siroli, G Travaglini, R Albergo, S Cappello, G Chiorboli, M Costa, S Tricomi, A Tuve, C Barbagli, G Ciulli, V Civinini, C D'Alessandro, R Focardi, E Frosali, S Gallo, E Gonzi, S Lenzi, P Meschini, M Paoletti, S Sguazzoni, G Tropiano, A Benussi, L Bianco, S Colafranceschi, S Fabbri, F Piccolo, D Fabbricatore, P Musenich, R Benaglia, A De Guio, F Di Matteo, L Gennai, S Ghezzi, A Malvezzi, S Martelli, A Massironi, A Menasce, D Moroni, L Paganoni, M Pedrini, D Ragazzi, S Redaelli, N Sala, S de Fatis, TT Buontempo, S Montoya, CAC Cavallo, N De Cosa, A Fabozzi, F Iorio, AOM Lista, L Merola, M Paolucci, P Azzi, P Bacchetta, N Bellan, P Bisello, D Branca, A Carlin, R Checchia, P Dorigo, T Dosselli, U Fanzago, F Gasparini, F Gasparini, U Gozzelino, A Lacaprara, S Lazzizzera, I Margoni, M Mazzucato, M Meneguzzo, AT Nespolo, M Perrozzi, L Pozzobon, N Ronchese, P Simonetto, F Torassa, E Tosi, M Vanini, S Zotto, P Zumerle, G Baesso, P Berzano, U Ratti, SP Riccardi, C Torre, P Vitulo, P Viviani, C Biasini, M Bilei, GM Caponeri, B Fano, L Lariccia, P Lucaroni, A Mantovani, G Menichelli, M Nappi, A Romeo, F Santocchia, A Taroni, S Valdata, M Azzurri, P Bagliesi, G Bernardini, J Boccali, T Broccolo, G Castaldi, R D'Agnolo, RT Dell'Orso, R Fiori, F Foa, L Giassi, A Kraan, A Ligabue, F Lomtadze, T Martini, L Messineo, A Palla, F Segneri, G Serban, AT Spagnolo, P Tenchini, R Tonelli, G Venturi, A Verdini, PG Barone, L Cavallari, F Del Re, D Di Marco, E Diemoz, M Franci, D Grassi, M Longo, E Meridiani, P Nourbakhsh, S Organtini, G Pandolfi, F Paramatti, R Rahatlou, S Rovelli, C Amapane, N Arcidiacono, R Argiro, S Arneodo, M Biino, C Botta, C Cartiglia, N Castello, R Costa, M Demaria, N Graziano, A Mariotti, C Marone, M Maselli, S Migliore, E Mila, G Monaco, V Musich, M Obertino, MM Pastrone, N Pelliccioni, M Potenza, A Romero, A Ruspa, M Sacchi, R Sola, V Solano, A Staiano, A Pereira, AV Belforte, S Cossutti, F Della Ricca, G Gobbo, B Montanino, D Penzo, A Heo, SG Nam, SK Chang, S Chung, J Kim, DH Kim, GN Kim, JE Kong, DJ Park, H Ro, SR Son, D Son, DC Son, T Kim, Z Kim, JY Song, S 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CA CMS Collaboration TI Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV SO PHYSICAL REVIEW LETTERS LA English DT Article ID SPIN; LHC AB Electroweak production of the top quark is measured for the first time in pp collisions at root s = 7 TeV, using a data set collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb(-1). With an event selection optimized for t-channel production, two complementary analyses are performed. The first one exploits the special angular properties of the signal, together with background estimates from the data. The second approach uses a multivariate analysis technique to probe the compatibility with signal topology expected from electroweak top-quark production. The combined measurement of the cross section is 83.6 +/- 29.8 (stat + syst) +/- 3.3(lumi) pb, consistent with the standard model expectation. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. 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Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Plestina, R.; Baffioni, S.; Benhabib, L.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dahms, T.; Dobrzynski, L.; Elgammal, S.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France. [Agram, J-L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J-M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J-C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A-C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, CNRS, Inst Pluridisciplinaire Hubert Curien,IN2P3, Strasbourg, France. [Fassi, F.; Mercier, D.] IN2P3, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beauceron, S.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chasserat, J.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tschudi, Y.; Verdier, P.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France. [Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia. [Ata, M.; Dietz-Laursonn, E.; Erdmann, M.; Fischer, R.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Hoeing, R. S.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Lingemann, J.; Magass, C.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I-A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Raval, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, D-2000 Hamburg, Germany. [Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Goerner, M.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schroeder, M.; Schum, T.; Schwandt, J.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Roecker, S.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F-P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Stiliaris, E.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdu, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Kumar, A.; Naimuddin, M.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Jain, S.; Khurana, R.; Sarkar, S.] Saha Inst Nucl Phys, Kolkata, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. 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A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Montanari, A.; Odorici, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. 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[Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Gozzelino, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Merola, M.; Bellan, P.; Bisello, D.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Pioppi, M.] Univ Perugia, INFN Sez Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Meridiani, P.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Potenza, A.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. 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[Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Pela, J.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Katkov, I.; Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Maestre, J. Alcaraz; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain. [Hammer, J.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Hajdu, C.; Sikler, F.; Mohanty, A. K.; De Filippis, N.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Gennai, S.; Montoya, C. A. Carrillo; De Cosa, A.; Iorio, A. O. M.; Nespolo, M.; Perrozzi, L.; Lucaroni, A.; Taroni, S.; Boccali, T.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Rovelli, C.; Botta, C.; Graziano, A.; Pela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.; Adiguzel, A.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland. [Baeni, L.; Bortignon, P.; Caminada, L.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M-C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W-S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R-S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A-M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76706 USA. [Henderson, C.] Univ Alabama, Tuscaloosa, AL 35487 USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY 14853 USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06824 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL 32611 USA. [Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Ozturk, S.; Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J-P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA 52242 USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD 21218 USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA 94720 USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y-J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.] Univ Minnesota, Minneapolis, MN 55455 USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.; Zennamo, J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL 60208 USA. [Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR 00680 USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; De Mattia, M.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX 77251 USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Sakumoto, W.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Malik, S.; Mesropian, C.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ 08854 USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN 37996 USA. [Eusebi, R.; Flanagan, W.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA. [Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Issah, M.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN 37235 USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA 22901 USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI 48202 USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Palmonari, F.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA. [Bernardes, C. A.; Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Khalil, S.] British Univ, Cairo, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Agram, J-L.; Conte, E.; Drouhin, F.; Fontaine, J-C.; Karim, M.] Univ Haute Alsace, Mulhouse, France. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. [Krajczar, K.; Veres, G. I.; Vesztergombi, G.] Eotvos Lorand Univ, Budapest, Hungary. [Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Bakhshiansohi, H.; Fahim, A.; Jafari, A.] Sharif Univ Technol, Tehran, Iran. [Mohammadi, A.] Shiraz Univ, Shiraz, Iran. [Zeinali, M.] Isfahan Univ Technol, Esfahan, Iran. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Cavallo, N.; Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Martini, L.] Univ Siena, I-53100 Siena, Italy. [Bell, A. J.] Univ Geneva, Geneva, Switzerland. [Rolandi, G.] Scuola Normale & Sez INFN, Pisa, Italy. [Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Cerci, S.; Cerci, D. Sunar; Tali, B.] Adiyaman Univ, Adiyaman, Turkey. [Sogut, K.] Mersin Univ, Mersin, Turkey. [Demir, D.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey. [Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey. Ege Univ, Izmir, Turkey. [Basso, L.; Belyaev, A.] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England. [Wasserbaech, S.] Utah Valley Univ, Orem, UT USA. [Mermerkaya, H.] Erzincan Univ, Erzincan, Turkey. RP Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. RI Sguazzoni, Giacomo/J-4620-2015; Ligabue, Franco/F-3432-2014; Fassi, Farida/F-3571-2016; Tinoco Mendes, Andre David/D-4314-2011; Lokhtin, Igor/D-7004-2012; Kodolova, Olga/D-7158-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Hektor, Andi/G-1804-2011; Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton, Tim/A-7951-2012; Stahl, Achim/E-8846-2011; Yang, Fan/B-2755-2012; buotempo, salvatore/B-5210-2012; Krammer, Manfred/A-6508-2010; Belyaev, Andrey/E-1540-2012; Katkov, Igor/E-2627-2012; Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Tomei, Thiago/E-7091-2012; Focardi, Ettore/E-7376-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra /G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012; Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler, Manfred/H-3106-2012; Venturi, Andrea/J-1877-2012; de Jesus Damiao, Dilson/G-6218-2012; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Mercadante, Pedro/K-1918-2012; Della Ricca, Giuseppe/B-6826-2013; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Rolandi, Luigi (Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Markina, Anastasia/E-3390-2012; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini, Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ferguson, Thomas/O-3444-2014; Ragazzi, Stefano/D-2463-2009; Benussi, Luigi/O-9684-2014; Russ, James/P-3092-2014; Dahms, Torsten/A-8453-2015; Grandi, Claudio/B-5654-2015; Leonidov, Andrey/P-3197-2014; Bernardes, Cesar Augusto/D-2408-2015; Ahmed, Ijaz/E-9144-2015; Varela, Joao/K-4829-2016; Menasce, Dario Livio/A-2168-2016; Bargassa, Pedrame/O-2417-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Gerbaudo, Davide/J-4536-2012; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov, Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; Cakir, Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Ozdemir, Kadri/P-8058-2014; Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Lazzizzera, Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; vilar, rocio/P-8480-2014; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; Matorras, Francisco/I-4983-2015; My, Salvatore/I-5160-2015; Rovelli, Tiziano/K-4432-2015 OI Bilki, Burak/0000-0001-9515-3306; Safdi, Benjamin R./0000-0001-9531-1319; Lloret Iglesias, Lara/0000-0002-0157-4765; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350; Ligabue, Franco/0000-0002-1549-7107; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Heredia De La Cruz, Ivan/0000-0002-8133-6467; Ghezzi, Alessio/0000-0002-8184-7953; bianco, stefano/0000-0002-8300-4124; Tinoco Mendes, Andre David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Stahl, Achim/0000-0002-8369-7506; Krammer, Manfred/0000-0003-2257-7751; Katkov, Igor/0000-0003-3064-0466; Tomei, Thiago/0000-0002-1809-5226; Focardi, Ettore/0000-0002-3763-5267; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ferguson, Thomas/0000-0001-5822-3731; Ragazzi, Stefano/0000-0001-8219-2074; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Dahms, Torsten/0000-0003-4274-5476; Grandi, Claudio/0000-0001-5998-3070; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255; Gonzi, Sandro/0000-0003-4754-645X; Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146; Bean, Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619; Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario Livio/0000-0002-9918-1686; Bargassa, Pedrame/0000-0001-8612-3332; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Paganoni, Marco/0000-0003-2461-275X; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; Matorras, Francisco/0000-0003-4295-5668; My, Salvatore/0000-0002-9938-2680; Rovelli, Tiziano/0000-0002-9746-4842 FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences (Estonia); NICPB (Estonia); Academy of Finland (Finland); ME (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST (Russia); MAE (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey); TAEK (Turkey); STFC (United Kingdom); DOE (USA); NSF (USA) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 35 TC 51 Z9 51 U1 2 U2 46 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 25 PY 2011 VL 107 IS 9 AR 091802 DI 10.1103/PhysRevLett.107.091802 PG 15 WC Physics, Multidisciplinary SC Physics GA 812DT UT WOS:000294268700004 PM 21929225 ER PT J AU Jakubikova, E Campbell, IH Martin, RL AF Jakubikova, Elena Campbell, Ian H. Martin, Richard L. TI Effects of Peripheral and Axial Substitutions on Electronic Transitions of Tin Naphthalocyanines SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID EFFECTIVE CORE POTENTIALS; DENSITY-FUNCTIONAL THEORY; LIGHT-EMITTING-DIODES; SOLAR-CELLS; EXCITATION-ENERGIES; BASIS-SETS; ABSORPTION; MOLECULES; PHTHALOCYANINES; APPROXIMATION AB Tin naphthalocyanine molecules display strong absorption in the infrared region (IR), making them ideal as components of organic photodiodes and solar Cells. We use density functional theory and time-dependent density functional theory (TD-DFT) at the B3LYP level to study the influence of axial and peripheral ligands on the absorption wavelength of tin naphthalocyanines. We find that TD-DFT is successful at reproducing the experimental absorption spectra of free base naphthalocyanine and tin naphthalocyanine molecules and can be used as a reliable tool to predict absorption spectra of substituted naphthalocyanines. Functional groups attached axially to tin (-F, -Cl, -Br, -I) and peripherally to the inner ring (-F, -Cl, -Br, -Ph, -OH, -COCH(3), -O(CH(2))(3)CH(3)) of the tin naphthalocyanine molecule tune the excitation wavelength in the near-infrared region between 770 and 940 nm. While substituents to the outer naphthalocyanine ring (-Cl, -Br) affect the intensity of the absorption peaks in the NIR region, they do not influence their absorption wavelength. Asymmetric substitution. of naphthalocyanine pendant arms can be employed to decrease intensity of the absorption peaks in the visible region with respect to the intensity of the peaks in the NIR. C1 [Jakubikova, Elena] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA. [Campbell, Ian H.; Martin, Richard L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Martin, RL (reprint author), N Carolina State Univ, Dept Chem, Box 8204, Raleigh, NC 27695 USA. EM rlm@lanl.gov FU Los Alamos National Laboratory; U.S. Department of Energy [DE-AC52-06NA25396] FX Authors thank Dr. Reza Ghiladi for his generous help with the measurement of UV-vis absorption spectra in solution. This work was supported by the Laboratory Directed Research and Development (LDRD) program at Los Alamos National Laboratory. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under Contract DE-AC52-06NA25396. NR 42 TC 5 Z9 5 U1 2 U2 16 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD AUG 25 PY 2011 VL 115 IS 33 BP 9265 EP 9272 DI 10.1021/jp205705e PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 809SH UT WOS:000294076500021 PM 21800923 ER PT J AU Khodjasteh, K Dobrovitski, VV Viola, L AF Khodjasteh, Kaveh Dobrovitski, Viatcheslav V. Viola, Lorenza TI Pointer states via engineered dissipation SO PHYSICAL REVIEW A LA English DT Article ID OPEN QUANTUM-SYSTEMS; COHERENT STATES; FIDELITY DECAY; DECOHERENCE; COMPUTATION; SUBSYSTEMS; SIMULATION; DYNAMICS; NOISE; QUBIT AB Pointer states are long-lasting high-fidelity states in open quantum systems. We show how any pure state in a non-Markovian open quantum system can be made to behave as a pointer state by suitably engineering the coupling to the environment via open-loop periodic control. Engineered pointer states are constructed as approximate fixed points of the controlled open-system dynamics, in such away that they are guaranteed to survive over a long time with a fidelity determined by the relative precision with which the dynamics is engineered. We provide quantitative minimum-fidelity bounds by identifying symmetry and ergodicity conditions that the decoherence-inducing perturbation must obey in the presence of control, and develop explicit pulse sequences for engineering any desired set of orthogonal states as pointer states. These general control protocols are validated through exact numerical simulations as well as semiclassical approximations in realistic single- and two-qubit dissipative systems. We also examine the role of control imperfections, and show that while pointer-state engineering protocols are highly robust in the presence of systematic pulse errors, the latter can also lead to unintended pointer-state generation in dynamical decoupling implementations, explaining the initial-state selectivity observed in recent experiments. C1 [Khodjasteh, Kaveh; Viola, Lorenza] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA. [Dobrovitski, Viatcheslav V.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Khodjasteh, K (reprint author), Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA. FU NSF [PHY-0903727]; Department of Energy-Basic Energy Sciences [DE-AC02-07CH11358] FX L. V. gratefully acknowledges support from the NSF through Award No. PHY-0903727. It is a pleasure to thank Francesco Ticozzi and Winton G. Brown for insightful discussions during the course of this work. Work at Ames Laboratory was supported by the Department of Energy-Basic Energy Sciences under Contract No. DE-AC02-07CH11358. NR 80 TC 11 Z9 11 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 EI 1094-1622 J9 PHYS REV A JI Phys. Rev. A PD AUG 25 PY 2011 VL 84 IS 2 AR 022336 DI 10.1103/PhysRevA.84.022336 PG 21 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 812CD UT WOS:000294264400009 ER PT J AU Xu, ZX Chiesa, S Yang, SX Su, SQ Sheehy, DE Moreno, J Scalettar, RT Jarrell, M AF Xu, Zhaoxin Chiesa, Simone Yang, Shuxiang Su, Shi-Quan Sheehy, Daniel E. Moreno, Juana Scalettar, Richard T. Jarrell, Mark TI Response to dynamical modulation of the optical lattice for fermions in the Hubbard model SO PHYSICAL REVIEW A LA English DT Article ID MOTT INSULATOR AB Fermionic atoms in a periodic optical lattice provide a realization of the single-band Hubbard model. Using quantum Monte Carlo simulations along with the maximum-entropy method, we evaluate the effect of a time-dependent perturbative modulation of the optical lattice amplitude on atomic correlations, revealed in the fraction of doubly occupied sites. We find that the effect of modulation depends strongly on the filling-the response of the double occupation is significantly different in the half-filled Mott insulator from that in the doped Fermi liquid region. C1 [Xu, Zhaoxin; Yang, Shuxiang; Su, Shi-Quan; Sheehy, Daniel E.; Moreno, Juana; Jarrell, Mark] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. [Chiesa, Simone; Scalettar, Richard T.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Chiesa, Simone] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. [Su, Shi-Quan] Oak Ridge Natl Lab, Ctr Computat Sci, Oak Ridge, TN 37831 USA. RP Xu, ZX (reprint author), Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. RI Moreno, Juana/D-5882-2012 FU NSF [OISE-0952300, OCI-0904972]; DOE [CMSN DE-FG02-04ER46129, SciDAC DE-FC02-06ER25792]; ARO [W911NF0710576]; Louisiana Board of Regents [LEQSF RD-A-10]; U.S. Department of Energy and Oak Ridge Associated Universities [DE-AC05-00OR22750]; NSF TeraGrid [TG-DMR100007] FX We gratefully acknowledge discussions with L. Tarruell. This work is supported by NSF Grant No. OISE-0952300 (Z.X., J.M., and M.J.), DOE Grants No. CMSN DE-FG02-04ER46129 (Z.X.) and No. SciDAC DE-FC02-06ER25792 (M.J. and R.T.S.), ARO Grant No. W911NF0710576 with funds from the DARPA OLE Program (R.T.S.), NSF Grant No. OCI-0904972 (S.C.), and the Louisiana Board of Regents under Grant No. LEQSF RD-A-10 (D.E.S.). S.-Q.S. performed the above research partly under Contract No. DE-AC05-00OR22750 between the U.S. Department of Energy and Oak Ridge Associated Universities. Supercomputer support was provided by the NSF TeraGrid under Grant No. TG-DMR100007. NR 12 TC 5 Z9 5 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG 25 PY 2011 VL 84 IS 2 AR 021607 DI 10.1103/PhysRevA.84.021607 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 812CD UT WOS:000294264400002 ER PT J AU Cho, JY Shi, X Salvador, JR Meisner, GP Yang, J Wang, H Wereszczak, AA Zhou, X Uher, C AF Cho, J. Y. Shi, X. Salvador, J. R. Meisner, G. P. Yang, J. Wang, H. Wereszczak, A. A. Zhou, X. Uher, C. TI Thermoelectric properties and investigations of low thermal conductivity in Ga-doped Cu2GeSe3 SO PHYSICAL REVIEW B LA English DT Article ID POWER-GENERATION; CHALCOGENIDES; CRYSTALS; ALLOYS; SYSTEM; PHASE AB In this study, we synthesized a series of low thermal conductivity diamondlike materials with the general formula Cu2GaxGe1-xSe3 for 0 <= x <= 0.1, and their transport properties were evaluated to establish their suitability for thermoelectric-based waste heat recovery applications. We report results for the Seebeck coefficient (S), electrical resistivity (rho), thermal conductivity (kappa), Hall coefficient (R-H), crystal structure, and elastic properties of Cu2GaxGe1-xSe3 for x = 0.01, 0.03, 0.05, 0.07 and 0.1. Powder x-ray diffraction revealed that a small amount of a related cubic polymorph appeared, along with the orthorhombic parent phase, at high Ga concentrations. This cubic phase is related to the parent phase in that both contain three-dimensional tetrahedral diamondlike substructures. All samples showed positive values of S and R-H over the entire temperature range studied, indicative of p-type charge carriers. The largest value of S = 446 mu V K-1 was observed at 745 K for undoped Cu2GeSe3. With increasing Ga content, both S and rho decreased. Low values of kappa were observed for all samples, with the lowest value of kappa = 0.67 W m(-1) K-1 at 745 K for undoped Cu2GeSe3. This value approaches the theoretical minimum thermal conductivity for these materials at high temperatures. An unusually large Gruneisen parameter (gamma), a measure of bonding anharmonicity, was observed for Cu2Ga0.1Ge0.9Se3 even though this diamondlike material has highly symmetric, lower coordination number tetrahedral bonding. A value of gamma = 1.7 was calculated from the measured values of the elastic properties, heat capacity, and volume thermal expansion. Given that all materials investigated have similar elastic property values and likely comparable coefficients of thermal expansion, we surmise that this large Gruneisen parameter is a general feature for this material system. We conclude that this high level of anharmonicity gives rise to enhanced phonon-phonon scattering, in addition to the scattering brought about by the disordered structure, resulting in very low values of thermal conductivity. C1 [Cho, J. Y.; Shi, X.] Optimal Inc, Plymouth Township, MI 48170 USA. [Salvador, J. R.; Meisner, G. P.] Gen Motors Res & Dev Ctr, Chem Sci & Mat Syst Lab, Warren, MI 48090 USA. [Yang, J.] Gen Motors Res & Dev Ctr, Electrochem Energy Res Lab, Warren, MI 48090 USA. [Wang, H.; Wereszczak, A. A.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Zhou, X.; Uher, C.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. RP Cho, JY (reprint author), Optimal Inc, Plymouth Township, MI 48170 USA. EM james.salvador@gm.com RI shi, xun/B-4499-2009; Yang, Jihui/A-3109-2009; Wang, Hsin/A-1942-2013; Wereszczak, Andrew/I-7310-2016; Zhou, Xiaoyuan/B-3288-2017 OI shi, xun/0000-0002-3806-0303; Wang, Hsin/0000-0003-2426-9867; Wereszczak, Andrew/0000-0002-8344-092X; Zhou, Xiaoyuan/0000-0003-1088-0809 FU General Motors; U.S. Department of Energy (DOE) [DE-FC26-04NT42278]; US DOE, Office of Basic Energy Sciences [DE-SC0001054]; Department of Energy [DE-AC05000OR22725] FX This work is supported by General Motors and by the U.S. Department of Energy (DOE) under Corporate Agreement No. DE-FC26-04NT42278. We highly appreciate the elemental analysis provided by R. Waldo and powder XRD measurements performed by R. Speer Jr. The work at the University of Michigan (high temperature thermal conductivity measurements) is supported as part of Revolutionary Materials for Solid State Energy Conversion, an Energy Frontier Research Center funded by the US DOE, Office of Basic Energy Sciences, under Award No. DE-SC0001054. This work is also supported by Oak Ridge National laboratory managed by the UT-Battelle LLC, for the Department of Energy under contract DE-AC05000OR22725. NR 35 TC 41 Z9 42 U1 7 U2 54 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 25 PY 2011 VL 84 IS 8 AR 085207 DI 10.1103/PhysRevB.84.085207 PG 9 WC Physics, Condensed Matter SC Physics GA 812CT UT WOS:000294266000004 ER PT J AU Wang, JKK Zhao, LL Yin, Q Kotliar, G Kim, MS Aronson, MC Morosan, E AF Wang, Jiakui K. Zhao, Liang L. Yin, Quan Kotliar, G. Kim, M. S. Aronson, M. C. Morosan, E. TI Layered transition-metal pnictide SrMnBi2 with metallic blocking layer SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; IRON PNICTIDES; HEAT; FE AB The physical properties and the band structure of the layered pnictide SrMnBi2 were investigated. This compound has a crystal structure similar to that of the superconducting Fe pnictides, and is a bad metal with large residual resistivity. Magnetic order sets in at very high temperatures, around 290 K, as shown by magnetization, resistivity, and specific heat data. Band structure calculations using density functional theory (DFT) are consistent with the thermodynamic and transport measurements, suggesting a checkerboard antiferromagnetic (cAFM) ground state and a localized picture for the magnetism. Moreover, DFT results indicate that the Mn 3d electrons are strongly correlated, and that, unlike in the known superconductors, the Sr-Bi-(1) layer is metallic. One more notable feature of the DFT calculation is the multiple Dirac-cone-like dispersion close to the Fermi level. C1 [Wang, Jiakui K.; Zhao, Liang L.; Morosan, E.] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA. [Yin, Quan; Kotliar, G.] Rutgers State Univ, Dept Phys, Piscataway, NJ 08854 USA. [Kim, M. S.; Aronson, M. C.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Kim, M. S.; Aronson, M. C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RP Wang, JKK (reprint author), Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA. RI Yin, Quan/A-4450-2012 FU AFOSR MURI; Department of Energy, Office of Basic Energy Sciences FX Work at Rice University (J.K.W., L.L.Z., and E.M.) and Rutgers University (Q.Y. and G.K.) was supported by AFOSR MURI. Work at Brookhaven National Laboratory (M.C.A. and M.S.K.) was performed under the auspices of the Department of Energy, Office of Basic Energy Sciences. The authors thank Y. Li, K. Evans, and D. Natelson for useful discussions. NR 29 TC 28 Z9 30 U1 7 U2 43 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 25 PY 2011 VL 84 IS 6 AR 064428 DI 10.1103/PhysRevB.84.064428 PG 6 WC Physics, Condensed Matter SC Physics GA 812CO UT WOS:000294265500001 ER PT J AU Kharzeev, DE Yee, HU AF Kharzeev, Dmitri E. Yee, Ho-Ung TI Anomalies and time reversal invariance in relativistic hydrodynamics: The second order and higher dimensional formulations SO PHYSICAL REVIEW D LA English DT Article ID MAGNETIC-FIELD; BLACK-HOLES; EQUILIBRIUM; MATTER; TEMPERATURE; VIOLATION; CURRENTS; QCD AB We present two new results on relativistic hydrodynamics with anomalies and external electromagnetic fields, "chiral magnetohydrodynamics" (CMHD). First, we study CMHD in four dimensions at second order in the derivative expansion assuming the conformal/Weyl invariance. We classify all possible independent conformal second order viscous corrections to the energy-momentum tensor and to the U(1) current in the presence of external electric and/or magnetic fields, and identify 18 terms that originate from the triangle anomaly. We then propose and motivate the following guiding principle to constrain the CMHD: the anomaly-induced terms that are even under the time-reversal invariance should not contribute to the local entropy production rate. This allows us to fix 13 out of the 18 transport coefficients that enter the second order formulation of CMHD. We also relate one of our second order transport coefficients to the chiral shear waves. Our second subject is hydrodynamics with (N + 1)-gon anomaly in an arbitrary 2N dimensions. The effects from the (N + 1)-gon anomaly appear in hydrodynamics at (N - 1)th order in the derivative expansion, and we identify precisely N such corrections to the U(1) current. The time-reversal constraint is powerful enough to allow us to find the analytic expressions for all transport coefficients. We confirm the validity of our results (and of the proposed guiding principle) by an explicit fluid/gravity computation within the AdS/CFT correspondence. C1 [Kharzeev, Dmitri E.; Yee, Ho-Ung] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kharzeev, Dmitri E.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Kharzeev, DE (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. EM dmitri.kharzeev@stonybrook.edu; hyee@tonic.physics.sunysb.edu FU U.S. Department of Energy [DE-FG-88ER40388, DE-AC02-98CH10886, DE-FG-88ER41723] FX We thank Y. Burnier, J. Ellis, J. Liao, Y. Oz, E. Shuryak, D. Son, D. Teaney, A. Yarom and I. Zahed for useful discussions. D. K. is grateful to CERN Theory Division for hospitality during the completion of this work. This research was supported by the U.S. Department of Energy under Contracts Nos. DE-FG-88ER40388, DE-AC02-98CH10886, and DE-FG-88ER41723. NR 65 TC 60 Z9 60 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 25 PY 2011 VL 84 IS 4 AR 045025 DI 10.1103/PhysRevD.84.045025 PG 21 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 812DF UT WOS:000294267300003 ER PT J AU Mertens, FG Quintero, NR Barashenkov, IV Bishop, AR AF Mertens, Franz G. Quintero, Niurka R. Barashenkov, I. V. Bishop, A. R. TI Refined empirical stability criterion for nonlinear Schrodinger solitons under spatiotemporal forcing SO PHYSICAL REVIEW E LA English DT Article ID AC-DRIVEN; BROWNIAN MOTORS; DARK SOLITONS; EQUATION; RATCHETS; EXCITATIONS; EXISTENCE; EVOLUTION; DYNAMICS; SYSTEMS AB We investigate the dynamics of traveling oscillating solitons of the cubic nonlinear Schrodinger (NLS) equation under an external spatiotemporal forcing of the form f(x, t) = a exp[i K(t)x]. For the case of time-independent forcing, a stability criterion for these solitons, which is based on a collective coordinate theory, was recently conjectured. We show that the proposed criterion has a limited applicability and present a refined criterion which is generally applicable, as confirmed by direct simulations. This includes more general situations where K(t) is harmonic or biharmonic, with or without a damping term in the NLS equation. The refined criterion states that the soliton will be unstable if the "stability curve" p(v), where p(t) and v(t) are the normalized momentum and the velocity of the soliton, has a section with a negative slope. In the case of a constant K and zero damping, we use the collective coordinate solutions to compute a "phase portrait" of the soliton where its dynamics is represented by two-dimensional projections of its trajectories in the four-dimensional space of collective coordinates. We conjecture, and confirm by simulations, that the soliton is unstable if a section of the resulting closed curve on the portrait has a negative sense of rotation. C1 [Mertens, Franz G.] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany. [Quintero, Niurka R.] Univ Seville, Dept Fis Aplicada 1, EUP, E-41011 Seville, Spain. [Barashenkov, I. V.] Univ Cape Town, Dept Math, ZA-7701 Rondebosch, South Africa. [Bishop, A. R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Mertens, FG (reprint author), Univ Bayreuth, Inst Phys, POB 101251, D-95440 Bayreuth, Germany. EM franz.mertens@uni-bayreuth.de; niurka@us.es RI Quintero, Niurka/J-7550-2013 OI Quintero, Niurka/0000-0003-3503-3040 FU US Department of Energy; University of Seville; Junta de Andalucia [IAC09-III-6399, FQM207, FQM-00481, P06-FQM-01735, P09-FQM-4643]; DAAD [A/08/04067]; Ministerio de Educacion y Ciencia (MEC, Spain) [FIS2008-02380/FIS] FX F.G.M. acknowledges the hospitality of the Mathematical Institute of the University of Seville (IMUS) and of the Theoretical Division and Center for Nonlinear Studies at the Los Alamos National Laboratory. Work at Los Alamos was supported by the US Department of Energy. F.G.M. acknowledges financial support by the Plan Propio of the University of Seville and by Junta de Andalucia under Grant No. IAC09-III-6399. N.R.Q. acknowledges financial support by the DAAD under Grant No. A/08/04067, by the Ministerio de Educacion y Ciencia (MEC, Spain) through Project No. FIS2008-02380/FIS, and by Junta de Andalucia under Projects No. FQM207, No. FQM-00481, No. P06-FQM-01735, and No. P09-FQM-4643. NR 48 TC 9 Z9 9 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 EI 1550-2376 J9 PHYS REV E JI Phys. Rev. E PD AUG 25 PY 2011 VL 84 IS 2 AR 026614 DI 10.1103/PhysRevE.84.026614 PN 2 PG 11 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 812YZ UT WOS:000294332600002 PM 21929135 ER PT J AU Yu, HG AF Yu, Hua-Gen TI An optimal density functional theory method for GaN and ZnO SO CHEMICAL PHYSICS LETTERS LA English DT Article ID (GA1-XZNX)(N1-XOX) SOLID-SOLUTION; VISIBLE-LIGHT ABSORPTION; PHOTOCATALYTIC ACTIVITY; CRYSTAL-STRUCTURE; EXACT-EXCHANGE; WATER; SEMICONDUCTORS; ORIGIN; STATES; PERFORMANCE AB We report an optimal DFT method (bBLYP) for studying the GaN and ZnO systems. It is developed by modifying the exchange functional in the hybrid BLYP method in order to overcome the flaw of traditional DFT that often predict a rather small band gap for those semiconductors. Results show that the bBLYP method can describe not only correct band gaps of both GaN and ZnO wurtzite crystals, but also accurate properties of relevant small molecules. The application study of crystal-cut nanoparticles and nanowires reveals a new mechanism for band gap narrowing in GaN/ZnO. (C) 2011 Elsevier B.V. All rights reserved. C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Yu, HG (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM hgy@bnl.gov RI Yu, Hua-Gen/N-7339-2015 FU Brookhaven National Laboratory [DE-AC02-98CH10886]; National Energy Research Scientific Computing Center (NERSC) [DE-AC02-05CH11231]; U.S. Department of Energy, Division of Chemical Sciences, Office of Basic Energy Sciences FX The author thanks Dr. W.-Q. Han for discussions. This work was performed at the Brookhaven National Laboratory under Contract No. DE-AC02-98CH10886, and used resources of the National Energy Research Scientific Computing Center (NERSC) under Contract No. DE-AC02-05CH11231, with the U.S. Department of Energy and supported by its Division of Chemical Sciences, Office of Basic Energy Sciences. NR 47 TC 7 Z9 7 U1 8 U2 31 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD AUG 25 PY 2011 VL 512 IS 4-6 BP 231 EP 236 DI 10.1016/j.cplett.2011.07.034 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 807GI UT WOS:000293883900020 ER PT J AU Nedd, S Kobayashi, T Tsai, CH Slowing, II Pruski, M Gordon, MS AF Nedd, Sean Kobayashi, Takeshi Tsai, Chih-Hsiang Slowing, Igor I. Pruski, Marek Gordon, Mark S. TI Using a Reactive Force Field To Correlate Mobilities Obtained from Solid-State C-13 NMR on Mesoporous Silica Nanoparticle Systems SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID AB-INITIO CALCULATIONS; MOLECULAR-MECHANICS; HYDROCARBONS; CONDENSATION; SPECTROSCOPY; SIMULATIONS; CATALYSIS; CRYSTAL; QUANTUM; REAXFF AB Theoretical calculations and solid-state NMR have been used to determine the conformation, relative energies, and behavior of organic functional groups covalently bound within the pores of mesoporous silica nanoparticles (MSNs). The calculations were performed using the ReaxFF reactive force field for model surfaces consisting of a four-layer silica slab with one or two functional groups: N-(2-aminoethyl)3-aminopropyl- (AAP), N-[N-(2-aminoethyl)-2-aminoethyl]-3-aminopropyl- (AEP), or 3-cyanopropyl- (CP). The results indicate that the AAP and AEP groups exist primarily in the prone orientation, while CP can almost equally occupy both the prone and upright orientations in CP-MSN. This is in agreement with the solid-state C-13 NMR experiments, which suggest that the AAP and AEP functionalities remain rigid on the NMR. time scale (in this case sub-millisecond), whereas the CP substituent executes faster motions. These conformations are most likely governed by the hydrogen bonds between the amine moieties of the functional groups and the silanol groups on the silica surface. ReaxFF can be used to study a system that requires a large-scale model, such as the surface of an organo-functionalized heterogeneous catalyst, with higher accuracy than the conventional MM and at a lower computational cost than ab initio quantum mechanical calculations. C1 [Nedd, Sean; Kobayashi, Takeshi; Slowing, Igor I.; Pruski, Marek; Gordon, Mark S.] Iowa State Univ, US DOE Ames Lab, Ames, IA 50011 USA. [Tsai, Chih-Hsiang; Slowing, Igor I.; Pruski, Marek; Gordon, Mark S.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Pruski, M (reprint author), Iowa State Univ, US DOE Ames Lab, Ames, IA 50011 USA. EM marek@ameslab.gov; mark@si.msg.chem.iastate.edu OI Slowing, Igor/0000-0002-9319-8639 FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-07CH11358] FX This work was inspired by Professor Victor Lin, whose presence at Iowa State University is greatly missed. The authors thank Dr. Adri van Duin for valuable discussions on the use and implementation of ReaxFF and its parameters into GAMESS and Dr. Bosiljka Njegic for valuable discussions on certain computational aspects. This research was supported at the Ames Laboratory by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract DE-AC02-07CH11358. NR 35 TC 9 Z9 9 U1 1 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 25 PY 2011 VL 115 IS 33 BP 16333 EP 16339 DI 10.1021/jp204510m PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 809SM UT WOS:000294077000011 ER PT J AU Braun, A Erat, S Zhang, XJ Chen, QL Huang, TW Aksoy, F Lohnert, R Liu, Z Mao, SS Graule, T AF Braun, Artur Erat, Selma Zhang, Xiaojun Chen, Qianli Huang, Tzu-Wen Aksoy, Funda Loehnert, Romy Liu, Zhi Mao, Samuel S. Graule, Thomas TI Surface and Bulk Oxygen Vacancy Defect States near the Fermi Level in 125 nm WO3-delta/TiO2 (110) Films: A Resonant Valence Band Photoemission Spectroscopy Study SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TUNGSTEN-OXIDE FILMS; WO3 THIN-FILMS; PHOTOELECTRON-SPECTROSCOPY; PHASE-TRANSITIONS; BRONZES; GROWTH; LIGHT AB An approximately 125 nm thick pulsed laser deposited blue, nonstoichiometric WO3-delta film grows on TiO2 (110) in the [220] direction. Oxidative treatment at 400 degrees C turns the film color from blue to yellow and improves the film quality considerably, as shown by improvement of the Kiessig oscillations in the X-ray reflectometry curves. Detailed analysis of resonant valence band photoemission spectra of the as-deposited nonstoichiometric blue film and oxidized yellow film suggests that a transition near the Fermi energy originates from the nonstoichiometry, i.e., oxygen deficiency, and insofar poses electronic defect states that partially can be eliminated by heat treatment in oxygen. The defects of the as-deposited blue film seem to be located throughout the film, except for the top surface due to exposure to oxygen in ambient air. Thermal after-treatment under oxygen heals the defects in the bulk, whereas residual defect states appear to remain near the film-substrate interface. Potential strain at the substrate-film interface due to lattice mismatch may be one origin for the remanence of the defect states in the bulk. C1 [Braun, Artur; Erat, Selma; Chen, Qianli; Huang, Tzu-Wen; Loehnert, Romy; Graule, Thomas] Swiss Fed Labs Mat Sci & Technol, Lab High Performance Ceram Empa, CH-8600 Dubendorf, Switzerland. [Braun, Artur] Univ Hawaii Manoa, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA. [Erat, Selma] Swiss Fed Inst Technol, Swiss Fed Inst Technol, Dept Mat, CH-8093 Zurich, Switzerland. [Erat, Selma] Mersin Univ, Adv Technol Res & Applicat Ctr, TR-33343 Yenisehir, Mersin, Turkey. [Zhang, Xiaojun; Mao, Samuel S.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. [Zhang, Xiaojun; Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Chen, Qianli] Swiss Fed Inst Technol, Swiss Fed Inst Technol, Dept Phys, CH-8093 Zurich, Switzerland. [Aksoy, Funda] Cukurova Univ, Dept Phys, TR-01330 Adana, Turkey. [Aksoy, Funda; Liu, Zhi] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Loehnert, Romy] Univ Appl Sci Jena, Dept SciTec, D-07745 Jena, Germany. [Graule, Thomas] Tech Univ Bergakad Freiberg, D-09064 Freiberg, Germany. RP Braun, A (reprint author), Swiss Fed Labs Mat Sci & Technol, Lab High Performance Ceram Empa, CH-8600 Dubendorf, Switzerland. EM artur.braun@alumni.ethz.ch RI Chen, Qianli/D-9878-2013; Zhang, Xiaojun/H-8539-2013; Liu, Zhi/B-3642-2009; BRAUN, Artur/A-1154-2009 OI Liu, Zhi/0000-0002-8973-6561; BRAUN, Artur/0000-0002-6992-7774 FU European Community [042095]; Seventh Framework Program Novel Materials for Energy Applications grant [227179]; Swiss National Science Foundation [200021116688, 200021-132126, 206021-121306, IZK0Z2-133944]; Swiss Federal Office of Energy [152316-101883, 153613-102809, 153476-102691]; Empa Board of Directors 7th RD Grant; Office of Science/BES, of the U.S. DoE [DE-AC02-05CH11231] FX The research leading to these results received funding from the European Community's Sixth Framework Marie Curie International Reintegration Program grant no. 042095 (HiTempEchem - X-ray and Electrochemical Studies on Solid Oxide Fuel Cells and Related Materials), Seventh Framework Program Novel Materials for Energy Applications grant no. 227179 (NanoPEC - Nanostructured Photoelectrodes for Energy Conversion), Swiss National Science Foundation grants 200021116688, 200021-132126, 206021-121306, and IZK0Z2-133944, Swiss Federal Office of Energy contracts 152316-101883, 153613-102809, and 153476-102691, and Empa Board of Directors 7th R&D Grant. The ALS is supported by the Director, Office of Science/BES, of the U.S. DoE, No. DE-AC02-05CH11231. NR 26 TC 4 Z9 4 U1 4 U2 45 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 25 PY 2011 VL 115 IS 33 BP 16411 EP 16417 DI 10.1021/jp202375h PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 809SM UT WOS:000294077000022 ER PT J AU Zhou, WP Axnanda, S White, MG Adzic, RR Hrbek, J AF Zhou, Wei-Ping Axnanda, Stephanus White, Michael G. Adzic, Radoslav R. Hrbek, Jan TI Enhancement in Ethanol Electrooxidation by SnOx Nanoislands Grown on Pt(111): Effect of Metal Oxide-Metal Interface Sites SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID GAS SHIFT REACTION; SURFACE ALLOYS; CARBON-MONOXIDE; FORMIC-ACID; ACETIC-ACID; FUEL-CELLS; OXIDATION; METHANOL; PLATINUM; CATALYSTS AB An integrated surface science and electrochemistry approach has been used to prepare and characterize SnOx/Pt(111) model catalysts and evaluate their electrochemical activity for the ethanol oxidation reaction (EOR). Nanoislands of SnOx are deposited onto the Pt(111) by reactive layer assisted deposition in which Sn metal is vapor deposited onto a Pt(111) surface precovered by NO2. X-ray photoelectron spectroscopy (XPS) shows that the SnOx islands are highly reduced with Sn2+ being the dominant chemical species. After exposing the SnOx/Pt(111) surface to H2O or an electrolyte solution, XPS provides evidence for a significant amount of H2O/OH adsorbed on the reduced SnOx surfaces. Electrochemical testing reveals that the catalytic performance of Pt(111) toward ethanol electrooxidation is significantly enhanced with SnOx islands added onto the surface. The enhanced EOR activity is tentatively attributed to the efficient removal of COads-like poisoning species at Pt sites by oxygen-containing species that are readily formed on the SnOx nanoislands. Moreover, the strong dependence of the EOR activity on SnOx coverage provides experimental evidence for the importance of SnOx-Pt interface sites in the EOR. C1 [Zhou, Wei-Ping; Axnanda, Stephanus; White, Michael G.; Adzic, Radoslav R.; Hrbek, Jan] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [White, Michael G.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11974 USA. RP Zhou, WP (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM wpzhou@bnl.gov RI Axnanda, Stephanus/G-9236-2011; zhou, weiping/C-6832-2012; Hrbek, Jan/I-1020-2013 OI zhou, weiping/0000-0002-8058-7280; FU U.S. Department of Energy, Divisions of Chemical and Material Sciences [DE-AC02-98CH10886]; Brookhaven National Laboratory FX This work was supported in part by the U.S. Department of Energy, Divisions of Chemical and Material Sciences, under contract no. DE-AC02-98CH10886. W.P.Z. and S.A. are thankful for the financial support from the LDRD program, Brookhaven National Laboratory. NR 48 TC 44 Z9 45 U1 7 U2 61 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 25 PY 2011 VL 115 IS 33 BP 16467 EP 16473 DI 10.1021/jp203770x PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 809SM UT WOS:000294077000029 ER PT J AU Shi, Z Liu, HS Lee, K Dy, E Chlistunoff, J Blair, M Zelenay, P Zhang, JJ Liu, ZS AF Shi, Zheng Liu, Hansan Lee, Kunchan Dy, Eben Chlistunoff, Jerzy Blair, Michael Zelenay, Piotr Zhang, Jiujun Liu, Zhong-Sheng TI Theoretical Study of Possible Active Site Structures in Cobalt- Polypyrrole Catalysts for Oxygen Reduction Reaction SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID EFFECTIVE CORE POTENTIALS; FE-BASED CATALYSTS; PEM FUEL-CELLS; DENSITY-FUNCTIONAL THEORY; O-2 REDUCTION; MOLECULAR CALCULATIONS; ELECTROCATALYTIC ACTIVITY; POLYATOMIC-MOLECULES; CARBON SUPPORTS; HEAT-TREATMENT AB The active site structure of nonprecious group metal catalyst is a puzzle which inhibits innovative synthetic route design and impedes breakthroughs. In an effort to understand the origin of the catalytic activity of Co-PPy composites, we employed density functional theory (DFT) and experimental measurements to investigate the structure and energy of possible catalytic sites and the corresponding reaction pathways for the oxygen reduction reaction (ORR). Four different structures of the active site are examined, including two previously postulated in the literature. In order to determine the probability of their existence, the stability of each structure is evaluated. The corresponding Co(III)/Co(II) redox potentials are calculated and, based on the obtained data, the involvement of either Co(III) or Co(II) in the ORR under fuel cell-relevant conditions postulated. Possible configurations of oxygen adsorption on the active centers are also examined, including the end-on and side-on cases. The possible reaction pathways and reaction products generated at the various active centers are evaluated based on Yeager's concept correlating ORR products with the configuration of oxygen adsorption. The catalytic activity is found to be significantly different for the various sites and depends strongly on the electrode potential. The computational data are critically compared with experimental spectroscopic (EXAFS and FTIR) and electrochemical data (CV, RDE, and RRDE). The insights into the active structures and their associated catalytic activity as well as selectivity for four-electron oxygen reduction are expected to provide guidance for further catalyst optimization. C1 [Shi, Zheng; Liu, Hansan; Lee, Kunchan; Dy, Eben; Zhang, Jiujun; Liu, Zhong-Sheng] NRC Inst Fuel Cell Innovat, Vancouver, BC, Canada. [Chlistunoff, Jerzy; Blair, Michael; Zelenay, Piotr] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Shi, Z (reprint author), NRC Inst Fuel Cell Innovat, 4250 Wesbrook Mall, Vancouver, BC, Canada. EM zheng.shi@nrc.gc.ca OI Zhang, Jiujun/0000-0003-1338-8887 FU National Research Council Canada; Institute for Fuel Cell Innovation, Energy Efficiency and Renewable Energy; Office of the U.S. DOE; Los Alamos National Laboratory; U.S. Department of Energy (DOE), Office of Basic Energy Sciences (OBES), Division of Materials Sciences and Engineering FX The authors would like to acknowledge financial support for this work from the National Research Council Canada Institute for Fuel Cell Innovation, Energy Efficiency and Renewable Energy Office of the U.S. DOE through Fuel Cell Technologies Program, and from Los Alamos National Laboratory through Laboratory-Directed Research and Development program (LDRD). M.W.B. would like to acknowledge the U.S. Department of Energy (DOE), Office of Basic Energy Sciences (OBES), Division of Materials Sciences and Engineering for support. NR 60 TC 44 Z9 45 U1 7 U2 81 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 25 PY 2011 VL 115 IS 33 BP 16672 EP 16680 DI 10.1021/jp2027719 PG 9 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 809SM UT WOS:000294077000055 ER PT J AU Mason, TH Liu, XF Hong, J Graetz, J Majzoub, EH AF Mason, Tim H. Liu, Xiangfeng Hong, J. Graetz, J. Majzoub, E. H. TI First-Principles Study of Novel Conversion Reactions for High-Capacity Li-Ion Battery Anodes in the Li-Mg-B-N-H System SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; HYDROGEN STORAGE-SYSTEM; AUGMENTED-WAVE METHOD; BASIS-SET; METALS; LIBH4 AB Anodes for Li-ion batteries are primarily carbon-based due to their low cost and long cycle life. However, improvements to the Li capacity of carbon anodes, LiC(6) in particular, are necessary to obtain a larger energy density. State-of-the-art light-metal hydrides for hydrogen storage applications often contain Li and involve reactions requiring Li transport, and light-metal ionic hydrides are candidates for novel conversion materials. Given a set of known solid-state and gas-phase reactants, we have determined the phase diagram in the Li-Mg-B-N-H system in the grand canonical ensemble, as a function of lithium chemical potential. We present computational results for several new conversion reactions with capacities between 2400 and 4000 mAh g(-1) that are thermodynamically favorable and that do not involve gas evolution. We provide experimental evidence for the reaction pathway on delithiation for the compound Li(4)BN(3)H(10). While the predicted reactions involve multiple steps, the maximum volume increase for these materials on lithium insertion is significantly smaller than that for Si. C1 [Mason, Tim H.; Liu, Xiangfeng; Majzoub, E. H.] Univ Missouri, Ctr Neurosci, St Louis, MO 63121 USA. [Mason, Tim H.; Liu, Xiangfeng; Majzoub, E. H.] Univ Missouri, Dept Phys & Astron, St Louis, MO 63121 USA. [Hong, J.; Graetz, J.] Brookhaven Natl Labs, Upton, NY 11973 USA. RP Majzoub, EH (reprint author), Univ Missouri, Ctr Neurosci, St Louis, MO 63121 USA. EM majzoube@umsl.edu FU Boeing Company; NASA/Missouri Space Grant consortium FX The authors would like to thank the Boeing Company for sponsoring tuition for this research (T.H.M) and the NASA/Missouri Space Grant consortium for a graduate fellowship. NR 24 TC 15 Z9 17 U1 5 U2 50 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 25 PY 2011 VL 115 IS 33 BP 16681 EP 16687 DI 10.1021/jp203056n PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 809SM UT WOS:000294077000056 ER PT J AU Chopra, IS Chaudhuri, S Veyan, JF Graetz, J Chabal, YJ AF Chopra, I. S. Chaudhuri, S. Veyan, J. -F. Graetz, J. Chabal, Y. J. TI Effect of Titanium Doping of Al(111) Surfaces on Alane Formation, Mobility, and Desorption SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID REVERSIBLE HYDROGEN STORAGE; INFRARED-ABSORPTION SPECTROSCOPY; SODIUM ALUMINUM-HYDRIDE; TI-DOPED NAALH4; SILICON SURFACES; VIBRATIONAL SPECTROSCOPY; SOLID HYDROGEN; ADSORPTION; KINETICS; 1ST-PRINCIPLES AB Alanes are critical intermediates in hydrogen storage reactions for mass transport during the formation of complex metal hydrides. Titanium has been shown to promote hydrogen desorption and hydrogenation, but its role as a catalyst is not clear. Combining surface infrared (IR) spectroscopy and density functional theory (DFT), the role of Ti is explored during the interaction of atomic hydrogen with Ti-doped Al(111) surfaces. Titanium is found to reduce the formation of large alanes, due to a decrease of hydrogen mobility and to trapping of small alanes on Ti sites, thus hindering oligomerization. For high doping levels (similar to 0.27 ML Ti) on Al(111), only chemisorbed AlH3 is observed on Ti sites, with no evidence for large alanes. Titanium also dramatically lowers the desorption temperature of large alanes from 290 to 190 K, due to a more restricted translational motion of these alanes. C1 [Chopra, I. S.; Veyan, J. -F.; Chabal, Y. J.] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA. [Chaudhuri, S.] Washington State Univ, ISP Appl Sci Lab, Spokane, WA 99210 USA. [Graetz, J.] Brookhaven Natl Labs, Sustainable Energy Technol Dept, Upton, NY 11973 USA. RP Chopra, IS (reprint author), Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA. RI Veyan, Jean-Francois/C-7823-2012; Chabal, Yves/A-5998-2011 OI Chabal, Yves/0000-0002-6435-0347 FU Division of Chemical Sciences, Office of Basic Energy Sciences [DE-FG02-08ER46491]; Office of Naval Research [N00014-04-1-0688, N00014-06-1-0315] FX The authors are grateful to Prof. Wiley Kirk for performing the molecular hydrogen flux calculations and to D. Stimson for technical support. We gratefully acknowledge useful discussions with Jim Muckerman and Altaf Karim at Brookhaven National Laboratories. This work was fully supported by Division of Chemical Sciences, Office of Basic Energy Sciences (DE-FG02-08ER46491). S.C. acknowledges the Office of Naval Research (N00014-04-1-0688 and N00014-06-1-0315). NR 60 TC 7 Z9 7 U1 2 U2 24 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 25 PY 2011 VL 115 IS 33 BP 16701 EP 16710 DI 10.1021/jp203842r PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 809SM UT WOS:000294077000059 ER PT J AU Csiszar, G Misra, A Ungar, T AF Csiszar, Gabor Misra, Amit Ungar, Tamas TI Burgers vector types and the dislocation structures in sputter-deposited Cu-Nb multilayers SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING LA English DT Article DE Dislocations; Burgers vectors; Multilayers; Line profile analysis ID LINE-PROFILE ANALYSIS; PLASTICALLY DEFORMED-CRYSTALS; NANOSCALE CU/NB MULTILAYERS; X-RAY; METALLIC MULTILAYERS; MISFIT DISLOCATIONS; STRAIN; FILMS; MICROSTRUCTURE; POLYCRYSTALS AB The dislocation density and the Burgers vector population are determined within the Cu and Nb layers in highly textured sputter-deposited Cu-Nb multilayers by X-ray line profile analysis. The measurements are conducted with films on and off the substrates and by orienting the films in the Eulerian cradle for acquiring the h k l reflections corresponding to planes of the major texture component. The analysis reveals a nearly constant total dislocation density in the Cu layers in all the samples measured where the layer thickness varies from 20 nm to 75 nm, whereas in the Nb layers the dislocation density decreases slightly with increasing layer thickness. The overwhelming majority of the prevailing Burgers vectors of dislocations are oriented parallel to the interface planes of the multilayers. (C) 2011 Elsevier B.V. All rights reserved. C1 [Csiszar, Gabor; Ungar, Tamas] Eotvos Lorand Univ, Dept Mat Phys, H-1117 Budapest, Hungary. [Misra, Amit] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Ungar, T (reprint author), Eotvos Lorand Univ, Dept Mat Phys, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary. EM ungar@ludens.elte.hu RI Misra, Amit/H-1087-2012 FU LANL from the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; Hungarian National Science Foundation, OTKA [71594, 67692]; European Union; European Social Fund [TAMOP 4.2.1./B-09/1/KMR-2010-0003] FX AM acknowledges support at LANL from the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. The assistance of J.K. Baldwin with sputter deposition is acknowledged. TU is grateful to the Hungarian National Science Foundation, OTKA #71594, #67692 for supporting this work. The European Union and European Social Fund have provided financial support to this project under grant agreement No. TAMOP 4.2.1./B-09/1/KMR-2010-0003. NR 44 TC 9 Z9 9 U1 0 U2 29 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0921-5093 J9 MAT SCI ENG A-STRUCT JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process. PD AUG 25 PY 2011 VL 528 IS 22-23 BP 6887 EP 6895 DI 10.1016/j.msea.2011.05.016 PG 9 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA 800LW UT WOS:000293363100029 ER PT J AU Gront, D Kulp, DW Vernon, RM Strauss, CEM Baker, D AF Gront, Dominik Kulp, Daniel W. Vernon, Robert M. Strauss, Charlie E. M. Baker, David TI Generalized Fragment Picking in Rosetta: Design, Protocols and Applications SO PLOS ONE LA English DT Article ID PROTEIN-STRUCTURE PREDICTION AB The Rosetta de novo structure prediction and loop modeling protocols begin with coarse grained Monte Carlo searches in which the moves are based on short fragments extracted from a database of known structures. Here we describe a new object oriented program for picking fragments that greatly extends the functionality of the previous program (nnmake) and opens the door for new approaches to structure modeling. We provide a detailed description of the code design and architecture, highlighting its modularity, and new features such as extensibility, total control over the fragment picking workflow and scoring system customization. We demonstrate that the program provides at least as good building blocks for ab-initio structure prediction as the previous program, and provide examples of the wide range of applications that are now accessible. C1 [Gront, Dominik] Univ Warsaw, Fac Chem, Warsaw, Poland. [Kulp, Daniel W.; Strauss, Charlie E. M.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA. [Vernon, Robert M.] Hosp Sick Children, Program Mol Struct & Funct, Toronto, ON M5G 1X8, Canada. [Baker, David] Univ Washington, Howard Hughes Med Inst, Dept Biochem, Seattle, WA 98195 USA. RP Gront, D (reprint author), Univ Warsaw, Fac Chem, Warsaw, Poland. EM dgront@chem.uw.edu.pl FU Marie Curie fellowship [221081] FX DG was supported by a Marie Curie fellowship (FP7-people-IOF), project no. 221081. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 11 TC 42 Z9 45 U1 1 U2 8 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 24 PY 2011 VL 6 IS 8 AR e23294 DI 10.1371/journal.pone.0023294 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 832TW UT WOS:000295832000011 PM 21887241 ER PT J AU Pattanayek, R Williams, DR Rossi, G Weigand, S Mori, T Johnson, CH Stewart, PL Egli, M AF Pattanayek, Rekha Williams, Dewight R. Rossi, Gian Weigand, Steven Mori, Tetsuya Johnson, Carl H. Stewart, Phoebe L. Egli, Martin TI Combined SAXS/EM Based Models of the S. elongatus Post-Translational Circadian Oscillator and its Interactions with the Output His-Kinase SasA SO PLOS ONE LA English DT Article ID CLOCK PROTEIN KAIA; SMALL-ANGLE SCATTERING; SYNECHOCOCCUS-ELONGATUS; CRYSTAL-STRUCTURE; HISTIDINE KINASE; IN-VITRO; BIOLOGICAL MACROMOLECULES; TERMINAL DOMAIN; ATPASE ACTIVITY; PHOSPHORYLATION AB The circadian clock in the cyanobacterium Synechococcus elongatus is composed of a post-translational oscillator (PTO) that can be reconstituted in vitro from three different proteins in the presence of ATP and a transcription-translation feedback loop (TTFL). The homo-hexameric KaiC kinase, phosphatase and ATPase alternates between hypo- and hyper-phosphorylated states over the 24-h cycle, with KaiA enhancing phosphorylation, and KaiB antagonizing KaiA and promoting KaiC subunit exchange. SasA is a His kinase that relays output signals from the PTO formed by the three Kai proteins to the TTFL. Although the crystal structures for all three Kai proteins are known, atomic resolution structures of Kai and Kai/SasA protein complexes have remained elusive. Here, we present models of the KaiAC and KaiBC complexes derived from solution small angle X-ray scattering (SAXS), which are consistent with previous EM based models. We also present a combined SAXS/EM model of the KaiC/SasA complex, which has two N-terminal SasA sensory domains occupying positions on the C-terminal KaiC ring reminiscent of the orientations adopted by KaiB dimers. Using EM we demonstrate that KaiB and SasA compete for similar binding sites on KaiC. We also propose an EM based model of the ternary KaiABC complex that is consistent with the sequestering of KaiA by KaiB on KaiC during the PTO dephosphorylation phase. This work provides the first 3D-catalogue of protein-protein interactions in the KaiABC PTO and the output pathway mediated by SasA. C1 [Pattanayek, Rekha; Rossi, Gian; Egli, Martin] Vanderbilt Univ, Sch Med, Dept Biochem, Nashville, TN 37212 USA. [Williams, Dewight R.; Johnson, Carl H.; Stewart, Phoebe L.] Vanderbilt Univ, Sch Med, Dept Mol Physiol & Biophys, Nashville, TN 37212 USA. [Weigand, Steven] Northwestern Univ, DND CAT Synchrotron Res Ctr, Adv Photon Source, Argonne Natl Lab, Argonne, IL USA. [Mori, Tetsuya; Johnson, Carl H.] Vanderbilt Univ, Dept Biol Sci, Nashville, TN 37212 USA. RP Pattanayek, R (reprint author), Vanderbilt Univ, Sch Med, Dept Biochem, Nashville, TN 37212 USA. EM martin.egli@vanderbilt.edu RI Johnson, Carl/I-4655-2014 FU US National Institutes of Health [R01 GM73845, R01 GM81646, R01 GM67152, F32 GM71276]; E. I. DuPont de Nemours Co.; Dow Chemical Company; National Science Foundation; State of Illinois; U.S. Department of Energy, Basic Energy Sciences, Office of Science [W-31-109-Eng-38] FX Funding by the US National Institutes of Health (http://www.nih.gov/) for this research is gratefully acknowledged: R01 GM73845 to ME, R01 GM81646 to PLS, R01 GM67152 to CHJ and F32 GM71276 to DRW. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; We would like to thank Dr. Yao Xu for providing constructs, reagents and rhythm data, Dr. Ximing Qin for providing purified proteins, Prof. Andy LiWang, University of California at Merced, for the N-KaiA plasmid, and Dr. David Friedman of the Vanderbilt Proteomics Facility for help with mass spectrometric characterization of all proteins. We also thank Drs. Michal Hammel and John Tainer for granting us access to the SIBYLS software suite. Dr. P. Thiyagarajan provided much appreciated advice on the use of SAXS for the study of Kai clock proteins and their complexes during the early stages of the project. The DuPont-Northwestern-Dow Collaborative Access Team (DND-CAT, sector 5) Synchrotron Research Center at the Advanced Photon Source (APS, Argonne, IL) is supported by E. I. DuPont de Nemours & Co., The Dow Chemical Company, the National Science Foundation, and the State of Illinois. Vanderbilt University is a member institution of Life Sciences Collaborative Access Team (LS-CAT, sector 21) at the APS. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Basic Energy Sciences, Office of Science, under Contract No. W-31-109-Eng-38. NR 62 TC 23 Z9 24 U1 1 U2 7 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 24 PY 2011 VL 6 IS 8 AR e23697 DI 10.1371/journal.pone.0023697 PG 19 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 832TW UT WOS:000295832000048 PM 21887298 ER PT J AU Wang, J Lu, H Kamat, R Pingali, SV Urban, VS Cheng, JJ Lin, Y AF Wang, Jing Lu, Hua Kamat, Ranjan Pingali, Sai V. Urban, Volker S. Cheng, Jianjun Lin, Yao TI Supramolecular Polymerization from Polypeptide-Grafted Comb Polymers SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID POLY(L-GLUTAMIC ACID); AMINO-ACIDS; AGGREGATION; COPOLYMERS; DYNAMICS; MODEL; PH AB The helical and tubular structures self-assembled from proteins have inspired scientists to design synthetic building blocks that can be "polymerized" into supramolecular polymers through coordinated noncovalent interactions. However, cooperative supramolecular polymerization from large, synthetic macromolecules remains a challenge because of the difficulty of controlling the structure and interactions of macromolecular monomers. Herein we report the synthesis of polypeptide-grafted comb polymers and the use of their tunable secondary interactions in solution to achieve controlled supramolecular polymerization. The resulting tubular supramolecular structures, with external diameters of hundreds of nanometers and lengths of tens of micrometers, are stable and resemble to some extent biological superstructures assembled from proteins. This study shows that highly specific intermolecular interactions between macromolecular monomers can enable the cooperative growth of supramolecular polymers. The general applicability of this strategy was demonstrated by carrying out supramolecular polymerization from gold nanoparticles grafted with the same polypeptides on the surface. C1 [Wang, Jing; Kamat, Ranjan; Lin, Yao] Univ Connecticut, Inst Mat Sci, Polymer Program, Storrs, CT 06269 USA. [Lu, Hua; Cheng, Jianjun] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA. [Pingali, Sai V.; Urban, Volker S.] Oak Ridge Natl Lab, Ctr Struct Mol Biol, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Lin, Yao] Univ Connecticut, Dept Chem, Storrs, CT 06269 USA. RP Lin, Y (reprint author), Univ Connecticut, Inst Mat Sci, Polymer Program, Storrs, CT 06269 USA. EM jianjunc@illinois.edu; ylin@ims.uconn.edu RI Lin, Yao/E-5527-2011; Lu, Hua/E-4592-2011; Urban, Volker/N-5361-2015; OI Lin, Yao/0000-0001-5227-2663; Lu, Hua/0000-0003-2180-3091; Urban, Volker/0000-0002-7962-3408; Pingali, Sai Venkatesh/0000-0001-7961-4176; Wang, Jing/0000-0003-4186-5388 FU Faculty Startup Fund; Research Foundation at the University of Connecticut; NSF [CHE-0809420]; DOE BES FX Y.L. acknowledges support from the Faculty Startup Fund and the Research Foundation at the University of Connecticut. J.C. acknowledges support from NSF (CHE-0809420). V.U. acknowledges support from DOE BES. We thank Prof. C. Vijaya Kumar for helpful inputs to this research. NR 36 TC 33 Z9 34 U1 3 U2 66 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 24 PY 2011 VL 133 IS 33 BP 12906 EP 12909 DI 10.1021/ja202268t PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 816IG UT WOS:000294591300004 PM 21761879 ER PT J AU Sivasankar, N Weare, WW Frei, H AF Sivasankar, Narayanappa Weare, Walter W. Frei, Heinz TI Direct Observation of a Hydroperoxide Surface Intermediate upon Visible Light-Driven Water Oxidation at an Ir Oxide Nanocluster Catalyst by Rapid-Scan FT-IR Spectroscopy SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID IN-SITU FTIR; MESOPOROUS SILICA; OXYGEN EVOLUTION; IRIDIUM OXIDE; CLUSTERS; TIO2; COMPLEXES; SYSTEM; STATE AB A surface hydroperoxide intermediate has been detected upon oxidation of water at an Ir oxide nanocluster catalyst system under pulsed excitation of a [Ru(bpy)(3)](2+) visible light sensitizer by recording of the OO vibrational mode at 830 cm(-1). Rapid-scan FT-IR spectroscopy of colloidal H2O, D2O, and (D2O)-O-18 solutions in the attenuated total reflection mode allowed spectral assignment of IrOOH on the basis of an observed D shift of 30 cm(-1), and O-18 shifts of 24 cm(-1) ((OO)-O-16-O-18) and 46 cm(-1) ((OO)-O-18-O-18). The laser pulse response of the infrared band is consistent with the kinetic relevancy of the intermediate. This is the first observation of a surface intermediate of oxygen evolution at an Ir oxide multielectron catalyst. C1 [Sivasankar, Narayanappa; Weare, Walter W.; Frei, Heinz] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Frei, H (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. EM HMFrei@lbl.gov OI Weare, Walter/0000-0001-5794-9418 FU Office of Science, Office of Basic Energy Sciences, Division of Chemical, Geological and Biosciences of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Division of Chemical, Geological and Biosciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The authors thank Andreas Bachmeier for conducting the time-resolved optical measurements and Dr. Ryuhei Nakamura for preliminary experiments with the setup used in this work. NR 37 TC 43 Z9 43 U1 2 U2 83 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 24 PY 2011 VL 133 IS 33 BP 12976 EP 12979 DI 10.1021/ja205300a PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 816IG UT WOS:000294591300022 PM 21770440 ER PT J AU Walsh, A Da Silva, JLF Wei, SH AF Walsh, Aron Da Silva, Juarez L. F. Wei, Su-Huai TI Multi-component transparent conducting oxides: progress in materials modelling SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Review ID DENSITY-FUNCTIONAL THEORY; TOTAL-ENERGY CALCULATIONS; COMPOUNDS INMO3(ZNO)(M) M; METAL-ORGANIC FRAMEWORK; HOMOLOGOUS COMPOUNDS; THIN-FILMS; ZINC-OXIDE; CRYSTAL-STRUCTURE; INDIUM OXIDE; ELECTRON-GAS AB Transparent conducting oxides (TCOs) play an essential role in modern optoelectronic devices through their combination of electrical conductivity and optical transparency. We review recent progress in our understanding of multi-component TCOs formed from solid solutions of ZnO, In2O3, Ga2O3 and Al2O3, with a particular emphasis on the contributions of materials modelling, primarily based on density functional theory. In particular, we highlight three major results from our work: (i) the fundamental principles governing the crystal structures of multi-component oxide structures including (In2O3)(ZnO)(n) and (In2O3)(m)(Ga2O3)(l) (ZnO)(n); (ii) the relationship between elemental composition and optical and electrical behaviour, including valence band alignments; (iii) the high performance of amorphous oxide semiconductors. On the basis of these advances, the challenge of the rational design of novel electroceramic materials is discussed. C1 [Walsh, Aron] UCL, Dept Chem, London WC1H 0AJ, England. [Da Silva, Juarez L. F.] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil. [Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Walsh, A (reprint author), UCL, Dept Chem, 20 Gordon St, London WC1H 0AJ, England. RI Sao Carlos Institute of Physics, IFSC/USP/M-2664-2016; Walsh, Aron/A-7843-2008; Da Silva, Juarez L. F./D-1779-2011 OI Walsh, Aron/0000-0001-5460-7033; Da Silva, Juarez L. F./0000-0003-0645-8760 FU European Union; EPSRC [EP/F067496]; US Department of Energy (DOE) [DE-AC36-08GO28308, DE-AC02-05CH11231] FX A W would like to acknowledge funding from a Marie-Curie Intra-European Fellowship from the European Union under the Seventh Framework Programme, as well as membership of the UK's HPC Materials Chemistry Consortium, which is funded by EPSRC (Grant No. EP/F067496). JLFDS thanks the Sao Paulo Science Foundation (FAPESP). S-H W is supported by the US Department of Energy (DOE) under Contract No. DE-AC36-08GO28308; computing resources of the National Energy Research Scientific Computing Center were employed, which is supported by DOE under Contract No. DE-AC02-05CH11231. NR 153 TC 38 Z9 38 U1 4 U2 93 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 EI 1361-648X J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD AUG 24 PY 2011 VL 23 IS 33 AR 334210 DI 10.1088/0953-8984/23/33/334210 PG 12 WC Physics, Condensed Matter SC Physics GA 809ML UT WOS:000294060600012 PM 21813942 ER PT J AU Benseman, TM Koshelev, AE Gray, KE Kwok, WK Welp, U Kadowaki, K Tachiki, M Yamamoto, T AF Benseman, T. M. Koshelev, A. E. Gray, K. E. Kwok, W-K Welp, U. Kadowaki, K. Tachiki, M. Yamamoto, T. TI Tunable terahertz emission from Bi2Sr2CaCu2O8+delta mesa devices SO PHYSICAL REVIEW B LA English DT Article ID JOSEPHSON-JUNCTIONS; SUPERCONDUCTORS; CRYSTALS AB We have measured coherent terahertz emission spectra from Bi2Sr2CaCu2O8+delta mesa devices as a function of temperature and mesa bias voltage. The emission frequency is found to be tunable by up to 12% by varying the temperature and bias voltage. We attribute the appearance of tunability to asymmetric boundaries at the top and bottom and the nonrectangular cross section of the mesas. This interpretation is consistent with numerical simulations of the dynamics of intrinsic Josephson junctions in the mesa. Easily tunable emission frequency may have important implications for the design of terahertz devices based on stacked intrinsic Josephson junctions. C1 [Benseman, T. M.; Koshelev, A. E.; Gray, K. E.; Kwok, W-K; Welp, U.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Kadowaki, K.; Tachiki, M.] Univ Tsukuba, Inst Mat Sci, Ibaraki 3058753, Japan. [Yamamoto, T.] Japan Atom Energy Agcy, Semicond Anal & Radiat Effects Grp, Takasaki, Gumma 3701292, Japan. RP Benseman, TM (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM tbenseman@anl.gov RI Koshelev, Alexei/K-3971-2013 OI Koshelev, Alexei/0000-0002-1167-5906 FU US Department of Energy, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This research was funded by the US Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. We gratefully acknowledge R. Divan and A. Imre of the Argonne National Laboratory Center for Nanoscale Materials for assistance with lithography. NR 33 TC 71 Z9 71 U1 0 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 6 AR 064523 DI 10.1103/PhysRevB.84.064523 PG 6 WC Physics, Condensed Matter SC Physics GA 811PW UT WOS:000294226000014 ER PT J AU Di, ZF Bai, XM Wei, QM Won, J Hoagland, RG Wang, YQ Misra, A Uberuaga, BP Nastasi, M AF Di, Zengfeng Bai, Xian-Ming Wei, Qiangmin Won, Jonghan Hoagland, Richard G. Wang, Yongqiang Misra, Amit Uberuaga, Blas P. Nastasi, Michael TI Tunable helium bubble superlattice ordered by screw dislocation network SO PHYSICAL REVIEW B LA English DT Article ID MEV PROTON IRRADIATION; GRAIN-BOUNDARIES; RADIATION-DAMAGE; NUCLEATION; ALUMINUM AB Helium bubble nucleation at low-angle twist boundaries in gold has been investigated. It is found that the helium bubbles preferentially nucleate at screw dislocation nodal points and result in helium bubble superlattice formation, which is completely isomorphic with the screw dislocation network along the twist-grain boundary. Molecular statics calculations reveal that defect formation/solution energies along the screw dislocations, especially at the nodal points, are lower than their bulk counterparts. It is believed that this driving force is responsible for the helium bubble superlattice formation. Our study suggests that grain boundary engineering via adjustable twist angles in parallel boundaries to form tunable 3D bubble superlattices could afford a very promising approach for design of radiation tolerant materials. C1 [Di, Zengfeng; Wei, Qiangmin; Misra, Amit; Nastasi, Michael] Los Alamos Natl Lab, Mat Phys & Applicat Div, MPA CINT, Los Alamos, NM 87545 USA. [Bai, Xian-Ming; Won, Jonghan; Hoagland, Richard G.; Wang, Yongqiang; Uberuaga, Blas P.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Di, Zengfeng] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China. RP Di, ZF (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, MPA CINT, POB 1663, Los Alamos, NM 87545 USA. EM dizengfeng@hotmail.com RI Hoagland, Richard/G-9821-2012; Misra, Amit/H-1087-2012; Bai, Xianming/E-2376-2017; OI Bai, Xianming/0000-0002-4609-6576; won, Jonghan/0000-0002-7612-1322 FU Los Alamos National Laboratory [20090061DR]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [2008LANL1026] FX The experimental portion of this work was sponsored by the Laboratory Directed Research and Development (LDRD) program at Los Alamos National Laboratory under Project No. 20090061DR. The modeling work was supported as part of the Center for Materials at Irradiation and Mechanical Extremes, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number 2008LANL1026. NR 20 TC 25 Z9 25 U1 2 U2 38 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 5 AR 052101 DI 10.1103/PhysRevB.84.052101 PG 5 WC Physics, Condensed Matter SC Physics GA 811PD UT WOS:000294223700001 ER PT J AU Fishman, RS AF Fishman, Randy S. TI Quantum spin fluctuations and ellipticity for a triangular-lattice antiferromagnet SO PHYSICAL REVIEW B LA English DT Article AB The effects of quantum spin fluctuations are investigated for the three-sublattice spin configurations of a geometrically frustrated triangular-lattice antiferromagnet in a magnetic field with easy-axis anisotropy. Because quantum fluctuations reduce the tilt of the spins toward the easy axis, the predicted distortion of the noncollinear state at zero field is too small to explain the ellipticity reported for the multiferroic state of CuCrO(2). Due to the change in spin angles, quantum fluctuations shift the boundaries between the collinear and noncollinear phases and open a gap in field between the two types of noncollinear phases. C1 Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Fishman, RS (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RI Fishman, Randy/C-8639-2013 FU US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division FX I acknowledge helpful discussions with Sasha Chernyshev, Takeshi Egami, Bruce Gaulin, Jason Haraldsen, Matthias Frontzek, and Satoshi Okamoto. This research was sponsored by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. NR 22 TC 5 Z9 5 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 5 AR 052405 DI 10.1103/PhysRevB.84.052405 PG 4 WC Physics, Condensed Matter SC Physics GA 811PD UT WOS:000294223700002 ER PT J AU Harriger, LW Luo, HQ Liu, MS Frost, C Hu, JP Norman, MR Dai, PC AF Harriger, L. W. Luo, H. Q. Liu, M. S. Frost, C. Hu, J. P. Norman, M. R. Dai, Pengcheng TI Nematic spin fluid in the tetragonal phase of BaFe2As2 SO PHYSICAL REVIEW B LA English DT Article ID DETWINNED BA(FE1-XCOX)(2)AS-2; IRON-PNICTIDES; SUPERCONDUCTIVITY; ANISOTROPY; SYMMETRY; DYNAMICS AB We use inelastic neutron scattering to study spin waves below and above T-N in iron-arsenide BaFe2As2. In the low-temperature orthorhombic phase, we find highly anisotropic spin waves with a large damping along the antiferromagnetic a-axis direction. On warming the system to the paramagnetic tetragonal phase, the low-energy spin waves evolve into quasi-elastic excitations, while the anisotropic spin excitations near the zone boundary persist. These results strongly suggest the presence of a spin nematic fluid in the tetragonal phase of BaFe2As2, which may cause the electronic and orbital anisotropy observed in these materials. C1 [Harriger, L. W.; Liu, M. S.; Dai, Pengcheng] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Luo, H. Q.; Hu, J. P.; Dai, Pengcheng] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. [Frost, C.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England. [Hu, J. P.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. [Norman, M. R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Dai, Pengcheng] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. RP Harriger, LW (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. EM pdai@utk.edu RI Dai, Pengcheng /C-9171-2012; Liu, Mengshu/D-2764-2012; Luo, Huiqian/F-4049-2012; Norman, Michael/C-3644-2013; Hu, Jiangping/A-9154-2010; hu, jiangping /C-3320-2014 OI Dai, Pengcheng /0000-0002-6088-3170; Hu, Jiangping/0000-0003-4480-1734; FU US [NSF-OISE-0968226, NSF-DMR-1063866]; DOE BES [DE-FG-02-05ER46202]; US DOE Division of Scientific User Facilities; US DOE [DE-AC02-06CH11357]; Chinese Academy of Sciences; 973 program [2010CB833102, 2010CB923002] FX We thank E. Kaneshita and T. Tohyama for helpful discussions and providing numerical calculations for Fig. 12. We are also grateful to T.G. Perring for his help in the experiments and data analysis. The neutron scattering work at UT is supported by the US NSF-OISE-0968226 and NSF-DMR-1063866. The single crystal growth efforts at UT are supported by DOE BES DE-FG-02-05ER46202. This work is also supported by the US DOE Division of Scientific User Facilities. Work at ANL is supported by the US DOE under Contract No. DE-AC02-06CH11357. The single crystal growth and neutron scattering work at IOP is supported by the Chinese Academy of Sciences and by 973 program (2010CB833102 and 2010CB923002). NR 34 TC 127 Z9 128 U1 0 U2 25 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 5 AR 054544 DI 10.1103/PhysRevB.84.054544 PG 13 WC Physics, Condensed Matter SC Physics GA 811PD UT WOS:000294223700003 ER PT J AU Lin, JF Tse, JS Alp, EE Zhao, JY Lerche, M Sturhahn, W Xiao, YM Chow, P AF Lin, Jung-Fu Tse, John S. Alp, Esen E. Zhao, Jiyong Lerche, Michael Sturhahn, Wolfgang Xiao, Yuming Chow, Paul TI Phonon density of states of Fe2O3 across high-pressure structural and electronic transitions SO PHYSICAL REVIEW B LA English DT Article ID NUCLEAR RESONANT SCATTERING; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; AB-INITIO; PHASE; SPIN; GPA; FERROPERICLASE; SPECTROSCOPY AB High-pressure phonon density of states (PDOS) of Fe2O3 across structural and electronic transitions has been investigated by nuclear resonant inelastic x-ray scattering (NRIXS) and first-principles calculations together with synchrotron Mossbauer, x-ray diffraction, and x-ray emission spectroscopies. Drastic changes in elastic, thermodynamic, and vibrational properties of Fe2O3 occur across the Rh2O3(II)-type structural transition at 40-50 GPa, whereas the Mott insulator-metal transition occurring after the structural transition only causes nominal changes in the properties of the Fe2O3. The observed anomalous mode-softening behavior of the elastic constants is associated with the structural transition at 40-50 GPa, leading to substantial changes in the Debye-like part of the PDOS in the terahertz acoustic phonons. Our experimental and theoretical studies provide new insights into the effects of the structural and electronic transitions in the transition-metal oxide (TMO) compounds. C1 [Lin, Jung-Fu] Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA. [Tse, John S.] Univ Saskatchewan, Dept Phys & Engn Phys, Saskatoon, SK S7N 5E2, Canada. [Xiao, Yuming; Chow, Paul] Argonne Natl Lab, Adv Photon Source, HPCAT, Carnegie Inst Washington, Argonne, IL 60439 USA. [Lerche, Michael] Univ Calif Davis, McClellan Nucl Res Ctr, Mcclellan, CA 95652 USA. RP Lin, JF (reprint author), Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA. EM afu@jsg.utexas.edu RI Lin, Jung-Fu/B-4917-2011 FU US Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-AC02-06CH11357]; Energy Frontier Research in Extreme Environments (EFree) Center; NSF Earth Sciences [EAR-0838221]; Carnegie/DOE Alliance Center (CDAC); COMPRES FX We acknowledge XOR-3 and GSECARS, APS, and ANL for the use of the synchrotron and laser facilities and TACC for the computational facilities. Use of the Advanced Photon Source was supported by US Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), under contract No. DE-AC02-06CH11357. J.F.L. acknowledges financial support from Energy Frontier Research in Extreme Environments (EFree) Center, NSF Earth Sciences (EAR-0838221), and Carnegie/DOE Alliance Center (CDAC). M. L. acknowledges financial support from COMPRES. NR 34 TC 6 Z9 6 U1 1 U2 34 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 6 AR 064424 DI 10.1103/PhysRevB.84.064424 PG 7 WC Physics, Condensed Matter SC Physics GA 811PW UT WOS:000294226000007 ER PT J AU Meng, JQ Brunner, M Kim, KH Lee, HG Lee, SI Wen, JS Xu, ZJ Gu, GD Gweon, GH AF Meng, Jian-Qiao Brunner, M. Kim, K-H Lee, H-G Lee, S-I Wen, J. S. Xu, Z. J. Gu, G. D. Gweon, G-H TI Momentum-space electronic structures and charge orders of the high-temperature superconductors Ca2-xNaxCuO2Cl2 and Bi2Sr2CaCu2O8+delta SO PHYSICAL REVIEW B LA English DT Article ID UNDERDOPED BI2212; PSEUDOGAP STATE; FERMI-SURFACE; GAPS AB We study the electronic structure of Ca2-xNaxCuO2Cl2 and Bi2Sr2CaCu2O8+delta samples in a wide range of doping, using angle-resolved photoemission spectroscopy, with emphasis on the Fermi surface (FS) in the near antinodal region. The "nesting wave vector," i.e., the wave vector that connects two nearly flat pieces of the FS in the antinodal region, reveals a universal monotonic decrease in magnitude as a function of doping. Comparing our results to the charge order recently observed by scanning tunneling spectroscopy (STS), we conclude that the FS nesting and the charge order pattern seen in STS do not have a direct relationship. Therefore, the charge order likely arises due to strong-correlation physics rather than FS nesting physics. C1 [Meng, Jian-Qiao; Brunner, M.; Gweon, G-H] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA. [Kim, K-H; Lee, H-G; Lee, S-I] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea. [Wen, J. S.; Xu, Z. J.; Gu, G. D.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Gweon, GH (reprint author), Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA. EM gweon@ucsc.edu RI Wen, Jinsheng/F-4209-2010; xu, zhijun/A-3264-2013; Meng, Jianqiao/D-2667-2013; Gu, Genda/D-5410-2013 OI Wen, Jinsheng/0000-0001-5864-1466; xu, zhijun/0000-0001-7486-2015; Meng, Jianqiao/0000-0003-3168-9819; Gu, Genda/0000-0002-9886-3255 FU COR FRG; Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]; DOE [DE-AC02-98CH10886] FX G.H.G. acknowledges helpful discussions with S. A. Kivelson and D.-H. Lee. G.H.G. and J.Q.M. thank K. M. Shen for helpful discussions. The work at UCSC was supported partially by a COR FRG grant. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource (SSRL), a Directorate of SLAC National Accelerator Laboratory and an Office of Science User Facility operated for the US Department of Energy Office of Science by Stanford University. The Advanced Light Source (ALS) is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. The work at the BNL was supported by DOE under Contract No. DE-AC02-98CH10886. NR 38 TC 14 Z9 14 U1 1 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 6 AR 060513 DI 10.1103/PhysRevB.84.060513 PG 6 WC Physics, Condensed Matter SC Physics GA 811PW UT WOS:000294226000001 ER PT J AU Moll, S Sattonnay, G Thome, L Jagielski, J Decorse, C Simon, P Monnet, I Weber, WJ AF Moll, S. Sattonnay, G. Thome, L. Jagielski, J. Decorse, C. Simon, P. Monnet, I. Weber, W. J. TI Irradiation damage in Gd2Ti2O7 single crystals: Ballistic versus ionization processes SO PHYSICAL REVIEW B LA English DT Article ID HEAVY-ION IRRADIATION; SELF-RADIATION DAMAGE; TITANATE PYROCHLORE; HOST PHASES; IMMOBILIZATION; AMORPHIZATION; EVOLUTION; OXIDES; TRANSITIONS; SUBLATTICES AB The structural transformations induced in Gd2Ti2O7 single crystals irradiated at high energies (870-MeV Xe), where ionization processes (electronic stopping) dominate, and at low energies (4-MeV Au), where ballistic processes (nuclear stopping) dominate, have been studied via the combination of Rutherford backscattering spectrometry and channeling (RBS/C), Raman spectroscopy, and transmission electron microscopy (TEM) experiments. At high energy, amorphization occurs directly in individual ion tracks from the extreme electronic-energy deposition, and full amorphization results from the overlapping of these tracks as described by a direct impact model. The track diameters lie in the range 6-9 nm. At low energy, amorphization occurs via indirect processes, driven by ballistic nuclear energy deposition from the ions, that is accounted for in the framework of both direct-impact/defect-stimulated and multi-step damage accumulation models. The ion fluence for total amorphization of the irradiated layer is much higher at low energy (0.5 ion nm(-2)) than at high energy (0.05 ion nm(-2)), consistent with the nuclear stopping at low energy (5.2 keV/nm) compared to the electronic stopping at high energy (29 keV/nm). C1 [Moll, S.; Thome, L.] Univ Paris 11, Ctr Spectrometrie Nucl & Spectrometrie Masse, CNRS, IN2P3,UMR 8609, F-91405 Orsay, France. [Sattonnay, G.] Univ Paris 11, LEMHE ICMMO, UMR 8182, F-91405 Orsay, France. [Jagielski, J.] Inst Elect Mat Technol, PL-01919 Warsaw, Poland. [Jagielski, J.] Andrzej Soltan Inst Nucl Studies, PL-05400 Otwock, Poland. [Decorse, C.] Univ Paris 11, LPCES ICMMO, UMR 8182, F-91405 Orsay, France. [Simon, P.] CNRS, CEMHTI, UPR 3079, F-45071 Orleans 2, France. [Monnet, I.] CEA CNRS ENSICAEN, CIMAP GANIL, F-14070 Caen 5, France. [Weber, W. J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Weber, W. J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Moll, S (reprint author), Pacific NW Natl Lab, POB 999,MS K8-87, Richland, WA 99352 USA. EM moll@hotmail.com RI Simon, Patrick/C-1688-2008; Weber, William/A-4177-2008 OI Weber, William/0000-0002-9017-7365 FU "Groupement National de Recherche" (GNR) MATINEX; French-Polish cooperation program [01-104]; French National Agency for Research [ANR 07-BLAN-0282-01]; US Department of Energy, Office of Basic Energy Sciences FX This work was partially supported by the "Groupement National de Recherche" (GNR) MATINEX, the French-Polish cooperation program no01-104, the French National Agency for Research Grant RAMIRIS noANR 07-BLAN-0282-01, and as part of the Materials Science of Actinides EFRC, an Energy Frontier Research Center funded by the US Department of Energy, Office of Basic Energy Sciences. We would like to acknowledge the staff of the ARAMIS accelerator for their kind assistance during Au-ion irradiation and RBS/C analyses. NR 35 TC 34 Z9 34 U1 3 U2 32 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 6 AR 064115 DI 10.1103/PhysRevB.84.064115 PG 11 WC Physics, Condensed Matter SC Physics GA 811PW UT WOS:000294226000003 ER PT J AU Shoemaker, DP Seshadri, R Tachibana, M Hector, AL AF Shoemaker, Daniel P. Seshadri, Ram Tachibana, Makoto Hector, Andrew L. TI Incoherent Bi off-centering in Bi2Ti2O6O ' and Bi2Ru2O6O ': Insulator versus metal SO PHYSICAL REVIEW B LA English DT Article ID X-RAY-DIFFRACTION; OXIDE PYROCHLORES; LONE PAIRS; DISORDER; SPECTROSCOPY; NEUTRON; ALPHA; BI2O3; IONS; ICE AB In the cubic, stoichiometric oxide compounds Bi2Ti2O6O' (also written as Bi2Ti2O7) and Bi2Ru2O6O' (also written as Bi2Ru2O7) Bi3+ ions on the pyrochlore A site display a propensity to off-center. Unlike Bi2Ti2O6O', Bi2Ru2O6O' is a metal, so it is of interest to ask whether conduction electrons and/or involvement of Bi 6s states at the Fermi energy influence Bi3+ displacements. The Bi3+ off-centering in Bi2Ti2O6O' has previously been revealed to be incoherent from detailed reverse Monte Carlo analysis of total neutron scattering. Similar analysis of Bi2Ru2O6O' reveals incoherent off-centering as well, but of smaller magnitude and with distinctly different orientational preference. Analysis of the distributions of metal to oxygen distances presented suggests that Bi in both compounds is entirely Bi3+. Disorder in Bi2Ti2O6O' has the effect of stabilizing valence while simultaneously satisfying the steric constraint imposed by the presence of the lone pair of electrons. In Bi2Ru2O6O', off-centering is not required to satisfy valence and seems to be driven by the lone pair. Decreased volume of the lone pair may be a result of partial screening by conduction electrons. C1 [Shoemaker, Daniel P.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Seshadri, Ram] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. [Tachibana, Makoto] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan. [Hector, Andrew L.] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England. RP Shoemaker, DP (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM dshoemaker@anl.gov; seshadri@mrl.ucsb.edu; tachibana.makoto@nims.go.jp; a.l.hector@soton.ac.uk RI Hector, Andrew/B-8344-2009; Seshadri, Ram/C-4205-2013; TACHIBANA, Makoto/H-2794-2011 OI Hector, Andrew/0000-0002-9964-2163; Seshadri, Ram/0000-0001-5858-4027; FU DOE Office of Basic Energy Sciences [DE-AC52-06NA25396]; The UCSB-LANL Institute for Multiscale Materials Studies; National Science Foundation [DMR 0449354, DMR05-20415]; UChicago Argonne, a US DOE Office of Science Laboratory [DE-AC02-06CH11357] FX We thank Anna Llobet, Thomas Proffen, Joan Siewenie, Katharine Page, and Graham King for helpful discussions and their hospitality while D. P. S. was visiting the Lujan Center. This work utilized NPDF at the Lujan Center at the Los Alamos Neutron Science Center, funded by the DOE Office of Basic Energy Sciences and operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. Simulations were performed on the Hewlett Packard QSR cluster at the California NanoSystems Institute. The UCSB-LANL Institute for Multiscale Materials Studies, the National Science Foundation (Grant No. DMR 0449354), and the use of MRL Central Facilities, supported by the MRSEC Program of the NSF (Grant No. DMR05-20415), a member of the NSF-funded Materials Research Facilities Network (http://www.mrfn.org), are gratefully acknowledged. Work at Argonne National Laboratory is supported by UChicago Argonne, a US DOE Office of Science Laboratory, operated under Contract No. DE-AC02-06CH11357. NR 34 TC 14 Z9 14 U1 1 U2 41 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 24 PY 2011 VL 84 IS 6 AR 064117 DI 10.1103/PhysRevB.84.064117 PG 6 WC Physics, Condensed Matter SC Physics GA 811PW UT WOS:000294226000005 ER PT J AU Brida, I Pieper, SC Wiringa, RB AF Brida, I. Pieper, Steven C. Wiringa, R. B. TI Quantum Monte Carlo calculations of spectroscopic overlaps in A <= 7 nuclei SO PHYSICAL REVIEW C LA English DT Article ID LIGHT-NUCLEI; DWBA ANALYSIS; D,P REACTION; 1P SHELL; PHYSICS; STATES AB We present Green's function Monte Carlo calculations of spectroscopic overlaps for A <= 7 nuclei. The realistic Argonne v(18) two-nucleon and Illinois-7 three-nucleon interactions are used to generate the nuclear states. The overlap matrix elements are extrapolated from mixed estimates between variational Monte Carlo and Green's function Monte Carlo wave functions. The overlap functions are used to obtain spectroscopic factors and asymptotic normalization coefficients, and they can serve as an input for reaction calculations. C1 [Brida, I.; Pieper, Steven C.; Wiringa, R. B.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Brida, I (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. EM brida@anl.gov; spieper@anl.gov; wiringa@anl.gov RI Wiringa, Robert/M-4970-2015 FU US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357, DE-FC02-07ER41457] FX We thank D. Kurath and K. M. Nollett for many valuable discussions and M. Viviani and A. Kievsky for their comments on s-shell overlaps and for providing us with HH results. The many-body calculations were performed on the parallel computers of the Laboratory Computing Resource Center and of the Mathematics and Computer Science Division, Argonne National Laboratory. This work is supported by the US Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357 and under SciDAC Grant No. DE-FC02-07ER41457. NR 63 TC 31 Z9 31 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD AUG 24 PY 2011 VL 84 IS 2 AR 024319 DI 10.1103/PhysRevC.84.024319 PG 15 WC Physics, Nuclear SC Physics GA 811RD UT WOS:000294229900001 ER PT J AU Matic, A van den Berg, AM Harakeh, MN Wortche, HJ Beard, M Berg, GPA Gorres, J LeBlanc, P O'Brien, S Wiescher, M Fujita, K Hatanaka, K Sakemi, Y Shimizu, Y Tameshige, Y Tamii, A Yosoi, M Adachi, T Fujita, Y Shimbara, Y Fujita, H Wakasa, T Greene, JP Crowter, R Schatz, H AF Matic, A. van den Berg, A. M. Harakeh, M. N. Wortche, H. J. Beard, M. Berg, G. P. A. Goerres, J. LeBlanc, P. O'Brien, S. Wiescher, M. Fujita, K. Hatanaka, K. Sakemi, Y. Shimizu, Y. Tameshige, Y. Tamii, A. Yosoi, M. Adachi, T. Fujita, Y. Shimbara, Y. Fujita, H. Wakasa, T. Greene, J. P. Crowter, R. Schatz, H. TI High-precision Si-28(p,t)Si-26 reaction to determine Mg-22(alpha, p)Al-25 reaction rates SO PHYSICAL REVIEW C LA English DT Article ID NUCLEAR-LEVEL DENSITY; X-RAY-BURSTS; ENERGY-LEVELS; GRAND-RAIDEN; SPECTROMETER; STARS; SI-26 AB The rise time of stellar x-ray bursts is a signature of thermonuclear runaway processes in the atmosphere of neutron stars and is highly sensitive to a series of (alpha, p) reactions via high-lying resonances in sd-shell nuclei. Lacking data for the relevant resonance levels, the stellar reaction rates have been calculated using statistical, Hauser-Feshbach models, assuming a high-level density. This assumption may not be correct in view of the selectivity of the (alpha, p) reaction to natural parity states. We measured the Si-28(p,t)Si-26 reaction with a high-resolution spectrometer to identify resonance levels in Si-26 above the alpha-emission threshold at 9.164 MeV excitation energy. These resonance levels are used to calculate the stellar reaction rate of the Mg-22(alpha,p)Al-25 reaction and to test the validity of the statistical assumption. C1 [Matic, A.; van den Berg, A. M.; Harakeh, M. N.; Wortche, H. J.] Univ Groningen, Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands. [Beard, M.; Berg, G. P. A.; Goerres, J.; LeBlanc, P.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Beard, M.; Berg, G. P. A.; Goerres, J.; LeBlanc, P.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA. [Fujita, K.; Hatanaka, K.; Sakemi, Y.; Shimizu, Y.; Tameshige, Y.; Tamii, A.; Yosoi, M.] Osaka Univ, Nucl Phys Res Ctr, Osaka 5600047, Japan. [Adachi, T.; Fujita, Y.; Shimbara, Y.] Osaka Univ, Dept Phys, Osaka 5600043, Japan. [Fujita, H.] Univ Witwatersrand, Sch Phys, ZA-2050 Johannesburg, South Africa. [Wakasa, T.] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan. [Greene, J. P.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Crowter, R.] Univ Surrey, Dept Phys, Guildford GU2 5XH, Surrey, England. [Schatz, H.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. RP Matic, A (reprint author), IBA Particle Therapy, Muhlenbach 1, DE-45147 Essen, Germany. RI van den Berg, Adriaan/P-6792-2015 NR 23 TC 3 Z9 3 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD AUG 24 PY 2011 VL 84 IS 2 AR 025801 DI 10.1103/PhysRevC.84.025801 PG 7 WC Physics, Nuclear SC Physics GA 811RD UT WOS:000294229900003 ER PT J AU Low, I Lykken, J Shaughnessy, G AF Low, Ian Lykken, Joseph Shaughnessy, Gabe TI Singlet scalars as Higgs boson imposters at the Large Hadron Collider SO PHYSICAL REVIEW D LA English DT Article ID STANDARD MODEL; LHC AB An electroweak singlet scalar can couple to pairs of vector bosons through loop-induced dimension five operators. Compared to a standard model Higgs boson, the singlet decay widths in the diphotons and Z gamma channels are generically enhanced, while decays into massive final states like WW and ZZ are kinematically disfavored. The overall event rates into gamma gamma and Z gamma can exceed the standard model expectations by orders of magnitude. Such a singlet may appear as a resonant signal in the gamma gamma and Z gamma channels, even with a mass above the WW kinematic threshold. C1 [Low, Ian; Shaughnessy, Gabe] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Low, Ian; Shaughnessy, Gabe] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. [Lykken, Joseph] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Low, I (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. RI lebert, thomas/H-4032-2011 FU U.S. Department of Energy [DE-AC02-06CH11357, DE-FG02-91ER40684, DE-AC02-07CH11359] FX The authors acknowledge Tom LeCompte, Heidi Schellman, Michael Schmitt, and Ciaran Williams, as well as Paddy Fox and Dave Tucker-Smith for explaining benefits of a Higgs boson friend. This work was supported in part by the U.S. Department of Energy under contracts No. DE-AC02-06CH11357 and No. DE-FG02-91ER40684. Fermilab is operated by the Fermi Research Alliance under contract DE-AC02-07CH11359 with the U.S. Department of Energy. NR 33 TC 21 Z9 21 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 24 PY 2011 VL 84 IS 3 AR 035027 DI 10.1103/PhysRevD.84.035027 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 811RO UT WOS:000294231000008 ER PT J AU Yang, XY Kratochvil, JM Wang, S Lim, EA Haiman, Z May, M AF Yang, Xiuyuan Kratochvil, Jan M. Wang, Sheng Lim, Eugene A. Haiman, Zoltan May, Morgan TI Cosmological information in weak lensing peaks SO PHYSICAL REVIEW D LA English DT Article ID CLUSTER SURVEYS; POWER SPECTRA; DARK-ENERGY; STATISTICS; CONSTRAINTS AB Recent studies have shown that the number counts of convergence peaks N(kappa) in weak lensing (WL) maps, expected from large forthcoming surveys, can be a useful probe of cosmology. We follow up on this finding, and use a suite of WL convergence maps, obtained from ray-tracing N-body simulations, to study (i) the physical origin of WL peaks with different heights, and (ii) whether the peaks contain information beyond the convergence power spectrum P-l. In agreement with earlier work, we find that high peaks (with amplitudes greater than or similar to 3.5 sigma, where sigma is the r.m.s. of the convergence kappa) are typically dominated by a single massive halo. In contrast, medium-height peaks (approximate to 0.5-1.5 sigma) cannot be attributed to a single collapsed dark matter halo, and are instead created by the projection of multiple (typically, 4-8) halos along the line of sight, and by random galaxy shape noise. Nevertheless, these peaks dominate the sensitivity to the cosmological parameters w, sigma(8), and Omega(m). We find that the peak-height distribution and its dependence on cosmology differ significantly from predictions in a Gaussian random field. We directly compute the marginalized errors on w, sigma(8), and Omega(m) from the N(kappa) + P-l combination, including redshift tomography with source galaxies at z(s) = 1 and z(s) = 2. We find that the N(kappa) + P-l combination has approximately twice the cosmological sensitivity compared to P-l alone. These results demonstrate that N(kappa) contains non-Gaussian information complementary to the power spectrum. C1 [Yang, Xiuyuan] Columbia Univ, Dept Phys, New York, NY 10027 USA. [Kratochvil, Jan M.] Univ Miami, Dept Phys, Coral Gables, FL 33146 USA. [Wang, Sheng] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Haiman, Zoltan] Columbia Univ, Dept Astron & Astrophys, New York, NY 10027 USA. [Yang, Xiuyuan; May, Morgan] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Yang, Xiuyuan; Lim, Eugene A.; Haiman, Zoltan] Columbia Univ, ISCAP, New York, NY 10027 USA. [Lim, Eugene A.] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England. RP Yang, XY (reprint author), Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA. FU NSF [AST-05-07161]; U.S. Department of Energy [DE-AC02-98CH10886]; Columbia University; Hungarian National Office for Research and Technology (NKTH); University of Miami; State of New York; [1363745] FX We thank L. Hui for helpful discussions. J.M.K. would like to thank K. Huffenberger for useful discussions about statistics and the Fisher matrix. This work was supported in part by the NSF under Grant No. AST-05-07161, the U.S. Department of Energy under Contract No. DE-AC02-98CH10886, the Initiatives in Science and Engineering (ISE) program at Columbia University, and the Polanyi Program of the Hungarian National Office for Research and Technology (NKTH). J.M.K. also received support from the University of Miami and from JPL under subcontract no. 1363745. This research utilized resources at the New York Center for Computational Sciences, a joint venture of Stony Brook University and Brookhaven National Laboratory located at Brookhaven National Laboratory which is supported by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886 and by the State of New York. The simulations and WL maps were created on the IBM Blue Gene/L and /P New York Blue. The analysis was done on the LSST Linux cluster at BNL. NR 36 TC 37 Z9 37 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD AUG 24 PY 2011 VL 84 IS 4 AR 043529 DI 10.1103/PhysRevD.84.043529 PG 24 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 811RW UT WOS:000294231800007 ER PT J AU Esser-Kahn, AP Thakre, PR Dong, HF Patrick, JF Vlasko-Vlasov, VK Sottos, NR Moore, JS White, SR AF Esser-Kahn, Aaron P. Thakre, Piyush R. Dong, Hefei Patrick, Jason F. Vlasko-Vlasov, Vitalii K. Sottos, Nancy R. Moore, Jeffrey S. White, Scott R. TI Three-Dimensional Microvascular Fiber-Reinforced Composites SO ADVANCED MATERIALS LA English DT Article ID SELF-HEALING MATERIALS; HOLLOW GLASS-FIBERS; THERMAL-DEGRADATION; CHEMILUMINESCENCE DETECTION; FABRICATION; NETWORKS; POLYMERIZATION; POLYMERS; ANTENNAS; PDMS AB A method for fabricating microvascular networks in fiber-reinforced composites is presented. The method relies on sacrificial fibers woven into fiber preforms that, when removed by depolymerization and volatilization, create 3D microvascular networks inside the composite material. By circulation of functional liquids in the resulting channels, a diverse set of new functionality is demonstrated. Simplicity, robustness, scalability, and reliance on readily available components make this method compatible with composite manufacturing methods. C1 [Esser-Kahn, Aaron P.; Moore, Jeffrey S.] Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Chem, Urbana, IL 61801 USA. [Dong, Hefei; Sottos, Nancy R.; Moore, Jeffrey S.] Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Mat Sci & Engn, Urbana, IL 61801 USA. [Patrick, Jason F.] Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Civil & Environm Engn, Urbana, IL 61801 USA. [Vlasko-Vlasov, Vitalii K.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [White, Scott R.] Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Aerosp Engn, Urbana, IL 61801 USA. RP Moore, JS (reprint author), Univ Illinois, Beckman Inst Adv Sci & Technol, Dept Chem, Urbana, IL 61801 USA. EM jsmoore@illinois.edu; swhite@illinois.edu RI Patrick, Jason/J-5125-2015 OI Patrick, Jason/0000-0003-4378-0812 FU AFOSR [FA9550-05-1-0346, FA9550-09-0686, FA9550-10-1-0255]; OFA/Department of Homeland Security [2008-ST-061-ED002] FX H.D. and J.F.P. contributed equally to this work. This work was supported by the AFOSR through grants FA9550-05-1-0346, FA9550-09-0686, and FA9550-10-1-0255. We also acknowledge the support of the OFA/Department of Homeland Security (project #2008-ST-061-ED002). The authors acknowledge Dr. M. Mohamed and Dr. D. Mungalov of 3TEX Inc. for weaving the 3D fiber preforms containing sacrificial fibers. The authors thank M. Cale and K. Feng for general assistance. The authors thank Beckman ITG as well as Dorothy Loudermilk for assistance in figure creation. NR 35 TC 94 Z9 95 U1 13 U2 108 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0935-9648 J9 ADV MATER JI Adv. Mater. PD AUG 23 PY 2011 VL 23 IS 32 BP 3654 EP + DI 10.1002/adma.201100933 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 821LU UT WOS:000294977300004 PM 21766345 ER PT J AU Yuan, DQ Lu, WG Zhao, D Zhou, HC AF Yuan, Daqiang Lu, Weigang Zhao, Dan Zhou, Hong-Cai TI Highly Stable Porous Polymer Networks with Exceptionally High Gas-Uptake Capacities SO ADVANCED MATERIALS LA English DT Article ID METAL-ORGANIC FRAMEWORKS; HIGH-SURFACE-AREA; POROSITY; STORAGE AB Highly stable porous polymer networks (PPNs) are synthesized through a Yamamoto homocoupling reaction between tetrahedral monomers. Among those polymers, PPN-4 shows exceptionally high Langmuir surface area of 10063 m(2) g(-1) (SA(BET): 6461 m(2) g(-1)). It also exhibits ultra high hydrogen, methane, and carbon dioxide storage capacities. These properties make it a perfect adsorbent for clean energy applications. C1 [Yuan, Daqiang; Lu, Weigang; Zhou, Hong-Cai] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA. [Zhao, Dan] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Zhou, HC (reprint author), Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA. EM zhou@mail.chem.tamu.edu RI Zhao, Dan/D-5975-2011; EFRC, CGS/I-6680-2012; Zhou, Hong-Cai/A-3009-2011; Lu, Weigang/E-8066-2012; Stangl, Kristin/D-1502-2015; Yuan, Daqiang/F-5695-2010; OI Zhao, Dan/0000-0002-4427-2150; Zhou, Hong-Cai/0000-0002-9029-3788; Yuan, Daqiang/0000-0003-4627-072X; Zhou, Hong-Cai/0000-0003-0115-408X FU U.S. Department of Energy (DOE) [DE-SC0001015, DE-FC36-07GO17033, DE-AR0000073]; National Science Foundation (NSF) [CBET-0930079, CHE-0911207]; Welch Foundation [A-1725] FX This work was supported by the U.S. Department of Energy (DOE DE-SC0001015, DE-FC36-07GO17033, and DE-AR0000073), the National Science Foundation (NSF CBET-0930079 and CHE-0911207), and the Welch Foundation (A-1725). We acknowledge Dr. Vladimir Bakhmoutov for his help in solid state NMR, Dr. Michael Pendleton for his help in SEM image, Mei Cai and Eric Poirier for their help in high pressure hydrogen adsorption measurement. We acknowledge the Laboratory for Molecular Simulation of Texas A&M University for providing the Material Studio 5.5 software. NR 22 TC 285 Z9 288 U1 22 U2 227 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0935-9648 J9 ADV MATER JI Adv. Mater. PD AUG 23 PY 2011 VL 23 IS 32 BP 3723 EP + DI 10.1002/adma.201101759 PG 4 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 821LU UT WOS:000294977300017 PM 21732563 ER PT J AU Thomsen, MF Denton, MH Jordanova, VK Chen, L Thorne, RM AF Thomsen, M. F. Denton, M. H. Jordanova, V. K. Chen, L. Thorne, R. M. TI Free energy to drive equatorial magnetosonic wave instability at geosynchronous orbit SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID OUTER RADIATION BELT; ION-CYCLOTRON WAVES; LINEAR DIFFUSION-COEFFICIENTS; WHISTLER-MODE CHORUS; GEOMAGNETIC STORMS; RELATIVISTIC ELECTRONS; RING CURRENT; INNER MAGNETOSPHERE; MAGNETIC STORM; SOLAR-WIND AB The magnetosonic (or ion Bernstein) instability is driven by a positive slope in the ion distribution function perpendicular to the magnetic field at energies above about 1 keV. Fifteen years of multisatellite geosynchronous observations are used to determine the statistical occurrence of ion distributions with positive slopes as a function of energy, local time, geomagnetic activity, and phase of the solar cycle. There is no discernable dependence on phase of the solar cycle, but there are clear dependences on the other parameters. Positive slopes are seen primarily in the energy range between similar to 3 and similar to 24 keV. The peak occurrence of positive slopes is between midmorning and dusk and moves progressively toward earlier local times for higher energies. The occurrence is significantly greater and extends over a broader local time range for low levels of geomagnetic activity than for high activity, for all energies. At high activity levels, the occurrence tends to be more closely confined near noon. Peak occurrence rates are similar to 30% at energies just below 10 keV. A superposed epoch analysis of 77 coronal mass ejection (CME)-driven storms and 93 high-speed solar wind (HSS)-driven storms shows a relative suppression of the occurrence frequency of positive slopes during the recovery phase. The suppression is particularly long-lived for HSS-driven streams. C1 [Thomsen, M. F.; Jordanova, V. K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Chen, L.; Thorne, R. M.] Univ Calif Los Angeles, Dept Atmospher Sci, Los Angeles, CA 90095 USA. [Denton, M. H.] Univ Lancaster, Dept Phys, Lancaster LA1 4WA, England. RP Thomsen, MF (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM mthomsen@lanl.gov RI Chen, Lunjin/L-1250-2013; OI Chen, Lunjin/0000-0003-2489-3571; Denton, Michael/0000-0002-1748-3710; Jordanova, Vania/0000-0003-0475-8743 FU NASA [NNH08AJ01I, NNH10AP09I, NNX08AQ88G, NNH08AJ011]; STFC [ST/G002401/1]; U.S. Department of Energy FX M.F.T. thanks Lancaster University for their hospitality during the early phases of this study. The authors thank Davis Thomsen, Dot Delapp, and Jim Krone for assistance in data preparation. This research was supported by NASA grants NNH08AJ01I, NNH10AP09I, NNX08AQ88G, and NNH08AJ011. Work at Lancaster was supported by STFC grant ST/G002401/1. Work at Los Alamos was conducted under the auspices of the U.S. Department of Energy. NR 51 TC 20 Z9 20 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 23 PY 2011 VL 116 AR A08220 DI 10.1029/2011JA016644 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 813KL UT WOS:000294365400002 ER PT J AU Dufour, C Fitzsimmons, MR Borchers, JA Laver, M Krycka, KL Dumesnil, K Watson, SM Chen, WC Won, J Singh, S AF Dufour, C. Fitzsimmons, M. R. Borchers, J. A. Laver, M. Krycka, K. L. Dumesnil, K. Watson, S. M. Chen, W. C. Won, J. Singh, S. TI Nanometer-size magnetic domains and coherent magnetization reversal in a giant exchange-bias system SO PHYSICAL REVIEW B LA English DT Article ID ANISOTROPY; SCATTERING; LENGTH; FIELD; SANS AB The role of magnetic domains and domain walls in exchange bias has stimulated much contemporary deliberation. Here we present compelling evidence obtained with small-angle scattering of unpolarized- and polarized-neutron beams that magnetization reversal occurs via formation of 10-100s nm-sized magnetic domains in an exchange-biased DyFe(2)/YFe(2) superlattice. The reversal mechanism is observed to involve rotation of magnetization in and out of the sample plane. Remarkably, the domains are arranged in a quasiperiodic manner in the plane of the sample. The length scale of domain formation is similar to that of structural defects at the seed-layer-superlattice interface. C1 [Dufour, C.; Dumesnil, K.] Univ Nancy 1, Phys Mat Lab, F-54506 Vandoeuvre Les Nancy, France. [Fitzsimmons, M. R.; Won, J.; Singh, S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Borchers, J. A.; Krycka, K. L.; Watson, S. M.; Chen, W. C.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA. [Laver, M.] Paul Scherrer Inst, Lab Neutron Scattering, CH-5232 Villigen, Switzerland. [Laver, M.] Tech Univ Denmark, Riso DTU, Div Mat Sci, DK-4000 Roskilde, Denmark. [Laver, M.] Univ Copenhagen, Niels Bohr Inst, Nanosci Ctr, DK-2100 Copenhagen, Denmark. [Chen, W. C.] Univ Maryland, College Pk, MD 20742 USA. [Singh, S.] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India. RP Dufour, C (reprint author), Univ Nancy 1, Phys Mat Lab, BP 239, F-54506 Vandoeuvre Les Nancy, France. EM fitz@lanl.gov RI Sanders, Susan/G-1957-2011; Lujan Center, LANL/G-4896-2012; Singh, Surendra/E-5351-2011 OI DUMESNIL, Karine/0000-0002-2304-4490; won, Jonghan/0000-0002-7612-1322; Singh, Surendra/0000-0001-5482-9744 FU Department of Energy's Office of Basic Energy Science; DOE [DE-AC52-06NA25396]; National Science Foundation [DMR-0454672]; Universite Nancy; DanScatt FX This work was supported by the Office of Basic Energy Science, US Department of Energy, BES-DMS funded by the Department of Energy's Office of Basic Energy Science. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396. This work utilized facilities at the NIST Center for Neutron Research supported in part by the National Science Foundation under Agreement No. DMR-0454672. M.R.F. gratefully acknowledges financial assistance from the Universite Nancy. M.L. acknowledges support from DanScatt. NR 36 TC 14 Z9 14 U1 0 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 23 PY 2011 VL 84 IS 6 AR 064420 DI 10.1103/PhysRevB.84.064420 PG 11 WC Physics, Condensed Matter SC Physics GA 811PN UT WOS:000294225000010 ER PT J AU Visani, C Tornos, J Nemes, NM Rocci, M Leon, C Santamaria, J te Velthuis, SGE Liu, YH Hoffmann, A Freeland, JW Garcia-Hernandez, M Fitzsimmons, MR Kirby, BJ Varela, M Pennycook, SJ AF Visani, C. Tornos, J. Nemes, N. M. Rocci, M. Leon, C. Santamaria, J. te Velthuis, S. G. E. Liu, Yaohua Hoffmann, A. Freeland, J. W. Garcia-Hernandez, M. Fitzsimmons, M. R. Kirby, B. J. Varela, M. Pennycook, S. J. TI Symmetrical interfacial reconstruction and magnetism in La0.7Ca0.3MnO3/YBa2Cu3O7/La0.7Ca0.3MnO3 heterostructures SO PHYSICAL REVIEW B LA English DT Article ID SUPERCONDUCTIVITY AB We have analyzed the interface structure and composition of La0.7Ca0.3MnO3/YBa2Cu3O7/La0.7Ca0.3MnO3 trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x-ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces [J. Salafranca and S. Okamoto, Phys. Rev. Lett. 105, 256804 (2010)]. C1 [Visani, C.; Tornos, J.; Nemes, N. M.; Rocci, M.; Leon, C.; Santamaria, J.] Univ Complutense Madrid, Dept Fis Aplicada 3, GFMC, ES-28040 Madrid, Spain. [te Velthuis, S. G. E.; Liu, Yaohua; Hoffmann, A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Freeland, J. W.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Garcia-Hernandez, M.] CSIC, Inst Ciencia Mat Madrid, ES-28049 Canto Blanco, Spain. [Fitzsimmons, M. R.; Kirby, B. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Varela, M.; Pennycook, S. J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Visani, C (reprint author), Univ Complutense Madrid, Dept Fis Aplicada 3, GFMC, Campus Moncloa, ES-28040 Madrid, Spain. RI Leon, Carlos/A-5587-2008; Lujan Center, LANL/G-4896-2012; Varela, Maria/H-2648-2012; Hoffmann, Axel/A-8152-2009; te Velthuis, Suzanne/I-6735-2013; Varela, Maria/E-2472-2014; Garcia-Hernandez, Mar/J-9520-2014; Santamaria, Jacobo/N-8783-2016; OI Leon, Carlos/0000-0002-3262-1843; Hoffmann, Axel/0000-0002-1808-2767; te Velthuis, Suzanne/0000-0002-1023-8384; Varela, Maria/0000-0002-6582-7004; Garcia-Hernandez, Mar/0000-0002-5987-0647; Santamaria, Jacobo/0000-0003-4594-2686; Liu, Yaohua/0000-0002-5867-5065 FU Spanish MICINN [MAT 2008 06517, CSD2009-00013, CAM S2009-MAT 1756]; European Research Council [239739]; U.S. Department of Energy, Office of Science [DE-AC02-06CH11357]; Department of Energy's Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396]; Office of Science, Materials Sciences and Engineering Division of the U.S. Department of Energy FX Work at UCM was supported by Spanish MICINN Grant No. MAT 2008 06517, Consolider Ingenio CSD2009-00013 (IMAGINE), CAM S2009-MAT 1756 (PHAMA), and the European Research Council Starting Investigator Award, Grant No. 239739 STEMOX. Argonne National Laboratory's work was supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. This work has benefited from the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Department of Energy's Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE through Contract No. DE-AC52-06NA25396. Work at ORNL (M.V. and S.J.P.) was supported by the Office of Science, Materials Sciences and Engineering Division of the U.S. Department of Energy. NR 32 TC 19 Z9 19 U1 1 U2 35 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 23 PY 2011 VL 84 IS 6 AR 060405 DI 10.1103/PhysRevB.84.060405 PG 5 WC Physics, Condensed Matter SC Physics GA 811PN UT WOS:000294225000001 ER PT J AU Koposov, AY Szymanski, P Cardolaccia, T Meyer, TJ Klimov, VI Sykora, M AF Koposov, Alexey Y. Szymanski, Paul Cardolaccia, Thomas Meyer, Thomas J. Klimov, Victor I. Sykora, Milan TI Electronic Properties and Structure of Assemblies of CdSe Nanocrystal Quantum Dots and Ru-Polypyridine Complexes Probed by Steady State and Time-Resolved Photoluminescence SO ADVANCED FUNCTIONAL MATERIALS LA English DT Article ID RESONANCE ENERGY-TRANSFER; SEMICONDUCTOR NANOCRYSTALS; TRIOCTYLPHOSPHINE OXIDE; EXCITON DISSOCIATION; SPHERICAL SURFACE; LIGAND ADSORPTION; CLOSEST PACKING; CHARGE-TRANSFER; EQUAL SPHERES; LUMINESCENCE AB Chemical and electronic interactions between CdSe nanocrystal quantum dots (NQDs) and Ru-polypyridine complexes are studied in solution. It is shown that photoluminescence (PL) can be used to effectively monitor the formation of NQD-complex assemblies in real time. It is also shown that with the aid of Langmuir isotherm modeling, the PL studies can be used to quantitatively characterize the composition of the assemblies and the strength of electronic interactions between their components. The approach demonstrated here is general and can be applied to other systems that combine semiconductor NQDs and appropriately functionalized organometallic or organic molecules interacting with NQDs via energy transfer, charge transfer, or other mechanisms leading to quenching of NQD emission. C1 [Koposov, Alexey Y.; Szymanski, Paul; Klimov, Victor I.; Sykora, Milan] Los Alamos Natl Lab, Div Chem, C PCS, Los Alamos, NM 87545 USA. [Cardolaccia, Thomas; Meyer, Thomas J.] Univ N Carolina, Dept Chem, Chapel Hill, NC 27514 USA. RP Koposov, AY (reprint author), Los Alamos Natl Lab, Div Chem, C PCS, MS J567, Los Alamos, NM 87545 USA. EM klimov@lanl.gov; sykoram@lanl.gov RI Koposov, Alexey/R-9423-2016; OI Koposov, Alexey/0000-0001-5898-3204; Klimov, Victor/0000-0003-1158-3179 FU Los Alamos Directed Research and Development Funds; U.S. Department of Energy (DOE), Office of Science (OS), Office of Basic Energy Sciences (BES); Chemical Sciences, Geosciences and Biosciences Division of the Office of Basic Energy Sciences, U.S. Department of Energy [DE-FG02-06ER15788] FX A.Y.K., P. S and M. S acknowledge support of the Los Alamos Directed Research and Development Funds. V. I. K. acknowledges support of the Center for Advanced Solar Photophysics, an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science (OS), Office of Basic Energy Sciences (BES). T.C. and T.J.M. acknowledge funding by the Chemical Sciences, Geosciences and Biosciences Division of the Office of Basic Energy Sciences, U.S. Department of Energy through Grant DE-FG02-06ER15788. NR 62 TC 15 Z9 15 U1 2 U2 34 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 1616-301X J9 ADV FUNCT MATER JI Adv. Funct. Mater. PD AUG 23 PY 2011 VL 21 IS 16 BP 3159 EP 3168 DI 10.1002/adfm.201100415 PG 10 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 810YH UT WOS:000294166200018 ER PT J AU Xu, L Ankner, JF Sukhishvili, SA AF Xu, Li Ankner, John F. Sukhishvili, Svetlana A. TI Steric Effects in Ionic Pairing and Polyelectrolyte Interdiffusion within Multilayered Films: A Neutron Reflectometry Study SO MACROMOLECULES LA English DT Article ID EXPONENTIAL-GROWTH; 2-(DIMETHYLAMINO)ETHYL METHACRYLATE; ELECTROSTATIC INTERACTIONS; MULTICOMPARTMENT FILMS; POLYMER MULTILAYERS; SALT; REFLECTIVITY; POLYCATIONS; DIFFUSION; COMPETITION AB Using a series of polycations synthesized by atom transfer radical polymerization (ATRP); we investigate the effects of the polymer charge density and hydrophobicity on salt-induced interdiffusion of polymer layers within polyelectrolyte multilayer (PEM) films. Polycations with two distinct hydrophobicities and various quaternization degrees (QPDMA and QPDEA) were derived from parent polymers of matched molecular weights-poly(2-(dimethylamino)ethyl methacrylate) (PDMA) and poly(2-(diethylamino)ethyl methacrylate) (PDEA)-by quaternization with either methyl or ethyl sulfate. Multilayers of these polycations with polystyrenesulfonate (PSS) were assembled in low-salt conditions and annealed in NaCl solutions to induce layer intermixing. As revealed by neutron reflectometry (NR), polycations with lower charge density resulted in a faster decay of film structure with distance from the substrate. Interestingly, when comparing polymer mobility in QPDEA/PSS and QPDMA/PSS films, layer intermixing was faster in the case of more hydrophobic QPDEA as compared to QPDMA because of the weaker ionic pairing (due to the presence of a bulky ethyl spacer) between QPDEA and PSS. C1 [Ankner, John F.] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA. [Xu, Li; Sukhishvili, Svetlana A.] Stevens Inst Technol, Dept Chem Chem Biol & Biomed Engn, Hoboken, NJ 07030 USA. RP Ankner, JF (reprint author), Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA. EM anknerjf@ornl.gov; ssukhish@stevens.edu RI Xu, Li/E-6260-2012; OI Ankner, John/0000-0002-6737-5718 FU National Science Foundation [DMR-0906474]; UT-Battelle, LLC [DE-AC05-00OR22725] FX We thank Aliaksandr Zhuk (Stevens Institute of Technology) for his help with NR measurements and Thomas Cattabiani and Dr. Yong Zhang (Stevens Institute of Technology) for their useful discussions. We are also thankful to Bo Liu (Stony Brook University) for his help with Gaussian 98 ab initio calculations. This work was supported by the National Science Foundation under Award DMR-0906474. The neutron measurements were performed at the Spa Ration Neutron Source at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the DOE under Contract DE-AC05-00OR22725. NR 65 TC 21 Z9 21 U1 2 U2 22 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD AUG 23 PY 2011 VL 44 IS 16 BP 6518 EP 6524 DI 10.1021/ma200986d PG 7 WC Polymer Science SC Polymer Science GA 809SF UT WOS:000294076300035 ER PT J AU Sun, Y Henderson, KJ Jiang, Z Strzalka, JW Wang, J Shull, KR AF Sun, Yan Henderson, Kevin J. Jiang, Zhang Strzalka, Joseph W. Wang, Jin Shull, Kenneth R. TI Effects of Reactive Annealing on the Structure of Poly(methacrylic acid)-Poly(methyl methacrylate) Diblock Copolymer Thin Films SO MACROMOLECULES LA English DT Article ID X-RAY-SCATTERING; AMPHIPHILIC BLOCK-COPOLYMERS; WAVE BORN APPROXIMATION; GRAZING-INCIDENCE; POLYMER-FILMS; POLY(ACRYLIC ACID); ULTRATHIN FILMS; CROSS-SECTION; NANOSTRUCTURES; ARRAYS AB We monitor the structural evolution of a poly(tert-butyl methacrylate)-poly(methyl methacrylate) (PtBMA-PMMA) diblock copolymer thin film undergoing conversion via reactive annealing to yield poly(methacrylic acid)-poly(methyl methacrylate) (PMAA-PMMA). Using grazing-incidence small-angle X-ray scattering (GISAXS) and atomic force microscopy (AFM), we confirm the generation of well-ordered cylindrical micro domains in the PtBMA-PMMA precursor film after solvent annealing. After initiating thermal deprotection, the high degree of ordering can be maintained up to 25% conversion of the diblock into PMAA-PMMA. Beyond this point, a significant decrease in the overall film thickness associated with the conversion process cannot accommodate the hexagonal lattice adopted by the cylindrical microdomains. At the same time, rearrangement of PMMA cores in a PtBMA matrix that is becoming progressively glassier presents further difficulties in maintaining a reasonable structure. The fully converted PMAA-PMMA film contains a system of cylindrical microdomains that lack good ordering. C1 [Sun, Yan; Henderson, Kevin J.; Shull, Kenneth R.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Sun, Yan; Jiang, Zhang; Strzalka, Joseph W.; Wang, Jin] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Shull, KR (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. EM k-shull@northwestern.edu RI Jiang, Zhang/A-3297-2012; Shull, Kenneth/B-7536-2009 OI Jiang, Zhang/0000-0003-3503-8909; FU NSF-NSEC; NSF-MRSEC; Keck Foundation; State of Illinois; Northwestern University; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; NSF Division of Materials Research [DMR-0907384] FX The AFM work was performed in the NIFTI facility of NUANCE Center at Northwestern University. NUANCE Center is supported by NSF-NSEC, NSF-MRSEC, the Keck Foundation, the State of Illinois, and Northwestern University. The TGA measurements were carried out at the Polymer Characterization Laboratory at Northwestern University. The GISAXS experiments were conducted at the Advanced Photon Source at Argonne National Laboratory. Use of the APS was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors gratefully acknowledge the APS staff at 8-ID for their technical support. We also acknowledge additional support from the NSF Division of Materials Research, Grant DMR-0907384. NR 46 TC 7 Z9 7 U1 1 U2 25 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD AUG 23 PY 2011 VL 44 IS 16 BP 6525 EP 6531 DI 10.1021/ma201000g PG 7 WC Polymer Science SC Polymer Science GA 809SF UT WOS:000294076300036 ER PT J AU Bradley, JA Sakko, A Seidler, GT Rubio, A Hakala, M Hamalainen, K Cooper, G Hitchcock, AP Schlimmer, K Nagle, KP AF Bradley, J. A. Sakko, A. Seidler, G. T. Rubio, A. Hakala, M. Hamalainen, K. Cooper, G. Hitchcock, A. P. Schlimmer, K. Nagle, K. P. TI Reexamining the Lyman-Birge-Hopfield band of N-2 SO PHYSICAL REVIEW A LA English DT Article ID X-RAY-SCATTERING; GENERALIZED OSCILLATOR-STRENGTH; MOMENTUM-TRANSFER DEPENDENCE; DIFFERENTIAL CROSS-SECTIONS; ELECTRON-IMPACT EXCITATION; MOLECULAR NITROGEN; HIGH-PRESSURE; HIGH-ENERGY; K-EDGE; INCIDENT ENERGIES AB Motivated by fundamental molecular physics and by atmospheric and planetary sciences, the valence excitations of N-2 gas have seen several decades of intensive study, especially by electron-energy-loss spectroscopy (EELS). It was consequently surprising when a comparison of nonresonant inelastic x-ray scattering (NIXS) and nonresonant EELS found strong evidence for violations of the first Born approximation for EELS when leaving the dipole scattering limit. Here we reassess the relative strengths of the constituent resonances of the lowest-energy excitations of N-2, encompassed by the so-called Lyman-Birge-Hopfield (LBH) band, expanding on the prior, qualitative interpretation of the NIXS results for N-2 by both quantifying the generalized oscillator strength of the lowest-energy excitations and also presenting a time-dependent density functional theory (TDDFT) calculation of the q dependence of the entire low-energy electronic excitation spectrum. At high q, we find that the LBH band has an unexpectedly large contribution from the octupolar w(1)Delta(u) resonance exactly in the regime where theory and EELS experiment for the presumed-dominant a(1)Pi(g) resonance have previously had substantial disagreement, and also where the EELS results must now be expected to show violations of the Born approximation. After correcting for this contamination, the a(1)Pi(g) generalized oscillator strength from the NIXS results is in good agreement with prior theory. The NIXS spectra, over their entire q range, also find satisfactory agreement with the TDDFT calculations for both bound and continuum excitations. C1 [Bradley, J. A.] Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Livermore, CA 94550 USA. [Bradley, J. A.; Seidler, G. T.; Schlimmer, K.; Nagle, K. P.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Sakko, A.; Hakala, M.; Hamalainen, K.] Univ Helsinki, Dept Phys, FI-00014 Helsinki, Finland. [Rubio, A.] Univ Basque Country, Ctr Fis Mat CSIS UPV EHU MPC, Nanobio Spect Grp, E-20018 San Sebastian, Spain. [Rubio, A.] Univ Basque Country, Ctr Fis Mat CSIS UPV EHU MPC, ETSF Sci Dev Ctr, Dept Fis Mat, E-20018 San Sebastian, Spain. [Cooper, G.; Hitchcock, A. P.] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada. [Rubio, A.] DIPC, E-20018 San Sebastian, Spain. RP Bradley, JA (reprint author), Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Livermore, CA 94550 USA. EM bradley41@llnl.gov RI Hamalainen, Keijo/A-3986-2010; Octopus, TDDFT Code/E-2400-2011; Rubio, Angel/A-5507-2008; CSIC-UPV/EHU, CFM/F-4867-2012; Seidler, Gerald/I-6974-2012; DONOSTIA INTERNATIONAL PHYSICS CTR., DIPC/C-3171-2014 OI Hamalainen, Keijo/0000-0002-9234-9810; Rubio, Angel/0000-0003-2060-3151; FU US Department of Energy; Natural Sciences and Engineering Research Council (NSERC) of Canada; Australian Research Council; University of Helsinki; Academy of Finland [1127462]; National Graduate School in Materials Physics; US Department of Energy - Basic Energy Sciences; NSERC; University of Washington; Simon Fraser University; Advanced Photon Source; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH1135]; MICINN [FIS2010-21282-C02-01]; ACI-promociona [ACI2009-1036]; Grupos Consolidados UPV/EHU del Gobierno Vasco [IT-319-07]; European Community [211956] FX We thank Edward Kelsey, Don Madison, William McCurdy, Charles Malone, and Paul Johnson for useful discussions. This work was supported by the US Department of Energy, the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Australian Research Council, the Research Funds of the University of Helsinki, and the Academy of Finland (Contract No. 1127462, Centers of Excellence Program 2006-2011, and National Graduate School in Materials Physics). PNC/XOR facilities at the Advanced Photon Source, and research at these facilities, are supported by the US Department of Energy - Basic Energy Sciences, a Major Resources Support grant from NSERC, the University of Washington, Simon Fraser University, and the Advanced Photon Source. Use of the Advanced Photon Source is also supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH1135. A. R. acknowledges support by MICINN (FIS2010-21282-C02-01), ACI-promociona (ACI2009-1036), Grupos Consolidados UPV/EHU del Gobierno Vasco (IT-319-07), and the European Community through e-I3 ETSF project (Contract No. 211956). NR 68 TC 12 Z9 12 U1 1 U2 17 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 EI 1094-1622 J9 PHYS REV A JI Phys. Rev. A PD AUG 23 PY 2011 VL 84 IS 2 AR 022510 DI 10.1103/PhysRevA.84.022510 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 811OG UT WOS:000294220400001 ER PT J AU Decker, M Feth, N Soukoulis, CM Linden, S Wegener, M AF Decker, Manuel Feth, Nils Soukoulis, Costas M. Linden, Stefan Wegener, Martin TI Retarded long-range interaction in split-ring-resonator square arrays SO PHYSICAL REVIEW B LA English DT Article ID PHOTONIC METAMATERIALS; OPTICAL-ACTIVITY; GRAINS AB We systematically investigate the optical extinction spectra of planar gold split-ring-resonator square arrays operating at similar to 200-THz frequency versus the lattice constant and versus angle of incidence. We find a strong dependence of the resonance damping on the in-plane wave vector, namely, the resonance damping increases (decreases) versus the in-plane wave vector for small lattice constants (large lattice constants). By comparison with two simple one-dimensional models as well as with more complete numerical calculations, this behavior is interpreted in terms of a long-range retarded interaction among the split-ring resonators. In contrast, the assumptions of only nearest-neighbor interaction and/or of an instantaneous interaction lead to a striking disagreement with the overall experimental facts. C1 [Decker, Manuel; Feth, Nils; Linden, Stefan; Wegener, Martin] Karlsruhe Inst Technol KIT, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany. [Decker, Manuel; Feth, Nils; Linden, Stefan; Wegener, Martin] Karlsruhe Inst Technol KIT, Inst Angew Phys, D-76131 Karlsruhe, Germany. [Decker, Manuel; Feth, Nils; Linden, Stefan; Wegener, Martin] Karlsruhe Inst Technol KIT, DFG Ctr Funct Nanostruct CFN, D-76131 Karlsruhe, Germany. [Soukoulis, Costas M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Soukoulis, Costas M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Soukoulis, Costas M.] Univ Crete, IESL FORTH, GR-71110 Iraklion, Greece. [Soukoulis, Costas M.] Univ Crete, Dept Mat Sci & Technol, GR-71110 Iraklion, Greece. [Linden, Stefan] Univ Bonn, Inst Phys, D-53115 Bonn, Germany. RP Decker, M (reprint author), Karlsruhe Inst Technol KIT, Inst Nanotechnol, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany. RI Soukoulis, Costas/A-5295-2008; Wegener, Martin/S-5456-2016; OI Decker, Manuel/0000-0002-9125-0851 FU Deutsche Forschungsgemeinschaft (DFG); State of Baden-Wurttemberg; Karlsruhe Institute of Technology (KIT) through the DFG Center for Functional Nanostructures (CFN) [A 1.5]; Future and Emerging Technologies (FET) within European Commission [213390]; Bundesministerium fur Bildung und Forschung (BMBF); Department of Energy (Basic Energy Sciences) [DE-AC02-07CH11358] FX We acknowledge support by the Deutsche Forschungsgemeinschaft (DFG), the State of Baden-Wurttemberg, and the Karlsruhe Institute of Technology (KIT) through the DFG Center for Functional Nanostructures (CFN) within subproject A 1.5. The project PHOME acknowledges the financial support of the Future and Emerging Technologies (FET) programme within the Seventh Framework Programme for Research of the European Commission, under FET-Open Grant No. 213390. The project METAMAT is supported by the Bundesministerium fur Bildung und Forschung (BMBF). Work at Ames Lab was supported by Department of Energy (Basic Energy Sciences), Contract No. DE-AC02-07CH11358. NR 25 TC 31 Z9 31 U1 1 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 23 PY 2011 VL 84 IS 8 AR 085416 DI 10.1103/PhysRevB.84.085416 PG 7 WC Physics, Condensed Matter SC Physics GA 811QJ UT WOS:000294227700010 ER PT J AU Hager, U Brown, JR Buchmann, L Carmona-Gallardo, M Erikson, L Fallis, J Greife, U Hutcheon, D Ottewell, D Ruiz, C Sjue, S Vockenhuber, C AF Hager, U. Brown, J. R. Buchmann, L. Carmona-Gallardo, M. Erikson, L. Fallis, J. Greife, U. Hutcheon, D. Ottewell, D. Ruiz, C. Sjue, S. Vockenhuber, C. TI Direct total cross section measurement of the O-16(alpha,gamma)Ne-20 reaction at E-c.m.=2.26 MeV SO PHYSICAL REVIEW C LA English DT Article ID LOW ENERGIES; NONRESONANT CAPTURE; SEARCH; ISAC AB In stellar helium burning, O-16 represents the endpoint of the helium-burning sequence due to the low rate of O-16(alpha,gamma)Ne-20. We present a new direct measurement of the total capture reaction rate of O-16(alpha,gamma)Ne-20 at E-c.m. = 2.26MeV employing the DRAGON recoil separator. For the first time, the total S factor and its contributing direct capture transitions could be determined in one experiment. C1 [Hager, U.; Greife, U.] Colorado Sch Mines, Golden, CO 80401 USA. [Brown, J. R.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England. [Buchmann, L.; Fallis, J.; Hutcheon, D.; Ottewell, D.; Ruiz, C.; Sjue, S.] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Carmona-Gallardo, M.] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain. [Erikson, L.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Vockenhuber, C.] ETH, Zurich, Switzerland. RP Hager, U (reprint author), Colorado Sch Mines, Golden, CO 80401 USA. EM uhager@mines.edu RI Carmona Gallardo, Mariano/B-7586-2016; Hager, Ulrike/O-1738-2016 OI Carmona Gallardo, Mariano/0000-0003-1946-1571; FU Natural Sciences and Engineering Research Council of Canada; US DOE Office of Nuclear Physics FX We would like to thank the beam delivery and ISAC operations groups at TRIUMF. The authors gratefully acknowledge funding from the Natural Sciences and Engineering Research Council of Canada and the US DOE Office of Nuclear Physics. We also gratefully acknowledge the invaluable assistance in beam production from K. Jayamanna. NR 10 TC 8 Z9 8 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD AUG 23 PY 2011 VL 84 IS 2 AR 022801 DI 10.1103/PhysRevC.84.022801 PG 4 WC Physics, Nuclear SC Physics GA 811QX UT WOS:000294229300001 ER PT J AU Kopp, J Maltoni, M Schwetz, T AF Kopp, Joachim Maltoni, Michele Schwetz, Thomas TI Are There Sterile Neutrinos at the eV Scale? SO PHYSICAL REVIEW LETTERS LA English DT Article ID NUCLEAR-POWER-REACTOR; OSCILLATIONS; SEARCH; BUGEY; PLANT AB New predictions for the antineutrino flux from nuclear reactors suggest that reactor experiments may have measured a deficit in this flux, which can be interpreted in terms of oscillations between the known active neutrinos and new sterile states. We perform a reanalysis of global short-baseline neutrino oscillation data in a framework with one or two sterile neutrinos. While one sterile neutrino is still not sufficient to reconcile the signals suggested by reactor experiments and by the LSND and MiniBooNE experiments with null results from other searches, we find that, with the new reactor flux prediction, the global fit improves considerably when two sterile neutrinos are introduced. C1 [Kopp, Joachim] Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. [Maltoni, Michele] Inst Fis Teor UAM CSIC, E-28049 Madrid, Spain. [Schwetz, Thomas] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany. RP Kopp, J (reprint author), Fermilab Natl Accelerator Lab, Dept Theoret Phys, POB 500, Batavia, IL 60510 USA. RI Kopp, Joachim/B-5866-2013; Maltoni, Michele/H-9250-2015 OI Maltoni, Michele/0000-0001-7444-4542 FU U.S. Department of Energy [DE-AC02-07CH11359]; Spanish MICINN [FPA-2009-08958, FPA-2009-09017, CSD-2008-0037]; Comunidad Autnoma de Madrid [HEPHACOS S2009/ESP-1473]; Deutsche Forschungsgemeinschaft; European Union (EUROv) FX This work was supported by the U.S. Department of Energy (DE-AC02-07CH11359), the Spanish MICINN (FPA-2009-08958, FPA-2009-09017, CSD-2008-0037), the Comunidad Autnoma de Madrid (HEPHACOS S2009/ESP-1473), the Deutsche Forschungsgemeinschaft, and the European Union (EUROv). NR 33 TC 159 Z9 159 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 23 PY 2011 VL 107 IS 9 AR 091801 DI 10.1103/PhysRevLett.107.091801 PG 5 WC Physics, Multidisciplinary SC Physics GA 812DM UT WOS:000294268000004 PM 21929224 ER PT J AU Wang, SC Chang, Y Guo, JJ Zeng, QN Ellis, BE Chen, JG AF Wang, Shucai Chang, Ying Guo, Jianjun Zeng, Qingning Ellis, Brian E. Chen, Jin-Gui TI Arabidopsis Ovate Family Proteins, a Novel Transcriptional Repressor Family, Control Multiple Aspects of Plant Growth and Development SO PLOS ONE LA English DT Article ID AUX/IAA PROTEINS; CELL-DIVISION; BETA-SUBUNIT; AUXIN; THALIANA; GENES; ROLES; LEAF; SUPPRESSES; EXPRESSION AB Background: The Arabidopsis genome contains 18 genes that are predicted to encode Ovate Family Proteins (AtOFPs), a protein family characterized by a conserved OVATE domain, an approximately 70-amino acid domain that was originally found in tomato OVATE protein. Among AtOFP family members, AtOFP1 has been shown to suppress cell elongation, in part, by suppressing the expression of AtGA20ox1, AtOFP4 has been shown to regulate secondary cell wall formation by interact with KNOTTED1-LIKE HOMEODOMAIN PROTEIN 7 (KNAT7), and AtOFP5 has been shown to regulate the activity of a BEL1-LIKEHOMEODOMAIN 1(BLH1)-KNAT3 complex during early embryo sac development, but little is known about the function of other AtOFPs. Methodology/Principal Findings: We demonstrated here that AtOFP proteins could function as effective transcriptional repressors in the Arabidopsis protoplast transient expression system. The analysis of loss-of-function alleles of AtOFPs suggested AtOFP genes may have overlapping function in regulating plant growth and development, because none of the single mutants identified, including T-DNA insertion mutants in AtOFP1, AtOFP4, AtOFP8, AtOFP10, AtOFP15 and AtOFP16, displayed any apparent morphological defects. Further, Atofp1 Atofp4 and Atofp15 Atofp16 double mutants still did not differ significantly from wild-type. On the other hand, plants overexpressing AtOFP genes displayed a number of abnormal phenotypes, which could be categorized into three distinct classes, suggesting that AtOFP genes may also have diverse functions in regulating plant growth and development. Further analysis suggested that AtOFP1 regulates cotyledon development in a postembryonic manner, and global transcript profiling revealed that it suppress the expression of many other genes. Conclusions/Significance: Our results showed that AtOFPs function as transcriptional repressors and they regulate multiple aspects of plant growth and development. These results provided the first overview of a previously unknown transcriptional repressor family, and revealed their possible roles in plant growth and development. C1 [Wang, Shucai] NE Normal Univ, Key Lab Mol Epigenet MOE, Changchun, Peoples R China. [Wang, Shucai] NE Normal Univ, Inst Cytol & Genet, Changchun, Peoples R China. [Chang, Ying] NE Agr Univ, Dept Bot, Haerbin, Peoples R China. [Wang, Shucai; Chang, Ying; Guo, Jianjun; Zeng, Qingning; Chen, Jin-Gui] Univ British Columbia, Dept Bot, Vancouver, BC, Canada. [Zeng, Qingning; Ellis, Brian E.] Univ British Columbia, Michael Smith Labs, Vancouver, BC V5Z 1M9, Canada. [Chen, Jin-Gui] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA. RP Wang, SC (reprint author), NE Normal Univ, Key Lab Mol Epigenet MOE, Changchun, Peoples R China. EM wangshucai@yahoo.com RI Chen, Jin-Gui/A-4773-2011; guo, jianjun/G-6852-2013; Zeng, Qingning/M-2245-2013 OI Chen, Jin-Gui/0000-0002-1752-4201; FU Northeast Normal University; National Natural Science Foundation of China [30870144]; Oak Ridge National Laboratory; U.S. Department of Energy [DE-AC05-00OR22725] FX This research was supported by a startup grant from Northeast Normal University (www.nenu.edu.cn) (S. W.), grant from the National Natural Science Foundation of China (www.nsfc.gov.cn, grant No 30870144) (Y.C.), and the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory (www.ornl.gov/ornlhome/ldrd) (J.-G.C.). Oak Ridge National Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 22 TC 20 Z9 36 U1 3 U2 25 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 23 PY 2011 VL 6 IS 8 AR e23896 DI 10.1371/journal.pone.0023896 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 811YA UT WOS:000294253500036 PM 21886836 ER PT J AU Ma, CZ Han, L Jiang, Z Huang, ZH Feng, J Yao, Y Che, SN AF Ma, Chaozhong Han, Lu Jiang, Zhang Huang, Zhehao Feng, Ji Yao, Yuan Che, Shunai TI Growth of Mesoporous Silica Film with Vertical Channels on Substrate Using Gemini Surfactants SO CHEMISTRY OF MATERIALS LA English DT Article DE gemini surfactant; mesoporous; vertical channels; silica; film ID POROUS ALUMINA MEMBRANE; THIN-FILMS; MESOCHANNELS; ARRAYS; PHASE; MESOSTRUCTURE; ALIGNMENT C1 [Ma, Chaozhong; Han, Lu; Huang, Zhehao; Feng, Ji; Yao, Yuan; Che, Shunai] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China. [Jiang, Zhang] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Yao, Y (reprint author), Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, 800 Dongchuan Rd, Shanghai 200240, Peoples R China. EM yaoyuan@sjtu.edu.cn; chesa@sjtu.edu.cn RI Jiang, Zhang/A-3297-2012; Han, Lu/E-7882-2013 OI Jiang, Zhang/0000-0003-3503-8909; FU National Natural Science Foundation of China [20821140537]; 973 project of China [2009CB930403]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX We acknowledge the support of the National Natural Science Foundation of China (Grant 20821140537) and the 973 project (2009CB930403) of China. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357. We also thank Dr. Lilin He for his kindly help. NR 40 TC 19 Z9 19 U1 3 U2 46 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD AUG 23 PY 2011 VL 23 IS 16 BP 3583 EP 3586 DI 10.1021/cm201356n PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 805WE UT WOS:000293758900001 ER PT J AU Jarvis, KA Deng, ZQ Allard, LF Manthiram, A Ferreira, PJ AF Jarvis, Karalee A. Deng, Zengqiang Allard, Lawrence F. Manthiram, Arumugam Ferreira, Paulo J. TI Atomic Structure of a Lithium-Rich Layered Oxide Material for Lithium-Ion Batteries: Evidence of a Solid Solution SO CHEMISTRY OF MATERIALS LA English DT Article DE Li-ion batteries; nanostructures; characterization tools ID ELECTRON-DIFFRACTION; LOCAL-STRUCTURE; MICROSCOPY; LI2MNO3; STEM AB Li[Li(0.2)Ni(0.2)Mn(0.6)]O(2), which is a cathode material for Li-ion batteries with enhanced capacity, has been examined, for the first time, with a combination of aberration-corrected scanning transmission electron microscopy (STEM), STEM computer simulations, and diffraction scanning transmission electron microscopy (D-STEM). These techniques, in combination with X-ray diffraction (XRD) and conventional electron diffraction (ED), indicate that this material is composed of a solid solution with C2/m monoclinic symmetry and multiple planar defects. In addition, we show that XRD and ED alone can give misleading information and cannot resolve the structure of these materials without the additional use of the aforementioned techniques. C1 [Jarvis, Karalee A.; Deng, Zengqiang; Manthiram, Arumugam; Ferreira, Paulo J.] Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA. [Allard, Lawrence F.] Oak Ridge Natl Lab, High Temp Mat Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Ferreira, PJ (reprint author), Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA. EM ferreira@mail.utexas.edu FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001091]; U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy FX This material is based on work supported as part of the program, "Understanding Charge Separation and Transfer at Interfaces in Energy Materials (EFRC:CST)", an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences (under Award No. DE-SC0001091). Microscopy research at the Oak Ridge National Laboratory's High Temperature Materials Laboratory was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program. We gratefully acknowledge the assistance of Dr. Ji-Ping Zhou with D-STEM set up and Jacob Warneke with technical assistance for STEM simulations. NR 27 TC 196 Z9 201 U1 25 U2 223 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD AUG 23 PY 2011 VL 23 IS 16 BP 3614 EP 3621 DI 10.1021/cm200831c PG 8 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 805WE UT WOS:000293758900007 ER PT J AU Gaur, S Haynes, DJ Spivey, JJ AF Gaur, Sarthak Haynes, Daniel J. Spivey, James J. TI Rh, Ni, and Ca substituted pyrochlore catalysts for dry reforming of methane SO APPLIED CATALYSIS A-GENERAL LA English DT Article DE Pyrochlores; CO(2) reforming of methane; Ni catalyst; Rh catalyst ID X-RAY-DIFFRACTION; SYNTHESIS GAS; CARBON-DIOXIDE; PARTIAL OXIDATION; STANNATE PYROCHLORE; A(2)B(2)O(7) PYROCHLORES; SURFACE CHARACTERIZATION; MAGNESIUM ALUMINATE; NICKEL-CATALYSTS; IN-SITU AB Dry reforming of methane (DRM) has been widely investigated, with most studies showing rapid deactivation due to carbon deposition. This suggests a need to develop catalysts that limit carbon formation while avoiding structural changes at the elevated temperatures typical of this reaction. Here, we report CO(2) reforming of methane on four pyrochlore catalysts. First, rhodium was partially substituted for Zr in lanthanum zirconate (La(2)Zr(2)O(7)) to give La(2)Zr(2-x)Rh(x)O(7-delta) (LRZ, x = 0.112, 2 wt% Rh) pyrochlore. A second pyrochlore catalyst was synthesized in which Ca was further substituted into the La-site to give La(1.95)Ca(0.05)Zr(2-x)Rh(x)O(7-delta) (LCRZ, x = 0.055, 1 wt% Rh). This was done to compare the effect of Ca substitution on the La site along with Rh substitution on Zr site. A third catalyst was synthesized where Ni was substituted in the Zr-site to give La(2)Zr(2-x)Ni(x)O(7-delta) (LNZ, x = 0.112, 1 wt% Ni). A fourth catalyst, containing no catalytically active metal, La(1.97)Sr(0.03)Zr(2)O(7-delta) (LSZ), was synthesized to provide a direct comparison to the substituted pyrochlores. Effects of substitution and kinetic measurements were examined for dry reforming of methane in a fixed-bed reactor. XRD results prior to reaction showed that all the pyrochlore catalysts had a cubic unit-cell lattice. Results from XPS suggested that there were two oxidic phases (RhO(2) and Rh(2)O(3)) in Rh-substituted LRZ and LCRZ and two phases (NiO and Ni(2)O(3)) present in Ni substituted LNZ. TPR of the catalysts confirmed the presence of two reducible Rh species in LCRZ and LRZ, and four reducible Ni species in LNZ. Textural measurements revealed that among the active catalysts, LCRZ had the highest BET surface area (10.0 m(2)/g) and pore volume (0.10 cm(3)/g). Temperature programmed surface reaction (TPSR) tests indicated different light-off curves for different catalysts, with LCRZ being the most active by this measure. Steady state tests at 750 degrees C using an equimolar reactant feed for 450 min showed that the Ni-based pyrochlore (LNZ) deactivated rapidly. LCRZ and LRZ showed similar activity, however, LCRZ showed lower carbon built-up. XRD of the spent catalysts showed that the pyrochlore structure was unchanged during reaction for all catalysts. Carbon deposited on catalyst surface during reaction was characterized by TPO. The Ni-based pyrochlore showed higher carbon deposition (1.4 g/g(cat.)) than either LCRZ (0.26 g/g(cat.)) or LRZ (0.44 g/g(cat.)). These results suggested that Rh substituted into the pyrochlore was more active and selective for synthesis gas compared to a directly comparable atomic loading of Ni. In addition, the replacement of Ca(2+) for La(3+) may provide improved oxygen mobility of the catalyst (through the introduction of lattice oxygen defects) resulting in the oxidation of carbonaceous species deposited on the active sites on the catalyst during the reaction. Substitution of metals into the crystal lattice might have also lowered the bond energy of La-O and Zr-O lattice bonds resulting in the release of oxygen from the lattice, which probably oxidized surface carbon thus slowing down carbon accumulation. (C) 2011 Elsevier B.V. All rights reserved. C1 [Gaur, Sarthak; Spivey, James J.] Louisiana State Univ, Gordon A & Mary Cain Dept Chem Engn, Baton Rouge, LA 70803 USA. [Gaur, Sarthak; Spivey, James J.] CALCD, Baton Rouge, LA 70803 USA. [Haynes, Daniel J.] US DOE, Natl Energy Technol Lab, Morgantown, WV 26505 USA. RP Spivey, JJ (reprint author), Louisiana State Univ, Gordon A & Mary Cain Dept Chem Engn, 110 S Stadium Dr, Baton Rouge, LA 70803 USA. EM jjspivey@lsu.edu FU Center for Atomic Level Catalyst Design, an Energy Frontier Research Center; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001058] FX This material is based upon work supported as part of the Center for Atomic Level Catalyst Design, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001058. NR 76 TC 43 Z9 43 U1 5 U2 59 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0926-860X J9 APPL CATAL A-GEN JI Appl. Catal. A-Gen. PD AUG 22 PY 2011 VL 403 IS 1-2 BP 142 EP 151 DI 10.1016/j.apcata.2011.06.025 PG 10 WC Chemistry, Physical; Environmental Sciences SC Chemistry; Environmental Sciences & Ecology GA 823TM UT WOS:000295149400018 ER PT J AU Escudero-Escribano, M Michoff, MEZ Leiva, EPM Markovic, NM Gutierrez, C Cuesta, A AF Escudero-Escribano, Maria Zoloff Michoff, Martin E. Leiva, Ezequiel P. M. Markovic, Nenad M. Gutierrez, Claudio Cuesta, Angel TI Quantitative Study of Non-Covalent Interactions at the Electrode-Electrolyte Interface Using Cyanide-Modified Pt(111) Electrodes SO CHEMPHYSCHEM LA English DT Article DE density functional calculations; electrochemical double layer; non-covalent interactions; platinum; scanning probe microscopy ID SCANNING-TUNNELING-MICROSCOPY; SINGLE-CRYSTAL ELECTRODES; INFRARED-SPECTROSCOPY; CARBON-MONOXIDE; METAL-CATIONS; IN-SITU; PLATINUM; SURFACE; ELECTROOXIDATION; ADSORPTION C1 [Escudero-Escribano, Maria; Gutierrez, Claudio; Cuesta, Angel] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain. [Zoloff Michoff, Martin E.; Leiva, Ezequiel P. M.] Univ Nacl Cordoba, Fac Ciencias Quim, RA-5000 Cordoba, Argentina. [Markovic, Nenad M.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Cuesta, A (reprint author), CSIC, Inst Quim Fis Rocasolano, C Serrano 119, E-28006 Madrid, Spain. EM a.cuesta@iqfr.csic.es RI Cuesta, Angel/C-7151-2008; Escudero-Escribano, Maria/D-1408-2011; Zoloff Michoff, Martin/J-1714-2014 OI Cuesta, Angel/0000-0003-4243-1848; Escudero-Escribano, Maria/0000-0002-6432-3015; Zoloff Michoff, Martin/0000-0003-3736-4484 FU DGI ( Spanish Ministry of Science and Innovation) [CTQ2009-07017]; Spanish Ministry of Science and Innovation; Madrid City Council; Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences, US Department of Energy [DE-AC03-76SF00098] FX Funding from the DGI ( Spanish Ministry of Science and Innovation) through Project CTQ2009-07017 is gratefully acknowledged. M.E.-E. acknowledges an FPI fellowship from the Spanish Ministry of Science and Innovation and an accommodation grant at the Residencia de Estudiantes from the Madrid City Council. N.M.M. acknowledges the support from the Director, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences, US Department of Energy, under contract No. DE-AC03-76SF00098. NR 22 TC 23 Z9 23 U1 4 U2 33 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1439-4235 J9 CHEMPHYSCHEM JI ChemPhysChem PD AUG 22 PY 2011 VL 12 IS 12 BP 2230 EP 2234 DI 10.1002/cphc.201100327 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 818TN UT WOS:000294778600005 PM 21732522 ER PT J AU Zheng, YQ Tao, J Liu, HY Zeng, J Yu, T Ma, YY Moran, C Wu, LJ Zhu, YM Liu, JY Xia, YN AF Zheng, Yiqun Tao, Jing Liu, Hongyang Zeng, Jie Yu, Taekyung Ma, Yanyun Moran, Christine Wu, Lijun Zhu, Yimei Liu, Jingyue Xia, Younan TI Facile Synthesis of Gold Nanorice Enclosed by High-Index Facets and Its Application for CO Oxidation SO SMALL LA English DT Article ID SHAPE-CONTROLLED SYNTHESIS; SILVER NANOSTRUCTURES; REPLACEMENT REACTION; NANOPARTICLES; NANOCRYSTALS; NANORODS; GROWTH; SURFACTANT; METAL; BIPYRAMIDS C1 [Zeng, Jie; Yu, Taekyung; Ma, Yanyun; Moran, Christine; Xia, Younan] Washington Univ, Dept Biomed Engn, St Louis, MO 63130 USA. [Zheng, Yiqun] Washington Univ, Dept Chem, St Louis, MO 63130 USA. [Tao, Jing; Wu, Lijun; Zhu, Yimei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Liu, Hongyang; Liu, Jingyue] Univ Missouri, Ctr Nanosci, St Louis, MO 63131 USA. [Liu, Hongyang; Liu, Jingyue] Univ Missouri, Dept Chem & Biochem, St Louis, MO 63131 USA. RP Xia, YN (reprint author), Washington Univ, Dept Biomed Engn, St Louis, MO 63130 USA. EM xia@biomed.wustl.edu RI Zeng, Jie/H-1327-2011; Zheng, Yiqun/F-5203-2011; Zheng, Yiqun/E-3793-2013; Xia, Younan/E-8499-2011; Ma, Yanyun/S-8956-2016 OI Zeng, Jie/0000-0002-8812-0298; FU NSF [DMR-0804088, ECS-0335765]; Washington University in St. Louis; University of Missouri-St. Louis; US DOE/BES [DE-AC02-98CH10886] FX This work was supported in part by a research grant from the NSF (DMR-0804088) and startup funds from Washington University in St. Louis. H.L. and J.L. were supported by the University of Missouri-St. Louis. Part of the research was performed at the Nano Research Facility, a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the NSF under award No. ECS-0335765. Research at Brookhaven National Laboratory was sponsored by the US DOE/BES under Contract No. DE-AC02-98CH10886. NR 37 TC 31 Z9 32 U1 8 U2 76 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1613-6810 J9 SMALL JI Small PD AUG 22 PY 2011 VL 7 IS 16 BP 2307 EP 2312 DI 10.1002/smll.201100106 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 818DG UT WOS:000294729900005 PM 21630441 ER PT J AU Chen, AQ DePrince, AE Demortiere, A Joshi-Imre, A Shevchenko, EV Gray, SK Welp, U Vlasko-Vlasov, VK AF Chen, Aiqing DePrince, A. Eugene, III Demortiere, Arnaud Joshi-Imre, Alexandra Shevchenko, Elena V. Gray, Stephen K. Welp, Ulrich Vlasko-Vlasov, Vitalii K. TI Self-Assembled Large Au Nanoparticle Arrays with Regular Hot Spots for SERS SO SMALL LA English DT Article ID RAMAN EXCITATION SPECTROSCOPY; CDSE QUANTUM DOTS; METAL NANOPARTICLES; SEMICONDUCTOR NANOCRYSTALS; ENHANCED LUMINESCENCE; PATTERN-FORMATION; SIZE; BENZENETHIOL; SCATTERING; MECHANISM AB The cost-effective self-assembly of 80 nm Au nanoparticles (NPs) into large-domain, hexagonally close-packed arrays for high-sensitivity and high-fidelity surface-enhanced Raman spectroscopy (SERS) is demonstrated. These arrays exhibit specific optical resonances due to strong interparticle coupling, which are well reproduced by finite-difference time-domain (FDTD) simulations. The gaps between NPs form a regular lattice of hot spots that enable a large amplification of both photoluminescence and Raman signals. At smaller wavelengths the hot spots are extended away from the minimum-gap positions, which allows SERS of larger analytes that do not fit into small gaps. Using CdSe quantum dots (QDs) a 3-5 times larger photoluminescence enhancement than previously reported is experimentally demonstrated and an unambiguous estimate of the electromagnetic SERS enhancement factor of approximate to 10(4) is obtained by direct scanning electron microscopy imaging of QDs responsible for the Raman signal. Much stronger enhancement of approximate to 10(8) is obtained at larger wavelengths for benzenethiol molecules penetrating the NP gaps. C1 [DePrince, A. Eugene, III; Demortiere, Arnaud; Joshi-Imre, Alexandra; Shevchenko, Elena V.; Gray, Stephen K.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Chen, Aiqing; Welp, Ulrich; Vlasko-Vlasov, Vitalii K.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Chen, AQ (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM aiqingchen@anl.gov; vlasko-vlasov@anl.gov RI Joshi-Imre, Alexandra/A-2912-2010 OI Joshi-Imre, Alexandra/0000-0002-4271-1623 FU US Department of Energy Office of Science Laboratory [DE-AC02-06CH11357] FX The submitted manuscript was created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a US Department of Energy Office of Science Laboratory, is operated under Contract No. DE-AC02-06CH11357. NR 31 TC 59 Z9 59 U1 6 U2 115 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 1613-6810 J9 SMALL JI Small PD AUG 22 PY 2011 VL 7 IS 16 BP 2365 EP 2371 DI 10.1002/smll.201100686 PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 818DG UT WOS:000294729900013 PM 21630447 ER PT J AU Hao, SJ Jiang, DQ Cui, LS Wang, YD Shi, XB Nie, ZH Brown, DE Ren, Y AF Hao, S. J. Jiang, D. Q. Cui, L. S. Wang, Y. D. Shi, X. B. Nie, Z. H. Brown, D. E. Ren, Y. TI Phase-stress partition and stress-induced martensitic transformation in NbTi/NiTi nanocomposite SO APPLIED PHYSICS LETTERS LA English DT Article ID NITI-TIC COMPOSITES; NEUTRON-DIFFRACTION; RESIDUAL-STRESS AB The phase-stress partition and stress-induced martensitic transformation in a NbTi/NiTi nanocomposite were investigated by employing in situ synchrotron x-ray diffraction during tensile cycling. The phase-stress partition behavior in the nanocomposite is significantly different from that previously reported in the metal-matrix composites. Beyond the initial elastic deformation, the stress carried by the NbTi nanowires increased significantly with increasing macroscopic strain, while the stress taken by the NiTi matrix decreased gradually. We also found that the stress-induced martensitic transformation of the NiTi matrix still proceeded even though the matrix carried decreasing stress rather than constant or increasing stress well known in binary NiTi alloys. (C) 2011 American Institute of Physics. [doi:10.1063/1.3629768] C1 [Hao, S. J.; Jiang, D. Q.; Cui, L. S.; Shi, X. B.] China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China. [Wang, Y. D.; Nie, Z. H.] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China. [Brown, D. E.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Ren, Y.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. RP Cui, LS (reprint author), 18 Fuxue Rd, Beijing 102249, Peoples R China. EM lscui@cup.edu.cn RI Nie, Zhihua/G-9459-2013; ran, shi/G-9380-2013; wang, yandong/G-9404-2013; Jiang, Daqiang /G-5511-2014 OI Nie, Zhihua/0000-0002-2533-933X; FU National Natural Science Foundation of China (NSFC) [50971133, 51001119]; Institute for Nano Science, Engineering, and Technology (INSET) of Northern Illinois University; US Department of Energy, Office of Science, and Office of Basic Energy Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work was supported by the National Natural Science Foundation of China (NSFC) (Grant Nos. 50971133 and 51001119) and the Institute for Nano Science, Engineering, and Technology (INSET) of Northern Illinois University. The use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, and Office of Basic Energy Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 13 TC 14 Z9 14 U1 0 U2 28 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 22 PY 2011 VL 99 IS 8 AR 084103 DI 10.1063/1.3629768 PG 3 WC Physics, Applied SC Physics GA 813ID UT WOS:000294359100092 ER PT J AU MacArthur, K Shi, B Conley, R Macrander, AT AF MacArthur, Kimberly Shi, Bing Conley, Ray Macrander, Albert T. TI Periodic variation of stress in sputter deposited Si/WSi2 multilayers SO APPLIED PHYSICS LETTERS LA English DT Article ID ADATOMS; SILICON; SI(111); SURFACE; FILMS AB A tension increment after sputter deposition of 1 nm of WSi2 onto sputtered Si was observed at low Ar gas pressures. Wafer curvature data on multilayers were found to have a periodic variation corresponding to the multilayer period, and this permitted statistical analyses to improve the sensitivity to small stresses. The observation of tension instead of compression in the initial stage of growth is reported, and a model invoking surface rearrangement is invoked. The data also bear on an unusual surface smoothing phenomena for sputtered Si surfaces caused by the sputter deposition of WSi2. We furthermore report that for low Ar pressures the Si layers are the predominant source of built-up stress. (C) 2011 American Institute of Physics. [doi:10.1063/1.3628242] C1 [MacArthur, Kimberly; Shi, Bing; Conley, Ray; Macrander, Albert T.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Conley, Ray] Brookhaven Natl Lab, NSLS 2, Upton, NY 11973 USA. RP Macrander, AT (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM macrander@aps.anl.gov RI Conley, Ray/C-2622-2013 FU U.S. Dept. of Energy, Office of Science [DE-AC-02-06CH11357]; Northern Illinois University FX We acknowledge the support for K. MacArthur provided by Professor A. Genis at Northern Illinois University. We thank Professor R. Headrick at the University of Vermont for comments. This work was supported by the U.S. Dept. of Energy, Office of Science, under Contract No. DE-AC-02-06CH11357. NR 17 TC 9 Z9 9 U1 0 U2 15 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 22 PY 2011 VL 99 IS 8 AR 081905 DI 10.1063/1.3628242 PG 3 WC Physics, Applied SC Physics GA 813ID UT WOS:000294359100017 ER PT J AU Matthews, MJ Petitpas, G Aceves, SM AF Matthews, Manyalibo J. Petitpas, Guillaume Aceves, Salvador M. TI A study of spin isomer conversion kinetics in supercritical fluid hydrogen for cyrogenic fuel storage technologies SO APPLIED PHYSICS LETTERS LA English DT Article ID SOLID HYDROGEN; PRESSURE AB A detailed kinetic study of para-ortho hydrogen conversion under supercritical conditions using rotational Raman scattering is presented. Isochoric measurements of initially low ortho concentrations over temperatures 32 < T < 280 K and densities 0.014 < rho < 0.060 g/cm(3) were used to derive kinetic rate constants k(rho, T) by solving an autocatalytic kinetic rate equation. At low ortho concentrations and T < 100 K, k is found to be similar to 2x higher than previous results based on thermal conductivity measurements, decreasing weakly with temperature, similar to Wigner's original paramagnetic theory. Accurate modeling of k(rho, T) is critical in predicting cryogenic hydrogen fuel tank dormancy performance for hydrogen-power vehicles. (C) 2011 American Institute of Physics. [doi:10.1063/1.3628453] C1 [Matthews, Manyalibo J.; Petitpas, Guillaume; Aceves, Salvador M.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Matthews, MJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM matthews11@llnl.gov RI aceves, salvador/G-9052-2011 OI aceves, salvador/0000-0001-5687-7256 FU U.S. Department of Energy [DE-AC52-07NA27344] FX This work was supported by the U.S. Department of Energy (Contract No. DE-AC52-07NA27344). NR 17 TC 5 Z9 5 U1 1 U2 11 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 22 PY 2011 VL 99 IS 8 AR 081906 DI 10.1063/1.3628453 PG 3 WC Physics, Applied SC Physics GA 813ID UT WOS:000294359100018 ER PT J AU Qiang, J Wu, JH AF Qiang, Ji Wu, Juhao TI Generation of multi-color attosecond x-ray radiation through modulation compression SO APPLIED PHYSICS LETTERS LA English DT Article AB In this paper, we propose a scheme to generate tunable multi-color attosecond coherent x-ray radiation. This scheme uses a modulation compression method to generate a multi-spike prebunched kilo-ampere peak current electron beam from a few tens ampere electron beam out of a linac. Such a beam transporting through a series of undulator radiators and bunch compressors generates multi-color coherent x-ray radiation. As an illustration, we present an example to generate two attosecond pulses with 2.2 nm and 3 nm coherent x-ray radiation wavelength and more than 200 MW peak power using a 50 A 200 nm laser seeded electron beam. (C) 2011 American Institute of Physics. [doi:10.1063/1.3629769] C1 [Qiang, Ji] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Wu, Juhao] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. RP Qiang, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM jqiang@lbl.gov FU U.S. Department of Energy [DE-AC02-05CH11231, DE-AC02-76SF00515] FX We would like to thank Dr. J. Corlett, Dr. J. Wurtele, and Dr. A. Zholents for helpful discussions. This research used computer resources at the National Energy Research Scientific Computing Center. This work was supported by the U.S. Department of Energy under Contract Nos. DE-AC02-05CH11231 and DE-AC02-76SF00515. NR 10 TC 5 Z9 5 U1 3 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 22 PY 2011 VL 99 IS 8 AR 081101 DI 10.1063/1.3629769 PG 3 WC Physics, Applied SC Physics GA 813ID UT WOS:000294359100001 ER PT J AU Paudel, TR Lany, S d'Avezac, M Zunger, A Perry, NH Nagaraja, AR Mason, TO Bettinger, JS Shi, YZ Toney, MF AF Paudel, Tula R. Lany, Stephan d'Avezac, Mayeul Zunger, Alex Perry, Nicola H. Nagaraja, Arpun R. Mason, Thomas O. Bettinger, Joanna S. Shi, Yezhou Toney, Michael F. TI Asymmetric cation nonstoichiometry in spinels: Site occupancy in Co2ZnO4 and Rh2ZnO4 SO PHYSICAL REVIEW B LA English DT Article ID WAVE BASIS-SET; THERMODYNAMIC ASSESSMENT; DEFECT STRUCTURE; COBALT OXIDE; SYSTEM; SEMICONDUCTORS; DIFFRACTION; STABILITY; DIFFUSION; SPECTRA AB Two cations A and B in A(2)BO(4) spinels appear in precise 2:1 Daltonian ratio ("line compounds") only at very low temperature. More typically, at finite temperature, they tend to become either A rich or B rich. Here we survey the experimentally observed stoichiometry asymmetries and describe the first-principles framework for calculating these. Defect calculations based on first principles are used to calculate the enthalpies of substitution of A atom Delta H(A(Td)) and B atom Delta H(B-Oh) and determine their site occupancies leading to (non)-stoichiometry. In Co2ZnO4, the result of the calculation for site occupancy compares well with that measured via anomalous x-ray diffraction. Further, the calculated phase boundary also compares well with that measured via Rietveld refinement of x-ray diffraction data on bulk ceramic sintered samples of Co2ZnO4 and Rh2ZnO4. These results show that Co2ZnO4 is heavily Co nonstoichiometric above 500 degrees C, whereas Rh2ZnO4 is slightly Zn nonstoichiometric. We found that, in general, the calculated Delta H(A(Td)) is smaller than Delta H(B-Oh), if the A-rich competing phase is isostructural with the A(2)BO(4) host, for example, A(2)AO(4), whereas B-rich competing phase is not, for example, BO. This observation is used to qualitatively explain nonstoichiometry and solid solutions observed in other spinels. C1 [Paudel, Tula R.; Lany, Stephan; d'Avezac, Mayeul; Zunger, Alex] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Perry, Nicola H.; Nagaraja, Arpun R.; Mason, Thomas O.] Northwestern Univ, Evanston, IL 60208 USA. [Bettinger, Joanna S.; Shi, Yezhou; Toney, Michael F.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Shi, Yezhou] Stanford Univ, Stanford, CA 94305 USA. RP Paudel, TR (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. RI Mason, Thomas/B-7528-2009; Zunger, Alex/A-6733-2013; OI d'Avezac, Mayeul/0000-0002-2615-8397; Lany, Stephan/0000-0002-8127-8885 FU US Department of Energy, Office of Science, Office of Basic Energy Sciences; National Science Foundation, Materials Research Center of Northwestern University [DMR-0520513] FX This work was supported through the Center for Inverse Design, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences and made use of the J.B. Cohen X-Ray Diffraction Facility supported by the MRSEC program of the National Science Foundation (Grant No. DMR-0520513) at the Materials Research Center of Northwestern University. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a national user facility operated by Stanford University on behalf of the US Department of Energy, Office of Basic Energy Sciences. Tula Paudel thanks Andrey Zatukeyav and John Perkins for invaluable suggestions and useful discussions. NR 59 TC 13 Z9 13 U1 2 U2 26 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 22 PY 2011 VL 84 IS 6 AR 064109 DI 10.1103/PhysRevB.84.064109 PG 11 WC Physics, Condensed Matter SC Physics GA 810NI UT WOS:000294131600004 ER PT J AU Prommapan, P Tanatar, MA Lee, B Khim, S Kim, KH Prozorov, R AF Prommapan, Plengchart Tanatar, Makariy A. Lee, Bumsung Khim, Seunghyun Kim, Kee Hoon Prozorov, Ruslan TI Magnetic-field-dependent pinning potential in LiFeAs superconductor from its Campbell penetration depth SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTORS; II SUPERCONDUCTORS; FLUX-CREEP; LATTICE; STATE AB A theoretical critical current density j(c)(T, H), as opposite to commonly measured relaxed persistent (Bean) current j(B), was extracted from the Campbell penetration depth lambda(C)(T, H) measured in single crystals of LiFeAs. The effective pinning potential is slightly nonparabolic, which follows from the magnetic-field-dependent Labusch parameter alpha. At the equilibrium (upon field cooling), alpha(H) is nonmonotonic, but it is monotonic at a finite gradient of the vortex density. Combined with the observation of a fishtail magnetization in standard dc measurements, this result implies that the fishtail appears as a result of magnetic relaxation. The functional form of M(H) curves is determined by the nonmonotonic pinning potential, implying the importance of vortex collective effects. The values of j(c)(2 K) similar or equal to 1.22 x 10(6) A/cm(2) provide an upper theoretical estimate of the current-carrying capability of LiFeAs. Overall, vortex behavior of almost isotropic fully gapped LiFeAs is very similar to highly anisotropic d-wave cuprate superconductors, the similarity that requires further studies in order to understand unconventional superconductivity in cuprates and pnictides. C1 [Prommapan, Plengchart; Tanatar, Makariy A.; Prozorov, Ruslan] Ames Lab, Ames, IA 50011 USA. [Prommapan, Plengchart; Prozorov, Ruslan] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Lee, Bumsung; Khim, Seunghyun; Kim, Kee Hoon] Seoul Natl Univ, CeNSCMR, Dept Phys & Astron, Seoul 151747, South Korea. RP Prommapan, P (reprint author), Ames Lab, Ames, IA 50011 USA. EM prozorov@ameslab.gov RI Prozorov, Ruslan/A-2487-2008 OI Prozorov, Ruslan/0000-0002-8088-6096 FU US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; National Creative Research Initiative [2010-0018300]; Alfred P. Sloan Foundation FX We thank Kees van der Beek, Marcin Konczykowski, and Alexey Koshelev for useful discussions. The work at Ames Laboratory was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358. Work at SNU was supported by the National Creative Research Initiative (Grant No. 2010-0018300). R.P. acknowledges support from the Alfred P. Sloan Foundation. NR 32 TC 6 Z9 6 U1 1 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 22 PY 2011 VL 84 IS 6 AR 060509 DI 10.1103/PhysRevB.84.060509 PG 4 WC Physics, Condensed Matter SC Physics GA 810NI UT WOS:000294131600003 ER PT J AU Walter, AL Bostwick, A Jeon, KJ Speck, F Ostler, M Seyller, T Moreschini, L Chang, YJ Polini, M Asgari, R MacDonald, AH Horn, K Rotenberg, E AF Walter, Andrew L. Bostwick, Aaron Jeon, Ki-Joon Speck, Florian Ostler, Markus Seyller, Thomas Moreschini, Luca Chang, Young Jun Polini, Marco Asgari, Reza MacDonald, Allan H. Horn, Karsten Rotenberg, Eli TI Effective screening and the plasmaron bands in graphene SO PHYSICAL REVIEW B LA English DT Article ID EPITAXIAL GRAPHENE; GRAPHITE; SIC(0001); LAYERS AB Electron-plasmon coupling in graphene has been shown recently to give rise to a "plasmaron" quasiparticle excitation. The strength of this coupling has been predicted to depend on the effective screening, which in turn is expected to depend on the dielectric environment of the graphene sheet. Here we compare the strength of environmental screening for graphene on four different substrates by evaluating the separation of the plasmaron bands from the hole bands using angle-resolved photoemission spectroscopy. Comparison with G(0)W-random phase approximation predictions are used to determine the effective dielectric constant of the underlying substrate layer. We also show that plasmaron and electronic properties of graphene can be independently manipulated, an important aspect of a possible use in "plasmaronic" devices. C1 [Walter, Andrew L.; Bostwick, Aaron; Moreschini, Luca; Chang, Young Jun; Rotenberg, Eli] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source ALS, Berkeley, CA 94720 USA. [Walter, Andrew L.; Chang, Young Jun; Horn, Karsten] Max Planck Gesell, Fritz Haber Inst, Dept Mol Phys, D-14195 Berlin, Germany. [Jeon, Ki-Joon] Univ Ulsan, Sch Elect Engn, Ulsan 680749, South Korea. [Speck, Florian; Ostler, Markus; Seyller, Thomas] Univ Erlangen Nurnberg, Lehrstuhl Tech Phys, D-91058 Erlangen, Germany. [Polini, Marco] Scuola Normale Super Pisa, NEST, Ist Nanosci, CNR, I-56126 Pisa, Italy. [Asgari, Reza] Inst Res Fundamental Sci IPM, Sch Phys, Tehran 19395, Iran. [MacDonald, Allan H.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. RP Walter, AL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source ALS, Berkeley, CA 94720 USA. EM alwalter@lbl.gov RI Seyller, Thomas/F-8410-2011; Walter, Andrew/B-9235-2011; Bostwick, Aaron/E-8549-2010; Polini, Marco/L-3419-2013; Rotenberg, Eli/B-3700-2009; Chang, Young Jun/N-3440-2014 OI Seyller, Thomas/0000-0002-4953-2142; Rotenberg, Eli/0000-0002-3979-8844; Chang, Young Jun/0000-0001-5538-0643 FU Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]; ESF; DFG; Max Planck Society FX The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. Work in Erlangen was supported by the ESF and the DFG through the EUROCORES program EURO-GRAPHENE. A. W. acknowledges support by the Max Planck Society. NR 39 TC 51 Z9 51 U1 5 U2 42 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 22 PY 2011 VL 84 IS 8 AR 085410 DI 10.1103/PhysRevB.84.085410 PG 8 WC Physics, Condensed Matter SC Physics GA 810NS UT WOS:000294132600017 ER PT J AU Singh, P Nag, S Singh, AK Ragnarsson, I Hubel, H Al-Khatib, A Bringel, P Engelhardt, C Neusser-Neffgen, A Hagemann, GB Hansen, CR Herskind, B Sletten, G Bracco, A Benzoni, G Camera, F Fallon, P Clark, RM Carpenter, MP Janssens, RVF Khoo, TL Lauritsen, T Chowdhury, P Amro, H AF Singh, Purnima Nag, Somnath Singh, A. K. Ragnarsson, I. Huebel, H. Al-Khatib, A. Bringel, P. Engelhardt, C. Neusser-Neffgen, A. Hagemann, G. B. Hansen, C. R. Herskind, B. Sletten, G. Bracco, A. Benzoni, G. Camera, F. Fallon, P. Clark, R. M. Carpenter, M. P. Janssens, R. V. F. Khoo, T. L. Lauritsen, T. Chowdhury, P. Amro, H. TI Highly deformed high-spin band in I-125 SO PHYSICAL REVIEW C LA English DT Article ID ROTATIONAL BANDS; SUPERDEFORMED BANDS; CLOSED-SHELL; TERMINATION; COLLECTIVITY; COEXISTENCE; REGION; STATES AB High-spin states in I-125 have been investigated using the reaction Se-82(Ca-48, p4n) at a beam energy of 200 MeV and gamma-ray coincidence events were detected using the Gammasphere spectrometer. A deformed rotational band, extending up to I-pi = 95/2(-), was observed for the first time in a heavier odd-A iodine nucleus. The characteristics of the band are very similar to those of the highly deformed bands observed recently in neighboring nuclei and it is essentially identical to one of the previously known bands in Xe-126. The experimental results are compared to cranked Nilsson-Strutinsky calculations and possible configurations for the band are discussed. C1 [Singh, Purnima; Nag, Somnath; Singh, A. K.] Indian Inst Technol, Dept Phys & Meteorol, IN-721302 Kharagpur, W Bengal, India. [Ragnarsson, I.] Lund Inst Technol, Dept Math Phys, S-221 Lund, Sweden. [Huebel, H.; Al-Khatib, A.; Bringel, P.; Engelhardt, C.; Neusser-Neffgen, A.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany. [Hagemann, G. B.; Hansen, C. R.; Herskind, B.; Sletten, G.] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark. [Bracco, A.; Benzoni, G.; Camera, F.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy. [Bracco, A.; Benzoni, G.; Camera, F.] INFN, Sez Milano, I-20133 Milan, Italy. [Fallon, P.; Clark, R. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Carpenter, M. P.; Janssens, R. V. F.; Khoo, T. L.; Lauritsen, T.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Chowdhury, P.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA. [Amro, H.] Univ Michigan, Dept Radiat Oncol, Ann Arbor, MI 48109 USA. RP Singh, P (reprint author), Indian Inst Technol, Dept Phys & Meteorol, IN-721302 Kharagpur, W Bengal, India. RI Carpenter, Michael/E-4287-2015; OI Carpenter, Michael/0000-0002-3237-5734; Camera, Franco/0000-0003-1731-4834; benzoni, giovanna/0000-0002-7938-0338 FU DST, India [SR/S2/HEP-09/2005]; CSIR, India [09/081(0704)/2009-EMR-I]; Swedish Science Research Council; German BMBF [06 BN 109]; Danish FNU Council for Natural Sciences; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357, DE-FG02-94ER40848, DE-AC03-76SF00098] FX The authors thank the ATLAS and Gammasphere operations staff and are grateful to J. P. Greene for preparing the target. Purnima Singh acknowledges financial assistance from the DST, India, and Somnath Nag the support from CSIR, India, under Contract No. 09/081(0704)/2009-EMR-I. The work was supported by DST, India, under Project No. SR/S2/HEP-09/2005, by the Swedish Science Research Council, by the German BMBF under Contract No. 06 BN 109, by the Danish FNU Council for Natural Sciences, and by the US Department of Energy, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357, No. DE-FG02-94ER40848, and No. DE-AC03-76SF00098. NR 32 TC 8 Z9 8 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD AUG 22 PY 2011 VL 84 IS 2 AR 024316 DI 10.1103/PhysRevC.84.024316 PG 7 WC Physics, Nuclear SC Physics GA 810NV UT WOS:000294132900002 ER PT J AU Boglione, M Melis, S Prokudin, A AF Boglione, M. Melis, S. Prokudin, A. TI Partonic transverse motion in unpolarized semi-inclusive deep inelastic scattering processes SO PHYSICAL REVIEW D LA English DT Article ID AZIMUTHAL DEPENDENCE; CROSS-SECTION; LEPTOPRODUCTION; DISTRIBUTIONS; HADRONS AB We analyze the role of partonic transverse motion in unpolarized semi-inclusive deep inelastic scattering processes. Imposing appropriate kinematical conditions, we find some constraints which fix an upper limit to the range of allowed k(perpendicular to) values. We show that, applying these additional requirements on the partonic kinematics, we obtain different results with respect to the usual phenomenological approach based on the Gaussian smearing with analytical integration over an unlimited range of k(perpendicular to) values. These variations are particularly interesting for some observables, like the < cos phi(h)> azimuthal modulation of the unpolarized semi-inclusive deep inelastic scattering cross section or the average transverse momentum of the final, detected hadron. C1 [Boglione, M.] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy. [Boglione, M.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Melis, S.] European Ctr Theoret Studies Nucl Phys & Related, I-38123 Villazzano, Trento, Italy. [Prokudin, A.] Jefferson Lab, Newport News, VA 23606 USA. RP Boglione, M (reprint author), Univ Turin, Dipartimento Fis Teor, Via P Giuria 1, I-10125 Turin, Italy. OI Melis, Stefano/0000-0001-7316-4346; Boglione, Mariaelena/0000-0002-3647-1731 FU U.S. DOE [DE-AC05-06OR23177] FX We would like to acknowledge useful discussions with M. Anselmino, A. Kotzinian, E. Barone, B. Pasquini, and L. Gamberg. Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. NR 41 TC 15 Z9 15 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 22 PY 2011 VL 84 IS 3 AR 034033 DI 10.1103/PhysRevD.84.034033 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 810OT UT WOS:000294135400005 ER PT J AU Ge, JY Miller, DH Shipsey, IPJ Xin, B Adams, GS Napolitano, J Ecklund, KM Insler, J Muramatsu, H Park, CS Pearson, LJ Thorndike, EH Ricciardi, S Thomas, C Artuso, M Blusk, S Mountain, R Skwarnicki, T Stone, S Zhang, LM Bonvicini, G Cinabro, D Lincoln, A Smith, MJ Zhou, P Zhu, J Naik, P Rademacker, J Asner, DM Edwards, KW Randrianarivony, K Tatishvili, G Briere, RA Vogel, H Onyisi, PUE Rosner, JL Alexander, JP Cassel, DG Das, S Ehrlich, R Gibbons, L Gray, SW Hartill, DL Heltsley, BK Kreinick, DL Kuznetsov, VE Patterson, JR Peterson, D Riley, D Ryd, A Sadoff, AJ Shi, X Sun, WM Yelton, J Rubin, P Lowrey, N Mehrabyan, S Selen, M Wiss, J Libby, J Kornicer, M Mitchell, RE Tarbert, CM Besson, D Pedlar, TK Cronin-Hennessy, D Hietala, J Dobbs, S Metreveli, Z Seth, KK Tomaradze, A Xiao, T Martin, L Powell, A Wilkinson, G AF Ge, J. Y. Miller, D. H. Shipsey, I. P. J. Xin, B. Adams, G. S. Napolitano, J. Ecklund, K. M. Insler, J. Muramatsu, H. Park, C. S. Pearson, L. J. Thorndike, E. H. Ricciardi, S. Thomas, C. Artuso, M. Blusk, S. Mountain, R. Skwarnicki, T. Stone, S. Zhang, L. M. Bonvicini, G. Cinabro, D. Lincoln, A. Smith, M. J. Zhou, P. Zhu, J. Naik, P. Rademacker, J. Asner, D. M. Edwards, K. W. Randrianarivony, K. Tatishvili, G. Briere, R. A. Vogel, H. Onyisi, P. U. E. Rosner, J. L. Alexander, J. P. Cassel, D. G. Das, S. Ehrlich, R. Gibbons, L. Gray, S. W. Hartill, D. L. Heltsley, B. K. Kreinick, D. L. Kuznetsov, V. E. Patterson, J. R. Peterson, D. Riley, D. Ryd, A. Sadoff, A. J. Shi, X. Sun, W. M. Yelton, J. Rubin, P. Lowrey, N. Mehrabyan, S. Selen, M. Wiss, J. Libby, J. Kornicer, M. Mitchell, R. E. Tarbert, C. M. Besson, D. Pedlar, T. K. Cronin-Hennessy, D. Hietala, J. Dobbs, S. Metreveli, Z. Seth, K. K. Tomaradze, A. Xiao, T. Martin, L. Powell, A. Wilkinson, G. CA CLEO Collaboration TI Branching fractions for Y(3S) -> pi(0)h(b) and psi(2S) ->pi(0)h(c) SO PHYSICAL REVIEW D LA English DT Article ID HADRONIC TRANSITIONS; DECAYS AB Using e(+)e(-) collision data corresponding to 5.88 x 10(6)Y(3S) [25.9 x 10(6)psi (2S)] decays and acquired by the CLEO III [ CLEO- c] detectors operating at the Cornell Electron Storage Ring, we study the singlepion transitions from Y(3S)[psi(2S)] to the respective spin-singlet states h(b[c]). Utilizing only the momentum of suitably selected transition-pi(0) candidates, we obtain the upper limit BY(3S) -> pi(0)h(b)) < 1.2 X 10(-3) at 90% confidence level, and measure B(psi(2S) -> (pi(0)h(c)) = (9.0 +/- 1.5 +/- 1.3) x 10(-4). Signal sensitivities are enhanced by excluding very asymmetric pi(0) -> gamma gamma candidates. C1 [Asner, D. M.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Ge, J. Y.; Miller, D. H.; Shipsey, I. P. J.; Xin, B.] Purdue Univ, W Lafayette, IN 47907 USA. [Adams, G. S.; Napolitano, J.] Rensselaer Polytech Inst, Troy, NY 12180 USA. [Ecklund, K. M.] Rice Univ, Houston, TX 77005 USA. [Insler, J.; Muramatsu, H.; Park, C. S.; Pearson, L. J.; Thorndike, E. H.] Univ Rochester, Rochester, NY 14627 USA. [Ricciardi, S.; Thomas, C.] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Thomas, C.; Martin, L.; Powell, A.; Wilkinson, G.] Univ Oxford, Oxford OX1 3RH, England. [Artuso, M.; Blusk, S.; Mountain, R.; Skwarnicki, T.; Stone, S.; Zhang, L. M.] Syracuse Univ, Syracuse, NY 13244 USA. [Bonvicini, G.; Cinabro, D.; Lincoln, A.; Smith, M. J.; Zhou, P.] Wayne State Univ, Detroit, MI 48202 USA. [Zhu, J.; Naik, P.] Univ Bristol, Bristol BS8 1TL, Avon, England. [Rademacker, J.; Asner, D. M.; Edwards, K. W.; Randrianarivony, K.; Tatishvili, G.] Carleton Univ, Ottawa, ON K1S 5B6, Canada. [Briere, R. A.; Vogel, H.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Onyisi, P. U. E.; Rosner, J. L.] Univ Chicago, Chicago, IL 60637 USA. [Alexander, J. P.; Cassel, D. G.; Das, S.; Ehrlich, R.; Gibbons, L.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Kreinick, D. L.; Kuznetsov, V. E.; Patterson, J. R.; Peterson, D.; Riley, D.; Ryd, A.; Sadoff, A. J.; Shi, X.; Sun, W. M.] Cornell Univ, Ithaca, NY 14853 USA. [Yelton, J.] Univ Florida, Gainesville, FL 32611 USA. [Rubin, P.] George Mason Univ, Fairfax, VA 22030 USA. [Lowrey, N.; Mehrabyan, S.; Selen, M.; Wiss, J.] Univ Illinois, Urbana, IL 61801 USA. [Libby, J.] Indian Inst Technol, Madras 600036, Tamil Nadu, India. [Kornicer, M.; Mitchell, R. E.; Tarbert, C. M.] Indiana Univ, Bloomington, IN 47405 USA. [Besson, D.] Univ Kansas, Lawrence, KS 66045 USA. [Pedlar, T. K.] Luther Coll, Decorah, IA 52101 USA. [Cronin-Hennessy, D.; Hietala, J.] Univ Minnesota, Minneapolis, MN 55455 USA. [Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Xiao, T.] Northwestern Univ, Evanston, IL 60208 USA. RP Asner, DM (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. RI Xin, Bo/E-8839-2012; Briere, Roy/N-7819-2014; Vogel, Helmut/N-8882-2014 OI Xin, Bo/0000-0003-1655-5468; Briere, Roy/0000-0001-5229-1039; Vogel, Helmut/0000-0002-6109-3023 FU National Science Foundation; U.S. Department of Energy; Natural Sciences and Engineering Research Council of Canada; U.K. Science and Technology Facilities Council FX we gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. D.C.-H. thanks the A. P. Sloan Foundation. This work was supported by the National Science Foundation, the U.S. Department of Energy, the Natural Sciences and Engineering Research Council of Canada, and the U.K. Science and Technology Facilities Council. NR 29 TC 5 Z9 5 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 22 PY 2011 VL 84 IS 3 AR 032008 DI 10.1103/PhysRevD.84.032008 PG 6 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 810OT UT WOS:000294135400002 ER PT J AU Hosur, P Ghaemi, P Mong, RSK Vishwanath, A AF Hosur, Pavan Ghaemi, Pouyan Mong, Roger S. K. Vishwanath, Ashvin TI Majorana Modes at the Ends of Superconductor Vortices in Doped Topological Insulators SO PHYSICAL REVIEW LETTERS LA English DT Article ID BI2TE3; CHALCOGENIDES; COMPOUND; STATES AB Recent experiments have observed bulk superconductivity in doped topological insulators. Here we ask whether vortex Majorana zero modes, previously predicted to occur when s-wave superconductivity is induced on the surface of topological insulators, survive in these doped systems with metallic normal states. Assuming inversion symmetry, we find that they do but only below a critical doping. The critical doping is tied to a topological phase transition of the vortex line, at which it supports gapless excitations along its length. The critical point depends only on the vortex orientation and a suitably defined SU(2) Berry phase of the normal state Fermi surface. By calculating this phase for available band structures we determine that superconducting p-doped Bi2Te3, among others, supports vortex end Majorana modes. Surprisingly, superconductors derived from topologically trivial band structures can support Majorana modes too. C1 [Hosur, Pavan; Ghaemi, Pouyan; Mong, Roger S. K.; Vishwanath, Ashvin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Ghaemi, Pouyan; Vishwanath, Ashvin] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Hosur, P (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. FU NSF-DMR [0645691] FX We thank A. M. Turner, J. H. Bardarson, A. Wray, and C. L. Kane for insightful discussions, and NSF-DMR 0645691 for funding. In parallel work, L. Fu, J. C. Y. Teo, and C. L. Kane have arrived at similar conclusions. NR 34 TC 55 Z9 55 U1 1 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 22 PY 2011 VL 107 IS 9 AR 097001 DI 10.1103/PhysRevLett.107.097001 PG 5 WC Physics, Multidisciplinary SC Physics GA 810PI UT WOS:000294137200007 PM 21929261 ER PT J AU Xu, CY Hu, SM Singh, J Bailey, K Lu, ZT Mueller, P O'Connor, TP Welp, U AF Xu, C. -Y. Hu, S. -M. Singh, J. Bailey, K. Lu, Z. -T. Mueller, P. O'Connor, T. P. Welp, U. TI Optical Excitation and Decay Dynamics of Ytterbium Atoms Embedded in a Solid Neon Matrix SO PHYSICAL REVIEW LETTERS LA English DT Article ID RESOLUTION INFRARED-SPECTROSCOPY; GAS MATRICES; HYDROGEN; SPECTRA; HE-4 AB Neutral ytterbium atoms embedded in solid neon qualitatively retain the structure of free atoms. Despite the atom-solid interaction, the 6s6p P-3(0) level is found to remain metastable with its lifetimes determined to be in the range of ten to hundreds of seconds. The atomic population can be almost completely transferred between the ground level and the metastable level via optical excitation and spontaneous decay. The dynamics of this process is examined and is used to explicitly demonstrate that the transition broadening mechanism is homogeneous. C1 [Xu, C. -Y.; Hu, S. -M.; Singh, J.; Bailey, K.; Lu, Z. -T.; Mueller, P.; O'Connor, T. P.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Xu, C. -Y.; Lu, Z. -T.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA. [Xu, C. -Y.; Lu, Z. -T.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Hu, S. -M.] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China. [Welp, U.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Xu, CY (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RI Mueller, Peter/E-4408-2011; Hu, Shuiming/C-4287-2008; Singh, Jaideep/H-2346-2013 OI Mueller, Peter/0000-0002-8544-8191; Hu, Shuiming/0000-0002-1565-8468; Singh, Jaideep/0000-0002-4810-4824 FU Department of Energy, Office of Nuclear Physics [DEAC02-06CH11357]; NKBRSF [2007CB815203] FX We would like to thank T. Oka for the gift of the cryostat and for many helpful discussions throughout the project. This work is supported by Department of Energy, Office of Nuclear Physics, under Contract No. DEAC02-06CH11357. S.-M. Hu acknowledges support from NKBRSF (2007CB815203). NR 23 TC 6 Z9 6 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 22 PY 2011 VL 107 IS 9 AR 093001 DI 10.1103/PhysRevLett.107.093001 PG 4 WC Physics, Multidisciplinary SC Physics GA 810PI UT WOS:000294137200004 PM 21929234 ER PT J AU Moses, WW AF Moses, William W. TI Fundamental limits of spatial resolution in PET SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE PET; Spatial resolution ID POSITRON-EMISSION-TOMOGRAPHY; DETECTORS; SCANNER; RANGE AB The fundamental limits of spatial resolution in positron emission tomography (PET) have been understood for many years. The physical size of the detector element usually plays the dominant role in determining resolution, but the combined contributions from acollinearity, positron range, penetration into the detector ring, and decoding errors in the detector modules often combine to be of similar size. In addition, the sampling geometry and statistical noise further degrade the effective resolution. This paper quantitatively describes these effects, discusses potential methods for reducing the magnitude of these effects, and computes the ultimately achievable spatial resolution for clinical and pre-clinical PET cameras. (c) 2010 Elsevier B.V. All rights reserved. C1 Lawrence Berkeley Natl Lab, Berkeley, CA USA. RP Moses, WW (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA USA. EM wwmoses@lbl.gov FU Office of Science, Office of Biological and Environmental Research, Medical Science Division of the U.S. Department of Energy [DE-AC02-05CH11231]; National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering [R01-EB006085, R21-EB007081] FX I would like to thank Drs. Stephen E. Derenzo, Ronald H. Huesman, and Thomas F. Budinger of Lawrence Berkeley National Laboratory for the many useful discussions that I have had with them, which have provided virtually all of my understanding of PET. This work is supported in part by the Director, Office of Science, Office of Biological and Environmental Research, Medical Science Division of the U.S. Department of Energy under Contract no. DE-AC02-05CH11231, and in part by the National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering under Grant nos. R01-EB006085 and R21-EB007081. NR 17 TC 60 Z9 63 U1 4 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 21 PY 2011 VL 648 SU S1 BP S236 EP S240 DI 10.1016/j.nima.2010.11.092 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 960GV UT WOS:000305376900060 PM 21804677 ER PT J AU Renaud, N Ratner, MA Mujica, V AF Renaud, N. Ratner, M. A. Mujica, V. TI A stochastic surrogate Hamiltonian approach of coherent and incoherent exciton transport in the Fenna-Matthews-Olson complex SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article DE cellular biophysics; excitons; macromolecules; microorganisms; molecular biophysics; stochastic processes ID GREEN SULFUR BACTERIA; QUANTUM COHERENCE; ENERGY-TRANSFER; REDFIELD THEORY; TEMPERATURE; SPECTRA; PROTEIN; PHASE; SPECTROSCOPY; STATES AB The capture and transduction of energy in biological systems is clearly necessary for life, and nature has evolved remarkable macromolecular entities to serve these purposes. The Fenna-Matthews-Olson (FMO) complex serves as an intermediate to transfer the energy from the chlorosome to the special pairs of different photo systems. Recent observations have both suggested the importance of coherent exciton transport within the FMO and motivated an elegant and appropriate theoretical construct for interpreting these observations. Here we employ a different approach to exciton transport in a relaxing environment, one based on the stochastic surrogate Hamiltonian method. With it, we calculate the quantum trajectories through the FMO complex both for the model involving seven bacteriochlorophylls that has been used before, and for one involving an eighth bacteriochlorophyll, which has been observed in some new and very important structural work. We find that in both systems, efficient energy transfer to the ultimate receptor occurs, but that because of the placement of, and energy relaxation among, the different bacteriochlorophyll subunits in the FMO complex, the importance of coherent oscillation that was discussed extensively for the seven site system is far less striking for the eight site system, effectively because of the weak mixing between the initial site and the remainder of the system. We suggest that the relevant spectral densities can be determinative for the energy transport route and may provide a new way to enhance energy transfer in artificial devices. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3624376] C1 [Renaud, N.; Ratner, M. A.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Mujica, V.] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA. [Mujica, V.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Renaud, N (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA. EM n-renaud@northwestern.edu; ratner@northwestern.edu; vmujica@asu.edu FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0000989]; DARPA [N66001-10-1-406] FX We thank Gil Katz, Ronnie Kosloff, Greg Engel, Alan Aspuru Guzik, and especially Robert Blankenship for helpful remarks. This work was supported by the Non-equilibrium Energy Research Center (NERC) which is an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0000989 and by DARPA under Award Number N66001-10-1-4066 for the QuBE project. NR 42 TC 27 Z9 27 U1 1 U2 19 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 21 PY 2011 VL 135 IS 7 AR 075102 DI 10.1063/1.3624376 PG 9 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 809NY UT WOS:000294065200040 PM 21861585 ER PT J AU Job, PK Casey, WR AF Job, P. K. Casey, W. R. TI Radiological implications of top-off operation at national synchrotron light source-II SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Radiation safety; Top-off injection; Light sources AB High current and low emittance have been specified to achieve ultra high brightness in the third generation medium energy Synchrotron Radiation Sources. This leads to the electron beam lifetime limited by Touschek scattering, and after commissioning may settle in at as low as similar to 3 h. It may well be less in the early days of operation. At the same time, the intensity stability specified by the user community for the synchrotron beam is 1% or better. Given the anticipated lifetime of the beam, incremental filling called top-off injection at intervals on the order of similar to 1 min will be required to maintain this beam stability. It is judged to be impractical to make these incremental fills by closing the beam shutters at each injection. In addition, closing the front end beam shutters during each injection will adversely affect the stability of beamline optics due to thermal cycling. Hence the radiological consequences of injection with front end beam shutters open must be evaluated. This paper summarizes results of radiological analysis carried out for the proposed top-off injection at National Synchrotron Light Source-II (NSLS-II) with beam shutters open. (C) 2011 Elsevier B.V. All rights reserved. C1 [Job, P. K.; Casey, W. R.] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA. RP Job, PK (reprint author), Brookhaven Natl Lab, Photon Sci Directorate, Bldg 830M, Upton, NY 11973 USA. EM pkjob@bnl.gov FU US Department of Energy [DE-AC02-98CH10886] FX this manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract no. DE-AC02-98CH10886 with the US Department of Energy. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 13 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 21 PY 2011 VL 648 IS 1 BP 15 EP 21 DI 10.1016/j.nima.2011.04.040 PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 801GB UT WOS:000293425400002 ER PT J AU Sonley, TJ Abruzzio, R Chan, YD Currat, CA Duncan, FA Farine, J Ford, RJ Formaggio, JA Gagnon, N Hallin, AL Heise, J Howe, MA Ilhoff, E Kelsey, J Klein, JR Kraus, C Kruger, A Kutter, T Kyba, CCM Lawson, IT Lesko, KT McCauley, N Monreal, B Monroe, J Noble, AJ Ott, RA Poon, AWP Prior, G Rielage, K Tsui, T Wall, B Wilkerson, JF AF Sonley, T. J. Abruzzio, R. Chan, Y. D. Currat, C. A. Duncan, F. A. Farine, J. Ford, R. J. Formaggio, J. A. Gagnon, N. Hallin, A. L. Heise, J. Howe, M. A. Ilhoff, E. Kelsey, J. Klein, J. R. Kraus, C. Krueger, A. Kutter, T. Kyba, C. C. M. Lawson, I. T. Lesko, K. T. McCauley, N. Monreal, B. Monroe, J. Noble, A. J. Ott, R. A. Poon, A. W. P. Prior, G. Rielage, K. Tsui, T. Wall, B. Wilkerson, J. F. TI Calibration of muon reconstruction algorithms using an external muon tracking system at the Sudbury Neutrino Observatory SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Neutrinos; Muon detector; Cosmic rays; Tracking AB To help constrain the algorithms used in reconstructing high-energy muon events incident on the Sudbury Neutrino Observatory (SNO), a muon tracking system was installed. The system consisted of four planes of wire chambers, which were triggered by scintillator panels. The system was integrated with SNO's main data acquisition system and took data for a total of 95 live days. Using cosmic-ray events reconstructed in both the wire chambers and in SNO's water Cherenkov detector, the external muon tracking system was able to constrain the uncertainty on the muon direction to better than 0.6 degrees. (C) 2011 Elsevier B.V. All rights reserved. C1 [Sonley, T. J.; Abruzzio, R.; Formaggio, J. A.; Ilhoff, E.; Kelsey, J.; Monreal, B.; Monroe, J.; Ott, R. A.] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA. [Chan, Y. D.; Currat, C. A.; Gagnon, N.; Lesko, K. T.; Poon, A. W. P.; Prior, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Inst Nucl & Particle Astrophys, Berkeley, CA 94720 USA. [Chan, Y. D.; Currat, C. A.; Gagnon, N.; Lesko, K. T.; Poon, A. W. P.; Prior, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Duncan, F. A.; Ford, R. J.; Lawson, I. T.] SNOLAB, Sudbury, ON P3Y 1M3, Canada. [Sonley, T. J.; Duncan, F. A.; Gagnon, N.; Hallin, A. L.; Heise, J.; Kraus, C.; Noble, A. J.] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada. [Farine, J.; Krueger, A.] Laurentian Univ, Dept Phys & Astron, Sudbury, ON P3E 2C6, Canada. [Formaggio, J. A.; Gagnon, N.; Howe, M. A.; Rielage, K.; Wall, B.; Wilkerson, J. F.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. [Formaggio, J. A.; Gagnon, N.; Howe, M. A.; Rielage, K.; Wall, B.; Wilkerson, J. F.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Gagnon, N.; Heise, J.; Rielage, K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Hallin, A. L.; Kraus, C.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2R3, Canada. [Heise, J.; Tsui, T.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. [Howe, M. A.; Wilkerson, J. F.] Univ N Carolina, Dept Phys, Chapel Hill, NC USA. [Klein, J. R.; Kyba, C. C. M.; McCauley, N.] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Kutter, T.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. [Lawson, I. T.] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. RP Formaggio, JA (reprint author), MIT, Nucl Sci Lab, Cambridge, MA 02139 USA. EM josephf@mit.edu RI Hallin, Aksel/H-5881-2011; Kyba, Christopher/I-2014-2012; Prior, Gersende/I-8191-2013; OI Kyba, Christopher/0000-0001-7014-1843; Wilkerson, John/0000-0002-0342-0217; Prior, Gersende/0000-0002-6058-1420; Rielage, Keith/0000-0002-7392-7152 FU Natural Sciences and Engineering Research Council; Industry Canada; National Research Council; Northern Ontario Heritage Fund; Atomic Energy of Canada, Ltd.; Ontario Power Generation; High Performance Computing Virtual Laboratory; Canada Foundation for Innovation; Department of Energy; National Energy Research Scientific Computing Center; Science and Technology Facilities Council; Fundacao para a Ciencia e a Tecnologia FX This research was supported by: Canada: Natural Sciences and Engineering Research Council, Industry Canada, National Research Council, Northern Ontario Heritage Fund, Atomic Energy of Canada, Ltd., Ontario Power Generation, High Performance Computing Virtual Laboratory, Canada Foundation for Innovation; USA: Department of Energy, National Energy Research Scientific Computing Center; UK: Science and Technology Facilities Council; Portugal: Fundacao para a Ciencia e a Tecnologia. We would like to thank Indiana University, Los Alamos National Laboratory, and K. Eitel for loan of equipment to make the measurement possible. We would also like to thank the SNO technical staff for their strong contributions and Vale (formerly Inco) for hosting this project. NR 18 TC 0 Z9 0 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 21 PY 2011 VL 648 IS 1 BP 92 EP 99 DI 10.1016/j.nima.2011.05.054 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 801GB UT WOS:000293425400011 ER PT J AU Gibelin, J Wiedeking, M Phair, L Fallon, P Basunia, S Bernstein, LA Burke, JT Bleuel, DL Clark, RM Cromaz, M Deleplanque, MA Goldblum, BF Gros, S Jeppesen, HB Lake, PT Lee, IY Lesher, SR Macchiavelli, AO McMahan, MA Pavan, J Rodriguez-Vieitez, E Scielzo, ND Moretto, LG AF Gibelin, J. Wiedeking, M. Phair, L. Fallon, P. Basunia, S. Bernstein, L. A. Burke, J. T. Bleuel, D. L. Clark, R. M. Cromaz, M. Deleplanque, M. -A. Goldblum, B. F. Gros, S. Jeppesen, H. B. Lake, P. T. Lee, I. -Y. Lesher, S. R. Macchiavelli, A. O. McMahan, M. A. Pavan, J. Rodriguez-Vieitez, E. Scielzo, N. D. Moretto, L. G. TI Channel selection of neutron-rich nuclei following fusion-evaporation reactions of light systems SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Fusion-evaporation reactions; Light nuclei; gamma-Spectroscopy ID CLOVER; LISE AB Experimental results for the minor decay channels of fusion-evaporation in light projectile plus light target systems are presented. These new data were obtained during test campaigns to measure the opening of different decay channels. Experiments were designed to provide relative cross-section information on weakly populated channels for gamma-ray spectroscopy experiments in coincidence with charged-particles. The results are compared to publicly available fusion-evaporation codes. The data follow a simple estimate which is useful in predicting experimental conditions to make the fusion-evaporation reaction a viable nuclear structure tool to study weakly populated light neutron-rich nuclei. (C) 2011 Elsevier B.V. All rights reserved. C1 [Gibelin, J.; Wiedeking, M.; Phair, L.; Fallon, P.; Basunia, S.; Bleuel, D. L.; Clark, R. M.; Cromaz, M.; Deleplanque, M. -A.; Gros, S.; Jeppesen, H. B.; Lake, P. T.; Lee, I. -Y.; Macchiavelli, A. O.; McMahan, M. A.; Pavan, J.; Rodriguez-Vieitez, E.; Moretto, L. G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Wiedeking, M.; Bernstein, L. A.; Burke, J. T.; Bleuel, D. L.; Goldblum, B. F.; Lesher, S. R.; Scielzo, N. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Wiedeking, M.] IThemba LABS, ZA-7129 Somerset W, South Africa. [Goldblum, B. F.; Lake, P. T.; Rodriguez-Vieitez, E.; Moretto, L. G.] Univ Calif Berkeley, Berkeley, CA 94720 USA. RP Gibelin, J (reprint author), Univ Caen, LPC Caen, F-14050 Caen, France. EM gibelin@lpccaen.in2p3.fr RI Burke, Jason/I-4580-2012; OI Rodriguez-Vieitez, Elena/0000-0002-6639-8141 FU U.S. Department of Energy [DE-AC02-05CH11231, DE-AC52-07NA27344] FX The authors thank the operations staff of the 88-in. Cyclotron. Support for Lawrence Berkeley National Laboratory was provided by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Part of this work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. NR 17 TC 1 Z9 1 U1 1 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 21 PY 2011 VL 648 IS 1 BP 109 EP 113 DI 10.1016/j.nima.2011.05.041 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 801GB UT WOS:000293425400013 ER PT J AU Burns, EJT Thacher, PD Hassig, GJ Decker, RD Romero, JA Barrett, KP AF Burns, E. J. T. Thacher, P. D. Hassig, G. J. Decker, R. D. Romero, J. A. Barrett, K. P. TI A bismuth activation counter for high sensitivity pulsed 14 MeV neutrons SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Neutron detector; Gamma ray detector; BGO scintillator; Fast neutron activation; Fusion; Bismuth ID DETECTOR AB We have built a fast neutron bismuth activation counter that measures activation counts from pulsed 14-MeV neutron generators for incident neutron fluences between 30 and 300 neutrons/cm(2) at 15.2 cm (6 in.). The activation counter consists of a large bismuth germanate (BGO) detector surrounded by a bismuth metal shield in front of and concentric with the cylindrical detector housing. The 14 MeV neutrons activate the 2.6-millisecond (ms) isomer in the shield and the detector by the reaction (209)Bi (n,2n gamma) (208m)Bi. The use of millisecond isomers and activation counting times minimizes the background from other activated materials and the environment. In addition to activation, the bismuth metal shields against other outside radiation sources. We have tested the bismuth activation counter, simultaneously, with two data acquisition systems (DASs) and both give similar results. The two-dimensional (2D) DAS and three dimensional (3D) DAS both consist of pulse height analysis (PHA) systems that can be used to discriminate against gamma radiations below 300 keV photon energy, so that the detector can be used strictly as a counter. If the counting time is restricted to less than 25 ms after the neutron pulse, there are less than 10 counts of background for single pulse operation in all our operational environments tested so far. High-fluence neutron generator operations are restricted by large dead times and pulse height saturation. When we operate our 3D DAS PHA system in list mode acquisition (LIST), real-time corrections to dead time or live time can be made on the scale of 1 ms time windows or dwell times. The live time correction is consistent with nonparalyzable models for dead time of 1.0 +/- 0.2 mu s for our 3D DAS and 1.5 +/- 0.3 mu s for our 2D DAS dominated by our fixed time width analog to digital converters (ADCs). With the same solid angle, we have shown that the bismuth activation counter has a factor of 4 increase in sensitivity over our lead activation counter, because of higher counts and negligible backgrounds. (C) 2011 Elsevier B.V. All rights reserved. C1 [Burns, E. J. T.; Thacher, P. D.; Hassig, G. J.; Decker, R. D.; Romero, J. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Barrett, K. P.] Primecore Syst Inc, Albuquerque, NM 87111 USA. RP Burns, EJT (reprint author), Sandia Natl Labs, Org 02541,POB 5800,Mail Stop 0665, Albuquerque, NM 87185 USA. EM ejburns@sandia.gov FU United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The authors would like to thank James Banks, Donald Malbrough and Eric Detlefs for offering improvements to this paper. We also wish to thank the many people who supported us in this development project on the various testers. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 17 TC 0 Z9 0 U1 1 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 21 PY 2011 VL 648 IS 1 BP 218 EP 227 DI 10.1016/j.nima.2011.05.062 PG 10 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 801GB UT WOS:000293425400026 ER PT J AU Saad, WHM Roslan, RE Mandi, MA Choong, WS Saion, E Saripan, MI AF Saad, W. H. M. Roslan, R. E. Mandi, M. A. Choong, W. -S. Saion, E. Saripan, M. I. TI Monte Carlo design of optimal wire mesh collimator for breast tumor imaging process SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Monte Carlo; MCNP; Breast tumor; Wire mesh collimator; Gamma camera ID GAMMA-CAMERAS; SIMULATION; COMPACT AB This paper presents the modeling of breast tumor imaging process using wire mesh collimator gamma camera. Previous studies showed that the wire mesh collimator has a potential to improve the sensitivity of the tumor detection. In this paper, we extend our research significantly, to find an optimal configuration of the wire mesh collimator specifically for semi-compressed breast tumor detection, by looking into four major factors: weight, sensitivity, spatial resolution and tumor contrast. The numbers of layers in the wire mesh collimator is varied to optimize the collimator design. The statistical variations of the results are studied by simulating multiple realizations for each experiment using different starting random numbers. All the simulation environments are modeled using Monte Carlo N-Particle Code (MCNP). The quality of the detection is measured directly by comparing the sensitivity, spatial resolution and tumor contrast of the images produced by the wire mesh collimator and benchmarked that with a standard multihole collimator. The proposed optimal configuration of the wire mesh collimator is optimized by selecting the number of layers in wire mesh collimator, where the tumor contrast shows a relatively comparable value to the multihole collimator, when it is tested with uniformly semi-compressed breast phantom. The wire mesh collimator showed higher number of sensitivity because of its loose arrangement while the spatial resolution of wire mesh collimator does not shows much different compared to the multihole collimator. With a relatively good tumor contrast and spatial resolution, and increased in sensitivity, a new proposed wire mesh collimator gives a significant improvement in the wire mesh collimator design for breast cancer imaging process. The proposed collimator configuration is reduced to 44.09% from the total multihole collimator weight. (C) 2011 Elsevier B.V. All rights reserved. C1 [Saad, W. H. M.; Roslan, R. E.; Mandi, M. A.; Saripan, M. I.] Univ Putra Malaysia, Dept Comp & Commun Syst Engn, Fac Engn, Upm Serdang 43400, Selangor, Malaysia. [Choong, W. -S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Saion, E.] Univ Putra Malaysia, Fac Sci, Serdang 43400, Selangor, Malaysia. RP Saripan, MI (reprint author), Univ Putra Malaysia, Dept Comp & Commun Syst Engn, Fac Engn, Upm Serdang 43400, Selangor, Malaysia. EM iqbal@eng.upm.edu.my RI Saripan, M Iqbal/A-9582-2010 OI Saripan, M Iqbal/0000-0002-3005-5331 FU Universiti Putra Malaysia; Universiti Teknikal Melaka FX The authors would like to thank Universiti Putra Malaysia and Universiti Teknikal Melaka for the Fellowship assistant. NR 29 TC 6 Z9 6 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 21 PY 2011 VL 648 IS 1 BP 254 EP 260 DI 10.1016/j.nima.2011.05.064 PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 801GB UT WOS:000293425400030 ER PT J AU Kim, K Kam, D Nguyen, CC Song, SW Kostecki, R AF Kim, Ketack Kam, Daewoong Cao Cuong Nguyen Song, Seung-Wan Kostecki, Robert TI Study on the Dominant Film-Forming Site Among Components of Li(Ni1/3Co1/3Mn1/3)O-2 Cathode in Li-ion Batteries SO BULLETIN OF THE KOREAN CHEMICAL SOCIETY LA English DT Article DE Li-ion battery; Li(Ni1/3Co1/3Mn1/3)O-2 cathode; Electrolyte decomposition ID THERMAL-STABILITY; LITHIUM BATTERIES; FLAME-RETARDANT; LINI0.8CO0.15AL0.05O2; LICO1/3NI1/3MN1/3O2; SPECTROSCOPY; ADDITIVES; ELECTRODE; SEI AB Surface film formation on Li(Ni1/3Co1/3Mn1/3)O-2 cathodes upon oxidation of electrolyte during electrochemical cycling was investigated. Information on the important factors for film formation on the cathode can facilitate the design of additives that improve the properties of the cathode. Pyrazole is added to the electrolyte because it is readily oxidized to form a surface film on the cathode. The results of differential scanning calorimetry and Fourier transform infrared spectroscopy (FTIR) showed that the active material played a dominant role in the interfacial film formation with the electrolyte. Carbon black played a negligible role in the surface film formation. C1 [Kim, Ketack] Sangmyung Univ, Dept Chem, Seoul 110743, South Korea. [Kam, Daewoong] Korea Electrotechnol Res Inst, Battery Res Ctr, Chang Won 641600, South Korea. [Cao Cuong Nguyen; Song, Seung-Wan] Chungnam Natl Univ, Dept Fine Chem Engn & Appl Chem, Taejon 305764, South Korea. [Kostecki, Robert] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. RP Kim, K (reprint author), Sangmyung Univ, Dept Chem, Seoul 110743, South Korea. EM ketack.kim@smu.ac.kr FU National Research Foundation of Korea; Korean Government (MEST) [NRF-2009-C1AAA001-2009-0093307] FX This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST) (NRF-2009-C1AAA001-2009-0093307). NR 26 TC 4 Z9 4 U1 0 U2 28 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 0253-2964 EI 1229-5949 J9 B KOREAN CHEM SOC JI Bull. Korean Chem. Soc. PD AUG 20 PY 2011 VL 32 IS 8 BP 2571 EP 2576 DI 10.5012/bkcs.2011.32.8.2571 PG 6 WC Chemistry, Multidisciplinary SC Chemistry GA 852UV UT WOS:000297383900011 ER PT J AU Olson, GL AF Olson, Gordon L. TI Second order time evolution of the multigroup diffusion and P-1 equations for radiation transport SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Radiation transport; Multigroup; Second order; Radiation diffusion; Flux-limited diffusion ID TEMPORAL ACCURACY; SCHEME AB An existing solution method for solving the multigroup radiation equations, linear II frequency-grey acceleration, is here extended to be second order in time. This me works for simple diffusion and for flux-limited diffusion, with or without material con tion. A new method is developed that does not require the solution of an averaged transport equation. It is effective solving both the diffusion and P-1 forms of the tram equation. Two dimensional, multi-material test problems are used to compare the soli methods. (C) 2011 Elsevier Inc. All rights reserved. C1 Los Alamos Natl Lab, Comp & Computat Sci Div CCS 2, Madison, WI 53717 USA. RP Olson, GL (reprint author), Los Alamos Natl Lab, Comp & Computat Sci Div CCS 2, 5 Foxglove Circle, Madison, WI 53717 USA. EM olson99@tds.net NR 15 TC 3 Z9 3 U1 0 U2 1 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD AUG 20 PY 2011 VL 230 IS 20 BP 7548 EP 7566 DI 10.1016/j.jcp.2011.06.001 PG 19 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 815HY UT WOS:000294517900002 ER PT J AU Ziegler, JL Deiterding, R Shepherd, JE Pullin, DI AF Ziegler, Jack L. Deiterding, Ralf Shepherd, Joseph E. Pullin, D. I. TI An adaptive high-order hybrid scheme for compressive, viscous flows with detailed chemistry SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Weighted essentially non-oscillatory; Detonation; Adaptive mesh refinement; Navier-Stokes; Direct numerical simulation; Reacting compressible flow ID ESSENTIALLY NONOSCILLATORY SCHEMES; SHOCK-TURBULENCE INTERACTION; VIRTUAL TEST FACILITY; NUMERICAL-METHODS; MESH REFINEMENT; DIFFERENTIAL-EQUATIONS; GASEOUS DETONATIONS; CONSERVATION-LAWS; 5TH-ORDER WENO; SIMULATION AB A hybrid weighted essentially non-oscillatory (WENO)/centered-difference nume method, with low numerical dissipation, high-order shock-capturing, and structured a tive mesh refinement (SAMR), has been developed for the direct numerical simulatic the multicomponent, compressible, reactive Navier-Stokes equations. The method eni accurate resolution of diffusive processes within reaction zones. The approach comt time-split reactive source terms with a high-order, shock-capturing scheme specifi. designed for diffusive flows. A description of the order-optimized, symmetric, finite di ence, flux-based, hybrid WENO/centered-difference scheme is given, along with its inmentation in a high-order SAMR framework. The implementation of new technique discontinuity flagging, scheme-switching, and high-order prolongation and restrictic described. In particular, the refined methodology does not require upwinded WENO at refinement interfaces for stability, allowing high-order prolongation and thereby elimi ing a significant source of numerical diffusion within the overall code performance. A 5( of one-and two-dimensional test problems is used to verify the implementation, spe cally the high-order accuracy of the diffusion terms. One-dimensional benchmarks inc a viscous shock wave and a laminar flame. In two-space dimensions, a Lamb-Oseen vc and an unstable diffusive detonation are considered, for which quantitative convergen demonstrated. Further, a two-dimensional high-resolution simulation of a reactive It reflection phenomenon with diffusive multi-species mixing is presented. (C) 2011 Elsevier Inc. All rights reserved. C1 [Ziegler, Jack L.; Shepherd, Joseph E.; Pullin, D. I.] CALTECH, Pasadena, CA 91125 USA. [Deiterding, Ralf] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Ziegler, JL (reprint author), CALTECH, 1200 E Calif Blvd,MC 205-45, Pasadena, CA 91125 USA. EM jackalak@caltech.edu; deiterdingr@ornl.gov; dale@galcit.caltech.edu RI Deiterding, Ralf/A-3394-2009; Shepherd, Joseph/B-5997-2014 OI Deiterding, Ralf/0000-0003-4776-8183; Shepherd, Joseph/0000-0003-3181-9310 NR 70 TC 30 Z9 31 U1 2 U2 27 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD AUG 20 PY 2011 VL 230 IS 20 BP 7598 EP 7630 DI 10.1016/j.jcp.2011.06.016 PG 33 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 815HY UT WOS:000294517900004 ER PT J AU Jee, MJ Dawson, KS Hoekstra, H Perlmutter, S Rosati, P Brodwin, M Suzuki, N Koester, B Postman, M Lubin, L Meyers, J Stanford, SA Barbary, K Barrientos, F Eisenhardt, P Ford, HC Gilbank, DG Gladders, MD Gonzalez, A Harris, DW Huang, X Lidman, C Rykoff, ES Rubin, D Spadafora, AL AF Jee, M. J. Dawson, K. S. Hoekstra, H. Perlmutter, S. Rosati, P. Brodwin, M. Suzuki, N. Koester, B. Postman, M. Lubin, L. Meyers, J. Stanford, S. A. Barbary, K. Barrientos, F. Eisenhardt, P. Ford, H. C. Gilbank, D. G. Gladders, M. D. Gonzalez, A. Harris, D. W. Huang, X. Lidman, C. Rykoff, E. S. Rubin, D. Spadafora, A. L. TI SCALING RELATIONS AND OVERABUNDANCE OF MASSIVE CLUSTERS AT z greater than or similar to 1 FROM WEAK-LENSING STUDIES WITH THE HUBBLE SPACE TELESCOPE SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmology: observations; dark matter; galaxies: clusters: general; galaxies: high-redshift; gravitational lensing: weak; X-rays: galaxies: clusters ID IRAC SHALLOW SURVEY; CHANDRA X-RAY; CHARGE-TRANSFER INEFFICIENCY; RELAXED GALAXY CLUSTERS; COLOR-MAGNITUDE DIAGRAM; HIGH-REDSHIFT CLUSTERS; PIXEL-BASED CORRECTION; DARK-MATTER; ADVANCED CAMERA; RED-SEQUENCE AB We present weak gravitational lensing analysis of 22 high-redshift (z greater than or similar to 1) clusters based on Hubble Space Telescope images. Most clusters in our sample provide significant lensing signals and are well detected in their reconstructed two-dimensional mass maps. Combining the current results and our previous weak-lensing studies of five other high-z clusters, we compare gravitational lensing masses of these clusters with other observables. We revisit the question whether the presence of the most massive clusters in our sample is in tension with the current. CDM structure formation paradigm. We find that the lensing masses are tightly correlated with the gas temperatures and establish, for the first time, the lensing mass-temperature relation at z greater than or similar to 1. For the power-law slope of the M-T-X relation (M proportional to T-alpha), we obtain alpha = 1.54 +/- 0.23. This is consistent with the theoretical self-similar prediction alpha = 3/2 and with the results previously reported in the literature for much lower redshift samples. However, our normalization is lower than the previous results by 20%-30%, indicating that the normalization in the M-T-X relation might evolve. After correcting for Eddington bias and updating the discovery area with a more conservative choice, we find that the existence of the most massive clusters in our sample still provides a tension with the current. CDM model. The combined probability of finding the four most massive clusters in this sample after the marginalization over cosmological parameters is less than 1%. C1 [Jee, M. J.; Lubin, L.; Stanford, S. A.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Dawson, K. S.; Harris, D. W.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA. [Hoekstra, H.] Leiden Univ, Leiden Observ, Leiden, Netherlands. [Perlmutter, S.; Suzuki, N.; Meyers, J.; Barbary, K.; Huang, X.; Rykoff, E. S.; Rubin, D.; Spadafora, A. L.] EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Rosati, P.] European So Observ, D-85748 Garching, Germany. [Brodwin, M.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Koester, B.; Gladders, M. D.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Postman, M.] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Stanford, S. A.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. [Barbary, K.; Rubin, D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Barrientos, F.] Univ Catolica Chile, Dept Astron & Astrophys, Santiago, Chile. [Eisenhardt, P.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA. [Ford, H. C.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. [Gilbank, D. G.] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada. [Gonzalez, A.] Univ Florida, Dept Astron, Gainesville, FL 32611 USA. [Lidman, C.] Australian Astron Observ, Epping, NSW 1710, Australia. RP Jee, MJ (reprint author), Univ Calif Davis, Dept Phys, 1 Shields Ave, Davis, CA 95616 USA. RI Perlmutter, Saul/I-3505-2015; OI Perlmutter, Saul/0000-0002-4436-4661; Hoekstra, Henk/0000-0002-0641-3231 FU NASA [NAS 5-26555, 9290, 9919, 10496, GO-10496]; TABASGO foundation; Office of Science, Office of High Energy and Nuclear Physics, of the U.S. Department of Energy [AC02-05CH11231]; JSPS [20040003]; Netherlands Organisation for Scientific Research (NWO); Marie Curie International Reintegration Grant; DFG; W. M. Keck Foundation; U.S. Department of Energy by Lawrence Livermore National Laboratory [W-7405-Eng-48]; [DE-AC52-07NA27344] FX Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555, under program 9290, 9919, and 10496.; M.J.J. acknowledges support for the current research from the TABASGO foundation presented in the form of the Large Synoptic Survey Telescope Cosmology Fellowship. Financial support for this work was in part provided by NASA through program GO-10496 from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555. This work was also supported in part by the Director, Office of Science, Office of High Energy and Nuclear Physics, of the U. S. Department of Energy under Contract No. AC02-05CH11231, as well as a JSPS core-to-core program "International Research Network for Dark Energy" and by JSPS research grant 20040003. H.H. acknowledges support from the Netherlands Organisation for Scientific Research (NWO) through a VIDI grant. H. H. is also supported by a Marie Curie International Reintegration Grant. P. R. acknowledges partial support by the DFG cluster of excellence Origin and Structure of the Universe. Support for M. B. was provided by the W. M. Keck Foundation. The work of S.A.S. was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory in part under Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344. The work of P. E. was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. NR 106 TC 70 Z9 70 U1 0 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 20 PY 2011 VL 737 IS 2 AR 59 DI 10.1088/0004-637X/737/2/59 PG 32 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 808WV UT WOS:000294013600013 ER PT J AU Marriage, TA Acquaviva, V Ade, PAR Aguirre, P Amiri, M Appel, JW Barrientos, LF Battistelli, ES Bond, JR Brown, B Burger, B Chervenak, J Das, S Devlin, MJ Dicker, SR Doriese, WB Dunkley, J Dunner, R Essinger-Hileman, T Fisher, RP Fowler, JW Hajian, A Halpern, M Hasselfield, M Hernandez-Monteagudo, C Hilton, GC Hilton, M Hincks, AD Hlozek, R Huffenberger, KM Hughes, DH Hughes, JP Infante, L Irwin, KD Juin, JB Kaul, M Klein, J Kosowsky, A Lau, JM Limon, M Lin, YT Lupton, RH Marsden, D Martocci, K Mauskopf, P Menanteau, F Moodley, K Moseley, H Netterfield, CB Niemack, MD Nolta, MR Page, LA Parker, L Partridge, B Quintana, H Reese, ED Reid, B Sehgal, N Sherwin, BD Sievers, J Spergel, DN Staggs, ST Swetz, DS Switzer, ER Thornton, R Trac, H Tucker, C Warne, R Wilson, G Wollack, E Zhao, Y AF Marriage, Tobias A. Acquaviva, Viviana Ade, Peter A. R. Aguirre, Paula Amiri, Mandana Appel, John William Felipe Barrientos, L. Battistelli, Elia S. Bond, J. Richard Brown, Ben Burger, Bryce Chervenak, Jay Das, Sudeep Devlin, Mark J. Dicker, Simon R. Doriese, W. Bertrand Dunkley, Joanna Duenner, Rolando Essinger-Hileman, Thomas Fisher, Ryan P. Fowler, Joseph W. Hajian, Amir Halpern, Mark Hasselfield, Matthew Hernandez-Monteagudo, Carlos Hilton, Gene C. Hilton, Matt Hincks, Adam D. Hlozek, Renee Huffenberger, Kevin M. Handel Hughes, David Hughes, John P. Infante, Leopoldo Irwin, Kent D. Baptiste Juin, Jean Kaul, Madhuri Klein, Jeff Kosowsky, Arthur Lau, Judy M. Limon, Michele Lin, Yen-Ting Lupton, Robert H. Marsden, Danica Martocci, Krista Mauskopf, Phil Menanteau, Felipe Moodley, Kavilan Moseley, Harvey Netterfield, Calvin B. Niemack, Michael D. Nolta, Michael R. Page, Lyman A. Parker, Lucas Partridge, Bruce Quintana, Hernan Reese, Erik D. Reid, Beth Sehgal, Neelima Sherwin, Blake D. Sievers, Jon Spergel, David N. Staggs, Suzanne T. Swetz, Daniel S. Switzer, Eric R. Thornton, Robert Trac, Hy Tucker, Carole Warne, Ryan Wilson, Grant Wollack, Ed Zhao, Yue TI THE ATACAMA COSMOLOGY TELESCOPE: SUNYAEV-ZEL'DOVICH-SELECTED GALAXY CLUSTERS AT 148 GHz IN THE 2008 SURVEY SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmic background radiation; cosmology: observations; galaxies: clusters: general; radio continuum: general; surveys ID SOUTH-POLE TELESCOPE; BACKGROUND POWER SPECTRUM; COSMIC DISTANCE SCALE; X-RAY MEASUREMENTS; HUBBLE CONSTANT; LENSING MEASUREMENTS; PRESSURE PROFILE; SOURCE CATALOG; DARK ENERGY; CONSTRAINTS AB We report on 23 clusters detected blindly as Sunyaev-Zel'dovich (SZ) decrements in a 148 GHz, 455 deg(2) map of the southern sky made with data from the Atacama Cosmology Telescope 2008 observing season. All SZ detections announced in this work have confirmed optical counterparts. Ten of the clusters are new discoveries. One newly discovered cluster, ACT-CL J0102-4915, with a redshift of 0.75 ( photometric), has an SZ decrement comparable to the most massive systems at lower redshifts. Simulations of the cluster recovery method reproduce the sample purity measured by optical follow-up. In particular, for clusters detected with a signal-to-noise ratio greater than six, simulations are consistent with optical follow-up that demonstrated this subsample is 100% pure. The simulations further imply that the total sample is 80% complete for clusters with mass in excess of 6 x 10(14) solar masses referenced to the cluster volume characterized by 500 times the critical density. The Compton y-X-ray luminosity mass comparison for the 11 best-detected clusters visually agrees with both self-similar and non-adiabatic, simulation-derived scaling laws. C1 [Marriage, Tobias A.; Acquaviva, Viviana; Das, Sudeep; Dunkley, Joanna; Hajian, Amir; Lin, Yen-Ting; Lupton, Robert H.; Spergel, David N.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Acquaviva, Viviana; Hughes, John P.; Menanteau, Felipe] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Ade, Peter A. R.; Mauskopf, Phil; Tucker, Carole] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales. [Aguirre, Paula; Felipe Barrientos, L.; Duenner, Rolando; Infante, Leopoldo; Baptiste Juin, Jean; Lin, Yen-Ting; Quintana, Hernan] Pontificia Univ Catolica Chile, Fac Fis, Dept Astron & Astrofis, Santiago 22, Chile. [Amiri, Mandana; Battistelli, Elia S.; Burger, Bryce; Halpern, Mark; Hasselfield, Matthew] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada. [Appel, John William; Das, Sudeep; Dunkley, Joanna; Essinger-Hileman, Thomas; Fisher, Ryan P.; Fowler, Joseph W.; Hajian, Amir; Hincks, Adam D.; Lau, Judy M.; Limon, Michele; Martocci, Krista; Niemack, Michael D.; Page, Lyman A.; Parker, Lucas; Reid, Beth; Sherwin, Blake D.; Staggs, Suzanne T.; Switzer, Eric R.; Zhao, Yue] Princeton Univ, Joseph Henry Labs Phys, Princeton, NJ 08544 USA. [Battistelli, Elia S.] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy. [Bond, J. Richard; Hajian, Amir; Nolta, Michael R.; Sievers, Jon] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada. [Brown, Ben; Kosowsky, Arthur] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA. [Chervenak, Jay; Moseley, Harvey; Wollack, Ed] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Das, Sudeep] Univ Calif Berkeley, LBL, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA. [Das, Sudeep] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Devlin, Mark J.; Dicker, Simon R.; Kaul, Madhuri; Klein, Jeff; Limon, Michele; Marsden, Danica; Reese, Erik D.; Swetz, Daniel S.; Thornton, Robert] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Doriese, W. Bertrand; Fowler, Joseph W.; Hilton, Gene C.; Irwin, Kent D.; Niemack, Michael D.; Swetz, Daniel S.] NIST Quantum Devices Grp, Boulder, CO 80305 USA. [Dunkley, Joanna; Hlozek, Renee] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England. [Hernandez-Monteagudo, Carlos] Max Planck Inst Astrophys, D-85741 Garching, Germany. [Hilton, Matt; Moodley, Kavilan; Warne, Ryan] Univ KwaZulu Natal, Sch Math Sci, Astrophys & Cosmol Res Unit, ZA-4041 Durban, South Africa. [Hilton, Matt; Moodley, Kavilan] Ctr High Performance Comp, Rosebank, Cape Town, South Africa. [Huffenberger, Kevin M.] Univ Miami, Dept Phys, Coral Gables, FL 33124 USA. [Handel Hughes, David] INAOE, Puebla, Mexico. [Lau, Judy M.; Sehgal, Neelima] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA. [Lau, Judy M.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Limon, Michele] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA. [Lin, Yen-Ting] Univ Tokyo, Inst Phys & Math Universe, Chiba 2778568, Japan. [Martocci, Krista] Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Netterfield, Calvin B.; Switzer, Eric R.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Partridge, Bruce] Haverford Coll, Dept Phys & Astron, Haverford, PA 19041 USA. [Reid, Beth] Univ Barcelona, ICC, E-08028 Barcelona, Spain. [Thornton, Robert] W Chester Univ Penn, Dept Phys, W Chester, PA 19383 USA. [Trac, Hy] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. [Trac, Hy] Harvard Univ, Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Wilson, Grant] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA. RP Marriage, TA (reprint author), Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA. RI Trac, Hy/N-8838-2014; Wollack, Edward/D-4467-2012; Klein, Jeffrey/E-3295-2013; Spergel, David/A-4410-2011; Hilton, Matthew James/N-5860-2013 OI Trac, Hy/0000-0001-6778-3861; Wollack, Edward/0000-0002-7567-4451; Menanteau, Felipe/0000-0002-1372-2534; Sievers, Jonathan/0000-0001-6903-5074; Limon, Michele/0000-0002-5900-2698; Tucker, Carole/0000-0002-1851-3918; Huffenberger, Kevin/0000-0001-7109-0099; FU U.S. National Science Foundation [AST-0408698, PHY-0355328, AST-0707731, PIRE-0507768]; Comision Nacional de Investigacion Cientifica y Technologica de Chile (CONICYT); Princeton University; University of Pennsylvania; Canada Foundation for Innovation under the Compute Canada; Government of Ontario; Ontario Research Fund-Research Excellence; University of Toronto; NASA [NNX08AH30G]; FONDECYT [3085031]; Natural Science and Engineering Research Council of Canada (NSERC); NSF [AST-0546035, AST-0606975]; FONDAP Centro de Astrofisica; U.S. Department of Energy [DE-AC3-76SF00515]; CONICYT; MECESUP; Fundacion Andes; Rhodes Trust; NSF Physics Frontier Center [PHY-0114422]; World Premier International Research Center Initiative, MEXT, Japan FX The ACT project was proposed in 2000 and funded by the U.S. National Science Foundation on 2004 January 1. Many have contributed to the project since its inception. We especially wish to thank Asad Aboobaker, Christine Allen, Dominic Benford, Paul Bode, Kristen Burgess, Angelica de Oliveira-Costa, Sean Frazier, Nick Hand, Peter Hargrave, Norm Jarosik, Amber Miller, Carl Reintsema, Felipe Rojas, Uros Seljak, Martin Spergel, Johannes Staghun, Carl Stahle, Max Tegmark, Masao Uehara, Katerina Visnjic, and Ed Wishnow. It is a pleasure to acknowledge Bob Margolis, ACT's project manager. Reed Plimpton and David Jacobson worked at the telescope during the 2008 season. Naoki Itoh and Satoshi Nozawa provided code for calculating relativistic corrections to the SZ. ACT operates in the Parque Astronomico Atacama in northern Chile under the auspices of Programa de Astronomia, a program of the Comision Nacional de Investigacion Cientifica y Technologica de Chile (CONICYT).; This work was supported by the U.S. National Science Foundation through awards AST-0408698 for the ACT project, and PHY-0355328, AST-0707731, and PIRE-0507768. Funding was also provided by Princeton University and the University of Pennsylvania. The PIRE program made possible exchanges between Chile, South Africa, Spain, and the United States that enabled this research program. Computations were performed on the GPC supercomputer at the SciNet HPC Consortium. SciNet is funded by the Canada Foundation for Innovation under the auspices of Compute Canada; the Government of Ontario; Ontario Research Fund-Research Excellence; and the University of Toronto.; T.M. was supported through NASA grant NNX08AH30G. J.B.J. was supported by the FONDECYT grant 3085031. A.D.H. received additional support from a Natural Science and Engineering Research Council of Canada (NSERC) PGS-D scholarship. A.K. and B.P. were partially supported through NSF AST-0546035 and AST-0606975, respectively, for work on ACT. H.Q. and L.I. acknowledge partial support from FONDAP Centro de Astrofisica. N.S. is supported by the U.S. Department of Energy contract to SLAC no. DE-AC3-76SF00515. R.D. was supported by CONICYT, MECESUP, and Fundacion Andes. R.H. was supported by the Rhodes Trust. E.S. acknowledges support by NSF Physics Frontier Center grant PHY-0114422 to the Kavli Institute of Cosmological Physics. Y.T.L. acknowledges support from the World Premier International Research Center Initiative, MEXT, Japan. The ACT data will be made public through LAMBDA (http://lambda.gsfc.nasa.gov/) and the ACT Web site (http://www.physics.princeton.edu/act/). NR 72 TC 153 Z9 153 U1 0 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 20 PY 2011 VL 737 IS 2 AR 61 DI 10.1088/0004-637X/737/2/61 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 808WV UT WOS:000294013600015 ER PT J AU Sullivan, M Guy, J Conley, A Regnault, N Astier, P Balland, C Basa, S Carlberg, RG Fouchez, D Hardin, D Hook, IM Howell, DA Pain, R Palanque-Delabrouille, N Perrett, KM Pritchet, CJ Rich, J Ruhlmann-Kleider, V Balam, D Baumont, S Ellis, RS Fabbro, S Fakhouri, HK Fourmanoit, N Gonzalez-Gaitan, S Graham, ML Hudson, MJ Hsiao, E Kronborg, T Lidman, C Mourao, AM Neill, JD Perlmutter, S Ripoche, P Suzuki, N Walker, ES AF Sullivan, M. Guy, J. Conley, A. Regnault, N. Astier, P. Balland, C. Basa, S. Carlberg, R. G. Fouchez, D. Hardin, D. Hook, I. M. Howell, D. A. Pain, R. Palanque-Delabrouille, N. Perrett, K. M. Pritchet, C. J. Rich, J. Ruhlmann-Kleider, V. Balam, D. Baumont, S. Ellis, R. S. Fabbro, S. Fakhouri, H. K. Fourmanoit, N. Gonzalez-Gaitan, S. Graham, M. L. Hudson, M. J. Hsiao, E. Kronborg, T. Lidman, C. Mourao, A. M. Neill, J. D. Perlmutter, S. Ripoche, P. Suzuki, N. Walker, E. S. TI SNLS3: CONSTRAINTS ON DARK ENERGY COMBINING THE SUPERNOVA LEGACY SURVEY THREE-YEAR DATA WITH OTHER PROBES SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmological parameters; cosmology: observations; supernovae: general; surveys ID HUBBLE-SPACE-TELESCOPE; IA LIGHT CURVES; OBSERVATIONS COSMOLOGICAL INTERPRETATION; LUMINOUS RED GALAXIES; SKY SURVEY; WMAP OBSERVATIONS; HOST GALAXIES; ACCELERATING UNIVERSE; POWER-SPECTRUM; DATA RELEASE AB We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three-year sample (SNLS3) of Guy et al. and Conley et al. We use the 472 Type Ia supernovae (SNe Ia) in this sample, accounting for recently discovered correlations between SN Ia luminosity and host galaxy properties, and include the effects of all identified systematic uncertainties directly in the cosmological fits. Combining the SNLS3 data with the full WMAP7 power spectrum, the Sloan Digital Sky Survey luminous red galaxy power spectrum, and a prior on the Hubble constant H-0 from SHOES, in a flat universe we find Omega(m) = 0.269 +/- 0.015 and w = -1.061(-0.068)(+0.069) (where the uncertainties include all statistical and SN Ia systematic errors)-a 6.5% measure of the dark energy equation-of-state parameter w. The statistical and systematic uncertainties are approximately equal, with the systematic uncertainties dominated by the photometric calibration of the SN Ia fluxes-without these calibration effects, systematics contribute only a similar to 2% error in w. When relaxing the assumption of flatness, we find Omega(m) = 0.271 +/- 0.015, Omega(k) = -0.002 +/- 0.006, and w = -1.069(-0.092)(+0.091). Parameterizing the time evolution of w as w(a) = w(0) + w(a) (1-a) gives w(0) = -0.905 +/- 0.196, w(a) = -0.984(-1.097)(+1.094) in a flat universe. All of our results are consistent with a flat, w = -1 universe. The size of the SNLS3 sample allows various tests to be performed with the SNe segregated according to their light curve and host galaxy properties. We find that the cosmological constraints derived from these different subsamples are consistent. There is evidence that the coefficient, beta, relating SN Ia luminosity and color, varies with host parameters at >4 sigma significance (in addition to the known SN luminosity-host relation); however, this has only a small effect on the cosmological results and is currently a subdominant systematic. C1 [Sullivan, M.; Hook, I. M.; Ellis, R. S.; Walker, E. S.] Univ Oxford, Dept Phys Astrophys, Oxford OX1 3RH, England. [Guy, J.; Regnault, N.; Astier, P.; Balland, C.; Hardin, D.; Pain, R.; Fourmanoit, N.; Kronborg, T.; Ripoche, P.] Univ Paris 07, CNRS, Univ Paris 06, IN2P3,LPNHE, F-75252 Paris 05, France. [Conley, A.; Carlberg, R. G.; Perrett, K. M.; Gonzalez-Gaitan, S.] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada. [Conley, A.] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA. [Balland, C.] Univ Paris 11, F-91405 Orsay, France. [Basa, S.] CNRS, LAM, F-13388 Marseille 13, France. [Fouchez, D.] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France. [Hook, I. M.] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, PM, Italy. [Howell, D. A.; Graham, M. L.] Las Cumbres Observ Global Telescope Network, Goleta, CA 93117 USA. [Howell, D. A.; Graham, M. L.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Palanque-Delabrouille, N.; Rich, J.; Ruhlmann-Kleider, V.] Irfu SPP, Ctr Saclay, CEA, F-91191 Gif Sur Yvette, France. [Perrett, K. M.] DRDC Ottawa, Network Informat Operat, Ottawa, ON K1A 0Z4, Canada. [Pritchet, C. J.; Balam, D.; Fabbro, S.] Univ Victoria, Dept Phys & Astron, Victoria, BC V8T 1M8, Canada. [Baumont, S.] UJF, LPSC, CNRS, IN2P3,INPG, F-38026 St Martin Dheres, France. [Ellis, R. S.] CALTECH, Dept Astrophys, Pasadena, CA 91125 USA. [Fakhouri, H. K.; Hsiao, E.; Perlmutter, S.; Ripoche, P.; Suzuki, N.] LBNL, Berkeley, CA 94720 USA. [Hudson, M. J.] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada. [Hudson, M. J.] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada. [Lidman, C.] Australian Astron Observ, Epping, NSW 1710, Australia. [Mourao, A. M.] CENTRA Ctr Multidisciplinar Astrofis, P-1049001 Lisbon, Portugal. [Mourao, A. M.] IST, Dep Fis, P-1049001 Lisbon, Portugal. [Perlmutter, S.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Walker, E. S.] Scuola Normale Super Pisa, I-56126 Pisa, Italy. RP Sullivan, M (reprint author), Univ Oxford, Dept Phys Astrophys, Keble Rd, Oxford OX1 3RH, England. EM sullivan@astro.ox.ac.uk RI Carlberg, Raymond/I-6947-2012; Hudson, Michael/H-3238-2012; Perlmutter, Saul/I-3505-2015; Mourao, Ana/K-9133-2015; OI Carlberg, Raymond/0000-0002-7667-0081; Hudson, Michael/0000-0002-1437-3786; Perlmutter, Saul/0000-0002-4436-4661; Mourao, Ana/0000-0002-0855-1849; Sullivan, Mark/0000-0001-9053-4820 FU Royal Society; NSERC; CIAR; W. M. Keck Foundation; National Aeronautics and Space Administration FX This paper is based in part on observations obtained with MegaPrime/MegaCam, a joint project of CFHT and CEA/IRFU, at the Canada-France-Hawaii Telescope (CFHT), which is operated by the National Research Council (NRC) of Canada, the Institut National des Sciences de l'Univers of the Centre National de la Recherche Scientifique (CNRS) of France, and the University of Hawaii. M. S. acknowledges support from the Royal Society. Canadian collaboration members acknowledge support from NSERC and CIAR; French collaboration members from CNRS/IN2P3, CNRS/INSU, and CEA. This work is based in part on data products produced at the Canadian Astronomy Data Centre as part of the CFHT Legacy Survey, a collaborative project of NRC and CNRS. Based in part on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil), and CONICET (Argentina). Based on data from Gemini program IDs: GS-2003B-Q-8, GN-2003B-Q-9, GS-2004A-Q-11, GN-2004A-Q-19, GS-2004B-Q-31, GN-2004B-Q-16, GS-2005A-Q-11, GN-2005A-Q-11, GS-2005B-Q-6, GN-2005B-Q-7, GN-2006A-Q-7, and GN-2006B-Q-10. Based in part on observations made with ESO Telescopes at the Paranal Observatory under program IDs 171.A-0486 and 176.A-0589. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. NR 90 TC 234 Z9 234 U1 0 U2 11 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD AUG 20 PY 2011 VL 737 IS 2 AR 102 DI 10.1088/0004-637X/737/2/102 PG 19 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 808WV UT WOS:000294013600056 ER PT J AU Buckley, MR Hooper, D Tait, TMP AF Buckley, Matthew R. Hooper, Dan Tait, Tim M. P. TI Particle physics implications for CoGeNT, DAMA, and Fermi SO PHYSICS LETTERS B LA English DT Article DE Dark matter; Direct detection; CoGeNT; DAMA/LIBRA; Fermi Gamma-Ray Space Telescope ID DARK-MATTER AB Recent results from the CoGeNT Collaboration (as well as the annual modulation reported by DAMA/LIBRA) point toward dark matter with a light (5-10 GeV) mass and a relatively large elastic scattering cross section with nucleons (sigma similar to 10(-40) cm(2)). In order to possess this cross section, the dark matter must communicate with the Standard Model through mediating particles with small masses and/or large couplings. In this Letter, we explore with a model-independent approach the particle physics scenarios that could potentially accommodate these signals. We also discuss how such models could produce the gamma rays from the Galactic Center observed in the data of the Fermi Gamma-Ray Space Telescope. We find multiple particle physics scenarios in which each of these signals can be accounted for, and in which the dark matter can be produced thermally in the early Universe with an abundance equal to the measured cosmological density. (C) 2011 Elsevier B.V. All rights reserved. C1 [Buckley, Matthew R.; Hooper, Dan] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. [Hooper, Dan] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Tait, Tim M. P.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. RP Buckley, MR (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA. EM mbuckley@fnal.gov OI Buckley, Matthew/0000-0003-1109-3460 FU US Department of Energy [DE-FG02-95ER40896]; NASA [NAG5-10842]; NSF [PHY-0970171] FX We would like to thank Johan Alwall, Roni Harnik, Graham Kribs, Joachim Kopp, and Adam Martin for helpful discussions. M.B. and D.H. are supported by the US Department of Energy, including grant DE-FG02-95ER40896, and by NASA grant NAG5-10842. T.T. is supported by NSF grant PHY-0970171 and acknowledges the hospitality of the SLAC and Berkeley theory groups. NR 55 TC 43 Z9 43 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 19 PY 2011 VL 702 IS 4 BP 216 EP 219 DI 10.1016/j.physletb.2011.06.090 PG 4 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 826IP UT WOS:000295348100007 ER PT J AU Anastasiou, C Buehler, S Furlan, E Herzog, F Lazopoulos, A AF Anastasiou, Charalampos Buehler, Stephan Furlan, Elisabetta Herzog, Franz Lazopoulos, Achilleas TI Higgs production cross-section in a Standard Model with four generations at the LHC SO PHYSICS LETTERS B LA English DT Article DE Higgs production; Fourth generation; LHC ID BOSON PRODUCTION; PROTON COLLIDERS; HADRON COLLIDERS; QCD CORRECTIONS; DECAYS AB We present theoretical predictions for the Higgs boson production cross-section via gluon fusion at the LHC in a Standard Model with four generations. We include QCD corrections through NLO retaining the full dependence on the quark masses, and the NNLO corrections in the heavy quark effective theory approximation. We also include electroweak corrections through three loops. Electroweak and bottom-quark contributions are suppressed in comparison to the Standard Model with three generations. (C) 2011 Elsevier B.V. All rights reserved. C1 [Furlan, Elisabetta] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Anastasiou, Charalampos; Buehler, Stephan; Herzog, Franz; Lazopoulos, Achilleas] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland. RP Furlan, E (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. EM efurlan@phys.ethz.ch OI Furlan, Elisabetta/0000-0001-7036-9012 FU Swiss National Foundation [SNF 200020-126632]; DOE [DE-AC02-98CH10886] FX Research supported by the Swiss National Foundation under contract SNF 200020-126632 and the DOE under Grant DE-AC02-98CH10886. NR 26 TC 13 Z9 13 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 19 PY 2011 VL 702 IS 4 BP 224 EP 227 DI 10.1016/j.physletb.2011.06.097 PG 4 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 826IP UT WOS:000295348100009 ER PT J AU Buckley, M Perez, PF Hooper, D Neil, E AF Buckley, Matt Perez, Pavel Fileviez Hooper, Dan Neil, Ethan TI Dark forces at the Tevatron SO PHYSICS LETTERS B LA English DT Article ID LEPTOPHOBIC U(1)S; LEP; E6 AB A simple explanation of the W + dijet excess recently reported by the CDF collaboration involves the introduction of a new gauge boson with sizable couplings to quarks, but with no or highly suppressed couplings to leptons. Anomaly-free theories which include such a leptophobic gauge boson must also include additional particle content, which may include a stable and otherwise viable candidate for dark matter. Based on the couplings and mass of the Z' required to generate the CDF excess, we predict such a dark matter candidate to possess an elastic scattering cross section with nucleons on the order of sigma similar to 10(-40) cm(2), providing a natural explanation for the signals reported by the CoGeNT and DAMA/LIBRA collaborations. In this light, CDF may be observing the gauge boson responsible for the force which mediates the interactions between the dark and visible matter of our universe. (C) 2011 Elsevier B.V. All rights reserved. C1 [Perez, Pavel Fileviez] Univ Wisconsin, Dept Phys, Phenomenol Inst, Madison, WI 53706 USA. [Buckley, Matt; Hooper, Dan] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. [Hooper, Dan] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Neil, Ethan] Fermilab Natl Accelerator Lab, Particle Theory Grp, Batavia, IL 60510 USA. RP Perez, PF (reprint author), Univ Wisconsin, Dept Phys, Phenomenol Inst, 1150 Univ Ave, Madison, WI 53706 USA. EM fileviez@physics.wisc.edu OI Buckley, Matthew/0000-0003-1109-3460 FU US Department of Energy [DE-FG02-95ER40896]; NASA [NAG5-10842] FX We would like to thank Mark Wise, Joachim Kopp, and Graham Kribs for valuable discussions. P.F.P. would like to thank the Center for the Fundamental Laws of Nature at Harvard University and the Center for Theoretical Physics at MIT for their hospitality during the completion of this Letter. M.R.B. and D.H. are supported by the US Department of Energy and by NASA grant NAG5-10842. P.F.P. is supported in part by the US Department of Energy under contract DE-FG02-95ER40896. NR 40 TC 25 Z9 25 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 19 PY 2011 VL 702 IS 4 BP 256 EP 259 DI 10.1016/j.physletb.2011.07.012 PG 4 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 826IP UT WOS:000295348100014 ER PT J AU Ostoja-Starzewski, M Zubelewicz, A AF Ostoja-Starzewski, M. Zubelewicz, A. TI Powerless fluxes and forces, and change of scale in irreversible thermodynamics SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL LA English DT Article ID MAXIMUM-ENTROPY PRODUCTION; CONSTITUTIVE RELATIONS; DERIVATION; MODELS AB We show that the dissipation function of linear processes in continuum thermomechanics may be treated as the average of the statistically fluctuating dissipation rate on either coarse or small spatial scales. The first case involves thermodynamic orthogonality due to Ziegler, while the second one involves powerless forces in a general solution of the Clausius-Duhem inequality according to Poincare and Edelen. This formulation is demonstrated using the example of parabolic versus hyperbolic heat conduction. The existence of macroscopic powerless heat fluxes is traced here to the hidden dissipative processes at lower temporal and spatial scales. C1 [Ostoja-Starzewski, M.] Univ Illinois, Dept Mech Sci & Engn, Inst Condensed Matter Theory, Urbana, IL 61801 USA. [Ostoja-Starzewski, M.] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA. [Zubelewicz, A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Ostoja-Starzewski, M (reprint author), Univ Illinois, Dept Mech Sci & Engn, Inst Condensed Matter Theory, Urbana, IL 61801 USA. EM martinos@illinois.edu; alek@lanl.gov OI Ostoja-Starzewski, Martin/0000-0002-3493-363X FU NSF [CMMI-1030940] FX We have benefitted from constructive comments of two referees. This material is based upon work supported by NSF under grant CMMI-1030940. NR 20 TC 10 Z9 10 U1 0 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1751-8113 J9 J PHYS A-MATH THEOR JI J. Phys. A-Math. Theor. PD AUG 19 PY 2011 VL 44 IS 33 AR 335002 DI 10.1088/1751-8113/44/33/335002 PG 9 WC Physics, Multidisciplinary; Physics, Mathematical SC Physics GA 817ZZ UT WOS:000294719000004 ER PT J AU Wu, Y Stancil, PC Liebermann, HP Funke, P Rai, SN Buenker, RJ Schultz, DR Hui, Y Draganic, IN Havener, CC AF Wu, Y. Stancil, P. C. Liebermann, H. P. Funke, P. Rai, S. N. Buenker, R. J. Schultz, D. R. Hui, Y. Draganic, I. N. Havener, C. C. TI Theoretical investigation of charge transfer between N6+ and atomic hydrogen SO PHYSICAL REVIEW A LA English DT Article ID X-RAY-EMISSION; ENERGY-ELECTRON CAPTURE; CLOSE-COUPLING METHOD; CROSS-SECTIONS; SOLAR-SYSTEM; MERGED BEAMS; COLLISIONS; IONS; IONIZATION; H-2 AB Charge transfer due to collisions of ground-state N6+(1s S-2) with atomic hydrogen has been investigated theoretically using the quantum-mechanical molecular-orbital close-coupling (QMOCC) method, in which the adiabatic potentials and nonadiabatic couplings were obtained using the multireference single-and double-excitation configuration-interaction (MRDCI) approach. Total, n-, l-, and S-resolved cross sections have been obtained for energies between 10 meV/u and 10 keV/u. The QMOCC results were compared to available experimental and theoretical data as well as to merged-beams measurements and atomic-orbital close-coupling and classical trajectory Monte Carlo calculations. The accuracy of the QMOCC charge-transfer cross sections was found to be sensitive to the accuracy of the adiabatic potentials and couplings. Consequently, we developed a method to optimize the atomic basis sets used in the MRDCI calculations for highly charged ions. Since cross sections, especially those that are state selective, are necessary input for x-ray emission simulation of heliospheric and Martian exospheric spectra arising from solar wind ion-neutral gas collisions, a recommended set of state-selective cross sections, based on our evaluation of the calculations and measurements, is provided. C1 [Wu, Y.; Stancil, P. C.] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA. [Wu, Y.; Stancil, P. C.] Univ Georgia, Ctr Simulat Phys, Athens, GA 30602 USA. [Wu, Y.] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China. [Liebermann, H. P.; Funke, P.; Rai, S. N.; Buenker, R. J.] Berg Univ Wuppertal, Fachbereich Math & Nat Wissensch C, D-42097 Wuppertal, Germany. [Schultz, D. R.; Hui, Y.; Draganic, I. N.; Havener, C. C.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. RP Wu, Y (reprint author), Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA. EM yongwu@physast.uga.edu FU NASA [NNX09AV46G, NNG09WF24I, NNH07ZDA001N] FX This work was partially supported by NASA Grant Nos. NNX09AV46G, NNG09WF24I, and NNH07ZDA001N. NR 46 TC 11 Z9 11 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG 19 PY 2011 VL 84 IS 2 AR 022711 DI 10.1103/PhysRevA.84.022711 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 809KI UT WOS:000294053200004 ER PT J AU Zhang, GP Strubbe, DA Louie, SG George, TF AF Zhang, G. P. Strubbe, David A. Louie, Steven G. George, Thomas F. TI First-principles prediction of optical second-order harmonic generation in the endohedral N@C-60 compound SO PHYSICAL REVIEW A LA English DT Article ID DENSITY-FUNCTIONAL THEORY; 2ND-HARMONIC GENERATION; ULTRAFAST DYNAMICS; QUANTUM COMPUTER; ATOMIC NITROGEN; C-60; FULLERENES; HYPERPOLARIZABILITIES; SPECTROSCOPY; EXCITATION AB Non-linear-optical properties in C-60 have attracted enormous attention for over two decades. The endohedral complex N@C-60, with its remarkable thermal stability and spin-quartet ground state, is a candidate for future room-temperature quantum computing, but there has been no investigation of its non-linear-optical properties. Here, a first-principles calculation shows that N@C-60 is a promising material for nanoscale and ultrafast modulations. Excitation by a pump laser pulse of the nitrogen-atom vibration inside the C-60 cage transiently breaks inversion symmetry and can enable second-harmonic generation (SHG) from a probe pulse. Unlike the SHG observed in C-60 thin films, this harmonic signal is switched on and off periodically every 345 fs. For an fcc crystal of N@C-60, the second-order susceptibility chi((2)) is on the order of 10(-8) esu, similar to commercially used nonlinear materials. C1 [Zhang, G. P.] Indiana State Univ, Dept Phys, Terre Haute, IN 47809 USA. [Strubbe, David A.; Louie, Steven G.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Strubbe, David A.; Louie, Steven G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [George, Thomas F.] Univ Missouri, Dept Chem & Biochem, St Louis, MO 63121 USA. [George, Thomas F.] Univ Missouri, Dept Phys & Astron, Off Chancellor, St Louis, MO 63121 USA. [George, Thomas F.] Univ Missouri, Ctr Nanosci, St Louis, MO 63121 USA. RP Zhang, GP (reprint author), Indiana State Univ, Dept Phys, Terre Haute, IN 47809 USA. EM gpzhang@indstate.edu RI Octopus, TDDFT Code/E-2400-2011 FU US Department of Energy [DE-FG02-06ER46304, DE-AC02-05CH11231]; National Science Foundation [10-1006184]; GRF Program; Argonne Leadership Computing Facility [DE-AC02-06CH11357] FX We would like to thank Dr. E. D. Glendening (ISU), Dr. F. R. Clemente, Dr. D. J. Fox (Gaussian, Inc.) for numerous helpful communications on GAUSSIAN03, and A. Rubio for a critical reading of the manuscript. G.P.Z. also acknowledges help from Dr. Zhengji Zhao at Lawrence Berkeley National Laboratory. This work was supported by the US Department of Energy under Contracts No. DE-FG02-06ER46304 (G.P.Z.) and No. DE-AC02-05CH11231 (S. G. L.), and by the National Science Foundation under Grant No. 10-1006184 and the GRF Program (D. A. S.). We acknowledge computational resources from Indiana State University at the Center for Instruction, Research and Technology, the NERSC, the Argonne Leadership Computing Facility (Contract No. DE-AC02-06CH11357), and the University of California Shared Research Computing Services. NR 51 TC 10 Z9 10 U1 3 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG 19 PY 2011 VL 84 IS 2 AR 023837 DI 10.1103/PhysRevA.84.023837 PG 9 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 809KI UT WOS:000294053200011 ER PT J AU Hadjiev, VG Lv, B Chu, CW AF Hadjiev, V. G. Lv, Bing Chu, C. W. TI Electronic band structure of SrCu4As2 and KCu4As2: Metals with diversely doped CuAs layers SO PHYSICAL REVIEW B LA English DT Article ID SUPERCONDUCTIVITY AB We present a density functional study of SrCu4As2 and KCu4As2. The two isostructural compounds constitute a system that allows a broad range of doping of CuAs layers through nominally K+ for Sr2+ substitution. SrCu4As2 (space group R (3) over barm) is a metal having highly dispersive bands at E-F, two holelike Fermi sheets in the form of corrugated cylinders along Gamma-Z and electron pockets around F points in the rhombohedral Brillouin zone. Cu 3d states are located at 2.5 eV below E-F, giving little contribution to the bands near E-F. The F-point electron pockets disappear in KCu4As2 and the compound exhibits a large multisheet two-dimensional Fermi surface with a somewhat enhanced d character through Cu 3d-As 4p bonding. Despite shifting E-F toward the Cu 3d bands in KCu4As2, the compound remains with completely populated d shells and it is unlikely to exhibit superconductivity of a type similar to that in the ternary iron arsenides. C1 [Hadjiev, V. G.; Lv, Bing; Chu, C. W.] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA. [Hadjiev, V. G.] Univ Houston, Dept Mech Engn, Houston, TX 77204 USA. [Lv, Bing; Chu, C. W.] Univ Houston, Dept Phys, Houston, TX 77204 USA. [Chu, C. W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Hadjiev, VG (reprint author), Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA. RI Hadjiev, Viktor/A-7069-2008 OI Hadjiev, Viktor/0000-0001-8579-9357 FU State of Texas through the Texas Center for Superconductivity at the University of Houston; T. L. L. Temple Foundation; John J. and Rebecca Moores Endowment; US Air Force Office of Scientific Research FX This work was supported in part by the State of Texas through the Texas Center for Superconductivity at the University of Houston, the T. L. L. Temple Foundation, the John J. and Rebecca Moores Endowment and the US Air Force Office of Scientific Research. NR 18 TC 1 Z9 1 U1 1 U2 12 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 19 PY 2011 VL 84 IS 7 AR 073105 DI 10.1103/PhysRevB.84.073105 PG 4 WC Physics, Condensed Matter SC Physics GA 809LF UT WOS:000294056400001 ER PT J AU Hsueh, HC Guo, GY Louie, SG AF Hsueh, H. C. Guo, G. Y. Louie, Steven G. TI Excitonic effects in the optical properties of a SiC sheet and nanotubes SO PHYSICAL REVIEW B LA English DT Article ID QUASI-PARTICLE ENERGIES; ELECTRON-HOLE EXCITATIONS; CARBON NANOTUBES; SILICON-CARBIDE; BAND-GAPS; SPECTRA; SEMICONDUCTORS; INSULATORS; 1ST-PRINCIPLES; NANORIBBONS AB The quasiparticle band structure and optical properties of single-walled zigzag and armchair SiC nanotubes (SiC-NTs) as well as a single SiC sheet are investigated by ab initio many-body calculations using the GW and the GW plus Bethe-Salpeter equation approaches, respectively. Significant GW quasiparticle corrections, of more than 1.0 eV, to the Kohn-Sham band gaps from the local density approximation (LDA) calculations are found. The GW self-energy corrections transform the SiC sheet from an indirect LDA band gap to a direct band gap material. Furthermore, the quasiparticle band gaps of SiC-NTs with different chiralities behave very differently as a function of tube diameter, and this can be attributed to the difference in the curvature-induced orbital rehybridization among the different chiral nanotubes. The calculated optical absorption spectra are dominated by discrete exciton peaks due to exciton states with a high binding energy, up to 2.0 eV, in the SiC sheet and SiC-NTs. The formation of strongly bound excitons is attributed to the enhanced electron-hole interaction in these low-dimensional systems. Remarkably, the excited electron amplitude of the exciton wave function is found to peak on Si atoms near the hole position (which is on the C site) in zigzag SiC-NTs, indicating a charge transfer from an anion (hole) to its neighboring cations by photoexcitation. In contrast, this pronounced peak structure disappears in the exciton wave function in armchair SiC-NTs. Furthermore, in armchair SiC-NTs, the bound exciton wave functions are more localized and also strongly cylindrically asymmetric. The high excitation energy, similar to 3.0 eV, of the first bright exciton, with no dark exciton below it, suggests that small-radius armchair SiC-NTs could be useful for optical devices working in the UV regime. On the other hand, zigzag SiC-NTs have many dark excitons below the first bright exciton and hence may have potential applications in tunable optoelectric devices ranging from infrared to UV frequencies by external perturbations. C1 [Hsueh, H. C.] Tamkang Univ, Dept Phys, Tamsui 25137, Taiwan. [Guo, G. Y.] Natl Chengchi Univ, Grad Inst Appl Phys, Taipei 11605, Taiwan. [Guo, G. Y.] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan. [Louie, Steven G.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Louie, Steven G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Hsueh, HC (reprint author), Tamkang Univ, Dept Phys, Tamsui 25137, Taiwan. EM hchsueh@mail.tku.edu.tw; gyguo@phys.ntu.edu.tw OI GUO, GUANG-YU/0000-0003-3097-0916 FU National Science Council; NCTS of the ROC; NCHC of the ROC; Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, US Department of Energy [DE-AC02-05CH11231] FX We thank Jack Deslippe for helpful discussions on performing GW + BSE calculations in BerkeleyGW code. H. C. H. and G.Y.G. thank the National Science Council and NCTS of the ROC for support and, also, the NCHC of the ROC for CPU time. S. G. L. was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, US Department of Energy, under Contract No. DE-AC02-05CH11231. NR 49 TC 44 Z9 44 U1 4 U2 46 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 19 PY 2011 VL 84 IS 8 AR 085404 DI 10.1103/PhysRevB.84.085404 PG 10 WC Physics, Condensed Matter SC Physics GA 809LL UT WOS:000294057100015 ER PT J AU Meng, Y Li, J Tan, A Park, J Jin, E Son, H Doran, A Scholl, A Arenholz, E Zhao, HW Hwang, C Qiu, ZQ AF Meng, Y. Li, J. Tan, A. Park, J. Jin, E. Son, H. Doran, A. Scholl, A. Arenholz, E. Zhao, H. W. Hwang, Chanyong Qiu, Z. Q. TI FeMn/Fe/Co/Cu(1,1,10) films studied using the magneto-optic Kerr effect and photoemission electron microscopy SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC-ANISOTROPY; FE FILMS; FCC FE; INTERFACES; INTERLAYER AB FeMn/Fe/Co/Cu(1,1,10) films were grown epitaxially and investigated using the magneto-optic Kerr effect and photoemission electron microscopy. We found that FeMn/Fe/Co/Cu(1,1,10) exhibits the same properties as FeMn/Co/Cu(1,1,10) for the ferromagnetic phase of the face centered cubic (fcc) Fe film but a different property for the non-ferromagnetic phase of the fcc Fe film. This result indicates that the characteristic property reported in the literature for FeMn/Co/Cu(001) comes from the FeMn spin structure and is independent of the ferromagnetic layer. C1 [Meng, Y.; Li, J.; Tan, A.; Park, J.; Jin, E.; Son, H.; Qiu, Z. Q.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Meng, Y.; Zhao, H. W.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. [Doran, A.; Scholl, A.; Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Hwang, Chanyong] Korea Res Inst Stand & Sci, Taejon 305340, South Korea. RP Meng, Y (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM qiu@socrates.berkeley.edu RI Meng, Yang/A-8308-2015; Scholl, Andreas/K-4876-2012; Qiu, Zi Qiang/O-4421-2016 OI Qiu, Zi Qiang/0000-0003-0680-0714 FU National Science Foundation [DMR-0405259]; US Department of Energy [DE-AC03-76SF00098]; National Natural Science Foundation of China and Shanghai Science; KICOSMEST of Korea FX This work is supported by National Science Foundation Grant No. DMR-0405259, US Department of Energy Grant No. DE-AC03-76SF00098, National Natural Science Foundation of China and Shanghai Science, and KICOS&MEST of Korea. NR 28 TC 2 Z9 2 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 19 PY 2011 VL 84 IS 6 AR 064416 DI 10.1103/PhysRevB.84.064416 PG 6 WC Physics, Condensed Matter SC Physics GA 809KV UT WOS:000294055000009 ER PT J AU Petkovic, A Chtchelkatchev, NM Vinokur, VM AF Petkovic, A. Chtchelkatchev, N. M. Vinokur, V. M. TI Far-from-equilibrium superconductor in fluctuational regime SO PHYSICAL REVIEW B LA English DT Article ID THERMAL-CONDUCTIVITY; BI2SR2CACU2O8; DIRTY AB We derive Ginzburg-Landau-type action for a two-dimensional disordered superconductor under far-from-equilibrium conditions in a fluctuational regime. Then, utilizing it, we calculate fluctuation-induced density of states and Maki-Thomson- and Aslamazov-Larkin-type contributions to the in-plane electrical conductivity. We apply our approach to a thin superconducting film sandwiched between a gate and a substrate, which have different temperatures and different electrochemical potentials. C1 [Petkovic, A.] Ecole Normale Super, CNRS, Phys Theor Lab, FR-75005 Paris, France. [Chtchelkatchev, N. M.; Vinokur, V. M.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Chtchelkatchev, N. M.] Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia. [Chtchelkatchev, N. M.] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117940, Russia. RP Petkovic, A (reprint author), Ecole Normale Super, CNRS, Phys Theor Lab, 24 Rue Lhomond, FR-75005 Paris, France. RI Chtchelkatchev, Nikolay/L-1273-2013 OI Chtchelkatchev, Nikolay/0000-0002-7242-1483 FU ANR [09-BLAN-0097-01/2]; Russian Foundation for Basic Research [10-02-00700]; Russian Federation [MK-7674.2010.2]; Russian Academy of Sciences; U.S. Department of Energy Office of Science [DE-AC02-06CH11357] FX This work was supported by the ANR Grant No. 09-BLAN-0097-01/2, the Russian Foundation for Basic Research (Grant No. 10-02-00700), the President of the Russian Federation (Grant No. MK-7674.2010.2), the Russian Academy of Sciences programs, and the U.S. Department of Energy Office of Science through the Contract No. DE-AC02-06CH11357. NR 22 TC 3 Z9 3 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 19 PY 2011 VL 84 IS 6 AR 064510 DI 10.1103/PhysRevB.84.064510 PG 11 WC Physics, Condensed Matter SC Physics GA 809KV UT WOS:000294055000012 ER PT J AU Steele, AJ Lancaster, T Blundell, SJ Baker, PJ Pratt, FL Baines, C Conner, MM Southerland, HI Manson, JL Schlueter, JA AF Steele, A. J. Lancaster, T. Blundell, S. J. Baker, P. J. Pratt, F. L. Baines, C. Conner, M. M. Southerland, H. I. Manson, J. L. Schlueter, J. A. TI Magnetic order in quasi-two-dimensional molecular magnets investigated with muon-spin relaxation SO PHYSICAL REVIEW B LA English DT Article ID LATTICE HEISENBERG-ANTIFERROMAGNET; N-OXIDE COMPLEXES; SQUARE-LATTICE; THEORETICAL CHARACTERIZATION; COORDINATION POLYMER; LOW-TEMPERATURES; QUANTUM MAGNETS; ZERO-FIELD; PYRAZINE; SYSTEMS AB We present the results of a muon-spin relaxation (mu+SR) investigation into magnetic ordering in several families of layered quasi-two-dimensional molecular antiferromagnets based on transition-metal ions such as S = 1/2 Cu2+ bridged with organic ligands such as pyrazine. In many of these materials magnetic ordering is difficult to detect with conventional magnetic probes. In contrast, mu+SR allows us to identify ordering temperatures and study the critical behavior close to T-N. Combining this with measurements of in-plane magnetic exchange J and predictions from quantum Monte Carlo simulations we may assess the degree of isolation of the 2D layers through estimates of the effective inter-layer exchange coupling and in-layer correlation lengths at T-N. We also identify the likely metal-ion moment sizes and muon stopping sites in these materials, based on probabilistic analysis of the magnetic structures and of muon-fluorine dipole-dipole coupling in fluorinated materials. C1 [Steele, A. J.; Lancaster, T.; Blundell, S. J.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England. [Baker, P. J.; Pratt, F. L.] STFC Rutherford Appleton Lab, ISIS Pulsed Neutron & Muon Source, Didcot OX11 0QX, Oxon, England. [Baines, C.] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland. [Conner, M. M.; Southerland, H. I.; Manson, J. L.] Eastern Washington Univ, Dept Chem & Biochem, Cheney, WA 99004 USA. [Schlueter, J. A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Steele, AJ (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England. RI Baker, Peter/E-4216-2010 OI Baker, Peter/0000-0002-2306-2648 FU Engineering and Physical Sciences Research Council, UK; Science and Technology Facilities Council; European Commission [CP-CSA_INFRA-2008-1.1.1, 226507-NMI3]; National Science Foundation [DMR-1005825]; UChicago Argonne, LLC; Operator of Argonne National Laboratory ("Argonne"). Argonne; US Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX This work was partly supported by the Engineering and Physical Sciences Research Council, UK. Experiments at the ISIS Pulsed Neutron and Muon Source were supported by a beam-time allocation from the Science and Technology Facilities Council. Further experiments were performed at the Swiss Muon Source, Paul Scherrer Institute, Villigen, Switzerland. This research project has been supported by the European Commission under the 7th Framework Programme through the "Research Infrastructures" action of the "Capacities" Programme, Contract No. CP-CSA_INFRA-2008-1.1.1 Number 226507-NMI3. The work at EWU was supported by the National Science Foundation under Grant No. DMR-1005825. Work supported by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a US Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The authors would like to thank Paul Goddard, Ross McDonald, William Hayes, and Johannes Moller for useful discussions. NR 53 TC 21 Z9 21 U1 1 U2 14 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 19 PY 2011 VL 84 IS 6 AR 064412 DI 10.1103/PhysRevB.84.064412 PG 21 WC Physics, Condensed Matter SC Physics GA 809KV UT WOS:000294055000005 ER PT J AU Stephenson, GB Highland, MJ AF Stephenson, G. Brian Highland, Matthew J. TI Equilibrium and stability of polarization in ultrathin ferroelectric films with ionic surface compensation SO PHYSICAL REVIEW B LA English DT Article ID PHASE-TRANSITION; THIN-FILMS; PBTIO3; FIELD AB Thermodynamic theory is developed for the ferroelectric phase transition of an ultrathin film in equilibrium with a chemical environment that supplies ionic species to compensate its surface. Equations of state and free energy expressions are developed based on Landau-Ginzburg-Devonshire theory, using electrochemical equilibria to provide ionic compensation boundary conditions. Calculations are presented for a monodomain PbTiO(3) (001) film coherently strained to SrTiO(3) with its exposed surface and its electronically conducting bottom electrode in equilibrium with a controlled oxygen partial pressure. The stability and metastability boundaries of phases of different polarization are determined as a function of temperature, oxygen partial pressure, and film thickness. Phase diagrams showing polarization and internal electric field are presented. At temperatures below a thickness-dependent Curie point, high or low oxygen partial pressure stabilizes positive or negative polarization, respectively. Results are compared to the standard cases of electronic compensation controlled by either an applied voltage or charge across two electrodes. Ionic surface compensation through chemical equilibrium with an environment introduces new features into the phase diagram. In ultrathin films, a stable nonpolar phase can occur between the positive and negative polar phases when varying the external chemical potential at fixed temperature, under conditions where charged surface species are not present in sufficient concentration to stabilize a polar phase. C1 [Stephenson, G. Brian; Highland, Matthew J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Stephenson, GB (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM stephenson@anl.gov FU US Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-06CH11357] FX We have benefited greatly from discussions with and experimental results obtained by our collaborators T. T. Fister, M.-I. Richard, D. D. Fong, P. H. Fuoss, C. Thompson, J. A. Eastman, and S. K. Streiffer, as well as comments from M. Stengel and D. Vanderbilt. Work supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-AC02-06CH11357. NR 42 TC 40 Z9 40 U1 2 U2 29 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 19 PY 2011 VL 84 IS 6 AR 064107 DI 10.1103/PhysRevB.84.064107 PG 15 WC Physics, Condensed Matter SC Physics GA 809KV UT WOS:000294055000001 ER PT J AU Larkoski, AJ Peskin, ME AF Larkoski, Andrew J. Peskin, Michael E. TI Antenna splitting functions for massive particles SO PHYSICAL REVIEW D LA English DT Article ID QCD; SIMULATION; AMPLITUDES; DECAY AB An antenna shower is a parton shower in which the basic move is a color-coherent 2 -> 3 parton splitting process. In this paper, we give compact forms for the spin-dependent antenna splitting functions involving massive partons of spin 0 and spin 1/2. C1 [Larkoski, Andrew J.; Peskin, Michael E.] Stanford Univ, SLAC, Menlo Pk, CA 94025 USA. RP Larkoski, AJ (reprint author), Stanford Univ, SLAC, Menlo Pk, CA 94025 USA. OI Peskin, Michael/0000-0001-6403-6828 FU US Department of Energy [DE-AC02-76SF00515]; National Science Foundation FX The authors thank Kassa Betre, Stefan Hoeche, and Jared Kaplan for helpful conversations. This work is supported by the US Department of Energy under Contract No. DE-AC02-76SF00515. A. L. is also supported by the National Science Foundation. NR 29 TC 4 Z9 4 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 19 PY 2011 VL 84 IS 3 AR 034034 DI 10.1103/PhysRevD.84.034034 PG 16 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 809LW UT WOS:000294058600003 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Das, A Davies, G De, K De Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S Deterre, C DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Garcia-Bellido, A Gavrilov, V Gay, P Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guillemin, T Guo, F Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jamin, D Jayasinghe, A Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Jung, AW Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kulikov, S Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M de Sa, RL Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Miconi, F Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Padilla, M Pal, A Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petridis, K Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Polozov, P Popov, AV Prewitt, M Price, D Prokopenko, N Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Rominsky, M Ross, A Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Salcido, P Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Soustruznik, K Stark, J Stolin, V Stoyanova, DA Strauss, M Strom, D Stutte, L Suter, L Svoisky, P Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsai, YT Tsybychev, D Tuchming, B Tully, C Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vokac, P Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L White, A Wicke, D Williams, MRJ Wilson, GW Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, YA Ye, Z Yin, H Yip, K Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. Chevalier-Thery, S. Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Das, A. Davies, G. De, K. De Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. Deterre, C. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph. Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guillemin, T. Guo, F. Gutierrez, G. Gutierrez, P. Haas, A. Hagopian, S. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J. M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A. P. Heintz, U. Hensel, C. Heredia-De La Cruz, I. Herner, K. Hesketh, G. Hildreth, M. D. Hirosky, R. Hoang, T. Hobbs, J. D. Hoeneisen, B. Hohlfeld, M. Hubacek, Z. Huske, N. Hynek, V. Iashvili, I. Illingworth, R. Ito, A. S. Jabeen, S. Jaffre, M. Jamin, D. Jayasinghe, A. Jesik, R. Johns, K. Johnson, M. Johnston, D. Jonckheere, A. Jonsson, P. Joshi, J. Jung, A. W. Juste, A. Kaadze, K. Kajfasz, E. Karmanov, D. Kasper, P. A. Katsanos, I. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y. N. Khatidze, D. Kirby, M. H. Kohli, J. M. Kozelov, A. V. Kraus, J. Kulikov, S. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V. A. Kvita, J. Lammers, S. Landsberg, G. Lebrun, P. Lee, H. S. Lee, S. W. Lee, W. M. Lellouch, J. Li, L. Li, Q. Z. Lietti, S. M. Lim, J. K. Lincoln, D. Linnemann, J. Lipaev, V. V. Lipton, R. Liu, Y. Liu, Z. Lobodenko, A. Lokajicek, M. de Sa, R. Lopes Lubatti, H. J. Luna-Garcia, R. Lyon, A. L. Maciel, A. K. A. Mackin, D. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V. L. Maravin, Y. Martinez-Ortega, J. McCarthy, R. McGivern, C. L. Meijer, M. M. Melnitchouk, A. Menezes, D. Mercadante, P. G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N. K. Muanza, G. S. Mulhearn, M. Nagy, E. Naimuddin, M. Narain, M. Nayyar, R. Neal, H. A. Negret, J. P. Neustroev, P. Novaes, S. F. Nunnemann, T. Obrant, G. Orduna, J. Osman, N. Osta, J. Otero y Garzon, G. J. Padilla, M. Pal, A. Parashar, N. Parihar, V. Park, S. K. Parsons, J. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, K. Peters, Y. Petridis, K. Petrillo, G. Petroff, P. Piegaia, R. Piper, J. Pleier, M. -A. Podesta-Lerma, P. L. M. Podstavkov, V. M. Polozov, P. Popov, A. V. Prewitt, M. Price, D. Prokopenko, N. Protopopescu, S. Qian, J. Quadt, A. Quinn, B. Rangel, M. S. Ranjan, K. Ratoff, P. N. Razumov, I. Renkel, P. Rijssenbeek, M. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Salcido, P. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Precise Measurement of the Top Quark Mass in the Dilepton Channel at D0 SO PHYSICAL REVIEW LETTERS LA English DT Article ID DETECTOR; FERMILAB AB We measure the top quark mass (m(t)) in p (p) over bar collisions at a center of mass energy root s = 1.96 TeV using dilepton t (t) over bar -> W(+)bW(-)b(-) -> l(+)nu(l)bl(-)(nu) over bar (l)(b) over bar events, where l denotes an electron, a muon, or a tau that decays leptonically. The data correspond to an integrated luminosity of 5.4 fb(-1) collected with the D0 detector at the Fermilab Tevatron Collider. We obtain m(t) = 174.0 +/- 1.8(stat) +/- 2.4(syst) GeV, which is in agreement with the current world average m(t) = 173.3 +/- 1.1 GeV. This is currently the most precise measurement of mt in the dilepton channel. C1 [Otero y Garzon, G. J.; Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina. [Alves, G. A.; Maciel, A. K. A.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil. [Barreto, J.; Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil. [Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Lietti, S. M.; Novaes, S. F.; Santos, A. S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil. [Beale, S.; Liu, Z.; Taylor, W.] Simon Fraser Univ, Vancouver, BC, Canada. [Beale, S.; Liu, Z.; Taylor, W.] York Univ, Toronto, ON M3J 2R7, Canada. [Han, L.; Liu, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Avila, C.; Negret, J. P.] Univ Los Andes, Bogota, Colombia. 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[Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Juste, A.] Inst Catalana Recerca & Estudis Avancats ICREA, Barcelona, Spain. [Juste, A.] Inst Fis Altes Energies IFAE, Barcelona, Spain. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Ratoff, P. N.; Ross, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Scanlon, T.] Imperial Coll London, London SW7 2AZ, England. [Harder, K.; Head, T.; Hesketh, G.; Peters, K.; Peters, Y.; Petridis, K.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Jung, A. W.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Salcido, P.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Carrasco-Lizarraga, M. A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Wood, D. R.] NE Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Eads, M.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; de Sa, R. Lopes; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Parihar, V.; Partridge, R.; Zivkovic, L.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Pal, A.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Orduna, J.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Univ Buenos Aires, Buenos Aires, DF, Argentina. RI Li, Liang/O-1107-2015; Juste, Aurelio/I-2531-2015; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Fisher, Wade/N-4491-2013; De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Gerbaudo, Davide/J-4536-2012; Gutierrez, Phillip/C-1161-2011; bu, xuebing/D-1121-2012; Mercadante, Pedro/K-1918-2012; Alves, Gilvan/C-4007-2013; Yip, Kin/D-6860-2013; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; OI Li, Liang/0000-0001-6411-6107; Sawyer, Lee/0000-0001-8295-0605; Hedin, David/0000-0001-9984-215X; Juste, Aurelio/0000-0002-1558-3291; Begel, Michael/0000-0002-1634-4399; de Jong, Sijbrand/0000-0002-3120-3367; Landsberg, Greg/0000-0002-4184-9380; Blessing, Susan/0000-0002-4455-7279; Duperrin, Arnaud/0000-0002-5789-9825; Hoeneisen, Bruce/0000-0002-6059-4256; Beuselinck, Raymond/0000-0003-2613-7446; Heinson, Ann/0000-0003-4209-6146; Dudko, Lev/0000-0002-4462-3192; De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Gerbaudo, Davide/0000-0002-4463-0878; Yip, Kin/0000-0002-8576-4311; Novaes, Sergio/0000-0003-0471-8549; Williams, Mark/0000-0001-5448-4213; Weber, Michele/0000-0002-2770-9031; Grohsjean, Alexander/0000-0003-0748-8494; Melnychuk, Oleksandr/0000-0002-2089-8685; Bassler, Ursula/0000-0002-9041-3057; Price, Darren/0000-0003-2750-9977; Filthaut, Frank/0000-0003-3338-2247; Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne, Camille/0000-0003-2368-2617; grannis, paul/0000-0003-4692-2142; Qian, Jianming/0000-0003-4813-8167; Evans, Harold/0000-0003-2183-3127; Malik, Sudhir/0000-0002-6356-2655; Blazey, Gerald/0000-0002-7435-5758; Wahl, Horst/0000-0002-1345-0401; Bean, Alice/0000-0001-5967-8674; Gershtein, Yuri/0000-0002-4871-5449; Heredia De La Cruz, Ivan/0000-0002-8133-6467; Haas, Andrew/0000-0002-4832-0455 FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); FASI (Russia); Rosatom (Russia); RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP (Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF (Korea); KOSEF (Korea); CONICET (Argentina); UBACyT (Argentina); FOM (The Netherlands); STFC (United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic); GACR (Czech Republic); CRC Program (Canada); NSERC (Canada); BMBF (Germany); DFG (Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS (China); CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom, and RFBR (Russia); CNPq, FAPERJ, FAPESP, and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 29 TC 17 Z9 17 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 19 PY 2011 VL 107 IS 8 AR 082004 DI 10.1103/PhysRevLett.107.082004 PG 7 WC Physics, Multidisciplinary SC Physics GA 809OV UT WOS:000294067500004 PM 21929164 ER PT J AU Pan, YD Birdsey, RA Fang, JY Houghton, R Kauppi, PE Kurz, WA Phillips, OL Shvidenko, A Lewis, SL Canadell, JG Ciais, P Jackson, RB Pacala, SW McGuire, AD Piao, SL Rautiainen, A Sitch, S Hayes, D AF Pan, Yude Birdsey, Richard A. Fang, Jingyun Houghton, Richard Kauppi, Pekka E. Kurz, Werner A. Phillips, Oliver L. Shvidenko, Anatoly Lewis, Simon L. Canadell, Josep G. Ciais, Philippe Jackson, Robert B. Pacala, Stephen W. McGuire, A. David Piao, Shilong Rautiainen, Aapo Sitch, Stephen Hayes, Daniel TI A Large and Persistent Carbon Sink in the World's Forests SO SCIENCE LA English DT Article ID TROPICAL FORESTS; UNITED-STATES; CO2 EMISSIONS; DROUGHT; LAND; SENSITIVITY; MANAGEMENT; ATMOSPHERE; INCREASE; BALANCE AB The terrestrial carbon sink has been large in recent decades, but its size and location remain uncertain. Using forest inventory data and long-term ecosystem carbon studies, we estimate a total forest sink of 2.4 +/- 0.4 petagrams of carbon per year (Pg C year(-1)) globally for 1990 to 2007. We also estimate a source of 1.3 +/- 0.7 Pg C year(-1) from tropical land-use change, consisting of a gross tropical deforestation emission of 2.9 +/- 0.5 Pg C year(-1) partially compensated by a carbon sink in tropical forest regrowth of 1.6 +/- 0.5 Pg C year(-1). Together, the fluxes comprise a net global forest sink of 1.1 +/- 0.8 Pg C year(-1), with tropical estimates having the largest uncertainties. Our total forest sink estimate is equivalent in magnitude to the terrestrial sink deduced from fossil fuel emissions and land-use change sources minus ocean and atmospheric sinks. C1 [Pan, Yude; Birdsey, Richard A.] US Forest Serv, USDA, Newtown Sq, PA 19073 USA. [Fang, Jingyun; Piao, Shilong] Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China. [Fang, Jingyun] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China. [Houghton, Richard] Woods Hole Res Ctr, Falmouth, MA 02543 USA. [Kauppi, Pekka E.; Rautiainen, Aapo] Univ Helsinki, Helsinki, Finland. [Kurz, Werner A.] Nat Resources Canada, Canadian Forest Serv, Victoria, BC V8Z 1M5, Canada. [Phillips, Oliver L.; Lewis, Simon L.; Sitch, Stephen] Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England. [Shvidenko, Anatoly] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria. [Canadell, Josep G.] Commonwealth Sci & Ind Res Org Marine & Atmospher, Global Carbon Project, Canberra, ACT, Australia. [Ciais, Philippe] Lab Sci Climat & Environm CEA UVSQ CNRS, Gif Sur Yvette, France. [Jackson, Robert B.] Duke Univ, Durham, NC 27708 USA. [Pacala, Stephen W.] Princeton Univ, Princeton, NJ 08544 USA. [McGuire, A. David] Univ Alaska, US Geol Survey, Alaska Cooperat Fish & Wildlife Res Unit, Fairbanks, AK 99775 USA. [Hayes, Daniel] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Pan, YD (reprint author), US Forest Serv, USDA, Newtown Sq, PA 19073 USA. EM ypan@fs.fed.us RI Shvidenko, Anatoly/I-1505-2016; Canadell, Josep/E-9419-2010; Hayes, Daniel/B-8968-2012; Namikawa, Laercio/C-5559-2013; Phillips, Oliver/A-1523-2011; Pan, Yude/F-6145-2015; Sitch, Stephen/F-8034-2015 OI Shvidenko, Anatoly/0000-0001-7640-2151; Canadell, Josep/0000-0002-8788-3218; Lewis, Simon/0000-0002-8066-6851; Kurz, Werner/0000-0003-4576-7849; Namikawa, Laercio/0000-0001-7847-1804; Phillips, Oliver/0000-0002-8993-6168; Sitch, Stephen/0000-0003-1821-8561 FU U.S. Forest Service, NASA [31021001]; National Basic Research Program of China on Global Change [2010CB50600]; Gordon and Betty Moore Foundation; Peking Univ.; Princeton Univ. FX This study is the major output of two workshops at Peking Univ. and Princeton Univ. Y.P., R.A.B., and J.F. were lead authors and workshop organizers; Y.P., R.A.B., J.F., R.H., P.E.K., W.A.K., O.L.P., A.S., and S.L.L. contributed primary data sets and analyses; J.G.C., P.C., R.B.J., and S.W.P. contributed noteworthy ideas to improve the study; A.D.M., S.P., A.R., S.S., and D.H. provided results of modeling or data analysis relevant to the study; and all authors contributed in writing, discussions, or comments. We thank K. McCullough for helping to make the map in Fig. 1 and C. Wayson for helping to develop a Monte-Carlo analysis. This work was supported in part by the U.S. Forest Service, NASA (grant 31021001), the National Basic Research Program of China on Global Change (2010CB50600), the Gordon and Betty Moore Foundation, Peking Univ., and Princeton Univ. This work is a contribution toward the Global Carbon Project's aim of fostering an international framework to study the global carbon cycle. NR 37 TC 1215 Z9 1334 U1 183 U2 1111 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD AUG 19 PY 2011 VL 333 IS 6045 BP 988 EP 993 DI 10.1126/science.1201609 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 808TD UT WOS:000294000400048 PM 21764754 ER PT J AU Zhao, LY He, R Rim, KT Schiros, T Kim, KS Zhou, H Gutierrez, C Chockalingam, SP Arguello, CJ Palova, L Nordlund, D Hybertsen, MS Reichman, DR Heinz, TF Kim, P Pinczuk, A Flynn, GW Pasupathy, AN AF Zhao, Liuyan He, Rui Rim, Kwang Taeg Schiros, Theanne Kim, Keun Soo Zhou, Hui Gutierrez, Christopher Chockalingam, S. P. Arguello, Carlos J. Palova, Lucia Nordlund, Dennis Hybertsen, Mark S. Reichman, David R. Heinz, Tony F. Kim, Philip Pinczuk, Aron Flynn, George W. Pasupathy, Abhay N. TI Visualizing Individual Nitrogen Dopants in Monolayer Graphene SO SCIENCE LA English DT Article ID SCANNING TUNNELING MICROSCOPE; X-RAY SPECTROSCOPY; DOPED GRAPHENE; FILMS; SCATTERING; GRAPHITE AB In monolayer graphene, substitutional doping during growth can be used to alter its electronic properties. We used scanning tunneling microscopy, Raman spectroscopy, x-ray spectroscopy, and first principles calculations to characterize individual nitrogen dopants in monolayer graphene grown on a copper substrate. Individual nitrogen atoms were incorporated as graphitic dopants, and a fraction of the extra electron on each nitrogen atom was delocalized into the graphene lattice. The electronic structure of nitrogen-doped graphene was strongly modified only within a few lattice spacings of the site of the nitrogen dopant. These findings show that chemical doping is a promising route to achieving high-quality graphene films with a large carrier concentration. C1 [Zhao, Liuyan; He, Rui; Kim, Keun Soo; Zhou, Hui; Gutierrez, Christopher; Chockalingam, S. P.; Arguello, Carlos J.; Heinz, Tony F.; Kim, Philip; Pinczuk, Aron; Pasupathy, Abhay N.] Columbia Univ, Dept Phys, New York, NY 10027 USA. [Rim, Kwang Taeg; Palova, Lucia; Reichman, David R.; Flynn, George W.] Columbia Univ, Dept Chem, New York, NY 10027 USA. [Schiros, Theanne] Columbia Univ, Energy Frontier Res Ctr, New York, NY 10027 USA. [Kim, Keun Soo] Sejong Univ, Dept Phys, Seoul 143747, South Korea. [Kim, Keun Soo] Sejong Univ, Graphene Res Inst, Seoul 143747, South Korea. [Nordlund, Dennis] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Light Source, Menlo Pk, CA 94025 USA. [Hybertsen, Mark S.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Heinz, Tony F.] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA. [Pinczuk, Aron] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. RP Pasupathy, AN (reprint author), Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA. EM pasupathy@phys.columbia.edu RI bartelsdoe, ludwig/F-8008-2011; He, Rui/B-2021-2012; Kim, Keun Soo/C-1601-2013; Nordlund, Dennis/A-8902-2008; Kim, Philip/N-1886-2013; Heinz, Tony/K-7797-2015; OI Nordlund, Dennis/0000-0001-9524-6908; Heinz, Tony/0000-0003-1365-9464; Gutierrez, Christopher/0000-0002-8307-6419; Hybertsen, Mark S/0000-0003-3596-9754 FU U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences [DE_SC0001085]; Air Force Office of Scientific Research [FA9550-11-1-0010]; DOE [DE-FG02-88ER13937, DE-FG02-07ER15842, DE-AC02-98CH10886]; Office of Naval Research under Graphene Multidisciplinary University Research Initiative; Defense Advanced Research Projects Agency; NSF [CHE-0641523, CHE-07-01483]; New York State Office of Science, Technology and Academic Research; Ministry of Education, Science and Technology [2011-0018395] FX This material is based on work supported as part of the Center for Re-Defining Photovoltaic Efficiency Through Molecule Scale Control, an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences under award no. DE_SC0001085. Support was also provided by the Air Force Office of Scientific Research under grant no. FA9550-11-1-0010 (A.N.P); by the DOE under grants DE-FG02-88ER13937 (G. W. F) and DE-FG02-07ER15842 (T. H.) for research carried out in part at the Center for Functional Nanomaterials, Brookhaven National Laboratory, contract no. DE-AC02-98CH10886 (M. S. H.) and at the National Synchrotron Light Source, contract no. DE-AC02-98CH10886; by the Office of Naval Research under Graphene Multidisciplinary University Research Initiative (A. P. and P. K.); by the Defense Advanced Research Projects Agency Carbon Electronics for RF Applications program (P. K.); by the NSF under grant no. CHE-0641523 (A. P.); by the New York State Office of Science, Technology and Academic Research and by the Priority Research Centers Program (2011-0018395) through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (K. S. K.). Equipment and material support was provided by the NSF under grant CHE-07-01483 (G. W. F.). Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource (SSRL), a Directorate of SLAC National Accelerator Laboratory and an Office of Science User Facility operated for the DOE Office of Science by Stanford University. We thank C. Jaye and D. Fischer for assistance in using National Synchrotron Light Source beamline U7A, H. Ogasawara for assistance at SSRL beamline 13-2, and C. Marianetti and D. Prezzi for useful discussions. The authors declare no competing financial interests. Requests for materials should be addressed to A.N.P. NR 38 TC 397 Z9 400 U1 26 U2 363 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD AUG 19 PY 2011 VL 333 IS 6045 BP 999 EP 1003 DI 10.1126/science.1208759 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 808TD UT WOS:000294000400051 PM 21852495 ER PT J AU Liu, N Lu, N Yao, YX Li, YR Wang, CZ Ho, KM AF Liu, Nuo Lu, Ning Yao, Yong-Xin Li, Yan-Rong Wang, Cai-Zhuang Ho, Kai-Ming TI Strain Effects in Ge/Si and Si/Ge Core/Shell Nanowires SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID SILICON NANOWIRES; HETEROSTRUCTURES; METALS AB Strain-dependent electronic properties of [112] Ge/Si and Si/Ge core/shell nanowires are studied using first-principles calculations within density functional theory. We show that the transition from indirect to quasidirect gap can be obtained by applying compressive strain and the width of the band gap can be tuned by strain. The analysis of the projected density of states indicates that the quasidirect gap is strongly influenced by the atoms in the {111} facets. Several possible applications have been discussed based on their distinguished electronic properties. C1 [Liu, Nuo; Li, Yan-Rong] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China. [Liu, Nuo; Lu, Ning; Yao, Yong-Xin; Wang, Cai-Zhuang; Ho, Kai-Ming] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Liu, Nuo; Lu, Ning; Yao, Yong-Xin; Wang, Cai-Zhuang; Ho, Kai-Ming] Iowa State Univ, Dept Phys, Ames, IA 50011 USA. RP Lu, N (reprint author), Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. EM ninglu@iastate.edu RI lu, ning/H-1993-2011; Yao, Yongxin/B-7320-2008 FU U.S. Department of Energy [DE-AC02-07CH11358]; China Scholarship FX Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. This work was supported by the Director for Energy Research, Office of Basic Energy Sciences including a grant of computer time at national energy research Supercomputing center in Berkeley. Nuo Liu's work at Ames Laboratory was also supported by the China Scholarship. NR 28 TC 14 Z9 15 U1 3 U2 33 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 18 PY 2011 VL 115 IS 32 BP 15739 EP 15742 DI 10.1021/jp110379n PG 4 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 805WC UT WOS:000293758700002 ER PT J AU Albert, VV Ivanov, SA Tretiak, S Kilina, SV AF Albert, Victor V. Ivanov, Sergei A. Tretiak, Sergei Kilina, Svetlana V. TI Electronic Structure of Ligated CdSe Clusters: Dependence on DFT Methodology SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID DENSITY-FUNCTIONAL THEORY; SEMICONDUCTOR QUANTUM DOTS; OPTICAL GAIN; AB-INITIO; PHOTOELECTRON-SPECTROSCOPY; CARRIER MULTIPLICATION; INTRABAND RELAXATION; LIGAND-EXCHANGE; SURFACE LIGANDS; NANOCRYSTALS AB Simulations of ligated semiconductor quantum dots (QDs) and their physical properties, such as morphologies, QD-ligand interactions, electronic structures, and optical transitions, are expected to be very sensitive to computational methodology. We utilize Density Functional Theory (DFT) and systematically study how the choice of density functional, atom-localized basis set, and a solvent affects the physical properties of the Cd33Se33 cluster ligated with a trimethylphosphine oxide ligand. We have found that qualitative performance of all exchange-correlation (XC) functionals is relatively similar in predicting strong QD-ligand binding energy (similar to 1 eV). Additionally, all functionals predict shorter Cd-Se bond lengths on the QD surface than in its core, revealing the nature and degree of QD surface reconstruction. For proper modeling of geometries and QD-ligand interactions, however, augmentation of even a moderately sized basis set with polarization functions (e.g., LANL2DZ* and 6-31G*) is very important. A polar solvent has very significant implications for the ligand binding energy, decreasing it to 0.2-0.5 eV. However, the solvent model has a minor effect on the optoelectronic properties, resulting in persistent blue shifts up to similar to 0.3 eV of the low-energy optical transitions. For obtaining reasonable energy gaps and optical transition energies, hybrid XC functionals augmented by a long-range Hartree-Fock orbital exchange have to be applied. C1 [Kilina, Svetlana V.] N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA. [Albert, Victor V.; Ivanov, Sergei A.; Tretiak, Sergei] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Albert, Victor V.; Ivanov, Sergei A.; Tretiak, Sergei] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Kilina, SV (reprint author), N Dakota State Univ, Dept Chem & Biochem, Fargo, ND 58108 USA. EM svetlana.kilina@ndsu.edu RI Albert, Victor/B-3614-2008; Ivanov, Sergei/B-5505-2011; Tretiak, Sergei/B-5556-2009 OI Albert, Victor/0000-0002-0335-9508; Tretiak, Sergei/0000-0001-5547-3647 FU U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES); ND EPSCoR; NSF [EPS-0814442]; DOE [DE-FG36-08G088160]; Center for Integrated Nanotechnology (CINT); Center for Nonlinear Studies (CNLS) at Los Alamos National Laboratory; U. S. Department of Energy [DE-AC52-06NA25396] FX This work has been supported by the Center for Advanced Solar Photophysics (CASP), an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES). S.K. acknowledges financial support from ND EPSCoR and NSF grant no. EPS-0814442 and DOE start up grant no. DE-FG36-08G088160. S.K. and V.A. thank Ekaterina Badaeva for fruitful discussions. We acknowledge support of Center for Integrated Nanotechnology (CINT) and Center for Nonlinear Studies (CNLS) at Los Alamos National Laboratory. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U. S. Department of Energy under contract DE-AC52-06NA25396. NR 73 TC 47 Z9 47 U1 4 U2 66 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 18 PY 2011 VL 115 IS 32 BP 15793 EP 15800 DI 10.1021/jp202510z PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 805WC UT WOS:000293758700010 ER PT J AU Baker, LR Hervier, A Seo, H Kennedy, G Komvopoulos, K Somorjai, GA AF Baker, L. Robert Hervier, Antoine Seo, Hyungtak Kennedy, Griffin Komvopoulos, Kyriakos Somorjai, Gabor A. TI Highly n-Type Titanium Oxide as an Electronically Active Support for Platinum in the Catalytic Oxidation of Carbon Monoxide SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID HYDROGEN-PEROXIDE; SYNTHESIS GAS; CO OXIDATION; METAL-OXIDES; AU; METHANE; SURFACE; GOLD; O-2; H-2 AB The role of the oxide-metal interface in determining the activity and selectivity of chemical reactions catalyzed by metal particles on an oxide support is an important topic in science and industry. A proposed mechanism for this strong metal-support interaction is electronic activation of surface adsorbates by charge carriers. Motivated by the goal of using electronic activation to drive non thermal chemistry, we investigated the ability of the oxide support to mediate charge transfer. We report an approximately 2-fold increase in the turnover rate of catalytic carbon monoxide oxidation on platinum nanoparticles supported on stoichiometric titanium dioxide (TiO(2)) when the TiO(2) is made highly n-type by fluorine (F) doping. However, for nonstoichiometric titanium oxide (TiO(x < 2)) the effect of F on the turnover rate is negligible. Studies of the titanium oxide electronic structure show that the energy of free electrons in the oxide determines the rate of reaction. These results suggest that highly n-type TiO(2) electronically activates adsorbed oxygen (O) by electron spillover to form an active O(-) intermediate. C1 [Baker, L. Robert; Hervier, Antoine; Seo, Hyungtak; Kennedy, Griffin; Somorjai, Gabor A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Chem Sci Div, Berkeley, CA 94720 USA. [Baker, L. Robert; Hervier, Antoine; Seo, Hyungtak; Kennedy, Griffin; Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Komvopoulos, Kyriakos] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. RP Somorjai, GA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Chem Sci Div, Berkeley, CA 94720 USA. EM somorjai@berkeley.edu FU Helios Solar Energy Research Center; Chemical Sciences Division; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-05CH11231]; UCB-KAUST FX Deposition and processing of titanium oxide films took place in the Marvell Nanolab at the University of California, Berkeley (UCB). X-ray photoelectron spectroscopy and scattering electron microscopy took place in the Molecular Foundry at Lawrence Berkeley National Lab. This work was funded by the Helios Solar Energy Research Center and by the Chemical Sciences Division, which are supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and by the UCB-KAUST Academic Excellence Alliance (AEA) Program. NR 35 TC 19 Z9 19 U1 0 U2 23 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 18 PY 2011 VL 115 IS 32 BP 16006 EP 16011 DI 10.1021/jp203151y PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 805WC UT WOS:000293758700036 ER PT J AU Smith-Moritz, AM Chern, M Lao, J Sze-To, WH Heazlewood, JL Ronald, PC Vega-Sanchez, ME AF Smith-Moritz, Andreia M. Chern, Mawsheng Lao, Jeemeng Sze-To, Wing Hoi Heazlewood, Joshua L. Ronald, Pamela C. Vega-Sanchez, Miguel E. TI Combining multivariate analysis and monosaccharide composition modeling to identify plant cell wall variations by Fourier Transform Near Infrared spectroscopy SO PLANT METHODS LA English DT Article DE near infrared spectroscopy; cell wall; hemicellulose; multivariate analysis; mutant screen; pls modeling ID FT-IR; GLUCURONOXYLAN BIOSYNTHESIS; CHEMICAL-COMPOSITION; ARABIDOPSIS; MUTANTS; CELLULOSE; IDENTIFICATION; SPECTRA; WOOD; MICROSPECTROSCOPY AB We outline a high throughput procedure that improves outlier detection in cell wall screens using FT-NIR spectroscopy of plant leaves. The improvement relies on generating a calibration set from a subset of a mutant population by taking advantage of the Mahalanobis distance outlier scheme to construct a monosaccharide range predictive model using PLS regression. This model was then used to identify specific monosaccharide outliers from the mutant population. C1 [Smith-Moritz, Andreia M.; Chern, Mawsheng; Lao, Jeemeng; Sze-To, Wing Hoi; Heazlewood, Joshua L.; Ronald, Pamela C.; Vega-Sanchez, Miguel E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Joint BioEnergy Inst, Berkeley, CA 94720 USA. [Smith-Moritz, Andreia M.; Heazlewood, Joshua L.; Ronald, Pamela C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Chern, Mawsheng; Lao, Jeemeng; Sze-To, Wing Hoi; Ronald, Pamela C.; Vega-Sanchez, Miguel E.] Univ Calif Davis, Dept Plant Pathol, Davis, CA 95616 USA. RP Vega-Sanchez, ME (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Joint BioEnergy Inst, 1 Cyclotron Rd MS 978-4101, Berkeley, CA 94720 USA. EM mevega-sanchez@lbl.gov RI Heazlewood, Joshua/A-2554-2008; Vega-Sanchez, Miguel/K-3072-2012 OI Heazlewood, Joshua/0000-0002-2080-3826; Vega-Sanchez, Miguel/0000-0003-0128-2743 FU Office of Science, Office of Biological and Environmental Research, of the U.S. Department of Energy [DE-AC02-05CH11231] FX We wish to thank Gabriela Diaz and Nathan Kane for assistance with sample analysis and preparation for FT-NIR. We thank the Sundaresan laboratory (UC Davis) for providing a transposon insertion line in the rice CesA7 gene (also known as a brittle culm mutant) and Henrik V. Scheller (LBNL/UC Berkeley) for providing Arabidopsis cell wall mutants and critical examination of the manuscript. This work conducted by the Joint BioEnergy Institute was supported by the Office of Science, Office of Biological and Environmental Research, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 46 TC 11 Z9 11 U1 2 U2 32 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1746-4811 J9 PLANT METHODS JI Plant Methods PD AUG 18 PY 2011 VL 7 AR 26 DI 10.1186/1746-4811-7-26 PG 13 WC Biochemical Research Methods; Plant Sciences SC Biochemistry & Molecular Biology; Plant Sciences GA 816MT UT WOS:000294606200001 PM 21851585 ER PT J AU Kauffman, DR Ohodnicki, PR Kail, BW Matranga, C AF Kauffman, Douglas R. Ohodnicki, Paul R. Kail, Brian W. Matranga, Christopher TI Selective Electrocatalytic Activity of Ligand Stabilized Copper Oxide Nanoparticles SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID ELECTROCHEMICAL REDUCTION; METHANOL OXIDATION; METAL NANOCRYSTALS; CATALYTIC-ACTIVITY; ALKALINE-SOLUTION; CU ELECTRODE; CO2; CARBON; PLATINUM; MEDIA AB Ligand stabilization can influence the surface chemistry of Cu oxide nanoparticles (NPs) and provide unique product distributions for electrocatalytic methanol (MeOH) oxidation and CO2 reduction reactions. Oleic acid (OA) stabilized Cu2O and CuO NPs promote the MeOH oxidation reaction with 88% and 99.97% selective HCOH formation, respectively. Alternatively, CO2 is the only reaction product detected for bulk Cu oxides and Cu oxide NPs with no ligands or weakly interacting ligands. We also demonstrate that OA stabilized Cu oxide NPs can reduce CO2 into CO with a similar to 1.7-fold increase in CO/H-2 production ratios compared to bulk Cu oxides. The OA stabilized Cu oxide NPs also show 7.6 and 9.1-fold increases in CO/H-2 production ratios compared to weakly stabilized and nonstabilized Cu oxide NPs, respectively. Our data illustrates that the presence and type of surface ligand can substantially influence the catalytic product selectivity of Cu oxide NPs. C1 [Kauffman, Douglas R.; Ohodnicki, Paul R.; Kail, Brian W.; Matranga, Christopher] US DOE, NETL, Pittsburgh, PA 15236 USA. [Kail, Brian W.] URS, Pittsburgh, PA 15219 USA. RP Kauffman, DR (reprint author), US DOE, NETL, 626 Cochrans Mill Rd, Pittsburgh, PA 15236 USA. EM Douglas.Kauffman@UC.NETL.DOE.GOV RI Matranga, Christopher/E-4741-2015; OI Matranga, Christopher/0000-0001-7082-5938; Kauffman, Douglas/0000-0002-7855-3428 FU National Research Council; NETL [DE-FE0004000] FX D.R.K acknowledges a National Research Council associateship, and the authors thank Dr. J. Baltrus (NETL) for access to and technical assistance with XPS instrumentation. This technical effort was performed in support of the NETL's ongoing research in CO2 utilization under RES Contract DE-FE0004000. Reference in this work to any specific commercial product is to facilitate understanding and does not necessarily imply endorsement by the United States Department of Energy. NR 42 TC 17 Z9 17 U1 7 U2 62 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD AUG 18 PY 2011 VL 2 IS 16 BP 2038 EP 2043 DI 10.1021/jz200850y PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 809SL UT WOS:000294076900013 ER PT J AU Asmal, M Hellmann, I Liu, WM Keele, BF Perelson, AS Bhattacharya, T Gnanakaran, S Daniels, M Haynes, BF Korber, BT Hahn, BH Shaw, GM Letvin, NL AF Asmal, Mohammed Hellmann, Ina Liu, Weimin Keele, Brandon F. Perelson, Alan S. Bhattacharya, Tanmoy Gnanakaran, S. Daniels, Marcus Haynes, Barton F. Korber, Bette T. Hahn, Beatrice H. Shaw, George M. Letvin, Norman L. TI A Signature in HIV-1 Envelope Leader Peptide Associated with Transition from Acute to Chronic Infection Impacts Envelope Processing and Infectivity SO PLOS ONE LA English DT Article ID IMMUNODEFICIENCY-VIRUS TYPE-1; DYNAMICS IN-VIVO; QUALITY-CONTROL; SELECTIVE TRANSMISSION; ENDOPLASMIC-RETICULUM; GLYCOPROTEIN; SEQUENCE; PROTEIN; GP120; POPULATION AB Mucosal transmission of the human immunodeficiency virus (HIV) results in a bottleneck in viral genetic diversity. Gnanakaran and colleagues used a computational strategy to identify signature amino acids at particular positions in Envelope that were associated either with transmitted sequences sampled very early in infection, or sequences sampled during chronic infection. Among the strongest signatures observed was an enrichment for the stable presence of histidine at position 12 at transmission and in early infection, and a recurrent loss of histidine at position 12 in chronic infection. This amino acid lies within the leader peptide of Envelope, a region of the protein that has been shown to influence envelope glycoprotein expression and virion infectivity. We show a strong association between a positively charged amino acid like histidine at position 12 in transmitted/founder viruses with more efficient trafficking of the nascent envelope polypeptide to the endoplasmic reticulum and higher steady-state glycoprotein expression compared to viruses that have a non-basic position 12 residue, a substitution that was enriched among viruses sampled from chronically infected individuals. When expressed in the context of other viral proteins, transmitted envelopes with a basic amino acid position 12 were incorporated at higher density into the virus and exhibited higher infectious titers than did non-signature envelopes. These results support the potential utility of using a computational approach to examine large viral sequence data sets for functional signatures and indicate the importance of Envelope expression levels for efficient HIV transmission. C1 [Asmal, Mohammed; Hellmann, Ina; Letvin, Norman L.] Harvard Univ, Beth Israel Deaconess Med Ctr, Div Viral Pathogenesis, Sch Med, Boston, MA 02215 USA. [Liu, Weimin; Keele, Brandon F.; Hahn, Beatrice H.; Shaw, George M.] Univ Alabama, Dept Med, Birmingham, AL 35294 USA. [Perelson, Alan S.; Bhattacharya, Tanmoy; Gnanakaran, S.; Daniels, Marcus; Korber, Bette T.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. [Bhattacharya, Tanmoy; Korber, Bette T.] Santa Fe Inst, Santa Fe, NM 87501 USA. [Haynes, Barton F.] Duke Univ, Med Ctr, Duke Human Vaccine Inst, Durham, NC USA. RP Asmal, M (reprint author), Harvard Univ, Beth Israel Deaconess Med Ctr, Div Viral Pathogenesis, Sch Med, Boston, MA 02215 USA. EM masmal@bidmc.harvard.edu RI Bhattacharya, Tanmoy/J-8956-2013; OI Bhattacharya, Tanmoy/0000-0002-1060-652X; Gnanakaran, S/0000-0002-9368-3044; Korber, Bette/0000-0002-2026-5757 FU NIH [AI28433-19, RR06555-18, AI-067854]; Center for HIV/AIDS Vaccine Immunology FX This research was supported by grants from the NIH AI28433-19, RR06555-18 and AI-067854, and the Center for HIV/AIDS Vaccine Immunology. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 49 TC 21 Z9 21 U1 1 U2 9 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 18 PY 2011 VL 6 IS 8 AR e23673 DI 10.1371/journal.pone.0023673 PG 12 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 810LN UT WOS:000294126900033 PM 21876761 ER PT J AU Chapman, JA Ho, I Sunkara, S Luo, SJ Schroth, GP Rokhsar, DS AF Chapman, Jarrod A. Ho, Isaac Sunkara, Sirisha Luo, Shujun Schroth, Gary P. Rokhsar, Daniel S. TI Meraculous: De Novo Genome Assembly with Short Paired-End Reads SO PLOS ONE LA English DT Article ID SEQUENCE; CHALLENGES; ALIGNMENT; ALLPATHS; MILLIONS; VELVET AB We describe a new algorithm, meraculous, for whole genome assembly of deep paired-end short reads, and apply it to the assembly of a dataset of paired 75-bp Illumina reads derived from the 15.4 megabase genome of the haploid yeast Pichia stipitis. More than 95% of the genome is recovered, with no errors; half the assembled sequence is in contigs longer than 101 kilobases and in scaffolds longer than 269 kilobases. Incorporating fosmid ends recovers entire chromosomes. Meraculous relies on an efficient and conservative traversal of the subgraph of the k-mer (deBruijn) graph of oligonucleotides with unique high quality extensions in the dataset, avoiding an explicit error correction step as used in other short-read assemblers. A novel memory-efficient hashing scheme is introduced. The resulting contigs are ordered and oriented using paired reads separated by similar to 280 bp or similar to 3.2 kbp, and many gaps between contigs can be closed using paired-end placements. Practical issues with the dataset are described, and prospects for assembling larger genomes are discussed. C1 [Chapman, Jarrod A.; Ho, Isaac; Sunkara, Sirisha; Rokhsar, Daniel S.] US DOE, Joint Genome Inst, Walnut Creek, CA USA. [Luo, Shujun] Illumina Inc, Hayward, CA USA. [Schroth, Gary P.; Rokhsar, Daniel S.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. RP Chapman, JA (reprint author), US DOE, Joint Genome Inst, Walnut Creek, CA USA. EM jchapman@lbl.gov FU U.S. Department of Energy's Office of Science; University of California, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Center for Integrative Genomics at UC Berkeley; Gordon and Betty Moore Foundation FX This work was performed under the auspices of the U.S. Department of Energy's Office of Science, Biological and Environmental Research Program, and by the University of California, Lawrence Berkeley National Laboratory under contract No. DE-AC02-05CH11231, and at the Center for Integrative Genomics at UC Berkeley supported by a grant from the Gordon and Betty Moore Foundation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Authors G. P. S. and S. L. are employees of Illumina and are also shareholders in the company. Illumina Inc. funded data collection and their contributions to this manuscript. NR 38 TC 27 Z9 27 U1 4 U2 11 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 18 PY 2011 VL 6 IS 8 AR e23501 DI 10.1371/journal.pone.0023501 PG 13 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 810LN UT WOS:000294126900026 PM 21876754 ER PT J AU Ogden, MD Orme, CJ Stewart, FF AF Ogden, Mark D. Orme, Christopher J. Stewart, Frederick F. TI Effects of alkyl substitution on the physical properties and gas transport behavior in selected poly(R-phenoxyphosphazenes) SO POLYMER LA English DT Article DE Polyphosphazene; Membranes; Gas separations ID POLYPHOSPHAZENE MEMBRANES; PHOSPHONITRILIC COMPOUNDS; PERMEABILITY; POLY; SELECTIVITY; PERMEATION; DIFFUSION; POLYMERS AB A systematic preparation of alkyl substituted phenoxyphosphazene polymers was performed and their gas transport properties determined. In this study, phosphazenes substituted with 4-methylphenol, 4-ethylphenol, and 4-isopropylphenol are reported. An additional polymer substituted with 4-tertbutylphenoxy-1-ethanol also was synthesized in this work. Data derived for these materials, including chemical, thermal and gas transport characterization, were compared to previous reports discussing poly [bis-phenoxyphosphazene] and its analog with tert-butyl substitution: poly[bis-(4-tert-butylphenoxy) phosphazene]. The tert-butyl moiety influences orderly chain packing, presumably through steric hindrance that can influence aromatic pi-stacking. For the new poly[(alkylphenoxy)phosphazenes], semicrystallinity is maintained and the added steric bulk serves to decrease the polymer glass transition temperature (Tg) and increase both permeability and selectivity for the gas pairs: O(2)/N(2) and CO(2)/CH(4). Removal of the tert-butyl moiety from the immediate vicinity of the backbone through a flexible spacer serves to depress the Tg as compared to poly[bis-(4-tert-butylphenoxy)phosphazene], but provides no performance enhancement for gas transport. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Ogden, Mark D.; Orme, Christopher J.; Stewart, Frederick F.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Stewart, FF (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA. EM Frederick.Stewart@INL.gov FU Battelle Energy Alliance, LLC [DE-AC07-05ID14517]; U.S. Department of Energy FX This manuscript has been authored by Battelle Energy Alliance, LLC under Contract No. DE-AC07-05ID14517 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 28 TC 3 Z9 3 U1 2 U2 17 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0032-3861 J9 POLYMER JI Polymer PD AUG 18 PY 2011 VL 52 IS 18 BP 3879 EP 3886 DI 10.1016/j.polymer.2011.07.010 PG 8 WC Polymer Science SC Polymer Science GA 812TQ UT WOS:000294316200001 ER PT J AU Errandonea, D Gracia, L Beltran, A Vegas, A Meng, Y AF Errandonea, D. Gracia, L. Beltran, A. Vegas, A. Meng, Y. TI Pressure-induced phase transitions in AgClO4 SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE PHASE; X-RAY-DIFFRACTION; CRYSTAL-STRUCTURES; BARITE; PERCHLORATE; ANGLESITE; DENSITY; CATIONS; ALLOYS AB AgClO4 has been studied under compression by x-ray diffraction and density functional theory calculations. Experimental evidence of a structural phase transition from the tetragonal structure of AgClO4 to an orthorhombic barite-type structure has been found at 5.1 GPa. The transition is supported by total-energy calculations. In addition, a second transition to a monoclinic structure is theoretically proposed to take place beyond 17 GPa. The equation of state of the different phases is reported as well as the calculated Raman-active phonons and their pressure evolution. Finally, we provide a description of all the structures of AgClO4 and discuss their relationships. The structures are also compared with those of AgCl in order to explain the structural sequence determined for AgClO4. C1 [Errandonea, D.] Univ Valencia, Dept Fis Aplicada ICMUV, MALTA Consolider Team, E-46100 Burjassot, Valencia, Spain. [Gracia, L.; Beltran, A.] Univ Jaume 1, Dept Quim Fis & Analit, MALTA Consolider Team, Castellon de La Plana 12080, Spain. [Vegas, A.] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain. [Meng, Y.] Argonne Natl Lab, HPCAT, Carnegie Inst Washington, Adv Photon Source, Argonne, IL 60439 USA. RP Errandonea, D (reprint author), Univ Valencia, Dept Fis Aplicada ICMUV, MALTA Consolider Team, Edificio Invest,C Dr Moliner 50, E-46100 Burjassot, Valencia, Spain. RI Gracia, Lourdes/A-7978-2013; Beltran, Armando/H-1979-2015; Errandonea, Daniel/J-7695-2016 OI Gracia, Lourdes/0000-0001-9684-2568; Beltran, Armando/0000-0001-9665-5527; Errandonea, Daniel/0000-0003-0189-4221 FU Spanish MICINN [MAT2010-21270-C04-01, CSD2007-00045]; DOENNSA; DOE-BES [DE-AC02-06CH11357]; NSF FX We acknowledge the financial support of the Spanish MICINN under Grant Nos. MAT2010-21270-C04-01 and CSD2007-00045. X-ray diffraction experiments were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT is supported by CIW, CDAC, UNLV, and LLNL through funding from DOENNSA, DOE-BES, and NSF. A.P.S. was supported by DOE-BES under Grant No. DE-AC02-06CH11357. NR 52 TC 14 Z9 14 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 6 AR 064103 DI 10.1103/PhysRevB.84.064103 PG 11 WC Physics, Condensed Matter SC Physics GA 809BU UT WOS:000294026500004 ER PT J AU Hakimi, AMHR Blamire, MG Heald, SM Alshammari, MS Alqahtani, MS Score, DS Blythe, HJ Fox, AM Gehring, GA AF Hakimi, A. M. H. R. Blamire, M. G. Heald, S. M. Alshammari, Marzook S. Alqahtani, M. S. Score, D. S. Blythe, H. J. Fox, A. M. Gehring, G. A. TI Donor-band ferromagnetism in cobalt-doped indium oxide SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC SEMICONDUCTORS; SPECTROSCOPY AB Ferromagnetic cobalt-doped indium oxide, (In(1-x)Co(x))(2)O(3), thin films with x between 1.6% and 8.1% have been studied by x-ray, magnetic, and optical methods. Evidence gathered from x-ray diffraction and x-ray absorption fine-structure studies suggest that the Co atoms are substitutional within the In(2)O(3) matrix. The magnetization of the films were found to consist of two components: a paramagnetic term that agrees with what is expected for paramagnetic cobalt ions and a temperature-dependent ferromagnetic hysteresis loop. The ferromagnetic component was too large to have been generated by the free carriers, implying that it originates from electrons bound in defect states associated with oxygen vacancies. This is confirmed by optical absorption and magneto-optical studies because the magnetic circular dichroism scales with concentration of cobalt and temperature in the same way as the measured magnetization. C1 [Hakimi, A. M. H. R.; Blamire, M. G.] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England. [Heald, S. M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Alshammari, Marzook S.; Alqahtani, M. S.; Score, D. S.; Blythe, H. J.; Fox, A. M.; Gehring, G. A.] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England. RP Hakimi, AMHR (reprint author), Univ Cambridge, Dept Mat Sci & Met, Pembroke St, Cambridge CB2 3QZ, England. EM alimohakimi@googlemail.com; g.gehring@sheffield.ac.uk RI Fox, Mark/F-1096-2010 OI Fox, Mark/0000-0002-9025-2441 FU U.K. Engineering and Physical Sciences Research Council; KACST (Saudi Arabia); U.S. Department of Energy-Basic Energy Sciences; NSERC; University of Washington; Simon Fraser University; Advanced Photon Source; U.S. DOE [DEAC02-06CH1135] FX This research was funded by the U.K. Engineering and Physical Sciences Research Council and KACST (Saudi Arabia). PNC/XSD facilities at the Advanced Photon Source, and research at these facilities, are supported by the U.S. Department of Energy-Basic Energy Sciences, a Major Resources Support grant from NSERC, the University of Washington, Simon Fraser University, and the Advanced Photon Source. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DEAC02-06CH1135. M.S.A. thanks King Saud University, Saudi Arabia, for their kind support. NR 29 TC 28 Z9 29 U1 4 U2 25 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 8 AR 085201 DI 10.1103/PhysRevB.84.085201 PG 8 WC Physics, Condensed Matter SC Physics GA 809BY UT WOS:000294026900003 ER PT J AU Queyreau, S Marian, J Gilbert, MR Wirth, BD AF Queyreau, S. Marian, J. Gilbert, M. R. Wirth, B. D. TI Edge dislocation mobilities in bcc Fe obtained by molecular dynamics SO PHYSICAL REVIEW B LA English DT Article ID SCREW DISLOCATIONS; CORE STRUCTURES; PLASTIC-FLOW; ALPHA-IRON; 112 PLANES; SIMULATIONS; CRYSTALS; GLIDE; STRESSES; METALS AB In the traditional picture of plasticity in bcc metals, edge dislocations have been assumed to play a minor role due to their high mobility with respect to screw dislocations, which then control plastic flow. 1/2 < 111 >{110} edge dislocations indeed fit this description, as it has been shown by way of numerous atomistic simulations. However, 1/2 < 111 >{112} edge dislocations have been comparatively much less studied. The recent discovery of a possible regime where they move slowly via thermally activated kink-pair nucleation may have implications in the plastic behavior of bcc materials. Because dislocation mobilities are very difficult to measure experimentally, in this paper, we provide comprehensive mobility laws for both types of edge dislocations as a function of temperature and stress using molecular dynamics simulations. Our results confirm the existence of clearly delimited thermally activated and phonon drag dynamic regimes for 1/2 < 111 >{112} edge dislocations and of a single viscous drag regime for their 1/2 < 111 >{110} counterparts. We also provide an analysis to relate the difference in mobility to the dislocation core properties. Our fitted mobility laws may be used in dislocation dynamics simulations of plastic flow involving millions of segments. C1 [Queyreau, S.; Marian, J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Gilbert, M. R.] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Wirth, B. D.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA. [Wirth, B. D.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. RP Queyreau, S (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. EM queyreau1@llnl.gov RI Wirth, Brian/O-4878-2015; Gilbert, Mark/J-7494-2016; OI Wirth, Brian/0000-0002-0395-0285; Gilbert, Mark/0000-0003-2556-9722; Gilbert, Mark/0000-0001-8935-1744 FU U S Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Laboratory Directed Research and Development Program [09-SI-003]; RCUK [EP/I501045]; European Communities FX This work was performed under the auspices of the U S Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. We specifically acknowledge support from the Laboratory Directed Research and Development Program under Project No. 09-SI-003. This work was partly funded by the RCUK Energy Programme under Grant No. EP/I501045 and the European Communities under the contract of Association between EURATOM and CCFE. NR 41 TC 33 Z9 33 U1 1 U2 34 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 6 AR 064106 DI 10.1103/PhysRevB.84.064106 PG 7 WC Physics, Condensed Matter SC Physics GA 809BU UT WOS:000294026500007 ER PT J AU Sciambi, A Pelliccione, M Lilly, MP Bank, SR Gossard, AC Pfeiffer, LN West, KW Goldhaber-Gordon, D AF Sciambi, A. Pelliccione, M. Lilly, M. P. Bank, S. R. Gossard, A. C. Pfeiffer, L. N. West, K. W. Goldhaber-Gordon, D. TI Vertical field-effect transistor based on wave-function extension SO PHYSICAL REVIEW B LA English DT Article ID 2-DIMENSIONAL ELECTRON-SYSTEMS; GRAPHENE; HETEROSTRUCTURES AB We demonstrate a mechanism for a dual layer, vertical field-effect transistor, in which nearly depleting one layer will extend its wave function to overlap the other layer and increase tunnel current. We characterize this effect in a specially designed GaAs/AlGaAs device, observing a tunnel current increase of two orders of magnitude at cryogenic temperatures, and we suggest extrapolations of the design to other material systems such as graphene. C1 [Sciambi, A.; Pelliccione, M.; Goldhaber-Gordon, D.] SLAC Natl Accelerator Lab, SIMES, Menlo Pk, CA 94025 USA. [Sciambi, A.; Pelliccione, M.] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA. [Lilly, M. P.] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA. [Bank, S. R.; Gossard, A. C.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. [Bank, S. R.] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78758 USA. [Pfeiffer, L. N.; West, K. W.] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA. [Goldhaber-Gordon, D.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. RP Goldhaber-Gordon, D (reprint author), SLAC Natl Accelerator Lab, SIMES, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. EM goldhaber-gordon@stanford.edu FU DOE-BES; DMSE at SLAC [DE-AC02-76SF00515]; NSF NSEC [0425897]; Gordon and Betty Moore Foundation; National Science Foundation; NSF; Hertz Foundation; Stanford; David and Lucile Packard Foundation FX We thank C. X. Liu for theoretical discussions. This work is supported by DOE-BES, DMS&E at SLAC (DE-AC02-76SF00515), with the original concept developed under the Center for Probing the Nanoscale (NSF NSEC Grant No. 0425897) and a Mel Schwartz Fellowship from the Stanford Physics Department. This work was performed, in part, at the Center for Integrated Nanotechnologies, a DOE-BES user facility at Sandia National Labs (DE-AC04-94AL85000). The work at Princeton was partially funded by the Gordon and Betty Moore Foundation as well as the National Science Foundation MRSEC Program through the Princeton Center for Complex Materials (DMR-0819860). A.S. acknowledges support from NSF, and M.P. from the Hertz Foundation, NSF, and Stanford. D.G.-G. recognizes support from the David and Lucile Packard Foundation. NR 27 TC 15 Z9 15 U1 4 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 8 AR 085301 DI 10.1103/PhysRevB.84.085301 PG 5 WC Physics, Condensed Matter SC Physics GA 809BY UT WOS:000294026900004 ER PT J AU Suzuki, Y Fanelli, VR Betts, JB Freibert, FJ Mielke, CH Mitchell, JN Ramos, M Saleh, TA Migliori, A AF Suzuki, Yoko Fanelli, V. R. Betts, J. B. Freibert, F. J. Mielke, C. H. Mitchell, J. N. Ramos, M. Saleh, T. A. Migliori, A. TI Temperature dependence of elastic moduli of polycrystalline beta plutonium SO PHYSICAL REVIEW B LA English DT Article ID PU-GA ALLOYS; DELTA-PLUTONIUM; PHASE-TRANSFORMATIONS; ANOMALOUS PROPERTIES; INTERNAL-FRICTION; THERMAL EXPANSION; CRYSTAL STRUCTURE; ACTINIDE METALS; ALPHA PLUTONIUM; CONSTANTS AB The elastic moduli of pure polycrystalline beta plutonium were measured over its full range of existence (417-491 K) using resonant ultrasound spectroscopy. The Debye temperature (138 K), Poisson's ratio (0.28), Gruneisen parameter (2.3), and the zero-temperature atomic volume (21.2 angstrom(3)) were computed from the measurements. Both bulk and shear moduli decrease smoothly on warming with expected discontinuities at the phase boundaries. The shear modulus is surprisingly nearly the same for beta and gamma Pu. The temperature dependence of bulk moduli for beta Pu is, like gamma Pu, unusually small. Poisson's ratio shows very strong differences among alpha, beta, and gamma Pu indicating they are entirely different metals. The zero-temperature elastic moduli were computed for the three phases as well as for gallium-stabilized delta Pu (also measured by us) and compared to calculations. C1 [Suzuki, Yoko] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Nucl Mat Sci Grp, Los Alamos, NM 87545 USA. RP Suzuki, Y (reprint author), Los Alamos Natl Lab, Natl High Magnet Field Lab, POB 1663, Los Alamos, NM 87545 USA. EM yoko@lanl.gov RI Mitchell, Jeremy/E-2875-2010; Fanelli, Victor/A-4375-2015; OI Mitchell, Jeremy/0000-0001-7109-3505; Freibert, Franz/0000-0003-4434-3446; Saleh, Tarik/0000-0003-2108-4293 FU U.S. Department of Energy at Los Alamos National Laboratory in the National High Magnetic Field Laboratory; U.S. National Nuclear Security Administration [20070013DR]; National Science Foundation [DMR-0654118]; State of Florida FX We would like to thank Hassel Ledbetter, Angus Lawson, and Per Soderlind for useful discussions. This work was performed under the auspices of the U.S. Department of Energy at Los Alamos National Laboratory in the National High Magnetic Field Laboratory and was supported by the U.S. National Nuclear Security Administration under Grant No. 20070013DR, the National Science Foundation under Grant No. DMR-0654118, and the State of Florida. NR 106 TC 9 Z9 9 U1 2 U2 31 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 6 AR 064105 DI 10.1103/PhysRevB.84.064105 PG 11 WC Physics, Condensed Matter SC Physics GA 809BU UT WOS:000294026500006 ER PT J AU Velizhanin, KA Efimov, A AF Velizhanin, Kirill A. Efimov, Anatoly TI Probing plasmons in graphene by resonance energy transfer SO PHYSICAL REVIEW B LA English DT Article ID DIELECTRIC FUNCTION; NANOCRYSTALS; GRAPHITE AB We theoretically propose an experimental method to probe electronic excitations in graphene-a monoatomic layer of carbon-by monitoring the fluorescence quenching of a semiconductor quantum dot (or a dye molecule) due to the resonance energy transfer to the graphene sheet. We show how the dispersion relation of plasmons in graphene can be accurately extracted by varying the back-gate voltage and the distance between the quantum dot and graphene. C1 [Velizhanin, Kirill A.] Los Alamos Natl Lab, Ctr Nonlinear Studies CNLS T4, Div Theoret, Los Alamos, NM 87545 USA. [Efimov, Anatoly] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Velizhanin, KA (reprint author), Los Alamos Natl Lab, Ctr Nonlinear Studies CNLS T4, Div Theoret, POB 1663, Los Alamos, NM 87545 USA. EM kirill@lanl.gov RI Velizhanin, Kirill/C-4835-2008; OI Efimov, Anatoly/0000-0002-5559-4147 FU Center for Nonlinear Studies (CNLS), LANL FX This work was performed, in part, at the Center for Integrated Nanotechnologies, a US Department of Energy, Office of Basic Energy Sciences user facility. K. A. V. acknowledges support by the Center for Nonlinear Studies (CNLS), LANL. NR 39 TC 33 Z9 33 U1 1 U2 18 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 8 AR 085401 DI 10.1103/PhysRevB.84.085401 PG 7 WC Physics, Condensed Matter SC Physics GA 809BY UT WOS:000294026900005 ER PT J AU Wei, FY Lv, B Xue, YY Chu, CW AF Wei, F. Y. Lv, B. Xue, Y. Y. Chu, C. W. TI Two-gap features in the specific heat of (M,K)Fe2As2 (M = Ba, Sr) SO PHYSICAL REVIEW B LA English DT Article ID BA0.6K0.4FE2AS2; SPECTROSCOPY; GAPS AB The specific heat coefficient C-p/T was investigated for the optimally doped Ba0.6K0.4Fe2As2 and Sr0.55K0.45Fe2As2. Previously, both the single- and the two-gap pairing have been suggested for Ba0.6K0.4Fe2As2 single crystals. Our analysis reveals that the controversy is mainly caused by the differences in the adopted phonon background. This is especially true in the (Ba,K)Fe2As2 system, in which the phonon contribution below 20 K significantly deviates from the simplified Debye model and, in addition, strongly depends on the doping. The different pairing features reported previously can be reproduced from the same Cp/T data set if the respective phonon baselines are adopted. The soft-phonon shifts, therefore, were examined on the (Ba,K)Fe2As2 and (Sr,K)Fe2As2 systems, as well as the (Ba0.6K0.4)(Fe,Co)(2)As-2 system. The data show that although the K-Ba replacement may change the low-temperature slope beta = d(C-p/T)/d(T-2) by 50%, the effects of both K-Sr and Co-Fe replacements are much weaker. The carrier part, C-e/T, is consequently extracted for both Sr0.55K0.45Fe2As2 and Ba0.6K0.4Fe2As2. The two-gap features appear in both cases, but the coupling strength is much stronger for the Ba-based superconductors. C1 [Wei, F. Y.; Lv, B.; Xue, Y. Y.; Chu, C. W.] Univ Houston, Dept Phys, Houston, TX 77204 USA. [Wei, F. Y.; Lv, B.; Xue, Y. Y.; Chu, C. W.] Univ Houston, TCSUH, Houston, TX 77204 USA. [Chu, C. W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Wei, FY (reprint author), Univ Houston, Dept Phys, Houston, TX 77204 USA. EM cwchu@uh.edu FU AFOSR [FA9550-09-1-0656]; Department of Energy through ORNL [4000086706]; Rice University [R15901]; T. L. L. Temple Foundation; State of Texas through the Texas Center for Superconductivity at the University of Houston; State of Texas through the Texas Center for Superconductivity at Lawrence Berkeley National Laboratory FX We thank J. Shulman for helpful discussions. The work in Houston is supported in part by AFOSR Contract No. FA9550-09-1-0656, Department of Energy Subcontract No. 4000086706 through ORNL, and AFRL Subcontract No. R15901 (CONTACT) through Rice University, the T. L. L. Temple Foundation and the State of Texas through the Texas Center for Superconductivity at the University of Houston and at Lawrence Berkeley National Laboratory by the Director, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, Department of Energy. NR 17 TC 4 Z9 4 U1 1 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 18 PY 2011 VL 84 IS 6 AR 064508 DI 10.1103/PhysRevB.84.064508 PG 8 WC Physics, Condensed Matter SC Physics GA 809BU UT WOS:000294026500017 ER PT J AU Pastore, S Girlanda, L Schiavilla, R Viviani, M AF Pastore, S. Girlanda, L. Schiavilla, R. Viviani, M. TI Two-nucleon electromagnetic charge operator in chiral effective field theory(chi EFT) up to one loop SO PHYSICAL REVIEW C LA English DT Article ID ELECTRON-DEUTERON SCATTERING; RELATIVISTIC CORRECTIONS; FORM-FACTORS; NUCLEI; ORDER; RETARDATION; CURRENTS; FORCES AB The electromagnetic charge operator in a two-nucleon system is derived in chiral effective field theory (chi EFT) up to order e Q [or next-to-next-to-next-to-next-to-leading order (N4LO)], where Q denotes the low-momentum scale and e is the electric charge. The specific form of the N3LO and N4LO corrections from, respectively, one-pion-exchange and two-pion-exchange depends on the off-the-energy-shell prescriptions adopted for the nonstatic terms in the corresponding potentials. We show that different prescriptions lead to unitarily equivalent potentials and accompanying charge operators. Thus, provided a consistent set is adopted, predictions for physical observables will remain unaffected by the nonuniqueness associated with these off-the-energy-shell effects. C1 [Pastore, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Girlanda, L.] Univ Salento, Dept Phys, I-73100 Lecce, Italy. [Girlanda, L.] INFN Sez Lecce, I-73100 Lecce, Italy. [Schiavilla, R.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. [Schiavilla, R.] Jefferson Lab, Newport News, VA 23606 USA. [Viviani, M.] INFN Sez Pisa, I-56127 Pisa, Italy. RP Pastore, S (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. FU US Department of Energy, Office of Nuclear Physics [DE-AC05-06OR23177, DE-AC02-06CH11357] FX We would like to thank D. R. Phillips for correspondence in reference to his derivation of the OPE charge operator in Eq. (41). An interesting conversation with E. Epelbaum, S. Kolling, and H. Krebs is also acknowledged by one of the authors (R.S.). R.S. thanks the Physics Department of the University of Pisa, the INFN Pisa branch, and especially the Pisa group for the support and warm hospitality extended to him on several occasions. The work of R.S. and S.P. is supported by the US Department of Energy, Office of Nuclear Physics, under Contracts No. DE-AC05-06OR23177 and No. DE-AC02-06CH11357, respectively. NR 26 TC 27 Z9 27 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD AUG 18 PY 2011 VL 84 IS 2 AR 024001 DI 10.1103/PhysRevC.84.024001 PG 15 WC Physics, Nuclear SC Physics GA 809CA UT WOS:000294027100001 ER PT J AU Kharzeev, DE Yee, HU Zahed, I AF Kharzeev, Dmitri E. Yee, Ho-Ung Zahed, Ismail TI Anomaly-induced quadrupole moment of the neutron in magnetic field SO PHYSICAL REVIEW D LA English DT Article ID COMPTON-SCATTERING; NUCLEON; POLARIZABILITY AB Neutrons cannot possess a quadrupole moment in the vacuum. Nevertheless, we show that, in the presence of an external magnetic field, the neutrons acquire a new type of quadrupole moment Q(ij) = chi sigma(i)B(j) involving the components of spin and magnetic field. This "chiral magnetic" quadrupole moment arises from the interplay of the chiral anomaly and the magnetic field; we estimate its value for the neutron in the static limit and find chi similar or equal to 1.35 X 10(-2) fm(4). The detection of the quadrupole moment of the neutron would provide a novel test of the role of the chiral anomaly in low-energy QCD and can be possible in the presence of both magnetic and inhomogeneous electric fields. The quadrupole moment of the neutron may affect, e.g., the properties of neutron stars and magnetars. C1 [Kharzeev, Dmitri E.; Yee, Ho-Ung; Zahed, Ismail] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kharzeev, Dmitri E.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Kharzeev, DE (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. FU U.S. Department of Energy [DE-FG-88ER40388, DE-AC02-98CH10886, DE-FG-88ER41723] FX We thank Martin Savage and Brian Tiburzi for bringing our attention to spin polarizabilities in Compton scattering and Yannis Semertzidis for the discussion of the prospects for experimental detection. This work was supported by the U.S. Department of Energy under Contracts No. DE-FG-88ER40388, DE-AC02-98CH10886, and DE-FG-88ER41723. NR 15 TC 10 Z9 10 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 18 PY 2011 VL 84 IS 3 AR 037503 DI 10.1103/PhysRevD.84.037503 PG 2 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 809CC UT WOS:000294027400006 ER PT J AU Low, I Vichi, A AF Low, Ian Vichi, Alessandro TI Production of a composite Higgs boson SO PHYSICAL REVIEW D LA English DT Article ID ELECTROWEAK SYMMETRY-BREAKING; TO-LEADING ORDER; PHENOMENOLOGICAL LAGRANGIANS; GLUON FUSION; LHC; MODELS; DECAY; MASS AB We present a model-independent prescription for computing the gluon fusion production rate of a composite Higgs boson, which arises as a pseudo-Nambu-Goldstone boson, using effective Lagrangians. The calculation incorporates three different effects due to the composite nature of the Higgs, some of which were neglected previously. We apply the prescription to models with and without the collective breaking mechanism. In sharp contrast with the case of a fundamental Higgs scalar, the rate only depends on the decay constant f and is not sensitive to masses of new particles. After including electroweak constraints, there is a substantial reduction in the rate, in the range of 10%-30% or greater. C1 [Low, Ian] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Low, Ian] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. [Vichi, Alessandro] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland. RP Low, I (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. RI lebert, thomas/H-4032-2011 FU U.S. Department of Energy [DE-AC02-06CH11357, DE-FG02-91ER40684]; Swiss National Science Foundation [200021-116372] FX We acknowledge extensive discussions with R. Rattazzi. One of us (I. L.) also thanks K. Agashe for clarifications on aspects of the holographic Higgs models. This work is supported in part by the U.S. Department of Energy under Contracts DE-AC02-06CH11357 and DE-FG02-91ER40684, and by the Swiss National Science Foundation under Contract No. 200021-116372. NR 53 TC 43 Z9 43 U1 1 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 18 PY 2011 VL 84 IS 4 AR 045019 DI 10.1103/PhysRevD.84.045019 PG 13 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 809CE UT WOS:000294027600011 ER PT J AU Lee, JW Zhou, W Idrobo, JC Pennycook, SJ Pantelides, ST AF Lee, Jaekwang Zhou, Wu Idrobo, Juan C. Pennycook, Stephen J. Pantelides, Sokrates T. TI Vacancy-Driven Anisotropic Defect Distribution in the Battery-Cathode Material LiFePO4 SO PHYSICAL REVIEW LETTERS LA English DT Article ID POSITIVE-ELECTRODE MATERIALS; RANDOM-WALK; MN; FE; NI; CO; TRANSPORT; PHOSPHATE; BEHAVIOR; OLIVINES AB Li-ion mobility in LiFePO4, a key property for energy applications, is impeded by Fe antisite defects (Fe-Li) that form in select b-axis channels. Here we combine first-principles calculations, statistical mechanics, and scanning transmission electron microscopy to identify the origin of the effect: Li vacancies (V-Li) are confined in one-dimensional b-axis channels, shuttling between neighboring Fe-Li. Segregation in select channels results in shorter Fe-Li-Fe-Li spans, whereby the energy is lowered by the V-Li's spending more time bound to end-point Fe-Li's. V-Li-Fe-Li-V-Li complexes also form, accounting for observed electron energy loss spectroscopy features. C1 [Lee, Jaekwang; Zhou, Wu; Idrobo, Juan C.; Pantelides, Sokrates T.] Vanderbilt Univ, Dept Phys Astron, Nashville, TN 37235 USA. [Lee, Jaekwang; Zhou, Wu; Idrobo, Juan C.; Pennycook, Stephen J.; Pantelides, Sokrates T.] Oak Ridge Natl Lab, Mat Sci Technol Div, Oak Ridge, TN 37831 USA. RP Lee, JW (reprint author), Vanderbilt Univ, Dept Phys Astron, 221 Kirkland Hall, Nashville, TN 37235 USA. RI Zhou, Wu/D-8526-2011; Idrobo, Juan/H-4896-2015 OI Zhou, Wu/0000-0002-6803-1095; Idrobo, Juan/0000-0001-7483-9034 FU National Science Foundation [DMR-0938330]; Office of Basic Energy Sciences, U.S. Department of Energy; Office of Basic Energy Sciences, Materials Sciences and Engineering Division, U.S. Department of Energy; DOE [DE-FG02-09ER46554]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX We thank Dr. Nancy Dudney, who supplied the LiFePO4 sample for EELS measurement. This research was partially supported by the National Science Foundation under Grant No. DMR-0938330 (J. C. I. and W. Z.), by ORNL's Shared Research Equipment (SHaRE) User Facility, which is sponsored by the Office of Basic Energy Sciences, U.S. Department of Energy (J. C. I.) and the Office of Basic Energy Sciences, Materials Sciences and Engineering Division, U.S. Department of Energy (S. J. P., J. L., and S. T. P.), DOE Grant No. DE-FG02-09ER46554 (S. T. P.), and by the McMinn Endowment (S. T. P.) at Vanderbilt University. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 22 TC 29 Z9 29 U1 2 U2 69 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 18 PY 2011 VL 107 IS 8 AR 085507 DI 10.1103/PhysRevLett.107.085507 PG 5 WC Physics, Multidisciplinary SC Physics GA 809OB UT WOS:000294065500001 PM 21929178 ER PT J AU Bellesia, G Chundawat, SPS Langan, P Dale, BE Gnanakaran, S AF Bellesia, Giovanni Chundawat, Shishir P. S. Langan, Paul Dale, Bruce E. Gnanakaran, S. TI Probing the Early Events Associated with Liquid Ammonia Pretreatment of Native Crystalline Cellulose SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID NEUTRON FIBER DIFFRACTION; SYNCHROTRON X-RAY; MOLECULAR-DYNAMICS; SYSTEM; CONVERSION; DISSOLUTION; SIMULATION; MECHANISM; BIOMASS; WATER AB Various chemicals are being explored for catalyzing efficient lignocellulose deconstruction. In particular, when liquid ammonia is used to convert the naturally occurring cellulose crystalline phase I(beta), to cellulose Mb the rearrangement of the hydrogen bond network in cellulose III(I) results in enhanced hydrolysis yields. We use molecular dynamics simulations to analyze the interaction between a cellulose I(beta) fibril and ammonia. Our simulations reveal that early structural changes in the fibril are driven by the rapid formation of an extended hydrogen bond network between the solvent-exposed surface chains and ammonia that precedes ammonia penetration into the fibril. The emergence of this hydrogen bond network causes relative shifting of the cellulose layers within the fibril that in turn leads to the formation of channels orthogonal to the (100) and (-100) fibril surfaces. The channels allow ammonia molecules to penetrate into the cellulose fibril. These findings provide avenues for improving existing chemical pretreatments to make them more effective and economical. C1 [Bellesia, Giovanni; Gnanakaran, S.] Los Alamos Natl Lab, T6, Los Alamos, NM 87545 USA. [Bellesia, Giovanni] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA. [Chundawat, Shishir P. S.; Dale, Bruce E.] Michigan State Univ, Dept Chem Engn & Mat Sci, Biomass Convers Res Lab, E Lansing, MI 48824 USA. [Langan, Paul] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. [Chundawat, Shishir P. S.; Dale, Bruce E.] DOE Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA. RP Gnanakaran, S (reprint author), Los Alamos Natl Lab, T6, POB 1663, Los Alamos, NM 87545 USA. EM gnana@lanl.gov RI Langan, Paul/N-5237-2015; OI Langan, Paul/0000-0002-0247-3122; Gnanakaran, S/0000-0002-9368-3044; Chundawat, Shishir/0000-0003-3677-6735 FU LANL LDRD-X98U program; DOE Great Lakes Bioenergy Research Center, DOE BER Office of Science [DE-FC02-07ER64494] FX This work was funded by the LANL LDRD-X98U program and the computational resources were provided by LANL institutional computing. S.P.S.C. and B.E.D. thank the DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science DE-FC02-07ER64494) for support NR 32 TC 17 Z9 17 U1 0 U2 13 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD AUG 18 PY 2011 VL 115 IS 32 BP 9782 EP 9788 DI 10.1021/jp2048844 PG 7 WC Chemistry, Physical SC Chemistry GA 805WB UT WOS:000293758600011 PM 21728311 ER PT J AU Babarao, R Dai, S Jiang, DE AF Babarao, Ravichandar Dai, Sheng Jiang, De-en TI Understanding the High Solubility of CO2 in an Ionic Liquid with the Tetracyanoborate Anion SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; CARBON-DIOXIDE; FORCE-FIELD; SELECTIVITY; ABSORPTION; SEPARATION; PACKAGE; PF6 AB The ionic liquid 1-ethyl-3-methylimidazolium tetracyanoborate, [mini] [B(CN)(4)], shows greater CO2 solubility than several popular ionic liquids (ILs) of different anions including [emim]bis(trifluoromethylsulfonyl)imide [emim] [Tf2N]. Herein, both classical molecular dynamics simulation and quantum mechanical calculations were used to understand the high solubility of CO2 in the [emim][B(CN)(4)] IL. We found that the solubility is dictated by the cation-anion interaction, while the CO2-anion interaction plays a secondary role. The atom-atom radial distribution functions (RDFs) between cation and anion show weaker interaction in [emim][B(CN)(4)] than in [emim] [Tf2N]. A good correlation is observed between gas-phase cation-anion interaction energy with CO2 solubility at 1 bar and 298 K, suggesting that weaker cation-anion interaction leads to higher CO2 solubility. MD simulation of CO2 in the ILs showed that CO2 is closer to the anion than to the cation and that it interacts more strongly with [B(CN)(4)] than with [Tf2N]. Moreover, a higher volume expansion is observed in [emim][B(CN)(4)] than in [emim] [Tf2N] at different mole fractions of CO2. These results indicate that [B(CN)(4)] as a small and highly symmetric anion is unique in giving a high CO2 solubility by interacting weakly with the cation and thus allowing easy creation of cavity for close contact with CO2. C1 [Babarao, Ravichandar; Dai, Sheng; Jiang, De-en] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37966 USA. RP Jiang, DE (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM jiangd@ornl.gov RI Jiang, De-en/D-9529-2011; Babarao, Ravichandar/F-5491-2012; Dai, Sheng/K-8411-2015 OI Jiang, De-en/0000-0001-5167-0731; Dai, Sheng/0000-0002-8046-3931 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. We thank Dr. Shannon Mahurin for helpful discussion and Dr. Oleg Borodin for giving us the force field parameter for [emim][B(CN)4] ionic liquid. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 41 TC 58 Z9 59 U1 5 U2 85 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD AUG 18 PY 2011 VL 115 IS 32 BP 9789 EP 9794 DI 10.1021/jp205399r PG 6 WC Chemistry, Physical SC Chemistry GA 805WB UT WOS:000293758600012 PM 21721541 ER PT J AU Qian, S Heller, WT AF Qian, Shuo Heller, William T. TI Peptide-Induced Asymmetric Distribution of Charged Lipids in a Vesicle Bilayer Revealed by Small-Angle Neutron Scattering SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID PHOSPHOLIPID FLIP-FLOP; X-RAY-DIFFRACTION; ANTIMICROBIAL PEPTIDES; TRANSMEMBRANE PEPTIDES; PORE FORMATION; MEMBRANES; ALAMETHICIN; MODEL; MELITTIN; TRANSLOCATION AB Cellular membranes are complex mixtures of lipids, proteins, and other small molecules that provide functional, dynamic barriers between the cell and its environment, as well as between environments within the cell. The lipid composition of the membrane is highly specific and controlled in terms of both content and lipid localization. The membrane structure results from the complex interplay between the wide varieties of molecules present. Here, small-angle neutron scattering and selective deuterium labeling were used to probe the impact of the membrane-active peptides melittin and alamethicin on the structure of lipid bilayers composed of a mixture of the lipids dimyristoyl phosphatidylglycerol (DMPG) and chain-perdeuterated dimyristoyl phosphatidylcholine (DMPC). We found that both peptides enriched the outer leaflet of the bilayer with the negatively charged DMPG, creating an asymmetric distribution of lipids. The level of enrichment is peptide concentration-dependent and is stronger for melittin than it is for alamethicin. The enrichment between the inner and outer bilayer leaflets occurs at very low peptide concentrations and increases with peptide concentration, including when the peptide adopts a membrane-spanning, pore-forming state. The results suggest that these membrane-active peptides may have a secondary stressful effect on target cells at low concentrations that results from a disruption of the lipid distribution between the inner and outer leaflets of the bilayer that is independent of the formation of transmembrane pores. C1 [Heller, William T.] Oak Ridge Natl Lab, Ctr Struct Mol Biol, Div Chem Sci, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Neutron Scattering Sci Div, Ctr Struct Mol Biol, Oak Ridge, TN 37831 USA. RP Heller, WT (reprint author), Oak Ridge Natl Lab, Ctr Struct Mol Biol, Div Chem Sci, Oak Ridge, TN 37831 USA. EM hellerwt@ornl.gov OI Qian, Shuo/0000-0002-4842-828X FU Office of Biological and Environmental Research [DE-AC05-00OR22725] FX The authors would like to thank H. M. O'Neill for use of the CD instrument. This research at Oak Ridge National Laboratory's Center for Structural Molecular Biology (Project ERKP291) was supported by the Office of Biological and Environmental Research using facilities supported by the U.S. Department of Energy, managed by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725. NR 39 TC 18 Z9 18 U1 2 U2 28 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD AUG 18 PY 2011 VL 115 IS 32 BP 9831 EP 9837 DI 10.1021/jp204045t PG 7 WC Chemistry, Physical SC Chemistry GA 805WB UT WOS:000293758600016 PM 21751797 ER PT J AU Sava, DF Rodriguez, MA Chapman, KW Chupas, PJ Greathouse, JA Crozier, PS Nenoff, TM AF Sava, Dorina F. Rodriguez, Mark A. Chapman, Karena W. Chupas, Peter J. Greathouse, Jeffery A. Crozier, Paul S. Nenoff, Tina M. TI Capture of Volatile Iodine, a Gaseous Fission Product, by Zeolitic Imidazolate Framework-8 SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article AB Here we present detailed structural evidence of captured molecular iodine (I-2), a volatile gaseous fission product, within the metal-organic framework ZIF-8 [zeolitic imidazolate framework-8 or Zn(2-methylimidazolate)(2)]. There is worldwide interest in the effective capture and storage of radioiodine, as it is both produced from nuclear fuel reprocessing and also commonly released in nuclear reactor accidents. Insights from multiple complementary experimental and computational probes were combined to locate I-2 molecules crystallographically inside the sodalite cages of ZIF-8 and to understand the capture of I-2 via bonding with the framework These structural tools included high-resolution synchrotron powder X-ray diffraction, pair distribution function analysis, and molecular modeling simulations. Additional tests indicated that extruded ZIF-8 pellets perform on par with ZIF-8 powder and are industrially suitable for I-2 capture. C1 [Sava, Dorina F.; Nenoff, Tina M.] Sandia Natl Labs, Surface & Interface Sci Dept, Albuquerque, NM 87185 USA. [Rodriguez, Mark A.] Sandia Natl Labs, Mat Characterizat Dept, Albuquerque, NM 87185 USA. [Greathouse, Jeffery A.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. [Crozier, Paul S.] Sandia Natl Labs, Scalable Algorithms Dept, Albuquerque, NM 87185 USA. [Chapman, Karena W.; Chupas, Peter J.] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA. RP Nenoff, TM (reprint author), Sandia Natl Labs, Surface & Interface Sci Dept, POB 5800, Albuquerque, NM 87185 USA. EM tmnenof@sandia.gov RI yarasi, soujanya/F-5531-2011; Chapman, Karena/G-5424-2012; Sava Gallis, Dorina/D-2827-2015 FU U.S. DOE-NE/FCRD-SWG; U.S. DOE-NE/FCRD-NEAMS; U.S. DOE's NNSA [DE-AC04-94AL85000]; U.S. DOE [DE-AC02-06CH11357] FX This work was supported by the U.S. DOE-NE/FCRD-SWG and -NEAMS. Sandia National Laboratories is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. DOE's NNSA under Contract DE-AC04-94AL85000. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. DOE/Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract DE-AC02-06CH11357. NR 25 TC 143 Z9 143 U1 15 U2 132 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 17 PY 2011 VL 133 IS 32 BP 12398 EP 12401 DI 10.1021/ja204757x PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 818GO UT WOS:000294740000021 PM 21766858 ER PT J AU Wolf, SE Leiterer, J Pipich, V Barrea, R Emmerling, F Tremel, W AF Wolf, Stephan E. Leiterer, Jork Pipich, Vitaliy Barrea, Raul Emmerling, Franziska Tremel, Wolfgang TI Strong Stabilization of Amorphous Calcium Carbonate Emulsion by Ovalbumin: Gaining Insight into the Mechanism of 'Polymer-Induced Liquid Precursor' Processes SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID ANGLE NEUTRON-SCATTERING; DYNAMIC LIGHT-SCATTERING; UTERINE FLUID; HEN OVALBUMIN; PHASE; CACO3; DISPERSIONS; EGGSHELL; GROWTH; FILMS AB The impact of the ovo proteins ovalbumin and lysozyme- present in the first stage of egg shell formation-on the homogeneous formation of the liquid amorphous calcium carbonate (LACC) precursor, was studied by a combination of complementing methods: in situ WAXS, SANS, XANES, TEM, and immunogold labeling. Lysozyme (pI = 9.3) destabilizes the LACC emulsion whereas the glycoprotein ovalbumin (pI = 4.7) extends the lifespan of the emulsified state remarkably. In the light of the presented data: (a) Ovalbumin is shown to behave commensurable to the 'polymer-induced liquid precursor' (PILP) process proposed by Gower et al. Ovalbumin can be assumed to take a key role during eggshell formation where it serves as an effective stabilization agent for transient precursors and prevents undirected mineralization of the eggshell. (b) It is further shown that the emulsified LACC carries a negative surface charge and is electrostatically stabilized. (c) We propose that the liquid amorphous calcium carbonate is affected by polymers by depletion stabilization and de-emulsification rather than 'induced' by acidic proteins and polymers during a so-called polymer-induced liquid-precursor process. The original PILP coating effect, first reported by Gower et al., appears to be a result of a de-emulsification process of a stabilized LACC phase. The behavior of the liquid amorphous carbonate phase and the polymer-induced liquid-precursor phase itself can be well described by colloid chemical terms: electrostatic and depletion stabilization and de-emulsification by depletion destabilization. C1 [Wolf, Stephan E.] Univ Bourgogne, CNRS Biogeosci 5561, F-21000 Dijon, France. [Leiterer, Jork; Emmerling, Franziska] BAM Fed Inst Mat Res & Testing, D-12489 Berlin, Germany. [Pipich, Vitaliy] Forschungszentrum Julich GmbH, JCNS, Outstat FRM 2, D-85747 Garching, Germany. [Barrea, Raul] Argonne Natl Lab, Adv Photon Source, BioCAT, Argonne, IL 60439 USA. [Wolf, Stephan E.; Tremel, Wolfgang] Johannes Gutenberg Univ Mainz, Inst Inorgan Chem & Analyt Chem, D-55099 Mainz, Germany. RP Wolf, SE (reprint author), Univ Bourgogne, CNRS Biogeosci 5561, 6 Blvd Gabriel, F-21000 Dijon, France. EM stephan.wolf@u-bourgogne.fr RI ID, BioCAT/D-2459-2012; Tremel, Wolfgang/D-8125-2011; Emmerling, Franziska/G-3011-2010; Wolf, Stephan/O-4714-2015; Mainz, EMZ-M/E-3619-2016 OI Tremel, Wolfgang/0000-0002-4536-994X; Emmerling, Franziska/0000-0001-8528-0301; Wolf, Stephan/0000-0002-3747-8097; FU Deutsche Forschungsgemeinschaft (DFG) [1415]; Konrad Adenauer Foundation; U.S. DOE [DE-AC02-06CH11357]; National Institutes of Health [RR-08630] FX We thank Simone Rolf and Ralf Bienert (BAM) for technical support at the beamline. We are much obliged to Frederic Mann and Ute Schlossmacher for assistance in IG labeling and fruitful discussions. We are grateful to the Deutsche Forschungsgemeinschaft (DFG) for support within the priority program No. 1415: "Kristalline Nichtgleichgewichtsphasen". S.E.W.gratefully acknowledges the Konrad Adenauer Foundation for a doctoral fellowship. We thank the BioCAT team at the Advanced Photon Source for excellent support during XAS experiments, and we are grateful to Dr. David Gore for his careful revision of the English style. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE), Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. BioCAT is a National Institutes of Health-supported Research Center RR-08630. NR 51 TC 54 Z9 55 U1 5 U2 77 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 17 PY 2011 VL 133 IS 32 BP 12642 EP 12649 DI 10.1021/ja202622g PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA 818GO UT WOS:000294740000061 PM 21736300 ER PT J AU Wanjala, BN Fang, B Luo, J Chen, YS Yin, J Engehard, MH Loukrakpam, R Zhong, CJ AF Wanjala, Bridgid N. Fang, Bin Luo, Jin Chen, Yongsheng Yin, Jun Engehard, Mark H. Loukrakpam, Rameshwori Zhong, Chuan-Jian TI Correlation between Atomic Coordination Structure and Enhanced Electrocatalytic Activity for Trimetallic Alloy Catalysts SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID OXYGEN REDUCTION REACTION; MEMBRANE FUEL-CELLS; RAY PHOTOELECTRON-SPECTROSCOPY; ABSORPTION SPECTROSCOPY; CONTROLLABLE SIZES; TRANSITION-METALS; NANOPARTICLES; CARBON; FE; PERFORMANCE AB This Article describes findings of the correlation between the atomic scale structure and the electrocatalytic performance of nanoengineered PtNiFe/C catalysts treated at different temperatures for oxygen reduction reaction, aiming at providing a new fundamental insight into the role of the detailed atomic alloying and interaction structures of the catalysts in fuel cell reactions. Both mass and specific activities of the catalysts were determined using rotating disk electrode and proton exchange membrane fuel cell. The mass activities extracted from the kinetic regions in both measurements revealed a consistent trend of decreasing activity with increasing temperature. However, the specific activity data from RDE revealed an opposite trend, that is, increasing activity with increasing temperature. In addition to TEM, XRD, and XPS characterizations, a detailed XAFS analysis of the atomic scale coordination structures was carried out, revealing increased heteroatomic coordination with improved alloying structures for the catalyst treated at the elevated temperatures. XPS analysis has further revealed a reduced surface concentration of Pt for the catalyst for the high temperature treated catalyst. The higher mass activity for the lower temperature treated catalyst is due to Pt surface enrichment on the surface sites, whereas the higher specific activity for the higher temperature treated catalyst reflects an enhanced Pt-alloying surface sites. These findings have thus provided a new insight for assessing the structural correlation of the electrocatalytic activity with the fcc-type lattice change and the atomic scale alloying characteristics. Implications of these findings to the design of highly active alloy electrocatalysts are discussed, along with their enhanced electrocatalytic performance in the fuel cell. C1 [Chen, Yongsheng] Penn State Univ, EMS Energy Inst, John & Willie Leone Family Dept Energy & Mineral, University Pk, PA 16802 USA. [Chen, Yongsheng] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA. [Engehard, Mark H.] Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA. [Wanjala, Bridgid N.; Fang, Bin; Luo, Jin; Yin, Jun; Loukrakpam, Rameshwori; Zhong, Chuan-Jian] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA. RP Chen, YS (reprint author), Penn State Univ, EMS Energy Inst, John & Willie Leone Family Dept Energy & Mineral, University Pk, PA 16802 USA. EM yzc2@psu.edu; cjzhong@binghamton.edu RI Engelhard, Mark/F-1317-2010; ID, MRCAT/G-7586-2011; Chen, Yongsheng/P-4800-2014; Zhong, Chuan-Jian/D-3394-2013; OI Engelhard, Mark/0000-0002-5543-0812 FU National Science Foundation [CBET-0709113, CHE 0848701]; Department of Energy; MRCAT member institutions; Office of Basic Energy Sciences of the U.S. Department of Energy; National Science Foundation Division of Materials Research; Office of Basic Energy Sciences of the U.S. Department of Energy [W-31-109-Eng-38]; Department of Energy's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory FX This work was supported by the National Science Foundation (CBET-0709113, CHE 0848701). MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. The XAFS work at the 9-BM Beamlines is supported in part by the Office of Basic Energy Sciences of the U.S. Department of Energy and by the National Science Foundation Division of Materials Research. Use of the Advanced Photon Source is supported by the Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. W-31-109-Eng-38. The XPS was performed using EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory. We also thank Dr. H. R. Naslund for assistance in DCP-AES analysis, and Dr. I.-T. Bae for assistance in HRTEM analysis. NR 47 TC 51 Z9 53 U1 6 U2 62 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 17 PY 2011 VL 133 IS 32 BP 12714 EP 12727 DI 10.1021/ja2040464 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA 818GO UT WOS:000294740000068 PM 21711038 ER PT J AU Galan, BR Schoffel, J Linehan, JC Seu, C Appel, AM Roberts, JAS Helm, ML Kilgore, UJ Yang, JY DuBois, DL Kubiak, CP AF Galan, Brandon R. Schoeffel, Julia Linehan, John C. Seu, Candace Appel, Aaron M. Roberts, John A. S. Helm, Monte L. Kilgore, Uriah J. Yang, Jenny Y. DuBois, Daniel L. Kubiak, Clifford P. TI Electrocatalytic Oxidation of Formate by [Ni((P2N2R ')-N-R)(2)(CH3CN)](2+) Complexes SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID HYDRIDE DONOR ABILITIES; TRANSITION-METAL HYDRIDES; ACID FUEL-CELLS; H-2 PRODUCTION; DIPHOSPHINE LIGANDS; HYDROGEN GENERATION; MOLECULAR CATALYSTS; CARBON-DIOXIDE; NI; PROTON AB [Ni((PRN2R')-N-2)(2)(CH3CN)](2+) complexes with R. = Ph, R'= 4-MeOPh or R = Cy, R' = Ph, and a mixed-ligand [Ni(p(2)(R)N(2)(R'))(p(R"):NwTR2) (rw IN (CN)-C-13)](2+) with R = Cy, R' = Ph, R" = Ph, have been synthesized and characterized by single-crystal X-ray crystallography. These and previously reported complexes are shown to be electrocatalysts for the oxidation of formate in solution to produce CO2, protons, and electrons, with rates that are first-order in catalyst and formate at formate concentrations below similar to 0.04 M (34 equiv). At concentrations above similar to 0.06 M formate (52 equiv), catalytic rates become nearly independent of formate concentration. For the catalysts studied, maximum observed turnover frequencies vary from <1.1 to 15.8 s(-1) at room temperature, which are the highest rates yet reported for formate oxidation by homogeneous catalysts. These catalysts are the only base-metal electrocatalysts as well as the only homogeneous electrocatalysts reported to date for the oxidation of formate. An acetate complex demonstrating an eta(1)-OC(O)CH3 binding mode to nickel has also been synthesized and characterized by single-crystal X-ray crystallography. Based on this structure and the electrochemical and spectroscopic data, a mechanistic scheme for electrocatalytic formate oxidation is proposed which involves formate binding followed by a rate-limiting proton and two-electron transfer step accompanied by CO2 liberation. The pendant amines have been demonstrated to be essential for electrocatalysis, as no activity toward formate oxidation was observed for the similar [Ni(depe)(2)](2+) (depe = 1,2-bis(diethylphosphino)ethane) complex. C1 [Galan, Brandon R.; Linehan, John C.; Appel, Aaron M.; Roberts, John A. S.; Kilgore, Uriah J.; Yang, Jenny Y.; DuBois, Daniel L.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. [Schoeffel, Julia; Seu, Candace; Kubiak, Clifford P.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA. [Helm, Monte L.] Ft Lewis Coll, Dept Chem, Durango, CO 81301 USA. RP Appel, AM (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. EM aaron.appel@pnl.gov; ckubiak@ucsd.edu OI Appel, Aaron/0000-0002-5604-1253 FU Deutsche Forschungsgemeinschaft; NSF GRFP; Helios Solar Energy Research Center; Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy [AC02-05CH11231]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [FWP 56073] FX Funding by Deutsche Forschungsgemeinschaft (J.S.), the NSF GRFP (C.S.), and by the Helios Solar Energy Research Center, which is supported by the Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, is gratefully acknowledged. B.R.G., J.C.L., A.M.A., and D.L.D. were supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences. JAS.R., M.L.H., UJ.K., and J.Y.Y. were supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under FWP 56073. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy. NR 43 TC 52 Z9 52 U1 3 U2 43 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 17 PY 2011 VL 133 IS 32 BP 12767 EP 12779 DI 10.1021/ja204489e PG 13 WC Chemistry, Multidisciplinary SC Chemistry GA 818GO UT WOS:000294740000073 PM 21692477 ER PT J AU Ly, S Petrlova, J Huser, T Fore, S Gao, TJ Voss, J Laurence, TA AF Ly, Sonny Petrlova, Jitka Huser, Thomas Fore, Samantha Gao, Tingjuan Voss, John Laurence, Ted A. TI Stoichiometry of Reconstituted High-Density Lipoproteins in the Hydrated State Determined by Photon Antibunching SO BIOPHYSICAL JOURNAL LA English DT Article ID APOLIPOPROTEIN-A-I; FLUCTUATION SPECTROSCOPY; MOLECULAR-COMPLEXES; BILAYER NANODISCS; BELT MODEL; FLUORESCENCE; RESONANCE; PURIFICATION; CONFORMATION; PARTICLES AB Apolipoprotein A-I plays a central role in the solution structure of high-density lipoproteins. Determining the stoichiometry of lipid-bound apo A-I in the hydrated state is therefore fundamental to understanding how high-density lipoproteins form and function. Here, we use the quantum optical phenomenon of photon antibunching to determine the number of apo A-I molecules bound to discoidal lipoproteins and compare this with values obtained by photon-counting histogram analysis. Both the photon antibunching and photon-counting analyses show that reconstituted high-density lipoprotein particles contain two apo A-I molecules, which is in agreement with the commonly accepted double-belt model. C1 [Ly, Sonny; Laurence, Ted A.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA. [Petrlova, Jitka; Voss, John] Univ Calif Davis, Dept Biochem & Mol Biol, Sacramento, CA 95817 USA. [Huser, Thomas] Univ Calif Davis, Dept Internal Med, Sacramento, CA 95817 USA. [Ly, Sonny; Huser, Thomas; Fore, Samantha; Gao, Tingjuan] Univ Calif Davis, Natl Sci Fdn, Ctr Biophoton Sci & Technol, Sacramento, CA 95817 USA. RP Laurence, TA (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA USA. EM laurence2@llnl.gov RI Laurence, Ted/E-4791-2011; Huser, Thomas/H-1195-2012; OI Laurence, Ted/0000-0003-1474-779X; Huser, Thomas/0000-0003-2348-7416; Voss, John/0000-0001-9279-209X FU LLNL; U.S. Department of Energy through the LLNL [DE-AC52-07NA27344] FX S.L. received a Lawrence Scholarship from the Lawrence Scholarship Program of LLNL. Parts of this work were performed under the auspices of the U.S. Department of Energy through the LLNL under DE-AC52-07NA27344. NR 33 TC 2 Z9 2 U1 1 U2 8 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 EI 1542-0086 J9 BIOPHYS J JI Biophys. J. PD AUG 17 PY 2011 VL 101 IS 4 BP 970 EP 975 DI 10.1016/j.bpj.2011.06.060 PG 6 WC Biophysics SC Biophysics GA 810CS UT WOS:000294103600028 PM 21843489 ER PT J AU Arakawa, M Kagi, H Fernandez-Baca, JA Chakoumakos, BC Fukazawa, H AF Arakawa, Masashi Kagi, Hiroyuki Fernandez-Baca, Jaime A. Chakoumakos, Bryan C. Fukazawa, Hiroshi TI The existence of memory effect on hydrogen ordering in ice: The effect makes ice attractive SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID NEUTRON-DIFFRACTION; FERROELECTRIC ICE; PHASE-TRANSITION; WATER ICE; DOPED ICE; DISPERSION; XI AB The existence of ferroelectric ice XI with ordered hydrogen in space becomes of interest in astronomy and physical chemistry because of the strong electrostatic force. However, the influence was believed to be limited because it forms in a narrow temperature range. From neutron diffraction experiments, we found that small hydrogen-ordered domains exist at significantly higher temperature and the domains induce the growth of "bulk" ice XI. The small ordered domain is named "memory" of hydrogen ordered ice because it is the residual structure of ice XI. Since the memory exists up to at least 111 K, most of ices in the solar system are hydrogen ordered and may have ferroelectricity. The small hydrogen-ordered domains govern the cosmochemical properties of ice and evolution of icy grains in the universe. Citation: Arakawa, M., H. Kagi, J. A. Fernandez-Baca, B. C. Chakoumakos, and H. Fukazawa (2011), The existence of memory effect on hydrogen ordering in ice: The effect makes ice attractive, Geophys. Res. Lett., 38, L16101, doi:10.1029/2011GL048217. C1 [Arakawa, Masashi] Kyushu Univ, Fac Sci, Dept Chem, Quantum Chem Lab,Hikashi Ku, Fukuoka 8128581, Japan. [Fernandez-Baca, Jaime A.; Chakoumakos, Bryan C.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Arakawa, Masashi; Kagi, Hiroyuki; Fukazawa, Hiroshi] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Ibaraki 3191195, Japan. [Kagi, Hiroyuki] Univ Tokyo, Grad Sch Sci, Geochem Res Ctr, Bunkyo Ku, Tokyo 1130033, Japan. RP Arakawa, M (reprint author), Kyushu Univ, Fac Sci, Dept Chem, Quantum Chem Lab,Hikashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan. EM arakawa@chem.kyushu-univ.jp; kagi@eqchem.s.u-tokyo.ac.jp; fernandezbja@ornl.gov; chakoumakobc@ornl.gov; fukazawa.hiroshi@jaea.go.jp RI Fernandez-Baca, Jaime/C-3984-2014; Chakoumakos, Bryan/A-5601-2016 OI Fernandez-Baca, Jaime/0000-0001-9080-5096; Chakoumakos, Bryan/0000-0002-7870-6543 FU JAEA-ORNL; Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy; JSPS [08J03621, 19S0205, 18740342]; Global COE Programs for Chemistry Innovation FX This work was supported by the JAEA-ORNL part of the US-Japan Cooperative Program on Neutron Scattering. We thank C. Redmon and W. Zhou (ORNL) for assistance with the neutron powder diffraction experiments. This research was sponsored by the Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy. This study was financially supported by grants-in-aid for JSPS fellows (08J03621), for creative scientific research (19S0205), and for young scientists (18740342) from the Japan Society for Promotion of Science (JSPS) and the Global COE Programs for Chemistry Innovation and for Deep Earth Mineralogy. NR 21 TC 6 Z9 6 U1 0 U2 10 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 17 PY 2011 VL 38 AR L16101 DI 10.1029/2011GL048217 PG 5 WC Geosciences, Multidisciplinary SC Geology GA 810MP UT WOS:000294129700003 ER PT J AU Tokunaga, TK AF Tokunaga, Tetsu K. TI Physicochemical controls on adsorbed water film thickness in unsaturated geological media SO WATER RESOURCES RESEARCH LA English DT Article ID ELECTRICAL DOUBLE-LAYER; POROUS-MEDIA; CAPILLARY CONDENSATION; HAMAKER CONSTANTS; ROUGH SURFACES; DISPERSION FORCES; LIQUID RETENTION; REPULSIVE FORCES; WETTING FILMS; FLOW AB Adsorbed water films commonly coat mineral surfaces in unsaturated soils and rocks, reducing flow and transport rates. Therefore, it is important to understand how adsorbed film thickness depends on matric potential, surface chemistry, and solution chemistry. Here the problem of adsorbed water film thickness is examined by combining capillary scaling with the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. Novel aspects of this analysis include determining capillary influences on film thicknesses and incorporating solution chemistry-dependent electrostatic potential at air-water interfaces. Capillary analysis of monodisperse packings of spherical grains provided estimated ranges of matric potentials where adsorbed films are stable and showed that pendular rings within drained porous media retain most of the "residual" water except under very low matric potentials. Within drained pores, capillary contributions to thinning of adsorbed films on spherical grains are shown to be small, such that DLVO calculations for flat surfaces are suitable approximations. Hamaker constants of common soil minerals were obtained to determine ranges of the dispersion component to matric potential-dependent film thickness. The pressure component associated with electrical double-layer forces was estimated using the compression and linear superposition approximations. The pH-dependent electrical double-layer pressure component is the dominant contribution to film thicknesses at intermediate values of matric potential, especially in lower ionic strength solutions (<10 mol m(-3)) on surfaces with higher-magnitude electrostatic potentials (more negative than approximate to-50 mV). Adsorbed water films are predicted to usually range in thickness from approximate to 1 to 20 nm in drained pores and fractures of unsaturated environments. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Tokunaga, TK (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, 1 Cyclotron Rd,MS 70-108B, Berkeley, CA 94720 USA. EM tktokunaga@lbl.gov RI Tokunaga, Tetsu/H-2790-2014 OI Tokunaga, Tetsu/0000-0003-0861-6128 FU U.S. Department of Energy (DOE) [DE-AC02-05CH11231]; DOE, Basic Energy Sciences FX I thank Marc Lebeau and two anonymous reviewers for their thorough, expert reviews and very helpful comments. This work was carried out under U.S. Department of Energy (DOE) contract DE-AC02-05CH11231. Funding provided by the DOE, Basic Energy Sciences, Geosciences Research Program is gratefully acknowledged. NR 67 TC 27 Z9 28 U1 3 U2 27 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0043-1397 J9 WATER RESOUR RES JI Water Resour. Res. PD AUG 17 PY 2011 VL 47 AR W08514 DI 10.1029/2011WR010676 PG 12 WC Environmental Sciences; Limnology; Water Resources SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources GA 810LS UT WOS:000294127400003 ER PT J AU Mawhorter, RJ Murphy, BS Baum, AL Sears, TJ Yang, T Rupasinghe, PM McRaven, CP Shafer-Ray, NE Alphei, LD Grabow, JU AF Mawhorter, Richard J. Murphy, Benjamin S. Baum, Alexander L. Sears, Trevor J. Yang, T. Rupasinghe, P. M. McRaven, C. P. Shafer-Ray, N. E. Alphei, Lukas D. Grabow, Jens-Uwe TI Characterization of the ground X-1 state of (PbF)-Pb-204-F-19, (PbF)-Pb-206-F-19, (PbF)-Pb-207-F-19, and (PbF)-Pb-208-F-19 SO PHYSICAL REVIEW A LA English DT Article ID TRANSFORM MICROWAVE SPECTROMETER; P-ODD; PBF; TRANSITIONS; MOLECULES; BEAM AB Pure rotational spectra of the ground electronic-vibrational X-1 state of (PbF)-Pb-204-F-19, (PbF)-Pb-206-F-19, (PbF)-Pb-207-F-19, and (PbF)-Pb-208-F-19 are measured with a resonator pulsed supersonic jet Fourier-transform microwave spectrometer. Also reported is a new measurement of the Stark effect on the optical spectra of A <- X-1 transitions. These spectra are combined with published high-resolution infrared spectra of X-2 <-> X-1 transitions in order to create a complete picture of the ground state of lead monofluoride. For the microwave data, molecules are prepared by laser ablation of lead target rods and stabilized in a supersonic jet of neon mixed with sulfur hexafluoride. For the optical Stark spectra, a continuous source of molecules is created in a nozzle heated to 1000 degrees C. The microwave spectra confirm, improve, and extend previously reported constants that describe the rotational, spin-orbit, and hyperfine interactions of the ground electronic state of the PbF molecule. A discrepancy concerning the sign of the hyperfine constant describing the Pb-207 nucleus is discussed. Magnetic-field-dependent microwave spectra are used to characterize the Zeeman interaction in terms of two g factors of the body-fixed electronic wave function. The optical Stark spectra are used to characterize the electric dipole moment of the X-1 and A states. C1 [Mawhorter, Richard J.; Murphy, Benjamin S.; Baum, Alexander L.] Pomona Coll, Dept Phys & Astron, Claremont, CA 91711 USA. [Sears, Trevor J.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Yang, T.; Rupasinghe, P. M.; McRaven, C. P.; Shafer-Ray, N. E.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA. [Alphei, Lukas D.; Grabow, Jens-Uwe] Gottfried Wilhelm Leibniz Univ, Inst Phys Chem & Elektrochem, D-30167 Hannover, Germany. RP Mawhorter, RJ (reprint author), Pomona Coll, Dept Phys & Astron, Claremont, CA 91711 USA. RI Sears, Trevor/B-5990-2013 OI Sears, Trevor/0000-0002-5559-0154 FU Division of Chemical Sciences, Geosciences, Biosciences [DE-AC02-98CH10886]; National Science Foundation [NSF-0855431]; Deutsche Forschungsgemeinschaft (DFG); Land Niedersachsen; Pomona College FX Work by T.J.S. at Brookhaven National Laboratory was performed under Contract No. DE-AC02-98CH10886 with the US Department of Energy and supported by its Division of Chemical Sciences, Geosciences, & Biosciences. Work by N.E.S.-R. was performed with support from the National Science Foundation Grant No. NSF-0855431. J.U.-G. acknowledges funding from the Deutsche Forschungsgemeinschaft (DFG) and the Land Niedersachsen, and R.J.M., B. S. M., and A. L. B. appreciate the research support provided by the Pomona College Sontag Fellowship Program. We are indebted for the thoughtful comments and cross-checking of field-dependent energy levels by Mikhail Kozlov and Aleksandr Petrov of St. Petersburg Nuclear Physics Institute. NR 37 TC 13 Z9 13 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG 17 PY 2011 VL 84 IS 2 AR 022508 DI 10.1103/PhysRevA.84.022508 PG 12 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 808IV UT WOS:000293972300005 ER PT J AU Dekker, MC Herklotz, A Schultz, L Reibold, M Vogel, K Biegalski, MD Christen, HM Dorr, K AF Dekker, M. C. Herklotz, A. Schultz, L. Reibold, M. Vogel, K. Biegalski, M. D. Christen, H. M. Doerr, K. TI Magnetoelastic response of La0.7Sr0.3MnO3/SrTiO3 superlattices to reversible strain SO PHYSICAL REVIEW B LA English DT Article ID LA0.7CA0.3MNO3 FILMS; THIN LA0.7SR0.3MNO3; SPIN POLARIZATION; MAGNETOTRANSPORT; MAGNETORESISTANCE; MULTILAYERS; DEPENDENCE; INTERFACE; LAYERS AB The influence of an electrically controlled biaxial in-plane strain on the magnetization of superlattices of ferromagnetic La0.7Sr0.3MnO3 and SrTiO3 was studied for single-layer thicknesses of d = 1.5-13 nm. Super-lattices were grown by pulsed laser deposition on both SrTiO3(001) and piezoelectric 0.72Pb(Mg1/3Nb2/3)O-3-0.28PbTiO(3)(001), or PMN-PT(001), substrates and have been structurally characterized by x-ray diffraction (XRD) and transmission electron microscopy. Grazing-incidence XRD reveals the vertical homogeneity of the piezoelectrically controlled reversible in-plane strain, even in a 600-nm-thick superlattice containing 100 oxide interfaces. The as-grown strain is almost identical in all superlattices that are coherently grown, with small variations resulting from the partially relaxed growth of the first La0.7Sr0.3MnO3 layer on PMN-PT(001). The magnetic transition temperature decreases with the layer thickness d as a consequence of the finite layer thickness, and the strain-induced response of the magnetization changes its character from that of a long-range-ordered ferromagnet to that of a magnetically disordered (possibly electronically phase-separated) manganite. The strain response of a modified interface layer ("dead layer") of the thickness d(I) is distinguished from that of the layer's interior by its different temperature dependence, allowing an estimation of 10 angstrom < d(I) < 16 angstrom for the superlattices on PMN-PT. C1 [Dekker, M. C.; Herklotz, A.; Schultz, L.; Doerr, K.] IFW Dresden, D-01171 Dresden, Germany. [Reibold, M.; Vogel, K.] Tech Univ Dresden, Inst Struct Phys, D-01062 Dresden, Germany. [Biegalski, M. D.; Christen, H. M.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. [Doerr, K.] MLU Halle Wittenberg, Inst Phys, D-06120 Halle, Germany. RP Dekker, MC (reprint author), Max Planck Inst Microstruct Phys, Weinberg 2, D-06120 Halle, Germany. EM kathrin.doerr@physik.uni-halle.de RI Schultz, Ludwig/B-3383-2010; Christen, Hans/H-6551-2013 OI Christen, Hans/0000-0001-8187-7469 FU Deutsche Forschungsgemeinschaft [FOR 520]; Scientific User Facilities Division of the US Department of Energy FX This work has been supported by the Deutsche Forschungsgemeinschaft, Forschergruppe FOR 520 Ferroic Functional Elements "Ferroic Functional Elements." The portion of the research conducted at the Center for Nanophase Materials Sciences was sponsored by the Scientific User Facilities Division of the US Department of Energy. NR 53 TC 18 Z9 18 U1 1 U2 47 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 17 PY 2011 VL 84 IS 5 AR 054463 DI 10.1103/PhysRevB.84.054463 PG 8 WC Physics, Condensed Matter SC Physics GA 808JE UT WOS:000293973200007 ER PT J AU DeMange, P Negres, RA Raman, RN Colvin, JD Demos, SG AF DeMange, P. Negres, R. A. Raman, R. N. Colvin, J. D. Demos, S. G. TI Role of phase instabilities in the early response of bulk fused silica during laser-induced breakdown SO PHYSICAL REVIEW B LA English DT Article ID OPTICAL-CONSTANTS; ROOM-TEMPERATURE; DYNAMICS; QUARTZ; MATTER; MODEL; GLASS AB We report on the experimental and hydrocode modeling investigation of the early material response to localized energy deposition via nanosecond laser pulses in bulk fused silica. A time-resolved microscope system was used to acquire transient images with adequate spatial and temporal resolution to resolve the material behavior from the onset of the process. These images revealed a high-pressure shock front propagating at twice the speed of sound at ambient conditions and bounding a region of modified material at delays up to one nanosecond. Hydrocode simulations matching the experimental conditions were also performed and indicated initial pressures of similar to 40 GPa and temperatures of similar to 1 eV at the absorption region. Both the simulations and the image data show a clear boundary between distinct material phases, a hot plasma and solid silica, with a suggestion that growth of perturbations at the Rayleigh-Taylor unstable interface between the two phases is the seed mechanism for the growth of cracks into the stressed solid. C1 [DeMange, P.; Negres, R. A.; Raman, R. N.; Colvin, J. D.; Demos, S. G.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP DeMange, P (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94551 USA. FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 19 TC 11 Z9 11 U1 1 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 17 PY 2011 VL 84 IS 5 AR 054118 DI 10.1103/PhysRevB.84.054118 PG 7 WC Physics, Condensed Matter SC Physics GA 808JE UT WOS:000293973200001 ER PT J AU Bhowal, S Gangopadhyay, G Petrache, CM Ragnarsson, I Singh, AK Bhattacharya, S Hubel, H Neusser-Neffgen, A Al-Khatib, A Bringel, P Burger, A Nenoff, N Schonwasser, G Hagemann, GB Herskind, B Jensen, DR Sletten, G Fallon, P Gorgen, A Bednarczyk, P Curien, D Korichi, A Lopez-Martens, A Rao, BVT Reddy, TS Singh, N AF Bhowal, S. Gangopadhyay, G. Petrache, C. M. Ragnarsson, I. Singh, A. K. Bhattacharya, S. Huebel, H. Neusser-Neffgen, A. Al-Khatib, A. Bringel, P. Buerger, A. Nenoff, N. Schoenwasser, G. Hagemann, G. B. Herskind, B. Jensen, D. R. Sletten, G. Fallon, P. Goergen, A. Bednarczyk, P. Curien, D. Korichi, A. Lopez-Martens, A. Rao, B. V. T. Reddy, T. S. Singh, Nirmal TI Development of collective structures over noncollective excitations in Nd-139 SO PHYSICAL REVIEW C LA English DT Article ID HIGH-SPIN STATES; ROTATIONAL BANDS AB High-spin states in Nd-139 were investigated using the reaction Zr-96(Ca-48,5n) at a beam energy of 195 MeV and gamma-ray coincidences were acquired with the Euroball spectrometer. Apart from several dipole bands at medium excitation energy, three quadrupole bands have been observed at high spin. Linking transitions connecting two of the high-spin bands to low-energy states have been observed. Calculations based on the cranked-Nilsson-Strutinsky formalism have been used to assign configurations for the high-spin quadrupole bands. C1 [Bhowal, S.] Surendranath Evening Coll, Dept Phys, Kolkata 700009, India. [Gangopadhyay, G.] Univ Calcutta, Univ Coll Sci, Dept Phys, Kolkata 700009, India. [Petrache, C. M.] Univ Paris 11, Inst Phys Nucl, CNRS IN2P3, F-91406 Orsay, France. [Ragnarsson, I.] Lund Univ, LTH, Div Math Phys, SE-22100 Lund, Sweden. [Singh, A. K.] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India. [Bhattacharya, S.] Saha Inst Nucl Phys, Kolkata 700064, India. [Huebel, H.; Neusser-Neffgen, A.; Al-Khatib, A.; Bringel, P.; Buerger, A.; Nenoff, N.; Schoenwasser, G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany. [Hagemann, G. B.; Herskind, B.; Jensen, D. R.; Sletten, G.] Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Fallon, P.; Goergen, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Bednarczyk, P.; Curien, D.] Inst Rech Subatom, F-67037 Strasbourg, France. [Korichi, A.; Lopez-Martens, A.] Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France. [Rao, B. V. T.; Reddy, T. S.] Andhra Univ, Dept Nucl Phys, Visakhapatnam 530003, Andhra Pradesh, India. [Singh, Nirmal] Panjab Univ, Dept Phys, Chandigarh 160014, India. RP Bhowal, S (reprint author), Surendranath Evening Coll, Dept Phys, 24-2 MG Rd, Kolkata 700009, India. RI Petrache, Costel/E-9867-2012; CURIEN, Dominique/B-6718-2013; OI Petrache, Costel/0000-0001-8419-1390; Gorgen, Andreas/0000-0003-1916-9941; Gangopadhyay, Gautam/0000-0003-3839-0537 FU DST, India [SR/S2/HEP-09/2005]; Department of Physics, University of Calcutta; German BMBF [06 BN 109] FX This work was supported by the DST, India, under Project SR/S2/HEP-09/2005 and the UGC-DRS Programme of the Department of Physics, University of Calcutta, the German BMBF under Contract 06 BN 109. NR 29 TC 12 Z9 12 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD AUG 17 PY 2011 VL 84 IS 2 AR 024313 DI 10.1103/PhysRevC.84.024313 PG 12 WC Physics, Nuclear SC Physics GA 808JR UT WOS:000293974500001 ER PT J AU Ollier, J Simpson, J Riley, MA Paul, ES Wang, X Aguilar, A Carpenter, MP Darby, IG Hartley, DJ Janssens, RVF Kondev, FG Lauritsen, T Nolan, PJ Petri, M Rigby, SV Teal, C Thomson, J Unsworth, C Zhu, S AF Ollier, J. Simpson, J. Riley, M. A. Paul, E. S. Wang, X. Aguilar, A. Carpenter, M. P. Darby, I. G. Hartley, D. J. Janssens, R. V. F. Kondev, F. G. Lauritsen, T. Nolan, P. J. Petri, M. Rigby, S. V. Teal, C. Thomson, J. Unsworth, C. Zhu, S. TI High-spin yrast structure of Ho-159 SO PHYSICAL REVIEW C LA English DT Article ID RARE-EARTH NUCLEI; BAND-STRUCTURE; SPECTROSCOPY; SYSTEMATICS; ENERGIES; STATES; MODEL AB An investigation of the yrast structure of the odd-Z Ho-159 nucleus to high spin has been performed. The Ho-159 nucleus was populated by the reaction Cd-116(Ca-48, p4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were detected by the Gammasphere spectrometer. The h(11/2) yrast band has been significantly extended up to I-pi = 75/2(-)( tentatively 79/2(-)). A lower frequency limit for the second (h(11/2))(2) proton alignment was extracted consistent with the systematics of this alignment frequency, indicating an increased deformation with neutron number in the Ho isotopes. The energy-level splitting between the signature partners in the h11/2 structures of the Ho isotopes and the neighboring N = 92 isotones is discussed. C1 [Ollier, J.; Simpson, J.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England. [Riley, M. A.; Wang, X.; Aguilar, A.; Teal, C.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA. [Paul, E. S.; Nolan, P. J.; Petri, M.; Rigby, S. V.; Thomson, J.; Unsworth, C.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England. [Carpenter, M. P.; Janssens, R. V. F.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Darby, I. G.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Hartley, D. J.] USN Acad, Dept Phys, Annapolis, MD 21402 USA. [Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA. RP Ollier, J (reprint author), STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England. RI Carpenter, Michael/E-4287-2015; Petri, Marina/H-4630-2016 OI Carpenter, Michael/0000-0002-3237-5734; Petri, Marina/0000-0002-3740-6106 FU U.S. National Science Foundation [PHY-0756474, PHY-0554762]; U.S. Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357, DE-FG02-94ER40834, DE-FG02-96ER40983]; United Kingdom Science and Technology Facilities Council; State of Florida FX The authors acknowledge Paul Morrall for preparing the targets and the ATLAS operations staff for assistance. This work has been supported in part by the U.S. National Science Foundation under Grants No. PHY-0756474 (FSU) and No. PHY-0554762 (USNA); the U.S. Department of Energy, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357 (ANL), No. DE-FG02-94ER40834 (UMD), and No. DE-FG02-96ER40983(UTK); the United Kingdom Science and Technology Facilities Council; and by the State of Florida. NR 35 TC 1 Z9 1 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD AUG 17 PY 2011 VL 84 IS 2 AR 027302 DI 10.1103/PhysRevC.84.027302 PG 4 WC Physics, Nuclear SC Physics GA 808JR UT WOS:000293974500005 ER PT J AU Devetak, E Nomerotski, A Peskin, M AF Devetak, Erik Nomerotski, Andrei Peskin, Michael TI Top quark anomalous couplings at the International Linear Collider SO PHYSICAL REVIEW D LA English DT Article ID EXTENDED TECHNICOLOR; DECAYS; VERTEX AB We present a study of the experimental determination of the forward-backward asymmetry in the process e(+)e(-) -> t (t) over bar and in the subsequent t -> Wb decay, studied in the context of the International Linear Collider. This process probes the elementary couplings of the top quark to the photon, and the Z and the W bosons at a level of precision that is difficult to achieve at hadron colliders. Measurement of the forward-backward asymmetry requires excellent b quark identification and determination of the quark charge. The study reported here is performed in the most challenging all-hadronic channel e(+)e(-) -> b (b) over barq (q) over barq (q) over bar. It includes realistic details of the experimental environment, a full Monte Carlo simulation of the detector, based on the Silicon Detector concept, and realistic event reconstruction. The forward-backward asymmetries are determined to a precision of approximately 1% for each of the two choices of beam polarization. We analyze the implications for the determination of the t (t) over barZ and Wt (b) over bar couplings. C1 [Devetak, Erik; Nomerotski, Andrei] Univ Oxford, Oxford OX1 3RH, England. [Peskin, Michael] Stanford Univ, SLAC, Menlo Pk, CA 94025 USA. RP Devetak, E (reprint author), Univ Oxford, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England. RI Nomerotski, Andrei/A-5169-2010; OI Peskin, Michael/0000-0001-6403-6828 FU U.S. Department of Energy [DE-AC02-76SF00515] FX We would like to thank the colleagues from the SiD software and benchmarking groups, in particular, Jan Strube, Tim Barklow, Norman Graf, and John Jaros for assistance with sample processing and useful discussions. The work of M. P. is supported by the U.S. Department of Energy under Contract No. DE-AC02-76SF00515. NR 37 TC 14 Z9 14 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD AUG 17 PY 2011 VL 84 IS 3 AR 034029 DI 10.1103/PhysRevD.84.034029 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 808KA UT WOS:000293975400001 ER PT J AU Kile, J Soni, A AF Kile, Jennifer Soni, Amarjit TI Flavored dark matter in direct detection experiments and at the LHC SO PHYSICAL REVIEW D LA English DT Article ID PARTICLE PHYSICS; CANDIDATES; COLLIDER; BOSONS; SEARCH AB We consider the possibility that dark matter can communicate with the standard model fields via flavor interactions. We take the dark matter to belong to a "dark sector" which contains at least two types, or "flavors," of particles and then hypothesize that the standard model fields and dark matter share a common interaction which depends on flavor. As, generically, interaction eigenstates and mass eigenstates need not coincide, we consider both flavor-changing and flavor-conserving interactions. These interactions are then constrained by meson decays, kaon mixing, and current collider bounds, and we examine their relevance for direct detection and the LHC. C1 [Kile, Jennifer] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. [Soni, Amarjit] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Kile, J (reprint author), Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. EM jenkile@northwestern.edu; soni@bnl.gov FU U.S. DOE [DE-AC02-98CH10886, DE-FG02-91ER40684] FX The authors would like to thank H. Davoudiasl, H.-S. Lee, C. Lunardini, F. Paige, C. Sturm, and R. van de Water for helpful discussions and advice. This work is supported under U.S. DOE Contracts No. DE-AC02-98CH10886 (BNL) and No. DE-FG02-91ER40684 (Northwestern). NR 53 TC 32 Z9 32 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 17 PY 2011 VL 84 IS 3 AR 035016 DI 10.1103/PhysRevD.84.035016 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 808KA UT WOS:000293975400003 ER PT J AU Stancari, G Valishev, A Annala, G Kuznetsov, G Shiltsev, V Still, DA Vorobiev, LG AF Stancari, G. Valishev, A. Annala, G. Kuznetsov, G. Shiltsev, V. Still, D. A. Vorobiev, L. G. TI Collimation with Hollow Electron Beams SO PHYSICAL REVIEW LETTERS LA English DT Article AB A novel concept of controlled halo removal for intense high-energy beams in storage rings and colliders is presented. It is based on the interaction of the circulating beam with a 5-keV, magnetically confined, pulsed hollow electron beam in a 2-m-long section of the ring. The electrons enclose the circulating beam, kicking halo particles transversely and leaving the beam core unperturbed. By acting as a tunable diffusion enhancer and not as a hard aperture limitation, the hollow electron beam collimator extends conventional collimation systems beyond the intensity limits imposed by tolerable losses. The concept was tested experimentally at the Fermilab Tevatron proton-antiproton collider. The first results on the collimation of 980-GeV antiprotons are presented. C1 [Stancari, G.; Valishev, A.; Annala, G.; Kuznetsov, G.; Shiltsev, V.; Still, D. A.; Vorobiev, L. G.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Stancari, G (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM stancari@fnal.gov FU Fermi Research Alliance, LLC [DE-AC02-07CH11359]; U.S. LHC Accelerator Research Program (LARP); United States Department of Energy [DE-AC02-07CH11359] FX The authors would like to thank R. Assmann and the CERN LHC Collimation Group, A. Drozhdin, N. Mokhov, and R. Moore of Fermilab, and V. Kamerdzhiev (Forschungszentrum Julich, Germany) for discussions and insights; G. Saewert (Fermilab) for the design of the high-voltage modulator; M. Convery, C. Gattuso, and T. Johnson (Fermilab) for support during operation of the accelerator. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. This work was partially supported by the U.S. LHC Accelerator Research Program (LARP). NR 19 TC 27 Z9 27 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 17 PY 2011 VL 107 IS 8 AR 084802 DI 10.1103/PhysRevLett.107.084802 PG 5 WC Physics, Multidisciplinary SC Physics GA 808KQ UT WOS:000293977000010 PM 21929171 ER PT J AU Yao, H Lee, DH AF Yao, Hong Lee, Dung-Hai TI Fermionic Magnons, Non-Abelian Spinons, and the Spin Quantum Hall Effect from an Exactly Solvable Spin-1/2 Kitaev Model with SU(2) Symmetry SO PHYSICAL REVIEW LETTERS LA English DT Article ID EFFECTIVE-FIELD-THEORY; VALENCE-BOND STATE; SUPERCONDUCTIVITY; INSULATOR; LIQUIDS; PHYSICS; ANYONS; PHASE AB We introduce an exactly solvable SU(2)-invariant spin-1/2 model with exotic spin excitations. With time reversal symmetry (TRS), the ground state is a spin liquid with gapless or gapped spin-1 but fermionic excitations. When TRS is broken, the resulting spin liquid exhibits deconfined vortex excitations which carry spin-1/2 and obey non-Abelian statistics. We show that this SU(2) invariant non-Abelian spin liquid exhibits the spin quantum Hall effect with quantized spin Hall conductivity sigma(s)(xy) = h/2 pi, and that the spin response is effectively described by the SO(3) level-1 Chern-Simons theory at low energy. We further propose that a SU(2) level-2 Chern-Simons theory is the effective field theory describing the topological structure of the non-Abelian SU(2) invariant spin liquid. C1 [Yao, Hong] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Yao, H (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. RI Yao, Hong/D-3202-2011 OI Yao, Hong/0000-0003-2867-6144 FU DOE [DE-AC02-05CH11231] FX We sincerely thank Joseph Maciejko, Xiao-Liang Qi, Shinsei Ryu, Ashvin Vishwanath, Zheng-Yu Weng, Shou-Cheng Zhang, and especially Steve Kivelson for helpful discussions. This work is partly supported by DOE Grant No. DE-AC02-05CH11231. NR 29 TC 14 Z9 14 U1 1 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 17 PY 2011 VL 107 IS 8 AR 087205 DI 10.1103/PhysRevLett.107.087205 PG 5 WC Physics, Multidisciplinary SC Physics GA 808KQ UT WOS:000293977000016 PM 21929203 ER PT J AU Wang, L Cai, Y Raubenheimer, TO Fukuma, H AF Wang, L. Cai, Y. Raubenheimer, T. O. Fukuma, H. TI Suppression of beam-ion instability in electron rings with multibunch train beam fillings SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID STORAGE-RINGS AB The ion-caused beam instability in the future light sources and electron damping rings can be serious due to the high beam current and ultrasmall emittance of picometer level. One simple and effective mitigation of the instability is a multibunch train beam filling pattern which can significantly reduce the ion density near the beam, and therefore reduce the instability growth rate up to 2 orders of magnitude. The suppression is more effective for high intensity beams with low emittance. The distribution and the electric field of trapped ions are benchmarked to validate the model used in the paper. The wakefield of ion cloud and the beam-ion instability is investigated both analytically and numerically. We derived a simple formula for the buildup of ion cloud and instability growth rate with the multibunch train filling pattern. The simulation in NSLSII, PEPX, SuperKEKB, and the observation in SPEAR3 are used to compare with our analyses. The analyses agree well with simulations and observations. C1 [Wang, L.; Cai, Y.; Raubenheimer, T. O.] SLAC, Menlo Pk, CA 94025 USA. [Fukuma, H.] KEK, Tsukuba, Ibaraki 3050801, Japan. RP Wang, L (reprint author), SLAC, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. NR 33 TC 3 Z9 3 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD AUG 17 PY 2011 VL 14 IS 8 AR 084401 DI 10.1103/PhysRevSTAB.14.084401 PG 20 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 808KX UT WOS:000293977700001 ER PT J AU Schleicher, RL Encisco, SE Chaudhary-Webb, M Paliakov, E McCoy, LF Pfeiffer, CM AF Schleicher, Rosemary L. Encisco, Sara E. Chaudhary-Webb, Madhulika Paliakov, Ekaterina McCoy, Leslie F. Pfeiffer, Christine M. TI Isotope dilution ultra performance liquid chromatography-tandem mass spectrometry method for simultaneous measurement of 25-hydroxyvitamin D2, 25-hydroxyvitamin D3 and 3-epi-25-hydroxyvitamin D3 in human serum SO CLINICA CHIMICA ACTA LA English DT Article DE 25-hydroxyvitamin D; UHPLC; LC-MS/MS; Vitamin D; Mass spectrometry ID VITAMIN-D METABOLITES; D-3; SYSTEM AB Background: An ultra performance liquid chromatography-tandem mass spectrometry method with calibration traceable to NIST SRM was developed and validated to measure concentrations of 25-hydroxyvitamin D-2 (25OHD(2)), 25-hydroxyvitamin D-3 (25OHD(3)) and the C-3 epimer of 25OHD3 (epi-25OHD(3)) in human serum. Methods: Tri- and hexa-deuterated internal standards were added to serum (100 mu l) to monitor recovery. Liquid-liquid extraction was used to extract the hexane-soluble materials. Calibration solutions ([8-100 nmol/L 25OHD(2), 12-150 nmol/L 25OHD(3), and 4-50 nmol/L epi-25OHD(3)] prepared in phosphate-buffered saline containing 4% albumin were similarly processed. Using a pentafluorophenyl column (2.1 x 100 mm) and isocratic methanol/water (72/28, v/v) flowing at 0.4 ml/min, run time was 14 min per sample; 25OHD(3) and epi-25OHD(3) were baseline separated. Atmospheric pressure chemical ionization in the positive ion mode with selected reaction monitoring captured the following transitions: 25OHD(2), m/z 3953>377.3 (209.1 qualifier); (epi-)25OHD(3), m/z 383.3>365.3 (105.1 qualifier); d(3)-25OHD(2), m/z 398.3>380.3; and d(6)-25OHD(3), m/z 389.3>371.3. Results: Recovery averaged >= 98%. Total imprecision was <= 10% when concentrations were >= 20 nmol/l. Bias averaged <5%. Detection limits were <5 nmol/l. Median (nmol/l) 250HD(2), 25OHD(3) and epi-25OHD(3) were quantitated in 98 blood donors ( and <1 1 2> directions. In some regions, the (0 0 1) poles of the CZT matrix aligned with the growth direction, while twins aligned such that (1 1 1) and (1 1 2) poles aligned with the growth direction. In some other areas, (1 1 2) or (0 1 1) poles of the CZT matrix aligned with the growth direction. New relationships between the CZT matrix and large Te polycrystalline particles were revealed: (1 1 (2) over bar)(CZT)parallel to(1 (1) over bar 0 0)(re) and (0 0 1)(CZT)parallel to{0 (1) over bar (1) over bar 1}(Te). (C) 2011 Published by Elsevier B.V. C1 [Sundaram, S. K.; Henager, C. H., Jr.; Edwards, D. J.; Schemer-Kohrn, A. L.; Bliss, M.; Riley, B. R.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Sundaram, SK (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM sk.sundaram@pnl.gov RI Bliss, Mary/G-2240-2012; OI Bliss, Mary/0000-0002-7565-4813; Henager, Chuck/0000-0002-8600-6803 FU U.S. Department of Energy [DE-AC06-76RLO 1830, DE-AC05-00OR-22725]; Office of Defense Nuclear Nonproliferation; Office of Nonproliferation Research and Development [NA-22] FX PNNL is operated for the U.S. Department of Energy by Battelle Memorial Institute under Contract DE-AC06-76RLO 1830. The Office of Defense Nuclear Nonproliferation, Office of Nonproliferation Research and Development (NA-22), U.S. Department of Energy funded this work at PNNL under contract DE-AC05-00OR-22725 with UT-Battelle, LLC. NR 28 TC 2 Z9 2 U1 2 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD AUG 15 PY 2011 VL 329 IS 1 BP 12 EP 19 DI 10.1016/j.jcrysgro.2011.02.008 PG 8 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA 810DB UT WOS:000294104500003 ER PT J AU Kane, J Karthik, C Butt, DP Windes, WE Ubic, R AF Kane, J. Karthik, C. Butt, D. P. Windes, W. E. Ubic, R. TI Microstructural characterization and pore structure analysis of nuclear graphite SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID X-RAY TOMOGRAPHY; IRRADIATION CREEP; REACTOR GRAPHITE; MODEL AB Graphite will be used as a structural and moderator material in next-generation nuclear reactors. While the overall nature of the production of nuclear graphite is well understood, the historic nuclear grades of graphite are no longer available. This paper reports the virgin microstructural characteristics of filler particles and macro-scale porosity in virgin nuclear graphite grades of interest to the Next Generation Nuclear Plant program. Optical microscopy was used to characterize filler particle size and shape as well as the arrangement of shrinkage cracks. Computer aided image analysis was applied to optical images to quantitatively determine the variation of pore structure, area, eccentricity, and orientation within and between grades. The overall porosity ranged between similar to 14% and 21%. A few large pores constitute the majority of the overall porosity. The distribution of pore area in all grades was roughly logarithmic in nature. The average pore was best fit by an ellipse with aspect ratio of similar to 2. An estimated 0.6-0.9% of observed porosity was attributed to shrinkage cracks in the filler particles. Finally, a preferred orientation of the porosity was observed in all grades. (C) 2011 Elsevier B.V. All rights reserved. C1 [Kane, J.; Karthik, C.; Butt, D. P.; Ubic, R.] Boise State Univ, Dept Mat Sci & Engn, Boise, ID 83725 USA. [Kane, J.; Karthik, C.; Butt, D. P.; Windes, W. E.; Ubic, R.] Ctr Adv Energy Studies, Idaho Falls, ID 83415 USA. [Windes, W. E.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Kane, J (reprint author), Boise State Univ, Dept Mat Sci & Engn, 1910 Univ Dr, Boise, ID 83725 USA. EM joshuakane@u.boisestate.edu RI Butt, Darryl/B-7480-2008; Chinnathambi, Karthik/A-6128-2010 OI Butt, Darryl/0000-0003-4501-8864; FU Department of Energy [National Nuclear Security Administration] [00041394/00026, DE-NE0000140]; Nuclear Regulator Commission [NRC-38-955] FX This material is based upon work supported by the Department of Energy [National Nuclear Security Administration] under Award Nos. 00041394/00026 and DE-NE0000140. Furthermore. J. Kane acknowledges the funding of the Nuclear Regulator Commission Under the Nuclear Materials Fellowship Program (NRC-38-955) NR 21 TC 24 Z9 26 U1 2 U2 27 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 15 PY 2011 VL 415 IS 2 BP 189 EP 197 DI 10.1016/j.jnucmat.2011.05.053 PG 9 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 811TT UT WOS:000294239700006 ER PT J AU Ahrenkiel, SP Mahan, AH Ginley, DS Xu, Y AF Ahrenkiel, S. P. Mahan, A. H. Ginley, D. S. Xu, Y. TI Solid-phase crystallization kinetics and grain structure during thermal annealing of a-Si:H grown by chemical vapor deposition SO MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS LA English DT Article DE Hydrogenated amorphous silicon; Annealing; Crystallization kinetics; Nucleation; Transmission electron microscopy ID AMORPHOUS-SILICON; POLYCRYSTALLINE SILICON; FILMS; TEMPERATURE; PARAMETERS; GOLD AB Solid-phase crystallization kinetics are examined during thermal annealing of as-deposited hydrogenated amorphous silicon (a-Si:H) thin films deposited by hot-wire chemical vapor deposition (HWCVD) and plasma-enhanced chemical vapor deposition (PECVD). The influence of deposition temperature of HWCVD material on crystallization is also considered. Real-time observation of the crystallization process using in situ transmission electron microscope heating allowed tracking of the crystalline volume fraction and grain number density by image-processing methods. Beyond an initial incubation period, roughly constant grain nucleation rate and growth velocity are observed. Extrapolation from early stages of crystallization allows estimation of the final average grain sizes. PECVD material shows a much lower nucleation rate than does HWCVD material under the same annealing conditions, whereas the grain growth velocities are comparable, leading to dramatically larger grain sizes in PECVD material. X-ray diffraction line widths from PECVD material are broader compared to HWCVD material. The diffraction line broadening is primarily determined by intragranular defect structure, rather than grain size. Low-temperature preannealing reduced the final XRD line widths of HWCVD material, indicating an influence on defect structure or density. Lattice contraction during crystallization of HWCVD material is observed to be independent of the initial hydrogen content. (C) 2011 Elsevier B.V. All rights reserved. C1 [Ahrenkiel, S. P.] S Dakota Sch Mines & Technol, Nanosci & Nanoengn Dept, Rapid City, SD 57701 USA. [Mahan, A. H.; Ginley, D. S.; Xu, Y.] Natl Ctr Photovolta, Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Ahrenkiel, SP (reprint author), S Dakota Sch Mines & Technol, Nanosci & Nanoengn Dept, 501 E St Joseph St, Rapid City, SD 57701 USA. EM Phil.Ahrenkiel@sdsmt.edu FU United States D.O.E. [DE-AC36-99-G010337] FX We wish to thank David Young (NREL) for valuable consultation. This work was funded by the United States D.O.E. under subcontract number DE-AC36-99-G010337. NR 19 TC 6 Z9 6 U1 2 U2 19 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-5107 J9 MATER SCI ENG B-ADV JI Mater. Sci. Eng. B-Adv. Funct. Solid-State Mater. PD AUG 15 PY 2011 VL 176 IS 13 BP 972 EP 977 DI 10.1016/j.mseb.2011.05.025 PG 6 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA 808PO UT WOS:000293991100003 ER PT J AU Chowdhury, DR Singh, R Reiten, M Chen, HT Taylor, AJ O'Hara, JF Azad, AK AF Chowdhury, Dibakar Roy Singh, Ranjan Reiten, Matthew Chen, Hou-Tong Taylor, Antoinette J. O'Hara, John F. Azad, Abul K. TI A broadband planar terahertz metamaterial with nested structure SO OPTICS EXPRESS LA English DT Article ID SPLIT-RING RESONATORS; MAGNETISM AB We demonstrate the broadening of fundamental resonance in tera-hertz metamaterial by successive insertion of metal rings in the original unit cell of a split ring resonator (SRR) forming an inter connected nested structure. With the subsequent addition of each inner ring, the fundamental resonance mode shows gradual broadening and blue shift. For a total of four rings in the structure the resonance linewidth is enhanced by a factor of four and the blue shift is as large as 316 GHz. The dramatic increase in fundamental resonance broadening and its blue shifting is attributed to the decrease in the effective inductance of the entire SRR structure with addition of each smaller ring. We also observe that while the fundamental resonance is well preserved, the dipolar mode resonance undergoes multiple splittings with the addition of each ring in the nest. Such planar metamaterials, possessing broadband resonant response in the fundamental mode of operation, could have potential applications for extending the properties of metamaterials over a broader frequency range of operations. (C) 2011 Optical Society of America C1 [Chowdhury, Dibakar Roy; Singh, Ranjan; Reiten, Matthew; Chen, Hou-Tong; Taylor, Antoinette J.; O'Hara, John F.; Azad, Abul K.] Los Alamos Natl Lab, MPA CINT, Los Alamos, NM 87545 USA. RP Chowdhury, DR (reprint author), Los Alamos Natl Lab, MPA CINT, POB 1663,MS K771, Los Alamos, NM 87545 USA. EM dibakar@lanl.gov RI Singh, Ranjan/B-4091-2010; Chen, Hou-Tong/C-6860-2009; OI Singh, Ranjan/0000-0001-8068-7428; Chen, Hou-Tong/0000-0003-2014-7571; Azad, Abul/0000-0002-7784-7432 FU U.S. Department of Energy FX We gratefully acknowledge the support of the U.S. Department of Energy through the LANL/LDRD Program for this work. We gratefully acknowledge the cleanroom facilities of Center for Integrated NanoTechnologies (CINT) located at Sandia National Laboratory for the fabrication of the metamaterial samples. NR 24 TC 31 Z9 32 U1 3 U2 33 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD AUG 15 PY 2011 VL 19 IS 17 BP 15817 EP 15823 DI 10.1364/OE.19.015817 PG 7 WC Optics SC Optics GA 807KB UT WOS:000293894900018 PM 21934944 ER PT J AU Yoon, CH Schwander, P Abergel, C Andersson, I Andreasson, J Aquila, A Bajt, S Barthelmess, M Barty, A Bogan, MJ Bostedt, C Bozek, J Chapman, HN Claverie, JM Coppola, N DePonte, DP Ekeberg, T Epp, SW Erk, B Fleckenstein, H Foucar, L Graafsma, H Gumprecht, L Hajdu, J Hampton, CY Hartmann, A Hartmann, E Hartmann, R Hauser, G Hirsemann, H Holl, P Kassemeyer, S Kimmel, N Kiskinova, M Liang, M Loh, NTD Lomb, L Maia, FRNC Martin, AV Nass, K Pedersoli, E Reich, C Rolles, D Rudek, B Rudenko, A Schlichting, I Schulz, J Seibert, M Seltzer, V Shoeman, RL Sierra, RG Soltau, H Starodub, D Steinbrener, J Stier, G Struder, L Svenda, M Ullrich, J Weidenspointner, G White, TA Wunderer, C Ourmazd, A AF Yoon, Chun Hong Schwander, Peter Abergel, Chantal Andersson, Inger Andreasson, Jakob Aquila, Andrew Bajt, Sasa Barthelmess, Miriam Barty, Anton Bogan, Michael J. Bostedt, Christoph Bozek, John Chapman, Henry N. Claverie, Jean-Michel Coppola, Nicola DePonte, Daniel P. Ekeberg, Tomas Epp, Sascha W. Erk, Benjamin Fleckenstein, Holger Foucar, Lutz Graafsma, Heinz Gumprecht, Lars Hajdu, Janos Hampton, Christina Y. Hartmann, Andreas Hartmann, Elisabeth Hartmann, Robert Hauser, Gunter Hirsemann, Helmut Holl, Peter Kassemeyer, Stephan Kimmel, Nils Kiskinova, Maya Liang, Mengning Loh, Ne-Te Duane Lomb, Lukas Maia, Filipe R. N. C. Martin, Andrew V. Nass, Karol Pedersoli, Emanuele Reich, Christian Rolles, Daniel Rudek, Benedikt Rudenko, Artem Schlichting, Ilme Schulz, Joachim Seibert, Marvin Seltzer, Virginie Shoeman, Robert L. Sierra, Raymond G. Soltau, Heike Starodub, Dmitri Steinbrener, Jan Stier, Gunter Strueder, Lothar Svenda, Martin Ullrich, Joachim Weidenspointner, Georg White, Thomas A. Wunderer, Cornelia Ourmazd, Abbas TI Unsupervised classification of single-particle X-ray diffraction snapshots by spectral clustering SO OPTICS EXPRESS LA English DT Article ID LASER AB Single-particle experiments using X-ray Free Electron Lasers produce more than 10(5) snapshots per hour, consisting of an admixture of blank shots (no particle intercepted), and exposures of one or more particles. Experimental data sets also often contain unintentional contamination with different species. We present an unsupervised method able to sort experimental snapshots without recourse to templates, specific noise models, or user-directed learning. The results show 90% agreement with manual classification. (C) 2011 Optical Society of America C1 [Yoon, Chun Hong; Schwander, Peter; Ourmazd, Abbas] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA. [Abergel, Chantal; Claverie, Jean-Michel; Seltzer, Virginie] Aix Marseille Univ, CNRS, UPR2589, Inst Microbiol Mediterranee, F-13288 Marseille 9, France. [Andersson, Inger; Ekeberg, Tomas; Hajdu, Janos; Seibert, Marvin; Svenda, Martin] Swedish Univ Agr Sci, Uppsala Biomed Ctr, Dept Mol Biol, S-75124 Uppsala, Sweden. [Andreasson, Jakob] Uppsala Univ, Dept Cell & Mol Biol, Lab Mol Biophys, SE-75124 Uppsala, Sweden. [Aquila, Andrew; Bajt, Sasa; Barthelmess, Miriam; Graafsma, Heinz; Hirsemann, Helmut; Wunderer, Cornelia] DESY, D-22607 Hamburg, Germany. [Barty, Anton; Chapman, Henry N.; DePonte, Daniel P.; Fleckenstein, Holger; Gumprecht, Lars; Liang, Mengning; Martin, Andrew V.; Nass, Karol; Schulz, Joachim; White, Thomas A.] Univ Hamburg, Ctr Free Elect Laser Sci, DESY, D-22607 Hamburg, Germany. [Bogan, Michael J.; Hampton, Christina Y.; Loh, Ne-Te Duane; Sierra, Raymond G.; Starodub, Dmitri] SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA. [Bostedt, Christoph; Bozek, John] SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA. [Chapman, Henry N.] Univ Hamburg, D-22761 Hamburg, Germany. [Coppola, Nicola] European XFEL GmbH, D-22761 Hamburg, Germany. [Epp, Sascha W.; Erk, Benjamin; Foucar, Lutz; Kassemeyer, Stephan; Lomb, Lukas; Rolles, Daniel; Rudek, Benedikt; Rudenko, Artem; Schlichting, Ilme; Shoeman, Robert L.; Steinbrener, Jan; Ullrich, Joachim] Ctr Free Electron Laser Sci, Max Planck Adv Study Grp, D-22607 Hamburg, Germany. [Epp, Sascha W.; Erk, Benjamin; Rudek, Benedikt; Rudenko, Artem; Ullrich, Joachim] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany. [Foucar, Lutz; Hartmann, Elisabeth; Kassemeyer, Stephan; Lomb, Lukas; Rolles, Daniel; Schlichting, Ilme; Shoeman, Robert L.; Steinbrener, Jan; Stier, Gunter] Max Planck Inst Med Res, D-69120 Heidelberg, Germany. [Hartmann, Andreas; Hartmann, Robert; Holl, Peter; Reich, Christian; Soltau, Heike] PNSensor GmbH, D-80803 Munich, Germany. [Hauser, Gunter; Kimmel, Nils; Strueder, Lothar; Weidenspointner, Georg] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany. [Hauser, Gunter; Kimmel, Nils; Strueder, Lothar; Weidenspointner, Georg] Max Planck Inst Halbleiterlab, D-81739 Munich, Germany. [Kiskinova, Maya; Pedersoli, Emanuele] Elettra Sincrotrone Trieste, Fermi, I-34149 Trieste, Italy. [Maia, Filipe R. N. C.] Univ Calif Berkeley, Lawrence Berkeley Lab, NERSC, Berkeley, CA 94720 USA. RP Yoon, CH (reprint author), Univ Wisconsin, Dept Phys, 1900 E Kenwood Blvd, Milwaukee, WI 53211 USA. EM ourmazd@uwm.edu RI Bogan, Mike/I-6962-2012; Chapman, Henry/G-2153-2010; Bajt, Sasa/G-2228-2010; Rocha Neves Couto Maia, Filipe/C-3146-2014; Bozek, John/E-9260-2010; Barty, Anton/K-5137-2014; Loh, Duane/I-7371-2013; Schlichting, Ilme/I-1339-2013; Rudek, Benedikt/A-5100-2017; Nass, Karol/K-1970-2012; Rudenko, Artem/C-7412-2009 OI Claverie, jean-michel/0000-0003-1424-0315; Bogan, Mike/0000-0001-9318-3333; Abergel, Chantal/0000-0003-1875-4049; graafsma, heinz/0000-0003-2304-667X; MARTIN, ANDREW/0000-0003-3704-1829; Pedersoli, Emanuele/0000-0003-0572-6735; Chapman, Henry/0000-0002-4655-1743; Rocha Neves Couto Maia, Filipe/0000-0002-2141-438X; Bozek, John/0000-0001-7486-7238; Barty, Anton/0000-0003-4751-2727; Loh, Duane/0000-0002-8886-510X; Rudenko, Artem/0000-0002-9154-8463 FU U.S. Department of Energy Office of Science [DE-SC0002164]; PULSE Institute at the SLAC National Accelerator Laboratory; Max Planck Society; Swedish Research Councils; Stiftelsen Olle Engkvist Byggmastare; Swedish University of Agricultural Sciences; Helmholtz Association [VH-VI-302]; DFG Cluster of Excellence at the Munich Centre for Advanced Photonics; Centre National de la Recherche Scientifique; Agence Nationale de la Recherche [ANR-BLAN08-0089] FX We are grateful to D. Giannakis, R. Fung and F. L. Wang for discussions, and acknowledge support from: the U.S. Department of Energy Office of Science (SC-22, BES) awards #DE-SC0002164 and #DE-SC0002164, and through the PULSE Institute at the SLAC National Accelerator Laboratory; the Max Planck Society for funding the development and operation of the CAMP instrument within the ASG at CFEL; the Hamburg Ministry of Science and Research and Joachim Herz Stiftung as part of the Hamburg Initiative for Excellence in Research (LEXI); and the Hamburg School for Structure and Dynamics in Infection. This work was also supported by the following agencies: the Swedish Research Councils; Stiftelsen Olle Engkvist Byggmastare; the Swedish University of Agricultural Sciences; the Helmholtz Association (VH-VI-302); the DFG Cluster of Excellence at the Munich Centre for Advanced Photonics; the Centre National de la Recherche Scientifique; Agence Nationale de la Recherche (ANR-BLAN08-0089). Portions of this research were carried out at the Linac Coherent Light Source, a National User Facility operated by Stanford University on behalf of the US Department of Energy, Office of Basic Energy Sciences. NR 21 TC 29 Z9 30 U1 2 U2 23 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD AUG 15 PY 2011 VL 19 IS 17 BP 16542 EP 16549 DI 10.1364/OE.19.016542 PG 8 WC Optics SC Optics GA 807KB UT WOS:000293894900092 PM 21935018 ER PT J AU Zhang, P Wang, S Liu, YM Yin, XB Lu, CG Chen, ZG Zhang, X AF Zhang, Peng Wang, Sheng Liu, Yongmin Yin, Xiaobo Lu, Changgui Chen, Zhigang Zhang, Xiang TI Plasmonic Airy beams with dynamically controlled trajectories SO OPTICS LETTERS LA English DT Article ID WAVE-PACKETS; OPTICS AB We report the experimental generation and dynamic trajectory control of plasmonic Airy beams (PABs). The PABs are created by directly coupling free-space Airy beams to surface plasmon polaritons through a grating coupler on a metal surface. We show that the ballistic motion of the PABs can be reconfigured in real time by either a computer addressed spatial light modulator or mechanical means. (C) 2011 Optical Society of America C1 [Zhang, Peng; Wang, Sheng; Liu, Yongmin; Yin, Xiaobo; Lu, Changgui; Zhang, Xiang] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA. [Zhang, Peng; Chen, Zhigang] San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA. [Yin, Xiaobo; Zhang, Xiang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Zhang, X (reprint author), Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, 3112 Etcheverry Hall, Berkeley, CA 94720 USA. EM xiang@berkeley.edu RI Zhang, Peng/D-9624-2011; Yin, Xiaobo/A-4142-2011; Zhang, Xiang/F-6905-2011; Chen, Zhigang/B-2112-2010; Liu, Yongmin/F-5322-2010; Wang, Sheng/F-4095-2012 FU United States Army Research Office (USARO) MURI [W911NF-09-1-0539]; United States Air Force Office of Scientific Research (USAFOSR) [FA9550-09-1-0474]; National Science Foundation (NSF) Nanoscale Science and Engineering Center [CMMI-0751621]; NSF [PHY-0800972] FX This work was supported by the United States Army Research Office (USARO) MURI program (W911NF-09-1-0539), the United States Air Force Office of Scientific Research (USAFOSR) (FA9550-09-1-0474), the National Science Foundation (NSF) Nanoscale Science and Engineering Center (CMMI-0751621), and the NSF (PHY-0800972). We thank T. Zentgraf, Y. Park, B. Kante, Z. Ye, and Y. Hu for assistance and discussion. NR 19 TC 116 Z9 120 U1 2 U2 26 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD AUG 15 PY 2011 VL 36 IS 16 BP 3191 EP 3193 PG 3 WC Optics SC Optics GA 807IT UT WOS:000293890800060 PM 21847204 ER PT J AU Tetard, L Passian, A Farahi, RH Davison, BH Thundat, T AF Tetard, L. Passian, A. Farahi, R. H. Davison, B. H. Thundat, T. TI Optomechanical spectroscopy with broadband interferometric and quantum cascade laser sources SO OPTICS LETTERS LA English DT Article ID NEGATIVE REFRACTIVE-INDEX; MICROCANTILEVERS; METAMATERIAL; FREQUENCIES; DISPERSION; FILMS AB The spectral tunability of semiconductor-metal multilayer structures can provide a channel for the conversion of light into useful mechanical actuation. Responses of suspended silicon, silicon nitride, chromium, gold, and aluminum microstructures are shown to be utilized as a detector for visible and IR spectroscopy. Both dispersive and interferometric approaches are investigated to delineate the potential use of the structures in spatially resolved spectroscopy and spectrally resolved microscopy. The thermoplasmonic, spectral absorption, interference effects, and the associated energy deposition that contributes to the mechanical response are discussed to describe the potential of optomechanical detection in future integrated spectrometers. (C) 2011 Optical Society of America C1 [Tetard, L.; Passian, A.; Farahi, R. H.; Davison, B. H.; Thundat, T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Passian, A.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. RP Passian, A (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM passianan@ornl.gov RI Davison, Brian/D-7617-2013 OI Davison, Brian/0000-0002-7408-3609 FU Oak Ridge National Laboratory (ORNL) BioEnergy Science Center (BESC); laboratory directed research and development (LDRD); Office of Biological and Environmental Research in the DOE Office of Science; U.S. DOE [DE-AC05-00OR22725] FX This research was sponsored in part by the Oak Ridge National Laboratory (ORNL) BioEnergy Science Center (BESC) and laboratory directed research and development (LDRD) fund. BESC is a U.S. Department of Energy (DOE) Bioenergy Research Center supported by the Office of Biological and Environmental Research in the DOE Office of Science. ORNL is managed by UT-Battelle, LLC, for the U.S. DOE under contract DE-AC05-00OR22725. NR 22 TC 9 Z9 9 U1 0 U2 15 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD AUG 15 PY 2011 VL 36 IS 16 BP 3251 EP 3253 PG 3 WC Optics SC Optics GA 807IT UT WOS:000293890800080 PM 21847224 ER PT J AU Klimczuk, T Wang, CH Lawrence, JM Xu, Q Durakiewicz, T Ronning, F Llobet, A Trouw, F Kurita, N Tokiwa, Y Lee, HO Booth, CH Gardner, JS Bauer, ED Joyce, JJ Zandbergen, HW Movshovich, R Cava, RJ Thompson, JD AF Klimczuk, T. Wang, C. H. Lawrence, J. M. Xu, Q. Durakiewicz, T. Ronning, F. Llobet, A. Trouw, F. Kurita, N. Tokiwa, Y. Lee, Han-oh Booth, C. H. Gardner, J. S. Bauer, E. D. Joyce, J. J. Zandbergen, H. W. Movshovich, R. Cava, R. J. Thompson, J. D. TI Crystal fields, disorder, and antiferromagnetic short-range order in Yb0.24Sn0.76Ru SO PHYSICAL REVIEW B LA English DT Article ID QUANTUM CRITICAL-POINT; SUPERCONDUCTIVITY; SYSTEM AB We report extensive measurements on a new compound (Yb0.24Sn0.76) Ru that crystallizes in the cubic CsCl structure. Valence-band photoemission (PES) and L-3 x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic neutron scattering (INS) indicates that the eight-fold degenerate J-multiplet of Yb3+ is split by the crystalline electric field (CEF) into a Gamma(7)-doublet ground state and a Gamma(8) quartet at an excitation energy 20 meV. The magnetic susceptibility can be fit very well by this CEF scheme under the assumption that a Gamma(6)-excited state resides at 32 meV; however, the Gamma(8)/Gamma(6) transition expected at 12 meV was not observed in the INS. The resistivity follows a Bloch-Gruneisen law shunted by a parallel resistor, as is typical of systems subject to phonon scattering with no apparent magnetic scattering. All of these properties can be understood as representing simple local moment behavior of the trivalent Yb ion. At 1 K there is a peak in specific heat that is too broad to represent a magnetic-phase transition, consistent with absence of magnetic reflections in neutron diffraction. On the other hand this peak also is too narrow to represent the Kondo effect in the Gamma(7)-doublet ground state. On the basis of the field dependence of the specific heat, we argue that antiferromagnetic (AF) short-range order (SRO) (possibly coexisting with Kondo physics) occurs at low temperatures. The long-range magnetic order is suppressed because the Yb site occupancy is below the percolation threshold for this disordered compound. C1 [Klimczuk, T.; Durakiewicz, T.; Ronning, F.; Llobet, A.; Trouw, F.; Kurita, N.; Tokiwa, Y.; Lee, Han-oh; Bauer, E. D.; Joyce, J. J.; Movshovich, R.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Klimczuk, T.] European Commiss, JRC, Inst Transuranium Elements, D-76125 Karlsruhe, Germany. [Wang, C. H.; Lawrence, J. M.] Univ Calif Irvine, Irvine, CA 92697 USA. [Wang, C. H.; Zandbergen, H. W.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Xu, Q.] Delft Inst Technol, Dept Nanosci, Natl Ctr HREM, NL-2628 CJ Delft, Netherlands. [Xu, Q.] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium. [Booth, C. H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Gardner, J. S.] Natl Inst Biol Stand & Controls, NCNR, Gaithersburg, MD 20899 USA. [Gardner, J. S.] Indiana Univ, Bloomington, IN 47408 USA. [Cava, R. J.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. RP Klimczuk, T (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM tomasz.klimczuk@ec.europa.eu RI Sanders, Susan/G-1957-2011; Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012; Gardner, Jason/A-1532-2013; Booth, Corwin/A-7877-2008; Klimczuk, Tomasz/M-1716-2013; Tokiwa, Yoshifumi/P-6593-2015; OI Klimczuk, Tomasz/0000-0003-2602-5049; Tokiwa, Yoshifumi/0000-0002-6294-7879; Durakiewicz, Tomasz/0000-0002-1980-1874; Ronning, Filip/0000-0002-2679-7957; Bauer, Eric/0000-0003-0017-1937 FU US Department of Energy (DOE) [DE-FG02-03ER46036]; US DOE, Office of Basic Energy Sciences, Division of Materials Science and Engineering; Oak Ridge National Laboratory; Office of Science, OBES, of the US DOE [DE-AC02-05CH11231]; National Science Foundation [DMR-0537588]; DOE Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396]; European Union [026019 ESTEEM] FX Work by the U C Irvine group was supported by the US Department of Energy (DOE) under Grant No. DE-FG02-03ER46036. Work at Los Alamos was performed under the auspices of the US DOE, Office of Basic Energy Sciences, Division of Materials Science and Engineering. Work at ORNL was sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the US DOE. Work at LBNL was supported by the Director, Office of Science, OBES, of the US DOE under Contract No. DE-AC02-05CH11231. This work is based in part upon research conducted at the SRC, University of Wisconsin-Madison, which is supported by the National Science Foundation under Award No. DMR-0537588. This work has benefited from the use of HIPD at the Lujan Center at the LANSCE, funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. We acknowledge the support of the National Institute of Standards and Technology, US Department of Commerce, in providing the neutron research facilities used in this work. The authors acknowledge financial support from the European Union under the Framework 6 program under a contract for an Integrated Infrastructure Initiative; reference 026019 ESTEEM. NR 28 TC 2 Z9 2 U1 3 U2 23 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 15 PY 2011 VL 84 IS 7 AR 075152 DI 10.1103/PhysRevB.84.075152 PG 8 WC Physics, Condensed Matter SC Physics GA 806SG UT WOS:000293830800003 ER PT J AU Lei, HC Petrovic, C AF Lei, Hechang Petrovic, C. TI Critical current density and mechanism of vortex pinning in KxFe2-ySe2 doped with S SO PHYSICAL REVIEW B LA English DT Article ID SURFACE-BARRIER; SUPERCONDUCTIVITY AB We report the critical current density J(c) in KxFe2-ySe2-zSz crystals. The Jc can be enhanced significantly with optimal S doping (z = 0.99). For K0.70(7)Fe1.55(7)Se1.01(2)S0.99(2), the weak fishtail effect is found for H parallel to c. The normalized vortex pinning forces follow the scaling law with a maximum position at 0.41 of the reduced magnetic field. These results demonstrate that the small size normal point defects dominate the vortex pinning mechanism. C1 [Lei, Hechang; Petrovic, C.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Lei, HC (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RI Petrovic, Cedomir/A-8789-2009; LEI, Hechang/H-3278-2016 OI Petrovic, Cedomir/0000-0001-6063-1881; FU US DOE [DE-AC02-98CH10886]; U.S. DOE, Office for Basic Energy Science FX We thank John Warren for help with SEM measurements. Work at Brookhaven is supported by the US DOE under Contract No. DE-AC02-98CH10886 and in part by the Center for Emergent Superconductivity, an Energy Frontier Research Center funded by the U.S. DOE, Office for Basic Energy Science. NR 23 TC 9 Z9 9 U1 2 U2 18 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 15 PY 2011 VL 84 IS 5 AR 052507 DI 10.1103/PhysRevB.84.052507 PG 4 WC Physics, Condensed Matter SC Physics GA 806RZ UT WOS:000293829800001 ER PT J AU Moyer, JA Vaz, CAF Arena, DA Kumah, D Negusse, E Henrich, VE AF Moyer, J. A. Vaz, C. A. F. Arena, D. A. Kumah, D. Negusse, E. Henrich, V. E. TI Magnetic structure of Fe-doped CoFe2O4 probed by x-ray magnetic spectroscopies SO PHYSICAL REVIEW B LA English DT Article ID TRANSITION-METAL COMPOUNDS; FERRITE THIN-FILMS; 2P ABSORPTION-SPECTRA; CIRCULAR-DICHROISM; COBALT FERRITE; SUBSTITUTED MAGNETITE; ANISOTROPY; ORIGIN; FE3O4; SPINTRONICS AB The magnetic properties of iron-doped cobalt ferrite (Co1-xFe2+xO4) (001) thin films grown epitaxially on MgO (001) substrates are investigated by superconducting quantum interference device magnetometry and soft x-ray magnetic linear and circular dichroisms. All Co1-xFe2+ xO4 (0.01 <= x <= 0.63) samples have out-of-plane magnetic easy axes and large coercive fields, unlike Fe3O4, due to a large Co2+ orbital moment. The magnetic moments for those samples are significantly reduced from their bulk values; however, as x increases, the magnetic moments tend nearer to their bulk values and increase more rapidly as x approaches 1. This reduction in magnetic moment is attributed to spin canting among the Co2+ cations, owing to a small in-plane tensile strain in the film and to an increased antiferromagnetic alignment among all the cations caused by a partially inverse spinel cubic structure and the likely presence of antiphase boundaries. Our results show that small changes in stoichiometry can lead to significant changes in the magnetic moment of Co1-xFe2+ xO(4), especially at large values of x. C1 [Moyer, J. A.; Vaz, C. A. F.; Kumah, D.; Henrich, V. E.] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA. [Moyer, J. A.; Vaz, C. A. F.; Kumah, D.; Henrich, V. E.] Yale Univ, Ctr Res Interface Struct & Phenomena, New Haven, CT 06511 USA. [Arena, D. A.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Negusse, E.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. RP Moyer, JA (reprint author), Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA. EM jarrett.moyer@yale.edu RI Kumah, Divine/A-7031-2011; Vaz, Carlos/A-7240-2012 OI Kumah, Divine/0000-0003-0715-1285; Vaz, Carlos/0000-0002-6209-8918 FU NSF [MRSEC DMR 0520495 (CRISP)]; Army Research Office [W911NF-08-1-0325]; DOE [DE-08NT0004115]; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX The authors acknowledge financial support by the NSF through Grant No. MRSEC DMR 0520495 (CRISP). One of us (EN) acknowledges the support of the Army Research Office under Grant No. W911NF-08-1-0325 and DOE under Grant DE-08NT0004115. Use of the National Synchrotron Light Source, Brookhaven National Laboratory, was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 65 TC 37 Z9 38 U1 1 U2 51 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 15 PY 2011 VL 84 IS 5 AR 054447 DI 10.1103/PhysRevB.84.054447 PG 10 WC Physics, Condensed Matter SC Physics GA 806RZ UT WOS:000293829800007 ER PT J AU Zhai, YT Chen, SY Yang, JH Xiang, HJ Gong, XG Walsh, A Kang, J Wei, SH AF Zhai, Ying-Teng Chen, Shiyou Yang, Ji-Hui Xiang, Hong-Jun Gong, Xin-Gao Walsh, Aron Kang, Joongoo Wei, Su-Huai TI Structural diversity and electronic properties of Cu2SnX3 (X = S, Se): A first-principles investigation SO PHYSICAL REVIEW B LA English DT Article ID CRYSTAL-STRUCTURE; THIN-FILMS; STRUCTURE REFINEMENT; SOLAR-CELLS; NANOCRYSTALS; CU2ZNSNS4; GROWTH AB The ternary semiconductors Cu2SnX3 (X = S, Se) are found frequently as secondary phases in synthesized Cu2ZnSnS4 and Cu2ZnSnSe4 samples, but previous reports on their crystal structures and electronic band gaps are conflicting. Here we report their structural and electronic properties as calculated using a first-principles approach. We find that (i) the diverse range of crystal structures such as the monoclinic, cubic, and tetragonal phases can all be derived from the zinc-blende structure with tetrahedral coordination. (ii) The energy stability of different structures is determined primarily by the local cation coordination around anions, which can be explained by a generalized valence octet rule. Structures with only Cu3Sn and Cu2Sn2 clusters around the anions have low and nearly degenerate energies, which makes Cu and Sn partially disordered in the cation sublattice. (iii) The direct band gaps of the low-energy compounds Cu2SnS3 and Cu2SnSe3 should be in the range of 0.8-0.9 and 0.4 eV, respectively, and are weakly dependent on the long-range structural order. A direct analogy is drawn with the ordered vacancy compounds found in the Cu(In,Ga)Se-2 solar-cell absorbers. C1 [Zhai, Ying-Teng; Yang, Ji-Hui; Xiang, Hong-Jun; Gong, Xin-Gao] Fudan Univ, Key Lab Computat Phys Sci MOE & Surface Phys, Shanghai 200433, Peoples R China. [Chen, Shiyou] E China Normal Univ, Key Lab Polar Mat & Devices MOE, Shanghai 200241, Peoples R China. [Walsh, Aron] Univ Bath, Ctr Sustainable Chem Technol, Bath BA2 7AY, Avon, England. [Walsh, Aron] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England. [Kang, Joongoo; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Zhai, YT (reprint author), Fudan Univ, Key Lab Computat Phys Sci MOE & Surface Phys, Shanghai 200433, Peoples R China. RI Walsh, Aron/A-7843-2008; Xiang, Hongjun/I-4305-2016; gong, xingao/D-6532-2011 OI Walsh, Aron/0000-0001-5460-7033; Xiang, Hongjun/0000-0002-9396-3214; FU NSF of China [10934002, 10950110324]; NSF of Shanghai [10ZR1408800]; Shanghai municipality; MOE; Special Funds for Major State Basic Research, CC of ECNU; Fundamental Research Funds for the Central Universities; EPSRC [EP/F067496]; US Department of Energy, EERE [DE-AC36-08GO28308] FX This work is supported by NSF of China (No. 10934002 and No. 10950110324) and Shanghai (No. 10ZR1408800), the Research Program of Shanghai municipality and MOE, the Special Funds for Major State Basic Research, CC of ECNU and the Fundamental Research Funds for the Central Universities. A. W. acknowledges membership in the UK HPC Materials Chemistry Consortium, which is funded by EPSRC (Grant No. EP/F067496). The work at NREL is funded by the US Department of Energy, EERE, under Contract No. DE-AC36-08GO28308. NR 30 TC 76 Z9 77 U1 6 U2 115 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD AUG 15 PY 2011 VL 84 IS 7 AR 075213 DI 10.1103/PhysRevB.84.075213 PG 6 WC Physics, Condensed Matter SC Physics GA 806SG UT WOS:000293830800011 ER PT J AU Stanley, JR Adkins, JN Slysz, GW Monroe, ME Purvine, SO Karpievitch, YV Anderson, GA Smith, RD Dabney, AR AF Stanley, Jeffrey R. Adkins, Joshua N. Slysz, Gordon W. Monroe, Matthew E. Purvine, Samuel O. Karpievitch, Yuliya V. Anderson, Gordon A. Smith, Richard D. Dabney, Alan R. TI A Statistical Method for Assessing Peptide Identification Confidence in Accurate Mass and Time Tag Proteomics SO ANALYTICAL CHEMISTRY LA English DT Article ID PROTEIN IDENTIFICATION; SEQUENCE DATABASES; SPECTROMETRY DATA; SEARCH STRATEGY; SPECTRAL DATA; TANDEM; MODEL; PROBABILITIES; VALIDATION; ALGORITHM AB Current algorithms for quantifying peptide identification confidence in the accurate mass and time (AMT) tag approach assume that the AMT tags themselves have been correctly identified. However, there is uncertainty in the identification of AMT tags, because this is based on matching LC-MS/MS fragmentation spectra to peptide sequences. In this paper, we incorporate confidence measures for the AMT tag identifications into the calculation of probabilities for correct matches to an AMT tag database, resulting in a more accurate overall measure of identification confidence for the AMT tag approach. The method is referenced as Statistical Tools for AMT Tag Confidence (STAC). STAC additionally provides a uniqueness probability (UP) to help distinguish between multiple matches to an AMT tag and a method to calculate an overall false discovery rate (FDR). STAC is freely available for download, as both a command line and a Windows graphical application. C1 [Adkins, Joshua N.; Slysz, Gordon W.; Monroe, Matthew E.; Purvine, Samuel O.; Karpievitch, Yuliya V.; Anderson, Gordon A.; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Stanley, Jeffrey R.; Dabney, Alan R.] Texas A&M Univ, Dept Stat, College Stn, TX 77840 USA. RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. EM rds@pnl.gov; adabney@stat.tamu.edu RI Dabney, Alan/C-1171-2011; Smith, Richard/J-3664-2012; Adkins, Joshua/B-9881-2013 OI Smith, Richard/0000-0002-2381-2349; Adkins, Joshua/0000-0003-0399-0700 FU NIH National Center for Research Resources [RR18522]; National Institute of Allergy and Infectious Diseases NIH/DHHS [Y1-AI-8401, U54AI081680]; U.S. Department of Energy's Office of Biological and Environmental Research; U.S. Department of Energy [DE-AC05-76RL0 1830] FX The authors thank Drs. Roslyn Brown and Kristin Burnum, and Navdeep Jaitly for helpful discussions and assistance with parts of the data analysis. This research was supported by the NIH National Center for Research Resources (No. RR18522) and the National Institute of Allergy and Infectious Diseases NIH/DHHS (through Interagency Agreement No. Y1-AI-8401 and Award No. U54AI081680). Work was performed in the Environmental Molecular Science Laboratory, which is a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory in Richland, WA. Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the U.S. Department of Energy, under Contract No. DE-AC05-76RL0 1830. NR 33 TC 25 Z9 26 U1 0 U2 10 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD AUG 15 PY 2011 VL 83 IS 16 BP 6135 EP 6140 DI 10.1021/ac2009806 PG 6 WC Chemistry, Analytical SC Chemistry GA 805WD UT WOS:000293758800004 PM 21692516 ER PT J AU Liu, HC Yang, L Khainovski, N Dong, M Hall, SC Fisher, SJ Biggin, MD Jin, J Witkowska, HE AF Liu, Haichuan Yang, Lee Khainovski, Nikita Dong, Ming Hall, Steven C. Fisher, Susan J. Biggin, Mark D. Jin, Jian Witkowska, H. Ewa TI Automated Iterative MS/MS Acquisition: A Tool for Improving Efficiency of Protein Identification Using a LC-MALDI MS Workflow SO ANALYTICAL CHEMISTRY LA English DT Article ID PRECURSOR ION SELECTION; MASS-SPECTROMETRY; LIQUID-CHROMATOGRAPHY; SHOTGUN PROTEOMICS; RETENTION TIMES; NEXT-GENERATION; PREDICTION; PEPTIDES; STRATEGY; QUANTITATION AB We have developed an information-dependent, iterative MS/MS acquisition (IMMA) tool for improving MS/MS efficiency, increasing proteome coverage, and shortening analysis time for high-throughput proteomics applications based on the LC-MALDI MS/MS platform. The underlying principle of IMMA is to limit MS/MS analyses to a subset of molecular ions that are likely to identify a maximum number of proteins. IMMA reduces redundancy of MS/MS analyses by excluding from the precursor ion peak lists proteotypic peptides derived from the already identified proteins and uses a retention time prediction algorithm to limit the degree of false exclusions. It also increases the utilization rate of MS/MS spectra by removing "low value" unidentifiable targets like nonpeptides and peptides carrying large loads of modifications, which are flagged by their "nonpeptide" excess-to-nominal mass ratios. For some samples, IMMA increases the number of identified proteins by similar to 20-40% when compared to the data dependent methods. IMMA terminates an MS/MS run at the operator defined point when "costs" (e.g, time of analysis) start to overrun "benefits" (e.g, number of identified proteins), without prior knowledge of sample contents and complexity. To facilitate analysis of closely related samples, IMMA's inclusion list functionality is currently under development. C1 [Liu, Haichuan; Hall, Steven C.; Fisher, Susan J.; Witkowska, H. Ewa] Univ Calif San Francisco, UCSF Sandler Moore Mass Spectrometry Core Facil, San Francisco, CA 94143 USA. [Liu, Haichuan; Hall, Steven C.; Fisher, Susan J.; Witkowska, H. Ewa] Univ Calif San Francisco, Dept Obstet Gynecol & Reprod Sci, San Francisco, CA 94143 USA. [Yang, Lee; Dong, Ming; Biggin, Mark D.; Jin, Jian] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Witkowska, HE (reprint author), Univ Calif San Francisco, UCSF Sandler Moore Mass Spectrometry Core Facil, San Francisco, CA 94143 USA. EM witkowsk@cgl.ucsf.edu FU Office of Science, Office of Biological and Environmental Research of the U.S. Department of Energy [DE-AC02-05CH11231] FX H.L. and L.Y. contributed equally to this work. This work conducted by ENIGMA, Ecosystems and Networks Integrated with Genes and Molecular Assemblies, was supported by the Office of Science, Office of Biological and Environmental Research of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The authors thank Dr. Terry Hazen and his co-workers from LBNL for providing DvH biomass and Dr. Sean L. Seymour from AB Sciex for technical support regarding the ProteinPilot search engine and Oracle database. We acknowledge the support of Dr. Fadi Abdi and AB Sciex for providing a 5800 TOF/TOF mass spectrometer for this study. We thank Dr. O. David Sparkman for helpful discussion. We are indebted to the members of the Fisher lab and the UCSF Sandler-Moore Mass Spectrometry Core Facility and especially to Drs. Rich Niles, Simon Allen, Katherine Williams, and Evelin D. Szakal for their support and discussion. NR 40 TC 5 Z9 5 U1 4 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD AUG 15 PY 2011 VL 83 IS 16 BP 6286 EP 6293 DI 10.1021/ac200911v PG 8 WC Chemistry, Analytical SC Chemistry GA 805WD UT WOS:000293758800025 PM 21761829 ER PT J AU Phan, A Czaja, AU Gandara, F Knobler, CB Yaghi, OM AF Phan, Anh Czaja, Alexander U. Gandara, Felipe Knobler, Carolyn B. Yaghi, Omar M. TI Metal-Organic Frameworks of Vanadium as Catalysts for Conversion of Methane to Acetic Acid SO INORGANIC CHEMISTRY LA English DT Article ID STRUCTURAL-CHARACTERIZATION; CO; HYBRID; AMAVADINE; CH4 AB A catalytic system combining the high activity of homogeneous catalysts and the ease of use of heterogeneous catalysts for methane activation is reported. The vanadium-containing metal-organic frameworks (MOFs) MIL-47 and MOF-48 are found to have high catalytic activity and chemical stability. They convert methane selectively to acetic acid with 70% yield (490 TON) based on K2S2O8 as an oxidant. Isotopic labeling experiments showed that two methane molecules are converted to the produced acetic acid. The MOF catalysts are reusable and remain catalytically active for several recycling steps without losing their crystalline structures. C1 [Phan, Anh; Gandara, Felipe; Knobler, Carolyn B.; Yaghi, Omar M.] Univ Calif Los Angeles, DOE UCLA Inst Genom & Prote, Ctr Global Mentoring, Ctr Reticular Chem, Los Angeles, CA 90095 USA. [Phan, Anh; Gandara, Felipe; Knobler, Carolyn B.; Yaghi, Omar M.] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA. [Czaja, Alexander U.] GCC PZ, Chem Res & Engn, BASF SE, Ludwigshafen, Germany. [Yaghi, Omar M.] Korea Adv Inst Sci & Technol, Grad Sch EEWS, Taejon 305701, South Korea. RP Yaghi, OM (reprint author), Univ Calif Los Angeles, DOE UCLA Inst Genom & Prote, Ctr Global Mentoring, Ctr Reticular Chem, 607 Charles E Young Dr E, Los Angeles, CA 90095 USA. EM yaghi@chem.ucla.edu RI Gandara, Felipe/B-9198-2013; OI Gandara, Felipe/0000-0002-1671-6260; Yaghi, Omar/0000-0002-5611-3325 FU BASF SE (Ludwigshafen, Germany); WCU [R-31-2008-000-10055-0]; Spanish Ministry of Education [I-D+i 2008-2011] FX This work was supported by BASF SE (Ludwigshafen, Germany). We thank Dr. Siddhartha Das and Dr. Hiroyasu Furukawa for valuable discussions. O.M.Y. was also supported by the WCU program (R-31-2008-000-10055-0). F.G. acknowledges funding by the Spanish Ministry of Education through the "Programa de Movilidad de Recursos Humanos del Plan Nacional de I-D+i 2008-2011". NR 16 TC 67 Z9 67 U1 15 U2 173 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD AUG 15 PY 2011 VL 50 IS 16 BP 7388 EP 7390 DI 10.1021/ic201396m PG 3 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 802EW UT WOS:000293493100010 PM 21766786 ER PT J AU Gorman-Lewis, D Aryal, BP Paunesku, T Vogt, S Lai, B Woloschak, GE Jensen, MP AF Gorman-Lewis, Drew Aryal, Baikuntha P. Paunesku, Tatjana Vogt, Stefan Lai, Barry Woloschak, Gayle E. Jensen, Mark P. TI Direct Determination of the Intracellular Oxidation State of Plutonium SO INORGANIC CHEMISTRY LA English DT Article ID RAY-ABSORPTION SPECTROSCOPY; REDOX STATE; SUBCELLULAR DISTRIBUTION; LIVING CELLS; PH; CHEMISTRY; LIVER; ACTINIDE; MITOCHONDRIAL; ASSOCIATION AB Microprobe X-ray absorption near edge structure (mu-XANES) measurements were used to determine directly, for the first time, the oxidation state of intracellular plutonium in individual 0.1-mu m(2) areas within single rat pheochromocytoma cells (PC 12). The living cells were incubated in vitro for 3 h in the presence of Pu added to the media in different oxidation states (Pu(III), Pu(IV), and Pu(VI)) and in different chemical forms. Regardless of the initial oxidation state or chemical form of Pu presented to the cells, the XANES spectra of the intracellular Pu deposits were always consistent with tetravalent Pu even though the intracellular milieu is generally reducing. C1 [Gorman-Lewis, Drew; Aryal, Baikuntha P.; Jensen, Mark P.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Vogt, Stefan; Lai, Barry] Argonne Natl Lab, Expt Facil Div, Argonne, IL 60439 USA. [Aryal, Baikuntha P.] Univ Chicago, Dept Chem, Chicago, IL 60637 USA. [Paunesku, Tatjana; Woloschak, Gayle E.] Northwestern Univ, Feinberg Sch Med, Dept Radiol, Chicago, IL 60611 USA. [Paunesku, Tatjana; Woloschak, Gayle E.] Northwestern Univ, Feinberg Sch Med, Dept Radiat Oncol, Chicago, IL 60611 USA. RP Jensen, MP (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. EM mjensen@anl.gov RI Jensen, Mark/G-9131-2012; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013; Paunesku, Tatjana/A-3488-2017; Woloschak, Gayle/A-3799-2017 OI Jensen, Mark/0000-0003-4494-6693; Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513; Paunesku, Tatjana/0000-0001-8698-2938; Woloschak, Gayle/0000-0001-9209-8954 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CHI11357]; University of Chicago; Department of Energy [H.35] FX We thank Dr. L. Soderholm for invaluable assistance in the earlier stages of this work, as well as the staff of APS XOR beamlines 2-ID and 12-BM and the Actinide Facility for the support and infrastructure that made these experiments possible. The work at Argonne National Laboratory and use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract DE-AC02-06CHI11357, and by the University of Chicago and the Department of Energy under section H.35 of this contract awarded to UChicago Argonne LLC, operator of Argonne National Laboratory. NR 67 TC 11 Z9 11 U1 2 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD AUG 15 PY 2011 VL 50 IS 16 BP 7591 EP 7597 DI 10.1021/ic200588p PG 7 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 802EW UT WOS:000293493100030 PM 21755934 ER PT J AU Ramezanipour, F Greedan, JE Siewenie, J Proffen, T Ryan, DH Grosvenor, AP Donaberger, RL AF Ramezanipour, Farshid Greedan, John E. Siewenie, Joan Proffen, Th Ryan, Dominic H. Grosvenor, Andrew P. Donaberger, Ronald L. TI Local and Average Structures and Magnetic Properties of Sr2FeMnO5+y, y=0.0, 0.5. Comparisons with Ca2FeMnO5 and the Effect of the A-Site Cation SO INORGANIC CHEMISTRY LA English DT Article ID NEUTRON-DIFFRACTION; CRYSTAL-STRUCTURE; X-RAY; BROWNMILLERITE; SPECTROSCOPY; CA2FE2O5; SR2FE2O5; FERRITE; TEMPERATURE AB Sr2FeMnO5+y, was synthesized under two different conditions, in air and in argon, both of which resulted in a cubic, Pm (3) over barm, structure with no long-range ordering of oxygen vacancies. The unit cell constants were found to be a(0) = 3.89328(1) angstrom for argon (y = 0.0) and a(0) = 3.83075(3) angstrom for air (y = 0.5). In contrast, Ca2FeMnO5 retains long-range brownmillerite oxygen vacancy ordering for either air or argon synthesis. Remarkably, Sr2FeMnO5.0 oxidizes spontaneously in air at room temperature. A neutron pair distribution function (NPDF) study of Sr2FeMnO5.0(Ar) showed evidence for local, brownmillerite-like ordering of oxygen vacancies for short distances up to 5 angstrom. Mossbauer spectroscopy results indicate more than one Fe site for Sr2FeMnO5+y(Ar and air), consistent with the noncubic local structure found by NPDF analysis. The isomer shifts and quadrupole splittings in both air- and argon-synthesized materials are consistent with the 3+ oxidation state for Fe in sites with coordination number four or five. This is confirmed by an L-edge XANES study. Mn is almost entirely in the 3+ state for Sr2FeMnO5.0(Ar), whereas Mn4+ is predominantly present for Sr2FeMnO5.5(air). Magnetic susceptibility data show zero-field-cooled/field-cooled (ZFC/FC) divergences near SO K for the Ar sample and 25 K for the air sample, whereas Ca2FeMnO5 is long-range G-type antiferromagnetically ordered at 407(2) K. Hyperfine magnetic splitting, observed in temperature-dependent Mossbauer measurements, indicates short-range magnetic correlations that persist up to 150 K for Sr2FeMnO5.0(Ar) and 100 K for Sr2FeMnO5.5(air), well above the ZFC/FC divergence temperatures. Neutron diffraction data confirm the absence of long-range magnetic ordering at room temperature and 4K for Sr2FeMnO5.0(Ar) but indicate the presence of domains with short-range G-type order at 4 K with an average dimension of similar to 50 angstrom (y = 0); thus, this material is actually a superparamagnet rather than a true spin glass. In sharp contrast, corresponding data for Sr2FeMnO5.5(air) show mainly a very weak magnetic Bragg peak, indicating that similar to 4% of the sample has G-type antiferromagnetic ordering at 4 K. C1 [Ramezanipour, Farshid; Greedan, John E.] McMaster Univ, Dept Chem, Hamilton, ON L8S 4M, Canada. [Ramezanipour, Farshid; Greedan, John E.] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M, Canada. [Siewenie, Joan; Proffen, Th] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Ryan, Dominic H.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Ryan, Dominic H.] McGill Univ, Ctr Phys Mat, Montreal, PQ H3A 2T8, Canada. [Grosvenor, Andrew P.] Univ Saskatchewan, Dept Chem, Saskatoon, SK S7N 5C9, Canada. [Donaberger, Ronald L.] Canadian Neutron Beam Ctr, Chalk River, ON K0J 1J0, Canada. RP Greedan, JE (reprint author), McMaster Univ, Dept Chem, 1280 Main St W, Hamilton, ON L8S 4M, Canada. EM greedan@mcmaster.ca RI Lujan Center, LANL/G-4896-2012; Proffen, Thomas/B-3585-2009 OI Proffen, Thomas/0000-0002-1408-6031 FU Natural Sciences and Engineering Research Council (NSERC) of Canada; Fonds Quebecois de la Recherche sur la Nature et les Technologies; U.S. Department of Energy (DOE), Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396]; National Science Foundation (NSF) [DMR 00-76488]; National Research Council (NRC) of Canada; Canadian Institutes of Health Research; Province of Saskatchewan, Western Economic Diversification Canada; University of Saskatchewan FX J.E.G. and D.H.R acknowledge the support of the Natural Sciences and Engineering Research Council (NSERC) of Canada through Discovery Grants, and D.H.R. was supported by grants from Fonds Quebecois de la Recherche sur la Nature et les Technologies. The authors thank J. M. Cadogan for useful discussions. This work has benefited from the use of NPDF at the Lujan Center at Los Alamos Neutron Science Center, funded by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396. The upgrade of NPDF was funded by the National Science Foundation (NSF) through Grant DMR 00-76488. The Canadian Neutron Beam Centre is funded jointly by NSERC and the National Research Council (NRC) of Canada. Mr. Thomas Regier and Mr. David Chevrier are thanked for helping to carry out XANES measurements using the SGM beamline (11ID-1) located at the Canadian Light Source (CLS). The CLS is supported by NSERC, the National Research Council Canada, the Canadian Institutes of Health Research, the Province of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan. NR 32 TC 6 Z9 6 U1 0 U2 40 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD AUG 15 PY 2011 VL 50 IS 16 BP 7779 EP 7791 DI 10.1021/ic200919m PG 13 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 802EW UT WOS:000293493100051 PM 21766787 ER PT J AU King, G Abakumov, AM Woodward, PM Llobet, A Tsirlin, AA Batuk, D Antipov, EV AF King, Graham Abakumov, Astem M. Woodward, Patrick M. Llobet, Anna Tsirlin, Alexander A. Batuk, Dmitry Antipov, Evgeny V. TI The High-Temperature Polymorphs of K3AlF6 SO INORGANIC CHEMISTRY LA English DT Article ID CRYSTAL-STRUCTURE; DOUBLE PEROVSKITES; PHASE-TRANSITIONS; VII) AB The crystal structures of the three high-temperature polymorphs of K3AlF6 have been solved from neutron powder diffraction, synchrotron X-ray powder diffraction, and electron diffraction data. The beta-phase (stable between 132 and 153 degrees C) and gamma-phase (stable between 153 to 306 degrees C) can be described as unusually complex superstructures of the double-perovskite structure (K2KAlF6) which result from noncooperative tilting of the AlF6 octahedra. The beta-phase is tetragonal, space group I4/m, with lattice parameters of a = 13.3862(5) angstrom and c = 8.5617(3) angstrom (at 143 degrees C) and Z = 10. In this phase, one-fifth of the AlF6 octahedra are rotated about the c-axis by similar to 45 degrees while the other four-fifths remain untilted. The large similar to 45 degrees rotations result in edge sharing between these AlF6 octahedra and the neighboring K-centered polyhedra, resulting in pentagonal bipyramidal coordination for four-fifths of the K+ ions that reside on the B-sites of the perovskite structure. The remaining one-fifth of the K+ ions on the B-sites retain octahedral coordination. The gamma-phase is orthorhombic, space group Fddd, with lattice parameters of a = 36.1276(4) angstrom, b = 17.1133(2) angstrom, and c = 12.0562(1) angstrom (at 225 degrees C) and Z = 48. In the gamma-phase, one-sixth of the AlF6 octahedra are randomly rotated about one of two directions by similar to 45 degrees while the other five-sixths remain essentially untilted. These rotations result in two-thirds of the K+ ions on the B-site obtaining 7-fold coordination while the other one-third remain in octahedral coordination. The delta-phase adopts the ideal cubic double-perovslcite structure, space group Fm (3) over barm, with a = 8.5943(1) angstrom at 400 degrees C. However, pair distribution function analysis shows that locally the delta-phase is quite different from its long-range average crystal structure. The AlF6 octahedra undergo large-amplitude rotations which are accompanied by off-center displacements of the K+ ions that occupy the 12-coordinate A-sites. C1 [King, Graham; Llobet, Anna] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [King, Graham; Woodward, Patrick M.] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA. [Abakumov, Astem M.; Batuk, Dmitry] Univ Antwerp, Electron Microscopy Mat Res EMAT, B-2020 Antwerp, Belgium. [Tsirlin, Alexander A.] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany. [Antipov, Evgeny V.] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia. RP King, G (reprint author), Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, MS H805, Los Alamos, NM 87545 USA. EM gking@lanl.gov RI King, Graham/E-3632-2010; Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012; Tsirlin, Alexander/D-6648-2013; Antipov, Evgeny/A-4138-2014 OI King, Graham/0000-0003-1886-7254; Tsirlin, Alexander/0000-0001-6916-8256; Antipov, Evgeny/0000-0002-8886-8829 FU Department of Energy (DOE) Office of Basic Energy Sciences; DOE [DE-AC52 06NA25396]; National Science Foundation [DMR-0907356]; Alexander von Humboldt Foundation FX This work has benefited from the use of the NPDF at the Lujan Center at Los Alamos Neutron Science Center, funded by the Department of Energy (DOE) Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52 06NA25396. P.M.W. acknowledges financial support from the National Science Foundation (Award Number DMR-0907356). We thank Joan Siewenie and Thomas Proffen for assistance in collection of the total scattering data. We are grateful to the ESRF for providing the beamtime at ID31 and acknowledge Caroline Curfs for her kind help during the experiment. We thank Aziz Daoud-Aladine and Kevin Knight for assistance in collecting the NPD data on the HRPD. A.T. was funded by the Alexander von Humboldt Foundation. NR 20 TC 8 Z9 8 U1 1 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD AUG 15 PY 2011 VL 50 IS 16 BP 7792 EP 7801 DI 10.1021/ic200956a PG 10 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 802EW UT WOS:000293493100052 PM 21744814 ER PT J AU Paglieri, SN Pal, NK Dolan, MD Kim, SM Chien, WM Lamb, J Chandra, D Hubbard, KM Moore, DP AF Paglieri, Stephen N. Pal, Narendra K. Dolan, Michael D. Kim, Sang-Mun Chien, Wen-Ming Lamb, Joshua Chandra, Dhanesh Hubbard, Kevin M. Moore, David P. TI Hydrogen permeability, thermal stability and hydrogen embrittlement of Ni-Nb-Zr and Ni-Nb-Ta-Zr amorphous alloy membranes SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Hydrogen permeability; Amorphous alloy membrane; Thermal stability; Hydrogen embrittlement; Metallic interdiffusion ID BULK METALLIC GLASSES; PERMEATION PROPERTIES; NATURAL-GAS; SEPARATION; TI; DIFFUSION; DEUTERIUM; NIOBIUM; RESISTANCE; ZIRCONIUM AB Amorphous alloys are a promising alternative to Pd alloy membranes for hydrogen separation because of their lower cost and comparable hydrogen permeability. A series of amorphous alloy membranes consisting of Ni(60)Nb(20)Zr(20) (at%), (Ni(0.6)Nb(0.4))(100-x)Zr(x) and (Ni(0.6)Nb(0.3)Ta(0.1))(100-x)Zr(x) (where x= 0, 10, 20 or 30) were prepared by melt spinning and then coating the foil surfaces with a thin (500 nm) layer of Pd using physical vapor deposition (PVD). A (Ni(0.6)Nb(0.4))(70)Zr(30) membrane exhibited the highest hydrogen permeability (1.4 x 10(-8) mol m(-1) s(-1) Pa-(0.5)) of any of the materials, measured in pure hydrogen at 450 degrees C. Membrane permeability increased with Zr content, but membranes higher in Zr were more susceptible to brittle failure and were more thermally unstable. Decreases in hydrogen permeability were almost always observed during long-term permeability tests at 400 and 450 degrees C. The addition of Ta slightly increased the thermal stability, but moderately lowered the hydrogen permeability. An AES depth profile of the membrane surface showed that metallic interdiffusion had taken place between the Pd coating and the bulk membrane, which probably accounts for the reduction in hydrogen permeability over time at 400-450 degrees C. (C) 2011 Elsevier B.V. All rights reserved. C1 [Paglieri, Stephen N.] TDA Res Inc, Wheat Ridge, CO 80033 USA. [Pal, Narendra K.; Kim, Sang-Mun; Chien, Wen-Ming; Lamb, Joshua; Chandra, Dhanesh] Univ Nevada, Reno, NV 89557 USA. [Dolan, Michael D.] Commonwealth Sci & Ind Res Org, Div Energy Technol, Kenmore, Qld 4069, Australia. [Hubbard, Kevin M.; Moore, David P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Paglieri, SN (reprint author), TDA Res Inc, Wheat Ridge, CO 80033 USA. EM spaglieri@tda.com; Michael.Dolan@csiro.au; dchandra@unr.edu; khubbard@lanl.gov RI Dolan, Michael/H-3100-2013; OI Moore, David/0000-0002-0645-587X FU Department of Energy National Energy Technology Laboratory [FE0000998] FX This material is based upon work supported by the Department of Energy National Energy Technology Laboratory under Award Number DE-FE0000998. Amorphous alloys were prepared by Michael Kellam at the Commonwealth Scientific and Industrial Research Organisation. The authors wish to express their appreciation to Sarah J. DeVoss, Rita Dubovik, Vladimir Y. Belits, Tyler B. Gleditsch and Kerry A. Libberton for assistance with experimental setup. XRD, data collection and photography. NR 66 TC 31 Z9 31 U1 4 U2 33 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD AUG 15 PY 2011 VL 378 IS 1-2 SI SI BP 42 EP 50 DI 10.1016/j.memsci.2011.04.049 PG 9 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 796ER UT WOS:000293035100006 ER PT J AU Woods, J Pellegrino, J Kozubal, E Burch, J AF Woods, Jason Pellegrino, John Kozubal, Eric Burch, Jay TI Design and experimental characterization of a membrane-based absorption heat pump SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Absorption heat pump; Contactor; Desiccant; Membrane distillation; Energy harvesting ID DISTILLATION; CONDUCTION; CONTACTOR AB A membrane absorption heat pump uses absorbent and refrigerant (solvent) flows separated by a membrane to create temperature gradients (aka temperature lifts) used for heating or cooling. Compared to vacuum absorption heat pumps, an atmospheric-pressure membrane heat pump provides more compact designs, potentially enabling applications such as energy-efficient cooling for electronics. In addition, storing concentrated absorbent offers unique options for energy storage for solar heating and cooling of buildings. A new membrane heat pump module was built using two sets of rows of hollow fibers with stagnant air between the fibers to reduce conductive heat transfer. Transport coefficients for the complex air-gap geometry were estimated with a three-dimensional finite-volume heat transfer analysis of the air gap region with results fitted to a modified conduction shape factor. A two-dimensional finite-difference model of the entire process shows good agreement with experiments performed over different air-gap widths, flow rates, inlet temperatures, and absorbent concentrations. Temperature lifts up to 9 degrees C were achieved with 39% (mass) LiCl(aq) feed solution and 35 degrees C inlet temperatures. Extensions of the modeling to higher-porosity, larger-pore-size membranes suggest that temperature lifts of 14 degrees C at ambient inlet temperatures are achievable in our module geometry. (C) 2010 Elsevier B.V. All rights reserved. C1 [Woods, Jason; Kozubal, Eric; Burch, Jay] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Woods, Jason; Pellegrino, John] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA. RP Woods, J (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM jason.woods@nrel.gov OI PELLEGRINO, JOHN/0000-0001-7749-5003; Woods, Jason/0000-0002-7661-2658 FU U.S. Department of Energy (DOE); DOE FX The authors would like to acknowledge the support of the U.S. Department of Energy (DOE) Solar Heating and Cooling Program, as well as the Emerging Technologies Program from the DOE Energy Efficiency and Renewable Energy Buildings Technologies Program. They would also like to thank Jeff Tomerlin, Greg Perrin, and James Page for their help with the experimental portion of this research. NR 25 TC 15 Z9 15 U1 3 U2 23 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD AUG 15 PY 2011 VL 378 IS 1-2 SI SI BP 85 EP 94 DI 10.1016/j.memsci.2010.11.012 PG 10 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 796ER UT WOS:000293035100010 ER PT J AU Brinkman, K Fox, E Korinko, P Missimer, D Adams, T Su, D AF Brinkman, Kyle Fox, Elise Korinko, Paul Missimer, David Adams, Thad Su, Dong TI The role of partial crystallinity on hydrogen permeation in Fe-Ni-B-Mo based metallic glass membranes SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Metallic glass; Hydrogen separation membrane; Crystallization kinetics ID CRYSTALLIZATION BEHAVIOR; SEPARATION; ALLOY; KINETICS; MODEL AB A potentially exciting material for membrane separations are metallic glass materials due to their low cost, high elastic toughness and resistance to hydrogen embrittlement as compared to crystalline Pd-based membrane systems. However, at elevated temperatures and extended operation times structural changes including partial crystallinity may appear in these amorphous metallic systems. This study reports on the investigation of time and temperature dependent crystalline phase formation in conjunction with in situ crystallization/hydrogen permeation experiments at elevated temperatures. At temperatures near 400 degrees C a FeNi crystalline phase appears as 22 vol.% inside the host amorphous matrix and the resulting composite structure remains stable over 3 h at temperature. The hydrogen permeation at 400 degrees C of the partially crystalline material is similar to the fully amorphous material near 5 x 10(-9) mol H(2)/m s Pa(1/2), while ambient temperature electrochemical permeation at 25 degrees C revealed an order of magnitude decrease in the permeation of partially crystalline materials due to differences in the amorphous versus crystalline phase activation energy for hydrogen permeation. (C) 2011 Elsevier B.V. All rights reserved. C1 [Brinkman, Kyle; Fox, Elise; Korinko, Paul; Missimer, David; Adams, Thad] Savannah River Natl Lab, Aiken, SC 29808 USA. [Su, Dong] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Brinkman, K (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA. EM kyle.brinkman@srnl.doe.gov RI Su, Dong/A-8233-2013; OI Su, Dong/0000-0002-1921-6683; Brinkman, Kyle/0000-0002-2219-1253 FU U.S. Department of Energy [DE-AC09-08SR22470]; SRNL Laboratory Directed Research and Development (LDRD); U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX This document was prepared in conjunction with work accomplished under Contract No. DE-AC09-08SR22470 with the U.S. Department of Energy. E.F., P.K., K.B., D.M., T.A., acknowledge the financial support of the SRNL Laboratory Directed Research and Development (LDRD) program related to experimental work on the temperature dependent XRD determined crystalline content. K.B. acknowledges the DOE-BES EFRC "HeteroFoaM" for support on analysis of hydrogen transport in amorphous and crystalline heterogeneous materials. This research has been partially carried out at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. Mr. Kissinger of BNL is gratefully acknowledged for his help with TEM sample preparation. NR 32 TC 8 Z9 8 U1 2 U2 12 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD AUG 15 PY 2011 VL 378 IS 1-2 SI SI BP 301 EP 307 DI 10.1016/j.memsci.2011.05.014 PG 7 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 796ER UT WOS:000293035100034 ER PT J AU Lacey, RA Wei, R Ajitanand, NN Alexander, JM Jia, J Taranenko, A AF Lacey, Roy A. Wei, Rui Ajitanand, N. N. Alexander, J. M. Jia, J. Taranenko, A. TI Glauber-based evaluations of the odd moments of the initial eccentricity relative to the even order participant planes SO PHYSICAL REVIEW C LA English DT Article ID ELLIPTIC-FLOW; ENERGY-LOSS; COLLISIONS AB Monte Carlo simulations are used to compute the centrality dependence of the odd moments of the initial eccentricity epsilon(n+1), relative to the even-order (n) participant planes Psi(n) in Au + Au collisions. The results obtained for two models of the eccentricity-the Glauber and the factorized Kharzeev-Levin-Nardi (fKLN) models-indicate magnitudes which are essentially zero. They suggest that a possible correlation between the orientations of the the odd and even participant planes (Psi(n+1) and Psi(n), respectively) does not have a significant influence on the calculated eccentricities. An experimental verification test for correlations between the orientations of the the odd and even participant planes is also proposed. C1 [Lacey, Roy A.; Wei, Rui; Ajitanand, N. N.; Alexander, J. M.; Jia, J.; Taranenko, A.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Jia, J.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Lacey, RA (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. EM Roy.Lacey@Stonybrook.edu FU US DOE [DE-FG02-87ER40331.A008] FX This research is supported by the US DOE under Contract DE-FG02-87ER40331.A008. NR 46 TC 7 Z9 7 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD AUG 15 PY 2011 VL 84 IS 2 AR 027901 DI 10.1103/PhysRevC.84.027901 PG 3 WC Physics, Nuclear SC Physics GA 806VE UT WOS:000293842100005 ER PT J AU Young, C Schenke, B Jeon, S Gale, C AF Young, Clint Schenke, Bjoern Jeon, Sangyong Gale, Charles TI Dijet asymmetry at the energies available at the CERN Large Hadron Collider SO PHYSICAL REVIEW C LA English DT Article AB The MARTINI numerical simulation allows for direct comparison of theoretical model calculations and the latest results for dijet asymmetry from the ATLAS and CMS collaborations. In this paper, partons are simulated as undergoing radiative and collisional processes throughout the evolution of central lead-lead collisions at the Large Hadron Collider. Using hydrodynamical background evolution determined by a simulation which fits well with the data on charged particle multiplicities from ALICE and a value of alpha(s) approximate to 0.25-0.3, the dijet asymmetry is found to be consistent with partonic energy loss in a hot, strongly interacting medium. C1 [Young, Clint; Jeon, Sangyong; Gale, Charles] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Schenke, Bjoern] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Young, C (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada. EM clinty@physics.mcgill.ca; bschenke@quark.phy.bnl.gov; jeon@physics.mcgill.ca; gale@physics.mcgill.ca FU Natural Sciences and Engineering Research Council of Canada; US Department of Energy under DOE [DEAC02-98CH10886]; Brookhaven Science Associates FX C.Y. thanks Jean Barrette, Vasile Topor Pop, and Todd Springer for useful discussions. C. G., S.J., and C. Y. were supported by the Natural Sciences and Engineering Research Council of Canada and B. P. S. was supported in part by the US Department of Energy under DOE Contract No. DEAC02-98CH10886 and by a Lab Directed Research and Development Grant from Brookhaven Science Associates. NR 21 TC 49 Z9 50 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD AUG 15 PY 2011 VL 84 IS 2 AR 024907 DI 10.1103/PhysRevC.84.024907 PG 3 WC Physics, Nuclear SC Physics GA 806VE UT WOS:000293842100003 ER PT J AU Spycher, NF Issarangkun, M Stewart, BD Sengor, SS Belding, E Ginn, TR Peyton, BM Sani, RK AF Spycher, Nicolas F. Issarangkun, Montarat Stewart, Brandy D. Sengoer, S. Sevinc Belding, Eileen Ginn, Tim R. Peyton, Brent M. Sani, Rajesh K. TI Biogenic uraninite precipitation and its reoxidation by iron(III) (hydr)oxides: A reaction modeling approach SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID MOLAL THERMODYNAMIC PROPERTIES; SULFATE-REDUCING CONDITIONS; HYDROUS FERRIC-OXIDE; CONTAMINATED AQUIFER; URANIUM-DIOXIDE; MINERALIZATION PATHWAYS; SHEWANELLA-PUTREFACIENS; BICARBONATE SOLUTIONS; SUBSURFACE SEDIMENTS; CHEMICAL-REDUCTION AB One option for immobilizing uranium present in subsurface contaminated groundwater is in situ bioremediation, whereby dissimilatory metal-reducing bacteria and/or sulfate-reducing bacteria are stimulated to catalyze the reduction of soluble U(VI) and precipitate it as uraninite (UO2). This is typically accomplished by amending groundwater with an organic electron donor. It has been shown, however, that once the electron donor is entirely consumed, Fe(III) (hydr)oxides can reoxidize biogenically produced UO2, thus potentially impeding cleanup efforts. On the basis of published experiments showing that such reoxidation takes place even under highly reducing conditions (e.g., sulfate-reducing conditions), thermodynamic and kinetic constraints affecting this reoxidation are examined using multicomponent biogeochemical simulations, with particular focus on the role of sulfide and Fe(II) in solution. The solubility of UO2 and Fe(III) (hydr)oxides are presented, and the effect of nanoscale particle size on stability is discussed. Thermodynamically, sulfide is preferentially oxidized by Fe(III) (hydr) oxides, compared to biogenic UO2, and for this reason the relative rates of sulfide and UO2 oxidation play a key role on whether or not UO2 reoxidizes. The amount of Fe(II) in solution is another important factor, with the precipitation of Fe(II) minerals lowering the Fe+2 activity in solution and increasing the potential for both sulfide and UO2 reoxidation. The greater (and unintuitive) UO2 reoxidation by hematite compared to ferrihydrite previously reported in some experiments can be explained by the exhaustion of this mineral from reaction with sulfide. Simulations also confirm previous studies suggesting that carbonate produced by the degradation of organic electron donors used for bioreduction may significantly increase the potential for UO2 reoxidation through formation of uranyl carbonate aqueous complexes. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Spycher, Nicolas F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Issarangkun, Montarat; Sengoer, S. Sevinc; Belding, Eileen; Ginn, Tim R.] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA. [Stewart, Brandy D.; Peyton, Brent M.] Montana State Univ, Chem & Biol Engn Dept, Bozeman, MT 59717 USA. [Sani, Rajesh K.] S Dakota Sch Mines & Technol, Chem & Biol Engn Dept, Rapid City, SD 57701 USA. RP Spycher, NF (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, MS 90-1116,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM nspycher@lbl.gov RI Peyton, Brent/G-5247-2015; Spycher, Nicolas/E-6899-2010 OI Peyton, Brent/0000-0003-0033-0651; FU U.S. Department of Energy, Office of Science, Subsurface Biogeochemical Research (SBR) [DE-FG02-07ER-64366]; US Department of Energy; LBNL [DE-AC02-05CH11231] FX Funding for this research was provided by the U.S. Department of Energy, Office of Science, Subsurface Biogeochemical Research (SBR) Contract DE-FG02-07ER-64366. This work was also partially supported by the US Department of Energy and LBNL under Contract No. DE-AC02-05CH11231. We thank two anonymous reviewers and particularly P. Van Cappellen and his group for their valued constructive review comments. Editorial support by D. Hawkes is also greatly appreciated. NR 98 TC 15 Z9 15 U1 6 U2 49 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD AUG 15 PY 2011 VL 75 IS 16 BP 4426 EP 4440 DI 10.1016/j.gca.2011.05.008 PG 15 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 795YJ UT WOS:000293015500004 ER PT J AU Lu, P Nuhfer, NT Kelly, S Li, Q Konishi, H Elswick, E Zhu, C AF Lu, Peng Nuhfer, Noel T. Kelly, Shelly Li, Qin Konishi, Hiromi Elswick, Erika Zhu, Chen TI Lead coprecipitation with iron oxyhydroxide nano-particles SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID HYDROUS FERRIC-OXIDE; SURFACE PRECIPITATION; COPPER SORPTION; WATER INTERFACE; CATION SORPTION; FINE-STRUCTURE; SEA-WATER; FERRIHYDRITE; ADSORPTION; GOETHITE AB Pb2+ and Fe3+ coprecipitation was studied with sorption edge measurements, desorption experiments, sorbent aging, High Resolution Transmission and Analytical Electron Microscopy (HR TEM-AEM), and geochemical modeling. Companion adsorption experiments were also conducted for comparison. The macroscopic chemical and near atomic scale HRTEM data supplemented our molecule scale analysis with EXAFS (Kelly et al., 2008). Coprecipitation of Pb2+ with ferric oxyhydroxides occurred at similar to pH 4 and is more efficient than adsorption in removing Pb2+ from aqueous solutions at similar sorbate/sorbent ratios and pH. X-ray Diffraction (XRD) shows peaks of lepidocrocite and two additional broad peaks similar to fine particles of 2-line ferrihydrite (2LFh). HRTEM of the Pb-Fe coprecipitates shows a mixture of 2-6 nm diameter spheres and 8-20 by 200-300 nm needles, both uniformly distributed with Pb2+. Geochemical modeling shows that surface complexation models fit the experimental data of low Pb:Fe ratios when a high site density is used. Desorption experiments show that more Pb2+ was released from loaded sorbents collected from adsorption experiments than from Pb to Fe coprecipitates at dilute EDTA concentrations. Desorbed Pb2+ versus dissolved Fe3+ data show a linear relationship for coprecipitation (CPT) desorption experiments but a parabolic relationship for adsorption (ADS) experiments. Based on these results, we hypothesize that Pb2+ was first adsorbed onto the nanometer-sized, metastable, iron oxyhydroxide polymers of 2LFh with domain size of 2-3 nm. As these nano-particles assembled into larger particles, some Pb2+ was trapped in the iron oxyhydroxide structure and re-arranged to form solid solutions. Therefore, the CPT contact method produced more efficient removal of Pb2+ than the adsorption contact method, and Pb2+ bound in CPT solids represent a more stable sequestration of Pb2+ in the environment than Pb2+ adsorbed on iron oxyhydroxide surfaces. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Lu, Peng; Li, Qin; Konishi, Hiromi; Elswick, Erika; Zhu, Chen] Indiana Univ, Dept Geol Sci, Bloomington, IN 47405 USA. [Nuhfer, Noel T.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15260 USA. [Kelly, Shelly] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Li, Qin] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Peoples R China. [Konishi, Hiromi] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA. RP Zhu, C (reprint author), 1001 E 10th St, Bloomington, IN 47405 USA. EM chenzhu@indiana.edu RI Lu, Peng/C-5148-2011; Li, Qin/J-2627-2014; Zhu, Chen/A-5356-2010 OI Li, Qin/0000-0001-5015-0750; Zhu, Chen/0000-0001-5374-6787 NR 57 TC 18 Z9 19 U1 5 U2 41 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD AUG 15 PY 2011 VL 75 IS 16 BP 4547 EP 4561 DI 10.1016/j.gca.2011.05.035 PG 15 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 795YJ UT WOS:000293015500011 ER PT J AU Muscarella, PA Barton, NP Lipphardt, BL Veron, DE Wong, KC Kirwan, AD AF Muscarella, P. A. Barton, N. P. Lipphardt, B. L., Jr. Veron, D. E. Wong, K. C. Kirwan, A. D., Jr. TI Surface currents and winds at the Delaware Bay mouth SO CONTINENTAL SHELF RESEARCH LA English DT Article DE Delaware Bay mouth; Weather Research and Forecasting (WRF) model; High-frequency radar; Tides; Coastal current ID MONTEREY BAY; HF RADAR; COASTAL CURRENT; INNER SHELF; MODEL; ESTUARY; CONVECTION; DYNAMICS; IMPLEMENTATION; CIRCULATION AB Knowledge of the circulation of estuaries and adjacent shelf waters has relied on hydrographic measurements, moorings, and local wind observations usually removed from the region of interest. Although these observations are certainly sufficient to identify major characteristics, they lack both spatial resolution and temporal coverage. High-resolution synoptic observations are required to identify important coastal processes at smaller scales. Long observation periods are needed to properly sample low-frequency processes that may also be important. The introduction of high-frequency (HF) radar measurements and regional wind models for coastal studies is changing this situation. Here we analyze synoptic, high-resolution surface winds and currents in the Delaware Bay mouth over an 8-month period (October 2007 through May 2008). The surface currents were measured by two HF radars while the surface winds were extracted from a data-assimilating regional wind model. To illustrate the utility of these monitoring tools we focus on two 45-day periods which previously were shown to present contrasting pictures of the circulation. One, the low-outflow period is from 1 October through 14 November 2007; the other is the high-outflow period from 3 March through 16 April 2008. The large-scale characteristics noted by previous workers are clearly corroborated. Specifically the M2 tide dominates the surface currents, and the Delaware Bay outflow plume is clearly evident in the low frequency currents. Several new aspects of the surface circulation were also identified. These include a map of the spatial variability of the M2 tide (validating an earlier model study), persistent low-frequency cross-mouth flow, and a rapid response of the surface currents to a changing wind field. However, strong wind episodes did not persist long enough to set up a sustained Ekman response. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Muscarella, P. A.; Lipphardt, B. L., Jr.; Veron, D. E.; Wong, K. C.; Kirwan, A. D., Jr.] Univ Delaware, Coll Earth Ocean & Environm, Newark, DE 19716 USA. [Barton, N. P.] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA 94551 USA. RP Muscarella, PA (reprint author), Univ Delaware, Coll Earth Ocean & Environm, Newark, DE 19716 USA. EM pmuskee@udel.edu RI Barton, Neil/F-9827-2011; Muscarella, Philip/I-1822-2012 FU University of Delaware College of Earth, Ocean, and Environment; Mary A.S. Lighthipe endowment; Lawrence Livermore National Laboratory (LLNL) [DE-AC52-07NA27344]; National Oceanic and Atmospheric Administration; Mid-Atlantic Coastal Ocean Observing Regional Association FX This work was supported by the Delaware Sea Grant, the University of Delaware College of Earth, Ocean, and Environment, and the Mary A.S. Lighthipe endowment to the University of Delaware. The contribution of N.P. Barton to this work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory (LLNL) under contract DE-AC52-07NA27344 and funded, in part, by the LLNL Institutional Postdoc Program. Operation of the Delaware Bay HF radars is supported by the National Oceanic and Atmospheric Administration and the Mid-Atlantic Coastal Ocean Observing Regional Association. We thank M. Whitney for providing M2 tidal ellipse data from his Delaware Bay model, and for insightful discussions regarding comparisons with HF radar tidal fits. We thank J. Kirby for providing parallel computing resources for the WRF calculations. WRF input data for this study are from the Research Data Archive (RDA) which is maintained by the Computational and Information Systems Laboratory (CISL) at the National Center for Atmospheric Research (NCAR). NCAR is sponsored by the National Science Foundation (NSF). The original WRF input data are available from the RDA (http://dss.ucar.edu) in data set number ds609.2. Chris Hughes provided us with wind observations and valuable guidance on selecting wind stations for our assessment of the WRF model. We also thank Rich Pawlowicz for providing the freely available M_MAP and T_TIDE Matlab toolboxes used here. Finally we are pleased to acknowledge insightful discussions with A. Munchow, F. Pimenta and Ana E. Rice. NR 48 TC 13 Z9 13 U1 0 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0278-4343 EI 1873-6955 J9 CONT SHELF RES JI Cont. Shelf Res. PD AUG 15 PY 2011 VL 31 IS 12 BP 1282 EP 1293 DI 10.1016/j.csr.2011.05.003 PG 12 WC Oceanography SC Oceanography GA 799DM UT WOS:000293263700004 ER PT J AU Chivers, DH Alfonso, K Goldblum, BL Ludewigt, B AF Chivers, D. H. Alfonso, K. Goldblum, B. L. Ludewigt, B. TI Novel methodology for the quantitative assay of fissile materials using temporal and spectral beta-delayed gamma-ray signatures SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article DE Delayed gamma-rays; Active interrogation; Fission reactions ID IDENTIFICATION; ACTINIDES AB An analytical model for the generation of beta-delayed gamma-ray spectra following thermal-neutron-induced fission of mixed samples of (235)U and (239)PU is presented. Using an energy-dependent figure-of-merit to designate the spectral regions employed in the assay, the unique temporal beta-delayed gamma-ray signatures are utilized to determine the fraction of (239)PU in a mixed U-Pu sample. By evaluating the beta-delayed gamma-ray temporal signatures of both (235)U and (239)PU within a 3 key energy bin, traditional sources of systematic uncertainty in quantitative assay using beta-delayed gamma-ray signals, such as self-attenuation of the sample and energy-dependent 7-ray detection efficiency, are significantly reduced. The effects of the time-dependent Compton-continuum and growth of longer-lived nuclides on the quantitative assessment are explored. This methodology represents a promising extension of the conventional means of analysis for quantitative assay of fissile materials using beta-delayed gamma-ray signatures. (C) 2011 Elsevier B.V. All rights reserved. C1 [Goldblum, B. L.] Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA. [Ludewigt, B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Chivers, D. H.; Alfonso, K.; Goldblum, B. L.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. RP Goldblum, BL (reprint author), Univ Tennessee, Dept Nucl Engn, Knoxville, TN 37996 USA. EM goldblum@utk.edu FU University of California, Berkeley, Chancellor; Clare Boothe Luce Foundation; Berkeley Nuclear Research Center [00F8F4, 09-LR-01-117616-VUJJ]; Next Generation Safeguard Initiative of the Office of Nonproliferation and International Security (US DOE) [NA-241]; Office of Nuclear Energy (US DOE); Office of Science of the US Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CHI1231] FX The authors thank S.G. Prussin for fruitful discussions and advice. We gratefully acknowledge the contributions of R.D. Crabbs and J. Lorenzo. This work was supported, in part, by the University of California, Berkeley, Chancellor's Postdoctoral Fellowship Program, the Clare Boothe Luce Foundation, the Berkeley Nuclear Research Center (00F8F4 University of California Lab Fees Research Program, Award Number 09-LR-01-117616-VUJJ), the Next Generation Safeguard Initiative of the Office of Nonproliferation and International Security (US DOE, NA-241), the MPACT campaign of the FCR&D program of the Office of Nuclear Energy (US DOE), and the Director, Office of Science of the US Department of Energy at Lawrence Berkeley National Laboratory under contract number DE-AC02-05CHI1231. NR 19 TC 4 Z9 4 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD AUG 15 PY 2011 VL 269 IS 16 BP 1829 EP 1835 DI 10.1016/j.nimb.2011.05.013 PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 796HB UT WOS:000293041300004 ER PT J AU Oh, SM Jung, HG Yoon, CS Myung, ST Chen, ZH Amine, K Sun, YK AF Oh, Seung-Min Jung, Hun-Gi Yoon, Chong Seung Myung, Seung-Taek Chen, Zonghai Amine, Khalil Sun, Yang-Kook TI Enhanced electrochemical performance of carbon-LiMn1-xFexPO4 nanocomposite cathode for lithium-ion batteries SO JOURNAL OF POWER SOURCES LA English DT Article DE Carbon coating; Olivine; Iron doping; Nanocomposite; Lithium battery ID LIMNPO4; LIFEPO4; TEMPERATURE; CAPACITY; ROUTE; MN AB 4V-class olivine C-LiMn1-xFexPO4 (x = 0 and 0.15) are synthesized by ultrasonic pyrolysis followed by ball milling with AB carbon to evaluate the doping effect of iron. The C-LiMn0.85Fe0.15PO4 shows excellent rate capability having discharge capacity of 150 mAh g(-1) at 0.5C-rate and 121 mAh g(-1) at 2C-rate. The capacity retention of the C-LiMn0.85Fe0.15PO4 is 91% after 50 cycles at 55 degrees C whereas C-LiMnPO4 is limited to 87%. The improved electrochemical performance of the C-LiMn0.85Fe0.15PO4 electrode is attributed to the enhanced electrical conductivity caused by tighter binding on the carbon particles with the LiMn0.85Fe0.15PO4 primary particles as well as by the surface coating of carbon on the primary particles. Published by Elsevier B.V. C1 [Chen, Zonghai; Amine, Khalil] Argonne Natl Lab, Electrochem Technol Program, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Oh, Seung-Min; Jung, Hun-Gi; Sun, Yang-Kook] Hanyang Univ, Dept WCU Energy Engn, Seoul 133791, South Korea. [Oh, Seung-Min; Sun, Yang-Kook] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea. [Yoon, Chong Seung] Hanyang Univ, Dept Mat Sci & Engn, Seoul 133791, South Korea. [Myung, Seung-Taek] Iwate Univ, Dept Chem Engn, Morioka, Iwate 0208551, Japan. RP Amine, K (reprint author), Argonne Natl Lab, Electrochem Technol Program, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM amine@anl.gov; yksun@hanyang.ac.kr RI Sun, Yang-Kook/B-9157-2013; Chen, Zonghai/K-8745-2013; Amine, Khalil/K-9344-2013; Jung, Hun-Gi/P-8305-2014 OI Sun, Yang-Kook/0000-0002-0117-0170; FU Korean government (MEST) [2009-0092780]; Ministry of Education, Science and Technology (MEST) of Korea for the Center for Next Generation Dye-sensitized Solar Cells [2009-0063371] FX This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (No. 2009-0092780) and grant funded from the Ministry of Education, Science and Technology (MEST) of Korea for the Center for Next Generation Dye-sensitized Solar Cells (No.2009-0063371). NR 29 TC 64 Z9 67 U1 9 U2 101 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD AUG 15 PY 2011 VL 196 IS 16 SI SI BP 6924 EP 6928 DI 10.1016/j.jpowsour.2010.11.159 PG 5 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 792CE UT WOS:000292717300050 ER PT J AU Bourg, IC Sposito, G AF Bourg, Ian C. Sposito, Garrison TI Molecular dynamics simulations of the electrical double layer on smectite surfaces contacting concentrated mixed electrolyte (NaCl-CaCl2) solutions SO JOURNAL OF COLLOID AND INTERFACE SCIENCE LA English DT Article DE Clay mineral; Smectite; Montmorillonite; Adsorption; Electrical double layer; Triple layer model; Surface complexation model; Surface complex; Diffusion; Molecular dynamics simulation ID DIOCTAHEDRAL 2/1 PHYLLOSILICATES; OXIDE-WATER INTERFACE; MUSCOVITE 001 SURFACE; RUTILE 110 SURFACE; X-RAY-SCATTERING; CARBON-DIOXIDE; CLAY-MINERALS; DIFFUSION-COEFFICIENTS; COMPUTER-SIMULATIONS; ATOMISTIC SIMULATION AB We report new molecular dynamics results elucidating the structure of the electrical double layer (EDL) on smectite surfaces contacting mixed NaCl-CaCl2 electrolyte solutions in the range of concentrations relevant to pore waters in geologic repositories for CO2 or high-level radioactive waste (0.34-1.83 mol(c) dm(-3)). Our results confirm the existence of three distinct ion adsorption planes (0-, beta-, and d-planes), often assumed in EDL models, but with two important qualifications: (1) the location of the beta- and d-planes are independent of ionic strength or ion type and (2) "indifferent electrolyte" ions can occupy all three planes. Charge inversion occurred in the diffuse ion swarm because of the affinity of the clay surface for CaCl+ ion pairs. Therefore, at concentrations >= 0.34 mol(c) dm(-3), properties arising from long-range electrostatics at interfaces (electrophoresis, electro-osmosis, co-ion exclusion, colloidal aggregation) will not be correctly predicted by most EDL models. Co-ion exclusion, typically neglected by surface speciation models, balanced a large part of the clay mineral structural charge in the more concentrated solutions. Water molecules and ions diffused relatively rapidly even in the first statistical water monolayer, contradicting reports of rigid "ice-like" structures for water on clay mineral surfaces. Published by Elsevier Inc. C1 [Bourg, Ian C.; Sposito, Garrison] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Geochem, Berkeley, CA 94720 USA. RP Bourg, IC (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Geochem, 1 Cyclotron Rd,MS 90-1116, Berkeley, CA 94720 USA. EM icbourg@lbl.gov RI Bourg, Ian/A-6405-2013; OI Bourg, Ian/0000-0002-5265-7229 FU US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-05CH11231]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX This research was performed under the auspices of the Center for Nanoscale Control of Geologic CO2, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-AC02-05CH11231. It used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Data interpretation benefitted from discussions between the first author and Alejandro Fernandez-Martinez (LBNL) and Laura Nielsen (UC Berkeley). NR 130 TC 65 Z9 67 U1 20 U2 120 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9797 J9 J COLLOID INTERF SCI JI J. Colloid Interface Sci. PD AUG 15 PY 2011 VL 360 IS 2 BP 701 EP 715 DI 10.1016/j.jcis.2011.04.063 PG 15 WC Chemistry, Physical SC Chemistry GA 783FE UT WOS:000292066100048 PM 21571296 ER PT J AU Mahalatkar, K Kuhlman, J Huckaby, ED O'Brien, T AF Mahalatkar, Kartikeya Kuhlman, John Huckaby, E. David O'Brien, Thomas TI CFD simulation of a chemical-looping fuel reactor utilizing solid fuel SO CHEMICAL ENGINEERING SCIENCE LA English DT Article DE Computational fluid dynamics; Chemical reactors; Multiphase reactions; Ilmenite; Fluidization; Numerical analysis ID FLUIDIZED-BED REACTOR; OXYGEN CARRIER; REACTION-KINETICS; COMBUSTION PROCESSES; COAL; PARTICLES; MODELS; REVERSIBILITY; GASIFICATION; SEPARATION AB A computational fluid dynamic (CFD) study has been carried out for the fuel reactor for a new type of combustion technology called chemical-looping combustion (CLC). CLC involves combustion of fuels by heterogeneous chemical reactions with an oxygen carrier, usually a granular metal oxide, exchanged between two reactors. There have been extensive experimental studies on CLC, however CFD simulations of this concept are quite limited. In the present paper we have developed a CFD model for the fuel reactor of a chemical-looping combustor described in the literature, which utilized a Fe-based carrier (ilmenite) and coal. An Eulerian multiphase continuum model was used to describe both the gas and solid phases, with detailed sub-models to account for fluid-particle and particle-particle interaction forces. Global reaction models of fuel and carrier chemistry were utilized. The transient results obtained from the simulations were compared with detailed experimental time-varying outlet species concentrations (Leion et al., 2008) and provided a reasonable match with the reported experimental data. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Mahalatkar, Kartikeya; Kuhlman, John] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA. [Kuhlman, John; Huckaby, E. David; O'Brien, Thomas] Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Mahalatkar, Kartikeya] ANSYS Inc, Morgantown, WV 26505 USA. RP Mahalatkar, K (reprint author), W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA. EM kar982@gmail.com FU U.S. Department of Energy; RDS [DE-AC26-04NT41817] FX The authors gratefully acknowledge the financial support of the U.S. Department of Energy, Carbon Sequestration and Gasification Programs administered at the National Energy Technology Laboratory. The first author (KM) acknowledges support provided through RDS Contract DE-AC26-04NT41817. NR 54 TC 19 Z9 20 U1 2 U2 32 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0009-2509 J9 CHEM ENG SCI JI Chem. Eng. Sci. PD AUG 15 PY 2011 VL 66 IS 16 BP 3617 EP 3627 DI 10.1016/j.ces.2011.04.025 PG 11 WC Engineering, Chemical SC Engineering GA 775QJ UT WOS:000291476900005 ER PT J AU Wang, ZH Dobrovitski, VV AF Wang, Zhi-Hui Dobrovitski, V. V. TI Aperiodic dynamical decoupling sequences in the presence of pulse errors SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID NUCLEAR-SPIN; QUANTUM-SYSTEMS; SILICON; DECOHERENCE; RESONANCE; MEMORY; STATES; DOT AB Dynamical decoupling (DD) is a promising tool for preserving the quantum states of qubits. However, small imperfections in the control pulses can seriously affect the fidelity of decoupling, and qualitatively change the evolution of the controlled system at long times. Using both analytical and numerical tools, we theoretically investigate the effect of the pulse error accumulation for two aperiodic DD sequences, Uhrig's DD (UDD) protocol (Uhrig 2007 Phys. Rev. Lett. 98 100504), and the quadratic DD (QDD) protocol (West et al 2010 Phys. Rev. Lett. 104 130501). We consider the implementation of these sequences using the electron spins of phosphorus donors in silicon, where DD sequences are applied to suppress dephasing of the donor spins. The dependence of the decoupling fidelity on different initial states of the spins is the focus of our study. We investigate in detail the initial drop in the DD fidelity, and its long-term saturation. We also demonstrate that by applying the control pulses along different directions, the performance of QDD protocols can be noticeably improved, and explain the reason for such an improvement. Our results can be useful for future implementations of the aperiodic decoupling protocols, and for better understanding of the impact of errors on quantum control of spins. C1 [Wang, Zhi-Hui; Dobrovitski, V. V.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Wang, ZH (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM slava@ameslab.gov FU Department of Energy-Basic Energy Sciences [DE-AC02-07CH11358] FX We would like to thank K Khodjasteh and L Viola for useful discussions, and A M Tyryshkin and S A Lyon for useful discussions and stimulating suggestions. Work at the Ames Laboratory was supported by the Department of Energy-Basic Energy Sciences under contract no DE-AC02-07CH11358. NR 59 TC 11 Z9 11 U1 0 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD AUG 14 PY 2011 VL 44 IS 15 AR 154004 DI 10.1088/0953-4075/44/15/154004 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 796WE UT WOS:000293083400005 ER PT J AU Arsenijevic, S Gaal, R Sefat, AS McGuire, MA Sales, BC Mandrus, D Forro, L AF Arsenijevic, S. Gaal, R. Sefat, A. S. McGuire, M. A. Sales, B. C. Mandrus, D. Forro, L. TI Pressure effects on the transport coefficients of Ba(Fe1-xCox)(2)As-2 SO PHYSICAL REVIEW B LA English DT Article AB We report the temperature dependence of the resistivity and thermoelectric power (TEP) under hydrostatic pressure of the itinerant antiferromagnet BaFe2As2 and the electron-doped superconductor Ba(Fe0.9Co0.1)(2)As-2. We observe a hole-like contribution to the thermopower below the structural/magnetic (S-M) transition in the parent compound that is suppressed in magnitude and temperature with pressure. Pressure increases the contribution of electrons to transport in both the doped and undoped compound. In the 10% Co-doped sample we used a two-band model for thermopower to estimate the carrier concentrations and determine the effect of pressure on the band structure. C1 [Arsenijevic, S.; Gaal, R.; Forro, L.] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland. [Sefat, A. S.; McGuire, M. A.; Sales, B. C.; Mandrus, D.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Mandrus, D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. RP Arsenijevic, S (reprint author), Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland. EM stevan.arsenijevic@epfl.ch RI McGuire, Michael/B-5453-2009; Mandrus, David/H-3090-2014; Sefat, Athena/R-5457-2016 OI McGuire, Michael/0000-0003-1762-9406; Sefat, Athena/0000-0002-5596-3504 FU Swiss NSF; MaNEP NCCR; US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division FX The authors are grateful to P. Stadelmann for useful comments concerning the computation. This work has been supported by the Swiss NSF and by the MaNEP NCCR. Research at ORNL was supported by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. NR 32 TC 11 Z9 11 U1 3 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 12 PY 2011 VL 84 IS 7 AR 075148 DI 10.1103/PhysRevB.84.075148 PG 6 WC Physics, Condensed Matter SC Physics GA 806SF UT WOS:000293830600010 ER PT J AU Khaymovich, IM Chtchelkatchev, NM Vinokur, VM AF Khaymovich, I. M. Chtchelkatchev, N. M. Vinokur, V. M. TI Instability of topological order and localization of edge states in HgTe quantum wells coupled to s-wave superconductor SO PHYSICAL REVIEW B LA English DT Article ID INSULATOR; TRANSPORT; CONTACT; BI2TE3; PHASE AB Using microscopic tight-binding equations we derive the effective Hamiltonian for a two-layer hybrid structure comprising a two-dimensional HgTe quantum-well-based topological insulator (TI) coupled to an s-wave isotropic superconductor and show that it contains terms describing the mixing of TI subband branches by superconducting correlations induced by the proximity effect. We find that the proximity effect breaks down the rotational symmetry of the TI spectrum. We show that the edge states not only acquire a gap, as follows from the standard theory, but can also become localized by the Andreev-backscattering mechanism in a small coupling regime. In a strong-coupling regime the edge states merge with the bulk states, and the TI transforms into an anisotropic narrow-gap semiconductor. C1 [Khaymovich, I. M.; Chtchelkatchev, N. M.; Vinokur, V. M.] Argonne Natl Lab, Argonne, IL 60439 USA. [Khaymovich, I. M.] Russian Acad Sci, Inst Phys Microstruct, Nizhnii Novgorod 603950, Russia. [Chtchelkatchev, N. M.] Russian Acad Sci, Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia. [Chtchelkatchev, N. M.] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117940, Russia. [Chtchelkatchev, N. M.] Moscow Inst Phys & Technol, Dept Theoret Phys, Moscow 141700, Russia. RP Khaymovich, IM (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Khaymovich, Ivan/F-2695-2013; Chtchelkatchev, Nikolay/L-1273-2013 OI Khaymovich, Ivan/0000-0003-2160-5984; Chtchelkatchev, Nikolay/0000-0002-7242-1483 FU U.S. Department of Energy Office of Science [DE-AC02-06CH11357]; Russian President Foundation [mk-7674.2010.2] FX We are grateful to R. Fazio and V. Vakaryuk for useful discussions. We thank A. Melnikov and N. Kopnin for enlightening and stimulating remarks and making their manuscript Ref. 25 available to us prior the publication. This work was supported by the U.S. Department of Energy Office of Science under Contract No. DE-AC02-06CH11357. The work of I.M.K. and N.M.C. was partially supported by the Russian President Foundation (mk-7674.2010.2) under the Federal program "Scientific and Educational Personnel of Innovative Russia." NR 28 TC 7 Z9 7 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 12 PY 2011 VL 84 IS 7 AR 075142 DI 10.1103/PhysRevB.84.075142 PG 6 WC Physics, Condensed Matter SC Physics GA 806SF UT WOS:000293830600004 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hartl, C Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Beauceron, S Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Vander Velde, C Vanlaer, P Wickens, J Adler, V Costantini, S Grunewald, M Klein, B Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L Gil, EC Delaere, C Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Damiao, DD Pol, ME Souza, MHG Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A De Araujo, TD Dias, FA Tomei, TRFP Gregores, EM Marinho, F Mercadante, PG Novaes, SF Padula, SS Darmenov, N Dimitrov, L Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vankov, I Dyulendarova, M Hadjiiska, R Kozhuharov, V Litov, L Marinova, E Mateev, M Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Meng, X Tao, J Wang, J Wang, J Wang, X Wang, Z Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhang, L Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Khalil, S Mahmoud, MA Hektor, A Kadastik, M Muntel, M Raidal, M Rebane, L Azzolini, V Eerola, P Czellar, S Harkonen, J Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P De Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, P Charlot, C Dahms, T Dobrzynski, L Elgammal, S de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Roxlo, T Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chanon, N Chierici, R Contardo, D Depasse, P El Mamouni, H Falkiewicz, A Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Xiao, H Megrelidze, L Lomidze, D Anagnostou, G Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Ata, M Bender, W Erdmann, M Frangenheim, J Hebbeker, T Hinzmann, A Hoepfner, K Hof, C Klimkovich, T Klingebiel, D Kreuzer, P Lanske, D Magass, C Masetti, G Merschmeyer, M Meyer, A Papacz, P Pieta, H Reithler, H Schmitz, SA Sonnenschein, L Steggemann, J Teyssier, D Tonutti, M Bontenackels, M Davids, M Duda, M Fluegge, G Geenen, H Giffels, M Ahmad, WH Heydhausen, D Kress, T Kuessel, Y Linn, A Nowack, A Perchalla, L Pooth, O Rennefeld, J Sauerland, P Stahl, A Thomas, M Tornier, D Zoeller, MH Martin, MA Behrenhoff, W Behrens, U Bergholz, M Borras, K Cakir, A Campbell, A Castro, E Dammann, D Eckerlin, G Eckstein, D Flossdorf, A Flucke, G Geiser, A Hauk, J Jung, H Kasemann, M Katkov, I Katsas, P Kleinwort, C Kluge, H Knutsson, A Kramer, M Krucker, D Kuznetsova, E Lange, W Lohmann, W Mankel, R Marienfeld, M Melzer-Pellmann, IA Meyer, AB Mnich, J Mussgiller, A Olzem, J Pitzl, D Raspereza, A Raval, A Rosin, M Schmidt, R Schoerner-Sadenius, T Sen, N Spiridonov, A Stein, M Tomaszewska, J Walsh, R Wissing, C Autermann, C Bobrovskyi, S Draeger, J Enderle, H Gebbert, U Kaschube, K Kaussen, G Lange, J Mura, B Naumann-Emme, S Nowak, F Pietsch, N Sander, C Schettler, H Schleper, P Schroder, M Schum, T Schwandt, J Stadie, H Steinbruck, G Thomsen, J Barth, C Bauer, J Buege, V Chwalek, T De Boer, W Dierlamm, A Dirkes, G Feindt, M Gruschke, J Hackstein, C Hartmann, F Heindl, SM Heinrich, M Held, H Hoffmann, KH Honc, S Kuhr, T Martschei, D Mueller, S Muller, T Niegel, M Oberst, O Oehler, A Ott, J Peiffer, T Piparo, D Quast, G Rabbertz, K Ratnikov, F Ratnikova, N Renz, M Saout, C Scheurer, A Schieferdecker, P Schilling, FP Schmanau, M Schott, G Simonis, HJ Stober, FM Troendle, D Wagner-Kuhr, J Weiler, T Zeise, M Zhukov, V Ziebarth, EB Daskalakis, G Geralis, T Karafasoulis, K Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I Markou, A Markou, C Mavrommatis, C Ntomari, E Petrakou, E Gouskos, L Mertzimekis, TJ Panagiotou, A Evangelou, I Foudas, C Kokkas, P Manthos, N Papadopoulos, I Patras, V Triantis, FA Aranyi, A Bencze, G Boldizsar, L Hajdu, C Hidas, P Horvath, D Kapusi, A Krajczar, K Sikler, F Veres, GI Vesztergombi, G Beni, N Molnar, J Palinkas, J Szillasi, Z Veszpremi, V Raics, P Trocsanyi, ZL Ujvari, B Bansal, S Beri, SB Bhatnagar, V Dhingra, N Gupta, R Jindal, M Kaur, M Kohli, JM Mehta, MZ Nishu, N Saini, LK Sharma, A Singh, AP Singh, JB Singh, SP Ahuja, S Bhattacharya, S Choudhary, BC Gupta, P Jain, S Jain, S Kumar, A Ranjan, K Shivpuri, RK Choudhury, RK Dutta, D Kailas, S Mohanty, AK Pant, LM Shukla, P Aziz, T Guchait, M Gurtu, A Maity, M Majumder, D Majumder, G Mazumdar, K Mohanty, GB Saha, A Sudhakar, K Wickramage, N Banerjee, S Dugad, S Mondal, NK Arfaei, H Bakhshiansohi, H Etesami, SM Fahim, A Hashemi, M Jafari, A Khakzad, M Mohammadi, A Najafabadi, MM Mehdiabadi, SP Safarzadeh, B Zeinali, M Abbrescia, M Barbone, L Calabria, C Colaleo, A Creanza, D De Filippis, N De Palma, M Dimitrov, A Fiore, L Iaselli, G Lusito, L Maggi, G Maggi, M Manna, N Marangelli, B My, S Nuzzo, S Pacifico, N Pierro, GA Pompili, A 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TI Observation and studies of jet quenching in PbPb collisions at root s(NN)=2.76 TeV SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; RADIATIVE ENERGY-LOSS; QUARK-GLUON PLASMA; RECONSTRUCTION; STAR; FRAGMENTATION; COLLABORATION; PERSPECTIVE; DENSITY; PARTONS AB Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the Compact Muon Solenoid (CMS) detector at the LHC, using a data sample corresponding to an integrated luminosity of 6.7 mu b(-1). Jets are reconstructed using the energy deposited in the CMS calorimeters and studied as a function of collision centrality. With increasing collision centrality, a striking imbalance in dijet transverse momentum is observed, consistent with jet quenching. The observed effect extends from the lower cutoff used in this study (jet p(T) = 120 GeV/c) up to the statistical limit of the available data sample (jet p(T) approximate to 210 GeV/c). Correlations of charged particle tracks with jets indicate that the momentum imbalance is accompanied by a softening of the fragmentation pattern of the second most energetic, away-side jet. The dijet momentum balance is recovered when integrating low transverse momentum particles distributed over a wide angular range relative to the direction of the away-side jet. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hartl, C.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kasieczka, G.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] Inst Hochenergiephys OeAW, Vienna, Austria. [Mossolov, V.; Shumeiko, N.; Gonzalez, J. 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[Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.] Univ Cyprus, Nicosia, Cyprus. [Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic. [Assran, Y.; Khalil, S.; Mahmoud, M. A.] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt. [Hektor, A.; Kadastik, M.; Muentel, M.; Raidal, M.; Rebane, L.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.; Czellar, S.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Harkonen, J.; Karimaki, V.; Kinnunen, R.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] CNRS, Lab Annecy le Vieux Phys Particules, IN2P3, Annecy Le Vieux, France. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; De Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, Gif Sur Yvette, France. [Baffioni, S.; Beaudette, F.; Benhabib, L.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dahms, T.; Dobrzynski, L.; Elgammal, S.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Roxlo, T.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.] CNRS, Lab Leprince Ringuet, Ecole Polytech, IN2P3, Palaiseau, France. [Agram, J. -L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A. -C.; Mikami, Y.; Van Hove, P.] Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, Univ Haute Alsace Mulhouse, CNRS,IN2P3, Strasbourg, France. [Fassi, F.; Mercier, D.] Ctr Calcul Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France. [Baty, C.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chanon, N.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Falkiewicz, A.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.; Xiao, H.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France. [Megrelidze, L.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia. [Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia. [Anagnostou, G.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Bender, W.; Erdmann, M.; Frangenheim, J.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Hof, C.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Magass, C.; Masetti, G.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.; Tonutti, M.] Rhein Westfal TH Aachen, Inst Phys 3 A, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Inst Phys 3 B, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Pitzl, D.; Raspereza, A.; Raval, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Autermann, C.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heindl, S. M.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schmanau, M.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Karafasoulis, K.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdu, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] INFN Sez Bari, Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] INFN Sez Bologna, Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] INFN Sez Catania, Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] INFN Sez Firenze, Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] INFN Lab Nazl Frascati, Frascati, Italy. [Fabbricatore, P.; Musenich, R.] INFN Sez Genova, Genoa, Italy. [De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] INFN Sez Milano Biccoca, Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] INFN Sez Napoli, Naples, Italy. [Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] INFN Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento, Padua, Italy. [Berzano, U.; Ratti, S. P.; Riccardi, C.; Vitulo, P.] INFN Sez Pavia, Pavia, Italy. [Ratti, S. P.; Riccardi, C.; Vitulo, P.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.] INFN Sez Perugia, Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] INFN Sez Pisa, Pisa, Italy. [Azzurri, P.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Bernardini, J.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] INFN Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; ArneodoA, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] INFN Sez Torino, Turin, Italy. [Amapane, N.; Arcidiacono, R.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [ArneodoA, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] INFN Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Univ & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De la Cruz-Burelo, E.; Lopez-Fernandez, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] Ctr Invest Estudios Avanzados IPN, Mexico City, DF, Mexico. [Moreno, S. Carrillo; Valencia, F. Vazquez] Univ Iberoamer, Mexico City, DF, Mexico. [Ibarguen, H. A. Salazar] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Linares, E. Casimiro; Pineda, A. Morelos; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Parracho, P. G. Ferreira; Gallinaro, M.; Musella, P.; Nayak, A.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Ershov, A.; Gribushin, A.; Kodolova, O.; Korotkikh, V.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Proskuryakov, A.; Sarycheva, L.; Savrin, V.; Snigirev, A.; Vardanyan, I.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Fac Phys, Belgrade, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Maestre, J. Alcaraz; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De la Cruz, B.; Peris, A. Delgado; Pardos, C. Diez; Vazquez, D. Dominguez; Bedoya, C. Fernandez; Ramos, J. P. Fernandez; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] Ctr Invest Energet Medioambien & Tecnol CIEMAT, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Menendez, J. Fernandez; Folgueras, S.; Caballero, I. Gonzalez; Iglesias, L. Lloret; Garcia, J. M. Vizan] Univ Oviedo, Oviedo, Spain. [Cifuentes, J. A. Brochero; Cabrillo, I. J.; Calderon, A.; Chamizo Llatas, M.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, Inst Fis Cantabria IFCA, CSIC, E-39005 Santander, Spain. [Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Macpherson, A.; Maeki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Polese, G.; Racz, A.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoeckli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Onig, S. K.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.] Paul Scherrer Inst, Villigen, Switzerland. [Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.; Aguilo, E.; Amsler, C.] ETH, Inst Particle Phys, Zurich, Switzerland. [Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, E. A.; Chen, K. H.; Chen, W. T.; Dutta, S.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] NTU, Taipei, Taiwan. [Adiguzel, A.; Demir, Z.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Ulmez, E. G.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hansen, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.; Belyaev, A.; Avetisyan, A.; Beretvas, A.; Anastassov, A.] Univ Bristol, Bristol, Avon, England. [Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.; Bainbridge, R.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; John, J. St.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.; Sanchez, M. Calderon De La Barca] Brown Univ, Providence, RI 02906 USA. [Breedon, R.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.; Anastassov, A.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92507 USA. [Avetisyan, A.; Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Urthwein, F. W.; Yagil, A.; Anastassov, A.] Univ Calif San Diego, La Jolla, CA 92037 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Das, S.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY 14850 USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06824 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL 32611 USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA 52242 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Das, S.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Johns Hopkins Univ, Baltimore, MD 21218 USA. [Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN 55455 USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL 60208 USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Adiguzel, A.; Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX 77251 USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; De Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14642 USA. [Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10065 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ 08854 USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN 37916 USA. [Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Osipenkov, I.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA. [Akchurin, N.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Issah, M.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN 37240 USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Buehler, M.; Conetti, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA 22904 USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI 48202 USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Flood, K.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA. [Hammer, J.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Mohanty, A. K.; Lusito, L.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Ghezzi, A.; Perrozzi, L.; Lucaroni, A.; Volpe, R.; Tonelli, G.; Venturi, A.; Botta, C.; Graziano, A.; Pelliccioni, M.; Pereira, A. Vilela; Kossov, M.; Grishin, V.; Nesvold, E.; Sharma, V.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Gregores, E. M.; Mercadante, P. G.; Spiropulu, M.] Univ Fed ABC, Santo Andre, Brazil. [Plestina, R.; Bernet, C.] CNRS, Lab Leprince Ringuet, Ecole Polytech, IN2P3, Palaiseau, France. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Khalil, S.] British Univ, Cairo, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Bluj, M.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Wyslouch, B.] MIT, Cambridge, MA 02139 USA. [Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.; Karim, M.] Univ Haute Alsace, Mulhouse, France. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. 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Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Krammer, Manfred/0000-0003-2257-7751; Katkov, Igor/0000-0003-3064-0466; Tomei, Thiago/0000-0002-1809-5226; Tinoco Mendes, Andre David/0000-0001-5854-7699; Stahl, Achim/0000-0002-8369-7506; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Varela, Joao/0000-0003-2613-3146; Ligabue, Franco/0000-0002-1549-7107; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; bianco, stefano/0000-0002-8300-4124; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255; Gonzi, Sandro/0000-0003-4754-645X; Levchenko, Petr/0000-0003-4913-0538; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619; Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario Livio/0000-0002-9918-1686; Bargassa, Pedrame/0000-0001-8612-3332; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Bilki, Burak/0000-0001-9515-3306; Lloret Iglesias, Lara/0000-0002-0157-4765; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350; Vilela Pereira, Antonio/0000-0003-3177-4626; Haj Ahmad, Wael/0000-0003-1491-0446; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Bean, Alice/0000-0001-5967-8674; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; 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Scodellaro, Luca/0000-0002-4974-8330; Calvo Alamillo, Enrique/0000-0002-1100-2963 FU Austrian Federal Ministry of Science and Research; Belgium Fonds de la Recherche Scientifique; Fonds voor Wetenschappelijk Onderzoek; CNPq; CAPES; FAPERJ; FAPESP; Bulgarian Ministry of Education and Science; CERN; Chinese Academy of Sciences; Ministry of Science and Technology; National Natural Science Foundation of China; Colombian Funding Agency (COLCIENCIAS); Croatian Ministry of Science, Education and Sport; Research Promotion Foundation, Cyprus; Estonian Academy of Sciences and NICPB; Academy of Finland; Finnish Ministry of Education; Helsinki Institute of Physics; Institut National de Physique Nucleaire et de Physique des Particules/CNRS; Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France; Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft; Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; General Secretariat for Research and Technology, Greece; National Scientific Research Foundation; National Office for Research and Technology, Hungary; Department of Atomic Energy; Department of Science and Technology, India; Institute for Studies in Theoretical Physics and Mathematics, Iran; Science Foundation, Ireland; Istituto Nazionale di Fisica Nucleare, Italy; Korean Ministry of Education, Science and Technology; NRF, Korea; Lithuanian Academy of Sciences; CINVESTAV; CONACYT; SEP; UASLP-FAI; Pakistan Atomic Energy Commission; State Commission for Scientific Research, Poland; Fundacao para a Ciencia e a Tecnologia, Portugal; JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); Ministry of Science and Technologies of the Russian Federation; Russian Ministry of Atomic Energy; Ministry of Science and Technological Development of Serbia; Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio, Spain; ETH Board; ETH Zurich; PSI; SNF; UniZH; Canton Zurich; SER; National Science Council, Taipei; Scientific and Technical Research Council of Turkey; Turkish Atomic Energy Authority; Science and Technology Facilities Council, UK; US Department of Energ; US National Science Foundation; Marie-Curie programme; European Research Council (European Union); Leventis Foundation; A.P. Sloan Foundation; Alexander von Humboldt Foundation; Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes. This work was supported by the Austrian Federal Ministry of Science and Research; the Belgium Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport; the Research Promotion Foundation, Cyprus; the Estonian Academy of Sciences and NICPB; the Academy of Finland, Finnish Ministry of Education, and Helsinki Institute of Physics; the Institut National de Physique Nucleaire et de Physique des Particules/CNRS, and Commissariat a l'Energie Atomique et aux Energies Alternatives/CEA, France; the Bundesministerium fur Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Office for Research and Technology, Hungary; the Department of Atomic Energy, and Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Pakistan Atomic Energy Commission; the State Commission for Scientific Research, Poland; the Fundacao para a Ciencia e a Tecnologia, Portugal; JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); the Ministry of Science and Technologies of the Russian Federation, and Russian Ministry of Atomic Energy; the Ministry of Science and Technological Development of Serbia; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the National Science Council, Taipei; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the Science and Technology Facilities Council, UK; the US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie programme and the European Research Council (European Union); the Leventis Foundation; the A.P. Sloan Foundation; the Alexander von Humboldt Foundation; the Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); and the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium). NR 54 TC 253 Z9 254 U1 10 U2 152 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD AUG 12 PY 2011 VL 84 IS 2 AR 024906 DI 10.1103/PhysRevC.84.024906 PG 26 WC Physics, Nuclear SC Physics GA 806VA UT WOS:000293841600001 ER PT J AU Helm, ML Stewart, MP Bullock, RM DuBois, MR DuBois, DL AF Helm, Monte L. Stewart, Michael P. Bullock, R. Morris DuBois, M. Rakowski DuBois, Daniel L. TI A Synthetic Nickel Electrocatalyst with a Turnover Frequency Above 100,000 s(-1) for H-2 Production SO SCIENCE LA English DT Article ID IRON-ONLY HYDROGENASE; MOLECULAR ELECTROCATALYSTS; LOW OVERPOTENTIALS; FUNCTIONAL MODELS; PROTON RELAYS; ACTIVE-SITE; COMPLEXES; EVOLUTION; REDUCTION; OXIDATION AB Reduction of acids to molecular hydrogen as a means of storing energy is catalyzed by platinum, but its low abundance and high cost are problematic. Precisely controlled delivery of protons is critical in hydrogenase enzymes in nature that catalyze hydrogen (H-2) production using earth-abundant metals (iron and nickel). Here, we report that a synthetic nickel complex, [Ni((P2NPh)-N-Ph)(2)](BF4)(2), ((P2NPh)-N-Ph = 1,3,6-triphenyl-1-aza-3,6-diphosphacycloheptane), catalyzes the production of H2 using protonated dimethylformamide as the proton source, with turnover frequencies of 33,000 per second (s(-1)) in dry acetonitrile and 106,000 s(-1) in the presence of 1.2 M of water, at a potential of -1.13 volt (versus the ferrocenium/ferrocene couple). The mechanistic implications of these remarkably fast catalysts point to a key role of pendant amines that function as proton relays. C1 [Helm, Monte L.; Stewart, Michael P.; Bullock, R. Morris; DuBois, M. Rakowski; DuBois, Daniel L.] Pacific NW Natl Lab, Ctr Mol Electrocatalysis, Chem & Mat Sci Div, Richland, WA 99352 USA. [Helm, Monte L.] Ft Lewis Coll, Dept Chem, Durango, CO 81301 USA. RP Bullock, RM (reprint author), Pacific NW Natl Lab, Ctr Mol Electrocatalysis, Chem & Mat Sci Div, POB 999,K2-57, Richland, WA 99352 USA. EM morris.bullock@pnnl.gov; daniel.dubois@pnnl.gov RI Bullock, R. Morris/L-6802-2016 OI Bullock, R. Morris/0000-0001-6306-4851 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; U.S. Department of Energy FX This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy. Structural parameters for 4 are available free of charge from the Cambridge Crystallographic Data Centre under CCDC 828010. We thank J. A. S. Roberts for help with the simulations of the cyclic voltammograms. NR 29 TC 449 Z9 449 U1 32 U2 359 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD AUG 12 PY 2011 VL 333 IS 6044 BP 863 EP 866 DI 10.1126/science.1205864 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 806DJ UT WOS:000293785400036 PM 21836012 ER PT J AU Kostka, J Gritti, F Kaczmarski, K Guiochon, G AF Kostka, Joanna Gritti, Fabrice Kaczmarski, Krzysztof Guiochon, Georges TI Modified Equilibrium-Dispersive Model for the interpretation of the efficiency of columns packed with core-shell particle SO JOURNAL OF CHROMATOGRAPHY A LA English DT Article DE Shell particles; Column efficiency; HETP; Apparent and axial dispersion; Van Deemter plot; Peak profiles ID PRESSURE LIQUID-CHROMATOGRAPHY; THERMAL-PROCESSES; MASS-TRANSFER; HETEROGENEITY; COEFFICIENTS; PERFORMANCE AB A modified Equilibrium Dispersive (ED) Model is proposed for the modeling of chromatographic processes in columns packed with shell-particle adsorbents and operated under very high pressures. This new model was validated on the basis of experimental results obtained with 2.1 min x 150 mm columns packed with superficially porous 1.7 mu m Kinetex-C(18) particles and with classical columns packed with 1.7 mu m BEH-C(18) fully porous particles. The influence of the heat friction on the performance of these columns was analyzed by comparing the experimental and calculated peak profiles. Moreover a theoretical analysis of the influence the solid-core conductivity on the column efficiency was discussed. (C) 2011 Elsevier B.V. All rights reserved. C1 [Kostka, Joanna; Kaczmarski, Krzysztof] Rzeszow Univ Technol, Dept Chem & Proc Engn, PL-35959 Rzeszow, Poland. [Gritti, Fabrice; Guiochon, Georges] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Gritti, Fabrice; Guiochon, Georges] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Kaczmarski, K (reprint author), Rzeszow Univ Technol, Dept Chem & Proc Engn, PL-35959 Rzeszow, Poland. EM kkaczmarski@prz.edu.pl; guiochon@utk.edu FU Polish Ministry of Science and Higher Education [N204 002036]; European Social Fund; Polish National Budget; Podkarpackie Voivodship Budget (within Sectoral Operational Program Human Resources) "Wzmocnienie instytucjonalnego systemu wdrazania Regionalnej Strategii Innowacji w Iatach) FX This work was partially supported by grant no. N204 002036 of the Polish Ministry of Science and Higher Education. Financial support from the European Social Fund, Polish National Budget, Podkarpackie Voivodship Budget (within Sectoral Operational Program Human Resources) "Wzmocnienie instytucjonalnego systemu wdrazania Regionalnej Strategii Innowacji w Iatach 2007-2013" is gratefully acknowledged. NR 19 TC 7 Z9 9 U1 1 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0021-9673 J9 J CHROMATOGR A JI J. Chromatogr. A PD AUG 12 PY 2011 VL 1218 IS 32 BP 5449 EP 5455 DI 10.1016/j.chroma.2011.06.019 PG 7 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA 802AP UT WOS:000293482000009 PM 21737086 ER PT J AU Bergmair, I Dastmalchi, B Bergmair, M Saeed, A Hilber, W Hesser, G Helgert, C Pshenay-Severin, E Pertsch, T Kley, EB Hubner, U Shen, NH Penciu, R Kafesaki, M Soukoulis, CM Hingerl, K Muehlberger, M Schoeftner, R AF Bergmair, I. Dastmalchi, B. Bergmair, M. Saeed, A. Hilber, W. Hesser, G. Helgert, C. Pshenay-Severin, E. Pertsch, T. Kley, E. B. Huebner, U. Shen, N. H. Penciu, R. Kafesaki, M. Soukoulis, C. M. Hingerl, K. Muehlberger, M. Schoeftner, R. TI Single and multilayer metamaterials fabricated by nanoimprint lithography SO NANOTECHNOLOGY LA English DT Article ID INDEX; FREQUENCIES AB We demonstrate for the first time a fast and easy nanoimprint lithography (NIL) based stacking process of negative index structures like fishnet and Swiss-cross metamaterials. The process takes a few seconds, is cheap and produces three-dimensional (3D) negative index materials (NIMs) on a large area which is suitable for mass production. It can be performed on all common substrates even on flexible plastic foils. This work is therefore an important step toward novel and breakthrough applications of NIMs such as cloaking devices, perfect lenses and magnification of objects using NIM prisms. The optical properties of the fabricated samples were measured by means of transmission and reflection spectroscopy. From the measured data we retrieved the effective refractive index which is shown to be negative for a wavelength around 1.8 mu m for the fishnet metamaterial while the Swiss-cross metamaterial samples show a distinct resonance at wavelength around 1.4 mu m. C1 [Bergmair, I.; Muehlberger, M.; Schoeftner, R.] PROFACTOR GmbH, Funct Surfaces & Nanostruct, A-4407 Steyr Gleink, Austria. [Dastmalchi, B.; Bergmair, M.; Saeed, A.; Hesser, G.; Hingerl, K.] Johannes Kepler Univ Linz, Ctr Surface & Nanoanalyt, A-4040 Linz, Austria. [Hilber, W.] Johannes Kepler Univ Linz, Inst Microelect & Microsensors, A-4040 Linz, Austria. [Helgert, C.; Pshenay-Severin, E.; Pertsch, T.; Kley, E. B.] Univ Jena, Inst Appl Phys, D-07743 Jena, Germany. [Huebner, U.] Inst Photon Technol, D-07743 Jena, Germany. [Shen, N. H.; Soukoulis, C. M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Shen, N. H.; Soukoulis, C. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Penciu, R.; Kafesaki, M.; Soukoulis, C. M.] Univ Crete, Fdn Res Technol Hellas FORTH, Inst Elect Struct & Laser, Iraklion 71110, Crete, Greece. RP Bergmair, I (reprint author), PROFACTOR GmbH, Funct Surfaces & Nanostruct, Stadtgut A2, A-4407 Steyr Gleink, Austria. EM iris.bergmair@profactor.at RI Schoftner, Rainer/C-6652-2009; Helgert, Christian/C-2662-2009; Muhlberger, Michael/A-6586-2010; Shen, Nianhai/E-5543-2012; Kafesaki, Maria/E-6843-2012; Helgert, Christian/B-1061-2012; Soukoulis, Costas/A-5295-2008; Pertsch, Thomas/M-2876-2015; Dastmalchi, Babak/C-9050-2013 OI Kafesaki, Maria/0000-0002-9524-2576; Pertsch, Thomas/0000-0003-4889-0869; Dastmalchi, Babak/0000-0002-2701-3712 FU European Community [228637 NIM_NIL]; bmvit; Austrian NANO Initiative; NILmeta Project within the NILaustria Project cluster; Department of Energy (Basic Energy Sciences) [DE-AC02-07CH11358] FX The authors acknowledge funding by the European Community's 7th Framework Programme under grant agreement no. 228637 NIM_NIL (www.nimnil.org). The Austrian authors acknowledge additional support by bmvit and the Austrian NANO Initiative (FFG and bmvit) for funding this work partially by the NILmeta Project within the NILaustria Project cluster (www.NILaustria.at). Work at Ames Laboratory was supported by the Department of Energy (Basic Energy Sciences) under contract no. DE-AC02-07CH11358. The authors are grateful for the possibility to use the equipment of the Institute of Semiconductor and Solid State Physics, Johannes Kepler University Linz. NR 21 TC 35 Z9 35 U1 6 U2 43 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0957-4484 J9 NANOTECHNOLOGY JI Nanotechnology PD AUG 12 PY 2011 VL 22 IS 32 AR 325301 DI 10.1088/0957-4484/22/32/325301 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 794WG UT WOS:000292931400003 PM 21757794 ER PT J AU Kellett, MA Be, MM Chechev, V Huang, XL Kondev, FG Luca, A Mukherjee, C Nichols, AL Pearce, A AF Kellett, M. A. Be, M-M. Chechev, V. Huang, Xiaolong Kondev, F. G. Luca, A. Mukherjee, C. Nichols, A. L. Pearce, A. TI New IAEA Actinide Decay Data Library SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE IAEA; CRP; DDEP; Actinide; Decay data; Evaluation; Compilation ID HALF-LIFE AB A recently completed IAEA Coordinated Research Project (CRP) entitled "Updated Decay Data Library for Actinides" has resulted in new and comprehensive evaluations of the decay scheme data for over forty nuclear-power related actinides, along with a further forty radionuclides that arise from their natural decay. A number of data inadequacies remain despite a series of well-defined measurements being undertaken under the auspices of this CRP, which were subsequently incorporated into the relevant evaluations. A list is given of these outstanding measurement requirements as identified from observed shortcomings in the available data. The final data library is available in two standard formats: ENSDF for use in nuclear structure studies, and ENDF for nuclear plant applications including design and operation. Evaluations were undertaken by following the precise methodology of the Decay Data Evaluation Project (DDEP) to ensure that a uniform approach was applied by all participants. The library and associated documentation are available from a dedicated IAEA webpage (http://www-nds.iaea.org/act_ddl/). C1 [Kellett, M. A.; Nichols, A. L.] IAEA, Nucl Data Sect, Vienna Int Ctr, A-1400 Vienna, Austria. [Be, M-M.] CEA, Ctr Etud Saclay, Lab Natl Henri Becquerel, F-91191 Gif Sur Yvette, France. [Chechev, V.] VG Khlopin Radium Inst, Dept Isotope, St Petersburg 194021, Russia. [Huang, Xiaolong] China Inst Atom Energy, China Nucl Data Ctr, Beijing 102413, Peoples R China. [Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA. [Luca, A.] IFIN HH Radionuclide Metrol Lab, Magurele 077125, Ilfov County, Romania. [Mukherjee, C.] Ctr Variable Energy Cyclotron, Div Phys, Kolkata 700064, W Bengal, India. [Pearce, A.] Natl Phys Lab, Teddington TW11 OLW, Middx, England. RP Kellett, MA (reprint author), IAEA, Nucl Data Sect, Vienna Int Ctr, A-1400 Vienna, Austria. EM m.a.kellett@iaea.org RI Luca, Aurelian/A-3645-2011 FU US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357] FX The work of F.G. Kondev was supported by the US Department of Energy, Office of Nuclear Physics, under contract no. DE-AC02-06CH11357. NR 19 TC 10 Z9 10 U1 0 U2 3 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 EI 1976-8524 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1455 EP 1460 DI 10.3938/jkps.59.1455 PN 3 PG 6 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700001 ER PT J AU Sleaford, BW Summers, N Escher, J Firestone, RB Basunia, S Hurst, A Krticka, M Molnar, G Belgya, T Revay, Z Choi, HD AF Sleaford, B. W. Summers, N. Escher, J. Firestone, R. B. Basunia, S. Hurst, A. Krticka, M. Molnar, G. Belgya, T. Revay, Zs Choi, H. D. TI Capture Gamma-ray Libraries for Nuclear Applications SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE ND2010; Nuclear data; ENDF ID ELEMENTS AB The neutron capture reaction is useful in identifying and analyzing the gamma-ray spectrum from an unknown assembly as it gives unambiguous information on its composition. This can be done passively or actively where an external neutron source is used to probe an unknown assembly. There are known capture gamma-ray data gaps in the ENDS libraries used by transport codes for various nuclear applications. The Evaluated Gamma-ray Activation file (EGAF) is a new thermal neutron capture database of discrete line spectra and cross sections for over 260 isotopes that was developed as part of an IAEA Coordinated Research Project. EGAF has been used to improve the capture gamma production in ENDF libraries. For medium to heavy nuclei the quasi continuum contribution to the gamma cascades is not; experimentally resolved. The continuum contains up to 90% of all the decay energy and is modeled here with the statistical nuclear structure code DICEBOX. This code also provides a consistency check of the level scheme nuclear structure evaluation. The calculated continuum is of sufficient accuracy to include in the ENDF libraries. This analysis also determines new total thermal capture cross sections and provides an improved RIPL database. For higher energy neutron capture there is less experimental data. available making benchmarking of the modeling codes more difficult. We use CASINO, a version of DICEBOX that is modified for this purpose. This can be used to simulate the neutron capture at incident neutron energies up to 20 MeV to improve the gamma-ray spectrum in neutron data, libraries used for transport; modeling of unknown assemblies. C1 [Sleaford, B. W.; Summers, N.; Escher, J.; Hurst, A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Firestone, R. B.; Basunia, S.; Hurst, A.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Krticka, M.] Charles Univ Prague, Fac Math & Phys, CZ-18000 Prague 8, Czech Republic. [Molnar, G.; Belgya, T.; Revay, Zs] Inst Isotope & Surface Chem, H-1525 Budapest, Hungary. [Choi, H. D.] Seoul Natl Univ, Seoul, South Korea. RP Sleaford, BW (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM sleaford1@llnl.gov RI Escher, Jutta/E-1965-2013; OI Firestone, Richard/0000-0003-3833-5546 FU U.S Department of Energy by the University of California; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Lawrence Livermore National Laboratory [W-7505-Eng-48]; [DE-FG52-06NA26194] FX This work was performed under the auspices of the U.S Department of Energy by the University of California, supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy at Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231 and at Lawrence Livermore National Laboratory under Contract W-7505-Eng-48. Support was also provided by National Nuclear Security Administration Academic Alliance Grant No. DE-FG52-06NA26194 and by the research plan MSM 002 162 0859 supplied by the Ministry of Education of the Czech Republic. NR 25 TC 0 Z9 0 U1 0 U2 11 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1473 EP 1478 DI 10.3938/jkps.59.1473 PN 3 PG 6 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700004 ER PT J AU Algora, A Jordan, D Tain, JL Rubio, B Agramunt, J Caballero, L Nacher, E Perez-Cerdan, AB Molina, F Krasznahorkay, A Hunyadi, MD Gulyas, J Vitez, A Csatlos, M Csige, L Aysto, J Penttila, H Rinta-Antila, S Moore, I Eronen, T Jokinen, A Nieminen, A Hakala, J Karvonen, P Kankainen, A Hager, U Sonoda, T Saastamoinen, A Rissanen, J Kessler, T Weber, C Ronkainen, J Rahaman, S Elomaa, V Burkard, K Huller, W Batist, L Gelletly, W Yoshida, T Nichols, AL Sonzogni, A Perajarvi, K AF Algora, A. Jordan, D. Tain, J. L. Rubio, B. Agramunt, J. Caballero, L. Nacher, E. Perez-Cerdan, A. B. Molina, F. Krasznahorkay, A. Hunyadi, M. D. Gulyas, J. Vitez, A. Csatlos, M. Csige, L. Aysto, J. Penttila, H. Rinta-Antila, S. Moore, I. Eronen, T. Jokinen, A. Nieminen, A. Hakala, J. Karvonen, P. Kankainen, A. Hager, U. Sonoda, T. Saastamoinen, A. Rissanen, J. Kessler, T. Weber, C. Ronkainen, J. Rahaman, S. Elomaa, V. Burkard, K. Hueller, W. Batist, L. Gelletly, W. Yoshida, T. Nichols, A. L. Sonzogni, A. Perajarvi, K. TI Improvements on Decay Heat Summation Calculations by Means of Total Absorption Gamma-ray Spectroscopy Measurements SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Decay heat; Total absorption; Trap-assisted spectroscopy ID BETA-DECAY; SIMULATION; SPECTRA AB The decay heat of fission products plays an important role in predictions of the heat released by nuclear fuel in reactors. In this contribution we present results of the analysis of the measurement of the beta decay of some refractory isotopes that were considered possible important contributors to the decay heat in reactors. The measurements presented here were performed at the IGISOL facility of the University of Jyvaskyla, Finland. In our measurements we have combined for the first time a Penning trap (JYFLTRAP), which was used as a high resolution isobaric separator, with a total absorption spectrometer. The results of the measurements as well as their consequences for decay heat summation calculations are discussed. C1 [Algora, A.; Jordan, D.; Tain, J. L.; Rubio, B.; Agramunt, J.; Caballero, L.; Nacher, E.; Perez-Cerdan, A. B.; Molina, F.] Univ Valencia, CSIC, IFIC, Valencia, Spain. [Krasznahorkay, A.; Hunyadi, M. D.; Gulyas, J.; Vitez, A.; Csatlos, M.; Csige, L.] Inst Nucl Res, H-4001 Debrecen, Hungary. [Aysto, J.; Penttila, H.; Rinta-Antila, S.; Moore, I.; Eronen, T.; Jokinen, A.; Nieminen, A.; Hakala, J.; Karvonen, P.; Kankainen, A.; Hager, U.; Sonoda, T.; Saastamoinen, A.; Rissanen, J.; Kessler, T.; Weber, C.; Ronkainen, J.; Rahaman, S.; Elomaa, V.] Univ Jyvaskyla, Jyvaskyla, Finland. [Burkard, K.; Hueller, W.] GSI Darmstadt, D-6100 Darmstadt, Germany. [Batist, L.] PNPI, Gatchina, Russia. [Gelletly, W.] Univ Surrey, Guildford GU2 5XH, Surrey, England. [Yoshida, T.] Tokyo City Univ, Tokyo, Japan. [Nichols, A. L.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Sonzogni, A.] Brookhaven Natl Lab, NNDC, Upton, NY 11973 USA. [Perajarvi, K.] STUK, Helsinki, Finland. RP Algora, A (reprint author), Univ Valencia, CSIC, IFIC, Valencia, Spain. EM algora@ific.uv.es RI Penttila, Heikki/A-4420-2013; Tain, Jose L./K-2492-2014; Kankainen, Anu/K-3448-2014; Nacher, Enrique/G-2257-2010; Rubio, Berta/M-1060-2014; Algora, Alejandro/E-2960-2015; Moore, Iain/D-7255-2014; Caballero, Luis/M-1304-2015; Hager, Ulrike/O-1738-2016; Molina, Francisco/D-5319-2014; Jokinen, Ari/C-2477-2017; OI Kankainen, Anu/0000-0003-1082-7602; Nacher, Enrique/0000-0002-2123-539X; Rubio, Berta/0000-0002-9149-4151; Algora, Alejandro/0000-0002-5199-1794; Moore, Iain/0000-0003-0934-8727; Caballero, Luis/0000-0002-1635-5282; Molina, Francisco/0000-0002-9459-1336; Jokinen, Ari/0000-0002-0451-125X; Rinta-Antila, Sami/0000-0003-4198-1960 FU Spanish FPA [2005-03993, FPA2008-06419-C02-01]; OTKA [K72566]; EC [MERG-CT-2004-506849]; EU [506065 (EURONS)]; Spanish-Hungarian collaboration program FX This work was supported by the following projects: Spanish FPA 2005-03993 and FPA2008-06419-C02-01; OTKA K72566; the EC contract MERG-CT-2004-506849, the EU 6th Fram. Program (contract No: 506065 (EURONS) and the Spanish-Hungarian collaboration program. NR 19 TC 1 Z9 1 U1 0 U2 14 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1479 EP 1482 DI 10.3938/jkps.59.1479 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700005 ER PT J AU Hurst, AM Summers, NC Sleaford, BW Firestone, RB Belgya, T Revay, ZS AF Hurst, A. M. Summers, N. C. Sleaford, B. W. Firestone, R. B. Belgya, T. Revay, Z. S. TI Gamma Spectrum from Neutron Capture on Tungsten Isotopes SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE W-183,W-184,W-185,W-187; gamma-ray cross sections; Neutron capture; EGAF; DICEBOX; Level density; Photon strength function AB An evaluation of thermal neutron capture on the stable tungsten isotopes is presented, with preliminary results for the compound systems W-183,W-184,W-185,W-187. The evaluation procedure compares the gamma-ray cross-section data collected at the Budapest reactor, with Monte Carlo simulations of gamma-ray emission following the thermal neutron-capture process. The statistical-decay code DICEBOX was used for the Monte Carlo simulations. The evaluation yields new gamma rays in W-185 and the confirmation of spins in W-187, raising the number of levels below which the level schemes are considered complete, thus increasing the number of levels that can be used in neutron data libraries. C1 [Hurst, A. M.; Summers, N. C.; Sleaford, B. W.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Hurst, A. M.; Firestone, R. B.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Belgya, T.; Revay, Z. S.] Inst Isotope & Surface Chem, H-1525 Budapest, Hungary. RP Hurst, AM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM AMHurst@lbl.gov OI Firestone, Richard/0000-0003-3833-5546 FU U. S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; University of California; Office of Science, Office of Basic Energy Sciences, of the U. S. Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231] FX This work was performed under the auspices of the U. S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, and by the University of California, supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U. S. Department of Energy at Lawrence Berkeley National Laboratory under Contract DE-AC02-05CH11231. NR 15 TC 1 Z9 1 U1 0 U2 9 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1491 EP 1494 DI 10.3938/jkps.59.1491 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700008 ER PT J AU Guerrero, C Alvarez-Velarde, F Ano-Ott, DC Martinez, T Mendoza, E Villamarin, D Colonna, N Meaze, MH Marrone, S Tagliente, G Terlizzi, R Belloni, F Abbondanno, U Fujii, K Milazzo, PM Moreau, C Aerts, G Berthoumieux, E Dridi, W Gunsing, F Pancin, J Perrot, L Plukis, A Alvarez, H Duran, I Paradela, C Andriamonje, S Calviani, M Chiaveri, E Gonzalez-Romero, E Kadi, Y Vicente, MC Vlachoudis, V Andrzejewski, J Marganiec, J Assimakopoulos, P Karadimos, D Karamanis, D Papachristodoulou, C Patronis, N Audouin, L David, S Ferrant, L Isaev, S Stephan, C Tassan-Got, L Badurek, G Jericha, E Leeb, H Oberhummer, H Pigni, MT Baumann, P Kerveno, M Lukic, S Rudolf, G Becvar, F Krticka, M Calvino, F Capote, R De Albornoz, AC Marques, L Salgado, J Tavora, L Vaz, P Cennini, P Dahlfors, M Ferrari, A Gramegna, F Herrera-Martinez, A Mastinu, P Praena, J Sarchiapone, L Wendler, H Chepel, V Ferreira-Marques, R Goncalves, I Lindote, A Lopes, I Neves, F Cortes, G Poch, A Pretel, C Couture, A Cox, J O'Brien, S Wiescher, M Dillman, I Kappeler, F Mosconi, M Plag, R Voss, F Walter, S Wisshak, K Dolfini, R Rubbia, C Domingo-Pardo, C Tain, JL Eleftheriadis, C Savvidis, I Frais-Koelbl, H Griesmayer, E Furman, W Konovalov, V Goverdovski, A Ketlerov, V Haas, B Haight, R Reifarth, R Heil, M Igashira, M Koehler, P Kossionides, E Lampoudis, C Lozano, M Quesada, J Massimi, C Vannini, G Mengoni, A Oshima, M Papadopoulos, C Vlastou, R Pavlik, A Pavlopoulos, P Plompen, A Rullhusen, P Rauscher, T Rosetti, M Ventura, A AF Guerrero, C. Alvarez-Velarde, F. Cano-Ott, D. Martinez, T. Mendoza, E. Villamarin, D. Colonna, N. Meaze, M. H. Marrone, S. Tagliente, G. Terlizzi, R. Belloni, F. Abbondanno, U. Fujii, K. Milazzo, P. M. Moreau, C. Aerts, G. Berthoumieux, E. Dridi, W. Gunsing, F. Pancin, J. Perrot, L. Plukis, A. Alvarez, H. Duran, I. Paradela, C. Andriamonje, S. Calviani, M. Chiaveri, E. Gonzalez-Romero, E. Kadi, Y. Vicente, M. C. Vlachoudis, V. Andrzejewski, J. Marganiec, J. Assimakopoulos, P. Karadimos, D. Karamanis, D. Papachristodoulou, C. Patronis, N. Audouin, L. David, S. Ferrant, L. Isaev, S. Stephan, C. Tassan-Got, L. Badurek, G. Jericha, E. Leeb, H. Oberhummer, H. Pigni, M. T. Baumann, P. Kerveno, M. Lukic, S. Rudolf, G. Becvar, F. Krticka, M. Calvino, F. Capote, R. De Albornoz, A. Carrillo Marques, L. Salgado, J. Tavora, L. Vaz, P. Cennini, P. Dahlfors, M. Ferrari, A. Gramegna, F. Herrera-Martinez, A. Mastinu, P. Praena, J. Sarchiapone, L. Wendler, H. Chepel, V. Ferreira-Marques, R. Goncalves, I. Lindote, A. Lopes, I. Neves, F. Cortes, G. Poch, A. Pretel, C. Couture, A. Cox, J. O'Brien, S. Wiescher, M. Dillman, I. Kaeppeler, F. Mosconi, M. Plag, R. Voss, F. Walter, S. Wisshak, K. Dolfini, R. Rubbia, C. Domingo-Pardo, C. Tain, J. L. Eleftheriadis, C. Savvidis, I. Frais-Koelbl, H. Griesmayer, E. Furman, W. Konovalov, V. Goverdovski, A. Ketlerov, V. Haas, B. Haight, R. Reifarth, R. Heil, M. Igashira, M. Koehler, P. Kossionides, E. Lampoudis, C. Lozano, M. Quesada, J. Massimi, C. Vannini, G. Mengoni, A. Oshima, M. Papadopoulos, C. Vlastou, R. Pavlik, A. Pavlopoulos, P. Plompen, A. Rullhusen, P. Rauscher, T. Rosetti, M. Ventura, A. CA N TOF Collaboration TI Study of Photon Strength Function of Actinides: the Case of U-235, Np-238 and Pu-241 SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Photon/Gamma strength functions; Pygmy; Scissor mode; n_TOF; Total absorption calorimeter; TAC; Neutron capture ID SPECTRA; SYSTEMATICS; PARAMETER; RESONANCE; NUCLEI AB The decay from excited levels in medium and heavy nuclei can be described in a statistical approach by means of Photon Strength Functions and Level Density distributions. The study of electromagnetic cascades following neutron capture based on the use of high efficiency detectors has been shown to be well suited for probing the properties of the Photon Strength Function of heavy (high level density) and/or radioactive (high background) nuclei. In this work we have investigated for the first time the validity of the recommended PSF of actinides, in particular U-235, Np-238 and Pu-241. Our study includes the search for resonance structures in the PSF below S-n and draws conclusions regarding their existence and their characteristics in terms of energy, width and electromagnetic nature. C1 [Guerrero, C.; Alvarez-Velarde, F.; Cano-Ott, D.; Martinez, T.; Mendoza, E.; Villamarin, D.] Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain. [Colonna, N.; Meaze, M. H.; Marrone, S.; Tagliente, G.; Terlizzi, R.] Ist Nazl Fis Nucl, I-70126 Bari, Italy. [Belloni, F.; Abbondanno, U.; Fujii, K.; Milazzo, P. M.; Moreau, C.] Ist Nazl Fis Nucl, Trieste, Italy. [Aerts, G.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A.; Lampoudis, C.] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France. [Alvarez, H.; Duran, I.; Paradela, C.] Univ Santiago de Compostela, Santiago De Compostela, Spain. [Andriamonje, S.; Calviani, M.; Chiaveri, E.; Gonzalez-Romero, E.; Kadi, Y.; Vicente, M. C.; Vlachoudis, V.] CERN, Geneva, Switzerland. [Andrzejewski, J.; Marganiec, J.] Univ Lodz, PL-90131 Lodz, Poland. [Assimakopoulos, P.; Karadimos, D.; Karamanis, D.; Papachristodoulou, C.; Patronis, N.] Univ Ioannina, GR-45110 Ioannina, Greece. [Audouin, L.; David, S.; Ferrant, L.; Isaev, S.; Stephan, C.; Tassan-Got, L.] CNRS, IN2P3, IPN, F-91405 Orsay, France. [Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Pigni, M. T.] Vienna Univ Technol, Atominst Osterreich Univ, Vienna, Austria. [Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.] CNRS, IN2P3, IReS, Strasbourg, France. [Becvar, F.; Krticka, M.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic. [Calvino, F.] Univ Politecn Madrid, E-28040 Madrid, Spain. [Capote, R.; Frais-Koelbl, H.; Griesmayer, E.; Mengoni, A.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Capote, R.; Lozano, M.; Quesada, J.] Univ Seville, Seville, Spain. [De Albornoz, A. Carrillo; Marques, L.; Salgado, J.; Tavora, L.; Vaz, P.] Inst Tecnol & Nucl ITN, Lisbon, Portugal. [Cennini, P.; Dahlfors, M.; Ferrari, A.; Gramegna, F.; Herrera-Martinez, A.; Mastinu, P.; Praena, J.; Sarchiapone, L.; Wendler, H.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Laquila, Italy. [Chepel, V.; Ferreira-Marques, R.; Goncalves, I.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, LIP Coimbra, P-3000 Coimbra, Portugal. [Chepel, V.; Ferreira-Marques, R.; Goncalves, I.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, Dept Fis, P-3000 Coimbra, Portugal. [Cortes, G.; Poch, A.; Pretel, C.] Univ Politecn Cataluna, Barcelona, Spain. [Couture, A.; Cox, J.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Dillman, I.; Kaeppeler, F.; Mosconi, M.; Plag, R.; Voss, F.; Walter, S.; Wisshak, K.; Heil, M.] Forschungszentrum Karlsruhe GmbH F2K, Inst Kernphys, Karlsruhe, Germany. [Dolfini, R.; Rubbia, C.] Univ Pavia, I-27100 Pavia, Italy. [Domingo-Pardo, C.; Tain, J. L.] Univ Valencia, CSIC, Inst Fs Corpuscular, E-46003 Valencia, Spain. [Eleftheriadis, C.; Savvidis, I.; Lampoudis, C.] Aristotle Univ Thessaloniki, Thessaloniki, Greece. [Furman, W.; Konovalov, V.] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna, Russia. [Goverdovski, A.; Ketlerov, V.] Inst Phys & Power Engn, Obninsk, Russia. [Haas, B.] CNRS, IN2P3, CENBG, Bordeaux, France. [Haight, R.; Reifarth, R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Igashira, M.] Tokyo Inst Technol, Tokyo 152, Japan. [Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Kossionides, E.] NCSR, Athens, Greece. [Massimi, C.; Vannini, G.] Univ Bologna, Dipartimento Fis, Sez INFN Bologna, I-40126 Bologna, Italy. [Mengoni, A.; Rosetti, M.; Ventura, A.] ENEA, Bologna, Italy. [Oshima, M.] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan. [Papadopoulos, C.; Vlastou, R.] Natl Tech Univ Athens, GR-10682 Athens, Greece. [Pavlik, A.] Univ Vienna, Inst Isotopenforsch & Kernphys, A-1010 Vienna, Austria. [Pavlopoulos, P.] Pole Univ Leonard de Vinci, Paris, France. [Plompen, A.; Rullhusen, P.] CEC JRC IRMM, Geel, Belgium. [Rauscher, T.] Univ Basel, Dept Phys & Astron, Basel, Switzerland. RP Guerrero, C (reprint author), Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain. EM carlos.guerrero@ciemat.es RI Mendoza Cembranos, Emilio/K-5789-2014; Guerrero, Carlos/L-3251-2014; Gonzalez Romero, Enrique/L-7561-2014; Pretel Sanchez, Carme/L-8287-2014; Martinez, Trinitario/K-6785-2014; Capote Noy, Roberto/M-1245-2014; Massimi, Cristian/B-2401-2015; Duran, Ignacio/H-7254-2015; Alvarez Pol, Hector/F-1930-2011; Massimi, Cristian/K-2008-2015; Paradela, Carlos/J-1492-2012; Gramegna, Fabiana/B-1377-2012; Calvino, Francisco/K-5743-2014; Mengoni, Alberto/I-1497-2012; Becvar, Frantisek/D-3824-2012; Jericha, Erwin/A-4094-2011; Chepel, Vitaly/H-4538-2012; Tain, Jose L./K-2492-2014; Cano Ott, Daniel/K-4945-2014; Quesada Molina, Jose Manuel/K-5267-2014; Ventura, Alberto/B-9584-2011; Rauscher, Thomas/D-2086-2009; Lindote, Alexandre/H-4437-2013; Neves, Francisco/H-4744-2013; Goncalves, Isabel/J-6954-2013; Vaz, Pedro/K-2464-2013; Lopes, Isabel/A-1806-2014; OI Mendoza Cembranos, Emilio/0000-0002-2843-1801; Guerrero, Carlos/0000-0002-2111-546X; Gonzalez Romero, Enrique/0000-0003-2376-8920; Martinez, Trinitario/0000-0002-0683-5506; Capote Noy, Roberto/0000-0002-1799-3438; Massimi, Cristian/0000-0001-9792-3722; Alvarez Pol, Hector/0000-0001-9643-6252; Massimi, Cristian/0000-0003-2499-5586; Gramegna, Fabiana/0000-0001-6112-0602; Calvino, Francisco/0000-0002-7198-4639; Mengoni, Alberto/0000-0002-2537-0038; Pavlik, Andreas/0000-0001-7526-3372; Goncalves, Isabel/0000-0002-1997-955X; Chepel, Vitaly/0000-0003-0675-4586; Lozano Leyva, Manuel Luis/0000-0003-2853-4103; Domingo-Pardo, Cesar/0000-0002-2915-5466; Jericha, Erwin/0000-0002-8663-0526; Cano Ott, Daniel/0000-0002-9568-7508; Quesada Molina, Jose Manuel/0000-0002-2038-2814; Ventura, Alberto/0000-0001-6748-7931; Rauscher, Thomas/0000-0002-1266-0642; Lindote, Alexandre/0000-0002-7965-807X; Neves, Francisco/0000-0003-3635-1083; Vaz, Pedro/0000-0002-7186-2359; Lopes, Isabel/0000-0003-0419-903X; Marques, Rui/0000-0003-3549-8198 FU Spanish grants [FPA2005-06918-C03-01, CSD-2007-00042]; ENRESA under the CIEMAT-ENRESA; European Commission [FI6W-CT-2004-516520] FX This work was partially supported by Spanish FPA2005-06918-C03-01 and CSD-2007-00042. grants, by ENRESA under the CIEMAT-ENRESA agreement on "Transmutation of high level radioactive waste", by the European Commission 6th Framework Programme project IP-EUROTRANS (FI6W-CT-2004-516520). NR 14 TC 11 Z9 11 U1 1 U2 22 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1510 EP 1513 DI 10.3938/jkps.59.1510 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700013 ER PT J AU Basu, SK Mukherjee, G Sonzogni, AA AF Basu, Swapan Kr. Mukherjee, Gopal Sonzogni, A. A. TI Mass Chain Evaluation for A=95 SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Nuclear data; ENSDF; Mass chain evaluation ID HIGH SPINS; SPECTROSCOPY AB A full evaluation of the mass chain A = 95 has been done in the ENSDF format taking into account all the available data until June 2009. Excited states populated by in-beam nuclear reactions and by radioactive decay have been considered. The "evp" editor, developed at the NNDC; has been used for the evaluation. This mass chain was last evaluated in 1993. Many new and improved data were reported since then. A total of 13 nuclei have been evaluated. C1 [Basu, Swapan Kr.; Mukherjee, Gopal] Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India. [Sonzogni, A. A.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA. RP Basu, SK (reprint author), Ctr Variable Energy Cyclotron, 1-AF Bidhan Nagar, Kolkata 700064, W Bengal, India. EM gopal@veccal.ernet.in NR 24 TC 0 Z9 0 U1 0 U2 1 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 EI 1976-8524 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1518 EP 1520 DI 10.3938/jkps.59.1518 PN 3 PG 3 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700015 ER PT J AU Haight, RC AF Haight, R. C. TI Neutron-emission Measurements at a White Neutron Source SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Neutrons; Fission; Fission neutron spectra; Inelastic scattering; Spallation neutron source ID FISSION; SPECTRA AB Data on the spectrum of neutrons emitted from neutron-induced reactions are important in basic nuclear physics and in applications. Our program studies neutron emission from inelastic scattering as well as fission neutron spectra. A "white" neutron source (continuous in energy) allows measurements over a wide range of incident neutron energies all in one experiment. We use the fast neutron source at the Los Alamos Neutron Science Center for incident neutron energies from 0.5 MeV to 200 MeV. These experiments are based on double time-of-flight techniques to determine the energies of the incident and emitted neutrons. For the fission neutron measurements, parallel-plate ionization or avalanche detectors identify fission in actinide samples and give the required fast timing pulse. For inelastic scattering, gamma-ray detectors provide the timing and energy spectroscopy. A large neutron-detector array detects the emitted neutrons. Time-of-flight techniques are used to measure the energies of both the incident and emitted neutrons. Design considerations for the array include neutron-gamma discrimination, neutron energy resolution, angular coverage, segmentation, detector efficiency calibration and data acquisition. We have made preliminary measurements of neutron emission spectra from neutron-induced fission of U-235, U-238, Np-237 and Pu-239. Neutron emission spectra from inelastic scattering on iron and nickel have also been investigated. The results obtained will be compared with evaluated data. C1 Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Haight, RC (reprint author), Los Alamos Natl Lab, Los Alamos Neutron Sci Ctr, POB 1663, Los Alamos, NM 87545 USA. EM haight@lanl.gov FU U.S. Department of Energy at Los Alamos National Laboratory by the Los Alamos National Security, LLC [DE-AC52-06NA25396] FX This work benefitted from the use of the LANSCE accelerator facility and was performed under the auspices of the U.S. Department of Energy at Los Alamos National Laboratory by the Los Alamos National Security, LLC under Contract No. DE-AC52-06NA25396. NR 19 TC 0 Z9 0 U1 0 U2 5 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 EI 1976-8524 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1553 EP 1557 DI 10.3938/jkps.59.1553 PN 3 PG 5 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700024 ER PT J AU Nelson, RO AF Nelson, Ron O. TI LANSCE Nuclear Science Facilities and Activities SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE ND2010; Nuclear data; Instruments; Facilities; Nuclear reactions; Fission ID NEUTRON-INDUCED REACTION AB Nuclear science activities at the Los Alamos Neutron Science Center (LANSCE) encompass measurements spanning the neutron energy range from thermal to 600 MeV. The neutron sources use spallation of the LANSCE 800 MeV pulsed proton beam with the time-of-flight technique to measure properties of neutron-induced reactions as a function of energy over this large energy range. Current experiments are conducted at the Lujan Center moderated neutron source, the unmoderated WNR target, and with a lead-slowing-down spectrometer. Instruments in use include the DANCE array of BaF(2) scintillators for neutron capture studies, the FIGARO array of liquid scintillator neutron detectors, the GEANIE array of high-resolution HPGe x-ray and gamma-ray detectors, and a number of fission chambers, and other detectors. The LANL capabilities for production and handling of radioactive materials coupled with the neutron sources and detectors at LANSCE are enabling new and challenging measurements for a variety of applications including nuclear energy and nuclear astrophysics. An overview of recent research and examples of results is presented. C1 Los Alamos Natl Lab, LANSCE NS, Los Alamos, NM 87545 USA. RP Nelson, RO (reprint author), Los Alamos Natl Lab, LANSCE NS, POB 1663, Los Alamos, NM 87545 USA. EM RNelson@lanl.gov FU U.S. Department of Energy at Los Alamos National Laboratory by the Los Alamos National Security, LLC [DE-AC52-06NA25396] FX We acknowledge the work of our collaborators and colleagues, who have made significant contributions to the development of instruments and techniques at LANSCE. This work benefitted from the use of the LANSCE accelerator facility and was performed under the auspices of the U.S. Department of Energy at Los Alamos National Laboratory by the Los Alamos National Security, LLC under Contract No. DE-AC52-06NA25396. NR 19 TC 2 Z9 2 U1 1 U2 5 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1558 EP 1562 DI 10.3938/jkps.59.1558 PN 3 PG 5 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700025 ER PT J AU Leal, L Derrien, H Guber, K Arbanas, G Wiarda, D AF Leal, L. Derrien, H. Guber, K. Arbanas, G. Wiarda, D. TI Evaluation of the Chromium Resonance Parameters Including Resonance Parameter Covariance SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE R-matrix; Data evaluation; Experimental capture data AB The intent of this work is to report the results and describe the procedures utilized to evaluate the chromium isotopes' cross sections, i.e., (50)Cr, (52)Cr, (53)Cr, and (54)Cr, for criticality safety applications. The evaluations were done in the resolved resonance region using the reduced Reich-Moore R-matrix formalism. The novel aspect of this evaluation is the inclusion of new transmission and capture cross-section measurements performed at the Oak Ridge Electron Linear Accelerator (ORELA) for energies below 100 keV and the extension of the (53)Cr energy region. The resonance analysis was performed with the multilevel R-matrix code, SAMMY, which utilizes the generalized least-squares technique based on the Bayes' theory. Complete sets of resonance parameters and resonance parameter covariance matrices (RPCMs) were obtained for each of the chromium isotopes from the SAMMY analysis of the experimental database. C1 [Leal, L.; Derrien, H.; Guber, K.; Arbanas, G.; Wiarda, D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Leal, L (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM leallc@ornl.gov FU U.S. Department of Energy FX The authors would like to thank Doctors Olivier Bouland, John Harvey, Robert Carlton, and Frank Dietrich for the assistance in providing initial resonance parameters, experimental data and direct-semidirect capture code CUPIDO. This work has been supported by the U.S. Department of Energy Nuclear Criticality Safety Program. NR 10 TC 2 Z9 2 U1 0 U2 0 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1644 EP 1648 DI 10.3938/jkps.59.1644 PN 3 PG 5 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700046 ER PT J AU Danon, Y Block, R Thompson, J Romano, C AF Danon, Y. Block, R. Thompson, J. Romano, C. TI Fission Physics and Cross Section Measurements with a Lead Slowing down Spectrometer SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE ND2010; Nuclear data; Lead slowing down spectrometer; Fission; Cross section ID NUCLEAR-DATA LIBRARY; EMISSION AB A Lead Slowing Down Spectrometer (LSDS) provides a high neutron flux environment that enables measurements of small samples (similar to mu g) or samples with small cross sections (tens of mu b). The LSDS at Rensselaer Polytechnic Institute (RPI) was previously used for fission cross section measurements and for studies of methods for assay of used nuclear fuel. The effective energy range for the LSDS is 0.1 eV to 10 keV with energy resolution of about 35%. Two new LSDS applications were recently developed at RPI; the first enables simultaneous measurements of the fission cross section and fission fragment mass and energy distributions as a function of the incident neutron energy. The second enables measurements of the (n,alpha) and (n, p) cross sections for materials with a positive Q value for these reactions. Fission measurements of (252)Cf, (235)U, and (239)Pu were completed and provide information on fission fragment and energy distributions in resonance clusters. Measurements of the (n,alpha) cross section for (147,149)Sm were completed and compared to previously measured data. The new data indicate that the existing evaluations need to be adjusted. C1 [Danon, Y.; Block, R.; Thompson, J.; Romano, C.] Rensselaer Polytech Inst, Troy, NY 12180 USA. [Romano, C.] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Danon, Y (reprint author), Rensselaer Polytech Inst, Troy, NY 12180 USA. EM danony@rpi.edu FU DOE [DE-FG03-03NA00079, DE-FG52-06NA26202, DE-FG52-09NA29453] FX The authors would also like to thank the DOE for their funding of this research, grant numbers: DE-FG03-03NA00079, DE-FG52-06NA26202, DE-FG52-09NA29453. NR 22 TC 1 Z9 1 U1 0 U2 0 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1649 EP 1653 DI 10.3938/jkps.59.1649 PN 3 PG 5 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700047 ER PT J AU Guber, KH Koehler, PE Wiarda, D Harvey, JA AF Guber, K. H. Koehler, P. E. Wiarda, D. Harvey, J. A. TI Neutron Cross-Section Measurements on Structural Materials at ORELA SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Nuclear data; ORELA; Neutron cross section ID CAPTURE AB Neutron capture experiments, using isotopically enriched and natural samples of chromium and titanium, were performed on flight; paths 6 and 7 at the 40 m flight; station of ORELA. The experimental data were acquired using a pair of deuterated benzene detectors employing the now well-established pulse-height-weighting technique. These data were complemented by new total cross-section measurements where no useful previous data were available. C1 [Guber, K. H.; Koehler, P. E.; Wiarda, D.; Harvey, J. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Guber, KH (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM guberkh@ornl.gov OI Koehler, Paul/0000-0002-6717-0771 FU U.S. Department of Energy [DE-AC05-00OR22725]; Office of Science FX ORNL is managed by UT-Battelle. LLC, for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. The U.S. Department of Energy Nuclear Criticality Safety Program and the Office of Science sponsored the work that is presented in this paper. NR 6 TC 2 Z9 2 U1 0 U2 2 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1685 EP 1688 DI 10.3938/jkps.59.1685 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700054 ER PT J AU Gledenov, Y Sedysheva, M Zhang, GH Zhang, JG Wu, H Liu, JM Chen, JX Koehler, P Khuukhenkhuu, G Szalanski, P AF Gledenov, Y. Sedysheva, M. Zhang, Guohui Zhang, Jiaguo Wu, Hao Liu, Jiaming Chen, Jinxiang Koehler, P. Khuukhenkhuu, G. Szalanski, P. TI Investigation of (n,alpha) Reaction for Rare-earth Elements in the MeV Neutron Energy Region SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE (147,149)Sm; (143)Nd; (n,alpha) Reaction; Cross section; Ionization chamber ID CROSS-SECTIONS; ISOTOPES AB Cross sections and forward/backward ratios in the laboratory reference system were measured for (143)Nd(n, alpha)(140)Ce at, 4.0, 5.0, and 6.0 MeV, (147)Sm(n, alpha)(144)Nd at 5.0 and 6.0 MeV, and (149)Sm(n, alpha) (146)Nd at 6.0 MeV. A twin gridded ionization chamber and large-area back-to-back (143)Nd(2)O(3) and (147,149)Sm(2)O(3) samples were employed. Experiments were performed at the 4.5 MV Van de Graaff of Peking University, China. Fast neutrons were produced through the D(d,n)(3)He reaction by using a deuterium gas target. A small (238)U fission chamber was employed for absolute neutron flux determination and a BF(3) long counter was used as neutron flux monitor. Present experimental data are compared with previous measurements, evaluations, and model calculations. C1 [Gledenov, Y.; Sedysheva, M.] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Russia. [Zhang, Guohui; Zhang, Jiaguo; Wu, Hao; Liu, Jiaming; Chen, Jinxiang] Peking Univ, Inst Heavy Ion Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. [Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Khuukhenkhuu, G.] Natl Univ Mongolia, Nucl Res Ctr, Ulaanbaatar, Mongol Peo Rep. [Szalanski, P.] Univ Lodz, Chair Nucl Phys & Radiat Safety, PL-90131 Lodz, Poland. RP Gledenov, Y (reprint author), Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Russia. EM gledenov@nf.jinr.ru RI Szalanski, Pawel/F-9428-2011; OI Szalanski, Pawel/0000-0002-2047-7792; Koehler, Paul/0000-0002-6717-0771 FU Russian Foundation for Basic Research [RFBR-NSFC 07-02-92104]; National Natural Science Foundation of China [10875006, 10811120014]; China nuclear Data Center; U.S. Department of Energy [DE-AC05-00OR22725]; UT-Battelle, LLC FX This work was financially supported by the Russian Foundation for Basic Research (RFBR-NSFC 07-02-92104), the National Natural Science Foundation of China (10875006, 10811120014), the China nuclear Data Center, and U.S. Department of Energy under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. NR 15 TC 0 Z9 0 U1 0 U2 8 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1693 EP 1696 DI 10.3938/jkps.59.1693 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700056 ER PT J AU Kajimoto, T Shigyo, N Ishibashi, K Moriguchi, D Nakamura, Y Arakawa, H Kunieda, S Watanabe, T Haight, RC AF Kajimoto, T. Shigyo, N. Ishibashi, K. Moriguchi, D. Nakamura, Y. Arakawa, H. Kunieda, S. Watanabe, T. Haight, R. C. TI Measurements of Neutron-induced Neutron-production Double-differential Cross Sections from 50 to 150 MeV SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Neutron incidence; Neutron production; Double-differential cross-section; Spallation; NE213; Moving source model ID PROTONS AB We measured neutron-production double-differential cross-sections by neutron incidence from 50 to 150 MeV. A U-238 fission ionization chamber was set to take the incident-neutron flux. Six NE213 liquid scintillators which had a thickness of 12.7 cm and 12.7 cm in diameter, were placed at 15 degrees, 30 degrees, 60 degrees, 90 degrees, 120 degrees, and 150 degrees to detect neutrons emitted from a sample. The energy of incident neutron was determined by the time of flight (TOF) technique. The energy spectra of neutron emitted from the sample were derived by the unfolding their light output spectra with the response functions of the detectors. The response functions were measured with the spoliation neutrons above 25 MeV. In the unfolding process, we assumed that neutron energy spectra reproduced the shape by the moving source model. The neutron-induced neutron-production double-differential cross sections were parameterized with the moving source model by the least-square method. The experimental results were compared with calculations of the PEEL'S and the TALYS codes. C1 [Kajimoto, T.; Shigyo, N.; Ishibashi, K.; Moriguchi, D.; Nakamura, Y.; Arakawa, H.] Kyushu Univ, Dept Appl Quantum Phys & Nucl Engn, Fukuoka 8190395, Japan. [Kunieda, S.] Japan Atom Energy Agcy, Ibaraki 3191195, Japan. [Watanabe, T.; Haight, R. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Kajimoto, T (reprint author), Kyushu Univ, Dept Appl Quantum Phys & Nucl Engn, Fukuoka 8190395, Japan. EM kajimoto@kune2a.nucl.kyushu-u.ac.jp FU US Department of Energy [DE-AC52-06NA25396] FX This work has benefited from the use of the Los Alamos Neutron Science Center at the Los Alamos National Laboratory. This facility is funded by the US Department of Energy under contract DE-AC52-06NA25396. NR 13 TC 1 Z9 1 U1 1 U2 4 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 EI 1976-8524 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1721 EP 1724 DI 10.3938/jkps.59.1721 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700063 ER PT J AU Cano-Ott, D Alvarez-Velarde, F Gonzalez-Romero, E Guerrero, C Martinez, T Mendoza, E Villamarin, D Vicente, MC Abbondanno, U Colonna, N Meaze, MH Marrone, S Tagliente, G Terlizzi, R Belloni, F Fujii, K Milazzo, PM Moreau, C Andriamonje, S Calviani, M Chiaveri, E Kadi, Y Vlachoudis, V Andrzejewski, J Marganiec, J Assimakopoulos, P Karadimos, D Karamanis, D Papachristodoulou, C Patronis, N Audouin, L David, S Ferrant, L Isaev, S Stephan, C Tassan-Got, L Badurek, G Jericha, E Leeb, H Oberhummer, H Pigni, MT Baumann, P Kerveno, M Lukic, S Rudolf, G Becvar, F Krticka, M Calvino, F Frais-Koelbl, H Griesayer, E Capote, R Lozano, M Quesada, J Mengoni, A De Albornoz, AC Maroues, L Salgado, J Tavora, L Vaz, P Cennini, P Dahlfors, M Ferrari, A Gramegna, F Herrera-Martinez, A Mastinu, P Praena, J Sarchiapone, L Wiendler, H Chepel, V Ferreira-Marques, R Goncalves, I Lindote, A Lopes, I Neves, F Aerts, G Berthoumieux, E Dridi, W Gunsing, F Pancin, J Perrot, L Plukis, A Lampoudis, C Cortes, G Poch, A Pretel, C Couture, A Cox, J O'Brien, S Wiescher, M Dillman, I Heil, M Kappeler, F Mosconi, M Plag, R Voss, F Walter, S Wisshak, K Dolfini, R Rubbia, C Domingo-Pardo, C Tain, JL Eleftheriadis, C Savvidis, I Furman, W Konovalov, V Goverdovski, A Ketlerov, V Alvarez, H Duran, I Paradela, C Haas, B Haight, R Reifarth, R Igashira, M Koehler, P Kossionides, E Massimi, C Vannini, G Oshima, M Papadopoulos, C Vlastou, R Pavlik, A Pavlopoulos, P Plompen, A Rullhusen, P Rauscher, T Rosetti, M Ventura, A AF Cano-Ott, D. Alvarez-Velarde, F. Gonzalez-Romero, E. Guerrero, C. Martinez, T. Mendoza, E. Villamarin, D. Vicente, M. C. Abbondanno, U. Colonna, N. Meaze, M. H. Marrone, S. Tagliente, G. Terlizzi, R. Belloni, F. Fujii, K. Milazzo, P. M. Moreau, C. Andriamonje, S. Calviani, M. Chiaveri, E. Kadi, Y. Vlachoudis, V. Andrzejewski, J. Marganiec, J. Assimakopoulos, P. Karadimos, D. Karamanis, D. Papachristodoulou, C. Patronis, N. Audouin, L. David, S. Ferrant, L. Isaev, S. Stephan, C. Tassan-Got, L. Badurek, G. Jericha, E. Leeb, H. Oberhummer, H. Pigni, M. T. Baumann, P. Kerveno, M. Lukic, S. Rudolf, G. Becvar, F. Krticka, M. Calvino, F. Frais-Koelbl, H. Griesayer, E. Capote, R. Lozano, M. Quesada, J. Mengoni, A. De Albornoz, A. Carrillo Maroues, L. Salgado, J. Tavora, L. Vaz, P. Cennini, P. Dahlfors, M. Ferrari, A. Gramegna, F. Herrera-Martinez, A. Mastinu, P. Praena, J. Sarchiapone, L. Wiendler, H. Chepel, V. Ferreira-Marques, R. Goncalves, I. Lindote, A. Lopes, I. Neves, F. Aerts, G. Berthoumieux, E. Dridi, W. Gunsing, F. Pancin, J. Perrot, L. Plukis, A. Lampoudis, C. Cortes, G. Poch, A. Pretel, C. Couture, A. Cox, J. O'Brien, S. Wiescher, M. Dillman, I. Heil, M. Kaeppeler, F. Mosconi, M. Plag, R. Voss, F. Walter, S. Wisshak, K. Dolfini, R. Rubbia, C. Domingo-Pardo, C. Tain, J. L. Eleftheriadis, C. Savvidis, I. Furman, W. Konovalov, V. Goverdovski, A. Ketlerov, V. Alvarez, H. Duran, I. Paradela, C. Haas, B. Haight, R. Reifarth, R. Igashira, M. Koehler, P. Kossionides, E. Massimi, C. Vannini, G. Oshima, M. Papadopoulos, C. Vlastou, R. Pavlik, A. Pavlopoulos, P. Plompen, A. Rullhusen, P. Rauscher, T. Rosetti, M. Ventura, A. CA n TOF Collaboration TI Neutron Capture Measurements on Minor Actinides at the n_TOF Facility at CERN: Past, Present and Future SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE n_TOF; Total Absorption Calorimeter; TAC; Neutron capture; Cross section; Nuclear waste; Transmutation; Generation IV; Accelerator driven system; ADS; Nuclear reactor; Nuclear energy; Nuclear data; Barium fluoride; Actinides; Plutonium; Americium; Uranium AB The successful development of advanced nuclear systems for sustainable energy production and nuclear waste management depends on high quality nuclear data libraries. Recent sensitivity studies and reports [1-3] have identified the need for substantially improving the accuracy of neutron cross-section data for minor actinides. The n_TOF collaboration has initiated an ambitious experimental program for the measurement of neutron capture cross sections of minor actinides. Two experimental setups have been constructed for this purpose: a Total Absorption Calorimeter (TAC) [4] for measuring neutron capture cross-sections of low-mass and/or radioactive samples and a set of two low neutron sensitivity C6D6 detectors for the less radioactive materials. C1 [Cano-Ott, D.; Alvarez-Velarde, F.; Gonzalez-Romero, E.; Guerrero, C.; Martinez, T.; Mendoza, E.; Villamarin, D.; Vicente, M. C.] Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain. [Abbondanno, U.; Colonna, N.; Meaze, M. H.; Marrone, S.; Tagliente, G.; Terlizzi, R.] Ist Nazl Fis Nucl, I-70126 Bari, Italy. [Belloni, F.; Fujii, K.; Milazzo, P. M.; Moreau, C.] Ist Nazl Fis Nucl, Trieste, Italy. [Andriamonje, S.; Calviani, M.; Chiaveri, E.; Kadi, Y.; Vlachoudis, V.] CERN, Geneva, Switzerland. [Andrzejewski, J.; Marganiec, J.] Univ Lodz, PL-90131 Lodz, Poland. [Assimakopoulos, P.; Karadimos, D.; Karamanis, D.; Papachristodoulou, C.; Patronis, N.; David, S.] Univ Ioannina, GR-45110 Ioannina, Greece. [Audouin, L.; Ferrant, L.; Isaev, S.; Stephan, C.; Tassan-Got, L.] Ctr Natl Rech Sci IN2P3 IPN, Orsay, France. [Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Pigni, M. T.] Vienna Univ Technol, Atominst Osterreich Univ, Vienna, Austria. [Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.] Ctr Natl Rech Sci IN2P3 IReS, Strasbourg, France. [Becvar, F.; Krticka, M.] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic. [Calvino, F.] Univ Politecn Madrid, E-28040 Madrid, Spain. [Frais-Koelbl, H.; Griesayer, E.; Capote, R.; Mengoni, A.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Capote, R.; Lozano, M.; Quesada, J.] Univ Seville, Seville, Spain. [Mengoni, A.; Rosetti, M.; Ventura, A.] ENEA, Bologna, Italy. [De Albornoz, A. Carrillo; Maroues, L.; Salgado, J.; Tavora, L.; Vaz, P.] ITN, Lisbon, Portugal. [Cennini, P.; Dahlfors, M.; Ferrari, A.; Gramegna, F.; Herrera-Martinez, A.; Mastinu, P.; Praena, J.; Sarchiapone, L.; Wiendler, H.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy. [Chepel, V.; Ferreira-Marques, R.; Goncalves, I.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, LIP Coimbra, P-3000 Coimbra, Portugal. [Chepel, V.; Ferreira-Marques, R.; Goncalves, I.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, Dept Fis, P-3000 Coimbra, Portugal. [Aerts, G.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A.; Lampoudis, C.] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France. [Lampoudis, C.; Eleftheriadis, C.; Savvidis, I.] Aristotle Univ Thessaloniki, Thessaloniki, Greece. [Cortes, G.; Poch, A.; Pretel, C.] Univ Politecn Cataluna, Barcelona, Spain. [Couture, A.; Cox, J.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Dillman, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Plag, R.; Voss, F.; Walter, S.; Wisshak, K.] Forschungszentram Karlsruhe GmbH FZK, Inst Kernphys, Karlsruhe, Germany. [Dolfini, R.; Rubbia, C.] Univ Pavia, I-27100 Pavia, Italy. [Domingo-Pardo, C.; Tain, J. L.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain. [Furman, W.; Konovalov, V.] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna, Russia. [Goverdovski, A.; Ketlerov, V.] Inst Phys & Power Engn, Obninsk, Kaluga Region, Russia. [Alvarez, H.; Duran, I.; Paradela, C.] Univ Santiago Compostela, Santiago De Compostela, Spain. [Haas, B.] Ctr Natl Rech Sci IN2P3 CENBG, Bordeaux, France. [Haight, R.; Reifarth, R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Igashira, M.] Tokyo Inst Technol, Tokyo 152, Japan. [Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Kossionides, E.] NCSR Demokritos, Athens, Greece. [Massimi, C.; Vannini, G.] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy. [Massimi, C.; Vannini, G.] Sez INFN Bologna, Bologna, Italy. [Oshima, M.] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan. [Papadopoulos, C.; Vlastou, R.] Natl Tech Univ Athens, GR-10682 Athens, Greece. [Pavlik, A.] Univ Vienna, Inst Isotopenforsch & Kernphys, A-1010 Vienna, Austria. [Pavlopoulos, P.] Pole Univ Leonard de Vinci, Paris, France. [Plompen, A.; Rullhusen, P.] CEC JRC IRMM, Geel, Belgium. [Rauscher, T.] Univ Basel, Dept Phys & Astron, Basel, Switzerland. RP Ano-Ott, DC (reprint author), Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain. EM daniel.cano@ciemat.es RI Paradela, Carlos/J-1492-2012; Gramegna, Fabiana/B-1377-2012; Calvino, Francisco/K-5743-2014; Mengoni, Alberto/I-1497-2012; Cano Ott, Daniel/K-4945-2014; Quesada Molina, Jose Manuel/K-5267-2014; Mendoza Cembranos, Emilio/K-5789-2014; Guerrero, Carlos/L-3251-2014; Gonzalez Romero, Enrique/L-7561-2014; Pretel Sanchez, Carme/L-8287-2014; Martinez, Trinitario/K-6785-2014; Capote Noy, Roberto/M-1245-2014; Massimi, Cristian/B-2401-2015; Duran, Ignacio/H-7254-2015; Alvarez Pol, Hector/F-1930-2011; Massimi, Cristian/K-2008-2015; Becvar, Frantisek/D-3824-2012; Jericha, Erwin/A-4094-2011; Chepel, Vitaly/H-4538-2012; Cortes, Guillem/B-6869-2014; Tain, Jose L./K-2492-2014; Ventura, Alberto/B-9584-2011; Rauscher, Thomas/D-2086-2009; Lindote, Alexandre/H-4437-2013; Neves, Francisco/H-4744-2013; Goncalves, Isabel/J-6954-2013; Vaz, Pedro/K-2464-2013; Lopes, Isabel/A-1806-2014; OI Lozano Leyva, Manuel Luis/0000-0003-2853-4103; Paradela Dobarro, Carlos/0000-0003-0175-8334; Koehler, Paul/0000-0002-6717-0771; Domingo-Pardo, Cesar/0000-0002-2915-5466; Gramegna, Fabiana/0000-0001-6112-0602; Calvino, Francisco/0000-0002-7198-4639; Mengoni, Alberto/0000-0002-2537-0038; Chepel, Vitaly/0000-0003-0675-4586; Pavlik, Andreas/0000-0001-7526-3372; Goncalves, Isabel/0000-0002-1997-955X; Cano Ott, Daniel/0000-0002-9568-7508; Quesada Molina, Jose Manuel/0000-0002-2038-2814; Mendoza Cembranos, Emilio/0000-0002-2843-1801; Guerrero, Carlos/0000-0002-2111-546X; Gonzalez Romero, Enrique/0000-0003-2376-8920; Martinez, Trinitario/0000-0002-0683-5506; Capote Noy, Roberto/0000-0002-1799-3438; Massimi, Cristian/0000-0001-9792-3722; Alvarez Pol, Hector/0000-0001-9643-6252; Massimi, Cristian/0000-0003-2499-5586; Jericha, Erwin/0000-0002-8663-0526; Ventura, Alberto/0000-0001-6748-7931; Rauscher, Thomas/0000-0002-1266-0642; Lindote, Alexandre/0000-0002-7965-807X; Neves, Francisco/0000-0003-3635-1083; Vaz, Pedro/0000-0002-7186-2359; Lopes, Isabel/0000-0003-0419-903X; Marques, Rui/0000-0003-3549-8198 FU ENRESA under the CIEMAT-ENRESA; European Commission [FI6W-CT-2004-516520]; ANDES; [FPA2005-06918-C03-01]; [CSD-2007-00042] FX This work was partially supported by Spanish FPA2005-06918-C03-01 and CSD-2007-00042. grants, by ENRESA under the CIEMAT-ENRESA agreement on "Transmutation of high level radioactive waste", by the European Commission 6th and 7th Framework Programme projects IP-EUROTRANS (FI6W-CT-2004-516520) and ANDES, respectively. NR 18 TC 2 Z9 2 U1 0 U2 17 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1809 EP 1812 DI 10.3938/jkps.59.1809 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700085 ER PT J AU Lampoudis, C Kopecky, S Schillebeeckx, P Siegler, P Guber, K AF Lampoudis, C. Kopecky, S. Schillebeeckx, P. Siegler, P. Guber, K. TI Neutron Total and Capture Cross Section of Tungsten Isotopes SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Neutron cross section; Transmission; Neutron capture; Time of flight; Nuclear data ID REGION AB A new set of measurements for the total and capture cross section determination of W isotopes was done using GELINA (GEel LINear Accelerator), a neutron Time-Of-Flight facility at the Institute for Reference Materials and Measurements (IRMM). Measuring stations at different flight path lengths were used in order to cover a broad neutron energy range with high resolution demands. Experimental techniques adopted for both transmission and capture measurements are well established using a (6)Li glass detector and C(6)D(6) scintillation arrays as detections systems respectively., As target samples highly enriched (182,183,184,186)W metallic discs were used. C1 [Lampoudis, C.; Kopecky, S.; Schillebeeckx, P.; Siegler, P.] EC JRC IRMM, Nucl Phys Unit, B-2440 Geel, Belgium. [Guber, K.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Lampoudis, C (reprint author), EC JRC IRMM, Nucl Phys Unit, Retieseweg 111, B-2440 Geel, Belgium. EM Christos.Lampoudis@ec.europa.eu FU U.S. Department of Energy [DE-AC05-00OR22725]; Office of Science FX ORNL is managed by UT-Battelle, LLC, for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. The U.S. Department of Energy Nuclear Criticality Safety Program and the Office of Science sponsored the work that is presented in this paper. NR 11 TC 4 Z9 4 U1 0 U2 1 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1860 EP 1863 DI 10.3938/jkps.59.1860 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700098 ER PT J AU Burke, JT Ressler, JJ Escher, JE Scielzo, ND Thompson, IJ Henderson, R Gostic, J Bernstein, L Bluel, D Weideking, M Meot, V Roig, O Phair, LW Hatarik, R Munson, J Angell, C Goldblum, B Beausang, CW Ross, T Hughes, R Aiche, M Barreau, C Cappelan, N Czajkowski, S Hass, B Jurado, B Mathieu, L Companis, I AF Burke, J. T. Ressler, J. J. Escher, J. E. Scielzo, N. D. Thompson, I. J. Henderson, R. Gostic, J. Bernstein, L. Bluel, D. Weideking, M. Meot, V. Roig, O. Phair, L. W. Hatarik, R. Munson, J. Angell, C. Goldblum, B. Beausang, C. W. Ross, T. Hughes, R. Aiche, M. Barreau, C. Cappelan, N. Czajkowski, S. Hass, B. Jurado, B. Mathieu, L. Companis, I. TI Experimental Approaches to Studying the Fission Process Using the Surrogate Reaction Technique SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE ND2010; Nuclear data; Surrogate reaction; (238)Pu; Fission; Cross section AB Over the past several years, Lawrence Livermore National Laboratory has been developing the surrogate technique to study the properties of fission and perform precision cross section measurements. The surrogate technique allows nuclear physicists to measure previously unattainable compound-nuclear cross sections of nuclei currently one to two nucleons away from a stable or long lived (similar to 10,000 y) nucleus. The goal of the surrogate technique is to create the same excited compound nucleus as is produced in a specific desired direct neutron reaction, study the decay channels and extract the cross section of choice; (n,gamma), (n,2n) or (n,f). This may be accomplished via an inelastic scattering reaction (e.g. (p,p'), (d,d'), ((3)He,(3)He')), a neutron transfer reaction (e.g. (d,p), ((18)O,(16)O)), or a pick-up reaction such as ((3)He,(4)He). To measure the decay channels (gamma-ray or fission) we have constructed the Silicon Telescope Array for Reactions Studies (STARS), the Livermore BERkeley Array for Collaborative Experiments (LIBERACE) and the HYDRA array for precision fission studies. Preliminary results from a recent (238)Pu(n,f) measurement are presented. C1 [Burke, J. T.; Ressler, J. J.; Escher, J. E.; Scielzo, N. D.; Thompson, I. J.; Henderson, R.; Gostic, J.; Bernstein, L.; Bluel, D.; Weideking, M.] Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA. [Meot, V.; Roig, O.] Commissariat Energie Atom, Serv Phys Nucl, Bruyeres Le Chatel, Arpajon, France. [Phair, L. W.; Hatarik, R.; Munson, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Munson, J.; Angell, C.; Goldblum, B.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. [Beausang, C. W.; Ross, T.; Hughes, R.] Univ Richmond, Dept Nucl Phys, Richmond, VA 23173 USA. [Aiche, M.; Barreau, C.; Cappelan, N.; Czajkowski, S.; Hass, B.; Jurado, B.; Mathieu, L.; Companis, I.] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France. [Companis, I.] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest 077125, Romania. RP Burke, JT (reprint author), Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA. EM burke26@llnl.gov RI Escher, Jutta/E-1965-2013; Burke, Jason/I-4580-2012; OI Angell, Christopher/0000-0003-0333-6557 FU Department of Energy's NNSA, Office of Non-proliferation Research and Development [NA-22]; US Department of Energy [DE-AC52-07NA27344] FX The authors thank the 88-Inch Cyclotron operations and facilities staff for their experimental support of this study. We are grateful to the Department of Energy's NNSA, Office of Non-proliferation Research and Development (NA-22), for financial support. This work was performed under the auspices of the US Department of Energy under Contract No. DE-AC52-07NA27344. NR 14 TC 1 Z9 1 U1 0 U2 5 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1892 EP 1895 DI 10.3938/jkps.59.1892 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700106 ER PT J AU Tarrio, D Tassan-Got, L Audouin, L Berthier, B Ferrant, L Isaev, S Le Naour, C Stephan, C Trubert, D David, S Duran, I Paradela, C Alvarez, H Abbondanno, U Fujii, K Milazzo, PM Moreau, C Aerts, G Alvarez-Velarde, F Cano-Ott, D Embid-Segura, M Gonzalez-Romero, E Guerrero, C Martinez, T Villamarin, D Vicente, MC Andriamonje, S Berthoumieux, E Dridi, W Gunsig, F Pancin, J Perrot, L Plukis, A Andrzejewski, J Marganiec, J Assimakopoulos, P Karadimos, D Karamanis, D Papachristodoulou, C Patronis, N Badurek, G Jericha, E Leeb, H Oberhummer, H Pigni, MT Baumann, P Kerveno, M Lukic, S Rudolf, G Becvar, F Krticka, M Calvino, F Cortes, G Poch, A Pretel, C Calviani, M Gramegna, F Mastinu, P Praena, J Capote, R Carrapico, C Cennini, P Chiaveri, E Dahlfors, M Ferrari, A Goncalves, I Herrera-Martinez, A Kadi, Y Sarchiapone, L Vlachoudis, V Chepel, V Ferreira-Marques, R Lindote, A Lopes, I Neves, F Colonna, N Tagliente, G Terlizzi, R Couture, A Cox, J Marrone, S O'Brien, S Wiescher, M Dillmann, I Heil, M Kappeler, F Mosconi, M Voss, F Walter, S Wisshak, K Domingo-Pardo, C Plag, R Plompen, A Tain, JL Eleftheriadis, C Savvidis, I Furman, W Haas, B Haight, R Reifarth, R Igashira, M Koehler, P Kossionides, E Lampoudis, C Lazano, M Quesada, J Massimi, C Vannini, G Mengoni, A Oshima, M Papadopoulos, C Pavlik, A Pavlopoulos, P Vlastou, R Rauscher, T Rubbia, C Rullhusen, P Salgado, J Santos, C Tavora, L Vaz, P Ventura, A AF Tarrio, D. Tassan-Got, L. Audouin, L. Berthier, B. Ferrant, L. Isaev, S. Le Naour, C. Stephan, C. Trubert, D. David, S. Duran, I. Paradela, C. Alvarez, H. Abbondanno, U. Fujii, K. Milazzo, P. M. Moreau, C. Aerts, G. Alvarez-Velarde, F. Cano-Ott, D. Embid-Segura, M. Gonzalez-Romero, E. Guerrero, C. Martinez, T. Villamarin, D. Vicente, M. C. Andriamonje, S. Berthoumieux, E. Dridi, W. Gunsig, F. Pancin, J. Perrot, L. Plukis, A. Andrzejewski, J. Marganiec, J. Assimakopoulos, P. Karadimos, D. Karamanis, D. Papachristodoulou, C. Patronis, N. Badurek, G. Jericha, E. Leeb, H. Oberhummer, H. Pigni, M. T. Baumann, P. Kerveno, M. Lukic, S. Rudolf, G. Becvar, F. Krticka, M. Calvino, F. Cortes, G. Poch, A. Pretel, C. Calviani, M. Gramegna, F. Mastinu, P. Praena, J. Capote, R. Carrapico, C. Cennini, P. Chiaveri, E. Dahlfors, M. Ferrari, A. Goncalves, I. Herrera-Martinez, A. Kadi, Y. Sarchiapone, L. Vlachoudis, V. Chepel, V. Ferreira-Marques, R. Lindote, A. Lopes, I. Neves, F. Colonna, N. Tagliente, G. Terlizzi, R. Couture, A. Cox, J. Marrone, S. O'Brien, S. Wiescher, M. Dillmann, I. Heil, M. Kaeppeler, F. Mosconi, M. Voss, F. Walter, S. Wisshak, K. Domingo-Pardo, C. Plag, R. Plompen, A. Tain, J. L. Eleftheriadis, C. Savvidis, I. Furman, W. Haas, B. Haight, R. Reifarth, R. Igashira, M. Koehler, P. Kossionides, E. Lampoudis, C. Lazano, M. Quesada, J. Massimi, C. Vannini, G. Mengoni, A. Oshima, M. Papadopoulos, C. Pavlik, A. Pavlopoulos, P. Vlastou, R. Rauscher, T. Rubbia, C. Rullhusen, P. Salgado, J. Santos, C. Tavora, L. Vaz, P. Ventura, A. CA n TOF Collaboration TI High-energy Neutron-induced Fission Cross Sections of Natural Lead and Bismuth-209 SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Nuclear data; Neutron-induced fission reactions; Pb-nat(n,f); Bi-209(n,f); Spallation neutron source; n_TOF facility AB The CERN Neutron Time-Of-Flight (n_TOF) facility is well suited to measure small neutron-induced fission cross sections, as those of subactinides. The cross section ratios of (nat)Pb and (209)Bi relative to (235)U and (238)U were measured using PPAC detectors. The fragment coincidence method allows to unambiguously identify the fission events. The present experiment provides the first results for neutron-induced fission up to 1 GeV for (nat)Pb and (209)Bi. A good agreement with previous experimental data below 200 MeV is shown. The comparison with proton-induced fission indicates that the limiting regime where neutron-induced and proton-induced fission reach equal cross section is close to 1 GeV. C1 [Tarrio, D.] Univ Santiago de Compostela, Fac Fis, Santiago De Compostela 15782, Spain. [Tassan-Got, L.; Audouin, L.; Berthier, B.; Ferrant, L.; Isaev, S.; Le Naour, C.; Stephan, C.; Trubert, D.; David, S.] Ctr Natl Rech Sci IN2P3 IPN, Orsay, France. [Calviani, M.; Gramegna, F.; Mastinu, P.; Praena, J.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Trieste, Italy. [Aerts, G.] CEA Saclay, IRFU, F-91191 Gif Sur Yvette, France. [Alvarez-Velarde, F.; Cano-Ott, D.; Embid-Segura, M.; Gonzalez-Romero, E.; Guerrero, C.; Martinez, T.; Villamarin, D.; Vicente, M. C.] Ctr Invest Energet Medioambientales & Tecnol, Madrid, Spain. [Andriamonje, S.; Berthoumieux, E.; Dridi, W.; Gunsig, F.; Pancin, J.; Perrot, L.; Plukis, A.; Carrapico, C.; Lampoudis, C.] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France. [Andrzejewski, J.; Marganiec, J.; Kadi, Y.] Univ Lodz, PL-90131 Lodz, Poland. [Assimakopoulos, P.; Karadimos, D.; Karamanis, D.; Papachristodoulou, C.; Patronis, N.] Univ Ioannina, GR-45110 Ioannina, Greece. [Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Pigni, M. T.] Tech Univ, Atominst Osterreich Univ, Vienna, Austria. [Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.] Ctr Natl Rech Sci IN2P3 IreS, Strasbourg, France. [Becvar, F.; Krticka, M.] Charles Univ Prague, Prague, Czech Republic. [Calvino, F.; Cortes, G.; Poch, A.; Pretel, C.] Univ Politecn Cataluna, E-08028 Barcelona, Spain. [Capote, R.; Mengoni, A.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Capote, R.; Lazano, M.; Quesada, J.] Univ Seville, Seville, Spain. [Carrapico, C.; Salgado, J.; Santos, C.; Tavora, L.; Vaz, P.] Inst Tecnol & Nucl ITN, Lisbon, Portugal. [Cennini, P.; Chiaveri, E.; Dahlfors, M.; Ferrari, A.; Goncalves, I.; Herrera-Martinez, A.; Kadi, Y.; Sarchiapone, L.; Vlachoudis, V.; Mengoni, A.] CERN, Geneva, Switzerland. [Chepel, V.; Ferreira-Marques, R.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, Dept Fis, LIP Coimbra, P-3000 Coimbra, Portugal. [Colonna, N.; Tagliente, G.; Terlizzi, R.] Ist Nazl Fis Nucl, I-70126 Bari, Italy. [Couture, A.; Cox, J.; Marrone, S.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Dillmann, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Voss, F.; Walter, S.; Wisshak, K.] Forschungszentrum Karlsruhe GmbH FZK, Inst Kernphys, Karlsruhe, Germany. [Domingo-Pardo, C.; Plag, R.; Plompen, A.; Tain, J. L.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain. [Eleftheriadis, C.; Savvidis, I.; Lampoudis, C.] Aristotle Univ Thessaloniki, Thessaloniki, Greece. [Furman, W.] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna, Russia. [Haas, B.] Ctr Natl Rech Sci IN2P3 CENBG, Bordeaux, France. [Haight, R.; Reifarth, R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Igashira, M.] Tokyo Inst Technol, Tokyo 152, Japan. [Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Kossionides, E.] NCSR Demokritos, Athens, Greece. [Massimi, C.; Vannini, G.] Univ Bologna, Dipartamento Fis, Sez INFN Bologna, I-40126 Bologna, Italy. [Oshima, M.] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan. [Papadopoulos, C.] Natl Tech Univ Athens, GR-10682 Athens, Greece. [Pavlik, A.] Univ Vienna, Fak Phys, A-1010 Vienna, Austria. [Pavlopoulos, P.; Vlastou, R.] Pole Univ Leonard de Vinci, Paris, La Defense, France. [Rauscher, T.] Univ Basel, Dept Phys, CH-4003 Basel, Switzerland. [Rubbia, C.] Univ Pavia, I-27100 Pavia, Italy. [Rullhusen, P.] CEC JRC IRMM, Geel, Belgium. [Ventura, A.] ENEA, Bologna, Italy. RP Tarrio, D (reprint author), Univ Santiago de Compostela, Fac Fis, Santiago De Compostela 15782, Spain. EM diego.tarrio@usc.es RI Gramegna, Fabiana/B-1377-2012; Calvino, Francisco/K-5743-2014; Mengoni, Alberto/I-1497-2012; Cano Ott, Daniel/K-4945-2014; Quesada Molina, Jose Manuel/K-5267-2014; Guerrero, Carlos/L-3251-2014; Gonzalez Romero, Enrique/L-7561-2014; Pretel Sanchez, Carme/L-8287-2014; Martinez, Trinitario/K-6785-2014; Capote Noy, Roberto/M-1245-2014; Massimi, Cristian/B-2401-2015; Duran, Ignacio/H-7254-2015; Alvarez Pol, Hector/F-1930-2011; Massimi, Cristian/K-2008-2015; Paradela, Carlos/J-1492-2012; Tain, Jose L./K-2492-2014; Becvar, Frantisek/D-3824-2012; Jericha, Erwin/A-4094-2011; Chepel, Vitaly/H-4538-2012; Ventura, Alberto/B-9584-2011; Rauscher, Thomas/D-2086-2009; Lindote, Alexandre/H-4437-2013; Neves, Francisco/H-4744-2013; Goncalves, Isabel/J-6954-2013; Vaz, Pedro/K-2464-2013; Lopes, Isabel/A-1806-2014; Cortes, Guillem/B-6869-2014; OI Gramegna, Fabiana/0000-0001-6112-0602; Calvino, Francisco/0000-0002-7198-4639; Mengoni, Alberto/0000-0002-2537-0038; Pavlik, Andreas/0000-0001-7526-3372; Goncalves, Isabel/0000-0002-1997-955X; Cano Ott, Daniel/0000-0002-9568-7508; Quesada Molina, Jose Manuel/0000-0002-2038-2814; Guerrero, Carlos/0000-0002-2111-546X; Gonzalez Romero, Enrique/0000-0003-2376-8920; Martinez, Trinitario/0000-0002-0683-5506; Capote Noy, Roberto/0000-0002-1799-3438; Massimi, Cristian/0000-0001-9792-3722; Alvarez Pol, Hector/0000-0001-9643-6252; Massimi, Cristian/0000-0003-2499-5586; Jericha, Erwin/0000-0002-8663-0526; Ventura, Alberto/0000-0001-6748-7931; Rauscher, Thomas/0000-0002-1266-0642; Lindote, Alexandre/0000-0002-7965-807X; Neves, Francisco/0000-0003-3635-1083; Vaz, Pedro/0000-0002-7186-2359; Lopes, Isabel/0000-0003-0419-903X; Marques, Rui/0000-0003-3549-8198; Chepel, Vitaly/0000-0003-0675-4586; Lozano Leyva, Manuel Luis/0000-0003-2853-4103; Paradela Dobarro, Carlos/0000-0003-0175-8334; Koehler, Paul/0000-0002-6717-0771; Domingo-Pardo, Cesar/0000-0002-2915-5466 NR 10 TC 0 Z9 0 U1 0 U2 16 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1904 EP 1907 DI 10.3938/jkps.59.1904 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700109 ER PT J AU Paradela, C Tassan-Got, L Audouin, L Berthier, B Ferrant, L Isaev, S Le Naour, C Stephan, C Trubert, D David, S Duran, I Tarrio, D Alvarez, H Abbondanno, U Fujii, K Milazzo, PM Moreau, C Aerts, G Alvarez-Velarde, F Cano-Ott, D Embid-Segura, M Gonzalez-Romero, E Guerrero, C Martinez, T Villamarin, D Vicente, MC Andriamonje, S Berthoumieux, E Dridi, W Gunsing, F Pancin, J Perrot, L Plukis, A Andrzejewski, J Marganiec, J Assimakopoulos, P Karadimos, D Karamanis, D Papachristodoulou, C Patronis, N Badurek, G Jericha, E Leeb, H Oberhummer, H Pigni, MT Baumann, P Kerveno, M Lukic, S Rudolf, G Becvar, F Krticka, M Calvino, F Cortes, G Poch, A Pretel, C Calviani, M Gramegna, F Mastinu, P Praena, J Capote, R Carrapico, C Cennini, P Chiaveri, E Dahlfors, M Ferrari, A Herrera-Martinez, A Kadi, Y Sarchiapone, L Vlachoudis, V Chepel, V Ferreira-Marques, R Lindote, A Lopes, I Neves, F Colonna, N Tagliente, G Terlizzi, R Couture, A Cox, J Marrone, S O'Brien, S Wiescher, M Dillmann, I Heil, M Kaeppeler, F Mosconi, M Voss, F Walter, S Wisshak, K Domingo-Pardo, C Plag, R Plompen, A Tain, JL Eleftheriadis, C Savvidis, I Furman, W Goncalves, I Salgado, J Santos, C Tavora, L Vaz, P Haas, B Haight, R Reifarth, R Igashira, M Koehler, P Kossionides, E Lampoudis, C Lozano, M Quesada, J Massimi, C Vannini, G Mengoni, A Oshima, M Papadopoulos, C Pavlix, A Pavlopoulos, P Vlastou, R Rauscher, T Rubbia, C Rullhusen, P Ventura, A AF Paradela, C. Tassan-Got, L. Audouin, L. Berthier, B. Ferrant, L. Isaev, S. Le Naour, C. Stephan, C. Trubert, D. David, S. Duran, I. Tarrio, D. Alvarez, H. Abbondanno, U. Fujii, K. Milazzo, P. M. Moreau, C. Aerts, G. Alvarez-Velarde, F. Cano-Ott, D. Embid-Segura, M. Gonzalez-Romero, E. Guerrero, C. Martinez, T. Villamarin, D. Vicente, M. C. Andriamonje, S. Berthoumieux, E. Dridi, W. Gunsing, F. Pancin, J. Perrot, L. Plukis, A. Andrzejewski, J. Marganiec, J. Assimakopoulos, P. Karadimos, D. Karamanis, D. Papachristodoulou, C. Patronis, N. Badurek, G. Jericha, E. Leeb, H. Oberhummer, H. Pigni, M. T. Baumann, P. Kerveno, M. Lukic, S. Rudolf, G. Becvar, F. Krticka, M. Calvino, F. Cortes, G. Poch, A. Pretel, C. Calviani, M. Gramegna, F. Mastinu, P. Praena, J. Capote, R. Carrapico, C. Cennini, P. Chiaveri, E. Dahlfors, M. Ferrari, A. Herrera-Martinez, A. Kadi, Y. Sarchiapone, L. Vlachoudis, V. Chepel, V. Ferreira-Marques, R. Lindote, A. Lopes, I. Neves, F. Colonna, N. Tagliente, G. Terlizzi, R. Couture, A. Cox, J. Marrone, S. O'Brien, S. Wiescher, M. Dillmann, I. Heil, M. Kaeppeler, F. Mosconi, M. Voss, F. Walter, S. Wisshak, K. Domingo-Pardo, C. Plag, R. Plompen, A. Tain, J. L. Eleftheriadis, C. Savvidis, I. Furman, W. Goncalves, I. Salgado, J. Santos, C. Tavora, L. Vaz, P. Haas, B. Haight, R. Reifarth, R. Igashira, M. Koehler, P. Kossionides, E. Lampoudis, C. Lozano, M. Quesada, J. Massimi, C. Vannini, G. Mengoni, A. Oshima, M. Papadopoulos, C. Pavlix, A. Pavlopoulos, P. Vlastou, R. Rauscher, T. Rubbia, C. Rullhusen, P. Ventura, A. CA n TOF Collaboration TI Np-237(n,f) Cross Section: New Data and Present Status SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Nuclear data; Neutron-induced fission reactions; Np-237; n_TOF experiment ID NUCLEAR-DATA LIBRARY; ENERGY; PU-239; U-233 AB In this document, we present the final result obtained at the n_TOF experiment; for the neutron-induced fission cross section of the Np-237, from the fission threshold up to 1 GeV. The method applied to get tins result is briefly discussed. n_TOF data are compared to the last experimental measurements using other TOF facilities or the surrogate method, reported experiments performed with monoenergetic sources and the FISCAL systematic, including a discussion about the existing discrepancies. C1 [Paradela, C.] Univ Santiago de Compostela, Fac Fis, Santiago De Compostela 15782, Spain. [Tassan-Got, L.; Audouin, L.; Berthier, B.; Ferrant, L.; Isaev, S.; Le Naour, C.; Stephan, C.; Trubert, D.; David, S.; Duran, I.] Ctr Natl Rech Sci IN2P3 IPN, Orsay, France. [Calviani, M.; Gramegna, F.; Mastinu, P.; Praena, J.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Trieste, Italy. [Aerts, G.] CEA Saclay, IRFU, F-91191 Gif Sur Yvette, France. [Alvarez-Velarde, F.; Cano-Ott, D.; Embid-Segura, M.; Gonzalez-Romero, E.; Guerrero, C.; Martinez, T.; Villamarin, D.; Vicente, M. C.] Ctr Invest Energet Medioambientales & Tecnol, Madrid, Spain. [Andriamonje, S.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A.; Carrapico, C.; Lampoudis, C.] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France. [Andrzejewski, J.; Marganiec, J.] Univ Lodz, PL-90131 Lodz, Poland. [Assimakopoulos, P.; Karadimos, D.; Karamanis, D.; Papachristodoulou, C.; Patronis, N.] Univ Ioannina, GR-45110 Ioannina, Greece. [Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Pigni, M. T.] Tech Univ, Atominst Osterreich Univ, Vienna, Austria. [Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.] Ctr Natl Rech Sci IN2P3 IreS, Strasbourg, France. [Becvar, F.; Krticka, M.] Charles Univ Prague, Prague, Czech Republic. [Calvino, F.; Cortes, G.; Poch, A.; Pretel, C.] Univ Politecn Cataluna, Barcelona, Spain. [Capote, R.; Mengoni, A.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Capote, R.; Lozano, M.; Quesada, J.] Univ Seville, Seville, Spain. [Carrapico, C.; Salgado, J.; Santos, C.; Tavora, L.; Vaz, P.] Inst Tecnol & Nucl ITN, Lisbon, Portugal. [Cennini, P.; Chiaveri, E.; Dahlfors, M.; Ferrari, A.; Herrera-Martinez, A.; Kadi, Y.; Sarchiapone, L.; Vlachoudis, V.; Mengoni, A.] CERN, Geneva, Switzerland. [Chepel, V.; Ferreira-Marques, R.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, Dept Fis, LIP Coimbra, P-3000 Coimbra, Portugal. [Colonna, N.; Tagliente, G.; Terlizzi, R.] Ist Nazl Fis Nucl, I-70126 Bari, Italy. [Couture, A.; Cox, J.; Marrone, S.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Dillmann, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Voss, F.; Walter, S.; Wisshak, K.] Forschungszentrum Karlsruhe GmbH FZK, Inst Kernphys, Karlsruhe, Germany. [Domingo-Pardo, C.; Plag, R.; Plompen, A.; Tain, J. L.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain. [Eleftheriadis, C.; Savvidis, I.; Lampoudis, C.] Aristotle Univ Thessaloniki, Thessaloniki, Greece. [Furman, W.] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna, Russia. [Haas, B.] Ctr Natl Rech Sci IN2P3 CENBG, Bordeaux, France. [Haight, R.; Reifarth, R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Igashira, M.] Tokyo Inst Technol, Tokyo 152, Japan. [Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Kossionides, E.] NCSR Demokritos, Athens, Greece. [Massimi, C.; Vannini, G.] Univ Bologna, Dipartamento Fis, Sez INFN Bologna, I-40126 Bologna, Italy. [Oshima, M.] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan. [Papadopoulos, C.] Natl Tech Univ Athens, GR-10682 Athens, Greece. [Pavlix, A.] Univ Vienna, Fak Phys, A-1010 Vienna, Austria. [Pavlopoulos, P.; Vlastou, R.] Pole Univ Leonard de Vinci, Paris, La Defense, France. [Rauscher, T.] Univ Basel, Dept Phys, CH-4003 Basel, Switzerland. [Rubbia, C.] Univ Pavia, I-27100 Pavia, Italy. [Rullhusen, P.] CEC JRC IRMM, Geel, Belgium. [Ventura, A.] ENEA, Bologna, Italy. RP Paradela, C (reprint author), Univ Santiago de Compostela, Fac Fis, Santiago De Compostela 15782, Spain. EM carlos.paradela@usc.es RI Gramegna, Fabiana/B-1377-2012; Calvino, Francisco/K-5743-2014; Mengoni, Alberto/I-1497-2012; Cano Ott, Daniel/K-4945-2014; Quesada Molina, Jose Manuel/K-5267-2014; Guerrero, Carlos/L-3251-2014; Gonzalez Romero, Enrique/L-7561-2014; Pretel Sanchez, Carme/L-8287-2014; Martinez, Trinitario/K-6785-2014; Capote Noy, Roberto/M-1245-2014; Massimi, Cristian/B-2401-2015; Duran, Ignacio/H-7254-2015; Alvarez Pol, Hector/F-1930-2011; Massimi, Cristian/K-2008-2015; Paradela, Carlos/J-1492-2012; Lopes, Isabel/A-1806-2014; Cortes, Guillem/B-6869-2014; Tain, Jose L./K-2492-2014; Becvar, Frantisek/D-3824-2012; Jericha, Erwin/A-4094-2011; Chepel, Vitaly/H-4538-2012; Ventura, Alberto/B-9584-2011; Rauscher, Thomas/D-2086-2009; Lindote, Alexandre/H-4437-2013; Neves, Francisco/H-4744-2013; Goncalves, Isabel/J-6954-2013; Vaz, Pedro/K-2464-2013 OI Tarrio, Diego/0000-0002-9858-3341; Marques, Rui/0000-0003-3549-8198; Gramegna, Fabiana/0000-0001-6112-0602; Calvino, Francisco/0000-0002-7198-4639; Mengoni, Alberto/0000-0002-2537-0038; Pavlik, Andreas/0000-0001-7526-3372; Goncalves, Isabel/0000-0002-1997-955X; Chepel, Vitaly/0000-0003-0675-4586; Lozano Leyva, Manuel Luis/0000-0003-2853-4103; Paradela Dobarro, Carlos/0000-0003-0175-8334; Domingo-Pardo, Cesar/0000-0002-2915-5466; Cano Ott, Daniel/0000-0002-9568-7508; Quesada Molina, Jose Manuel/0000-0002-2038-2814; Guerrero, Carlos/0000-0002-2111-546X; Gonzalez Romero, Enrique/0000-0003-2376-8920; Martinez, Trinitario/0000-0002-0683-5506; Capote Noy, Roberto/0000-0002-1799-3438; Massimi, Cristian/0000-0001-9792-3722; Alvarez Pol, Hector/0000-0001-9643-6252; Massimi, Cristian/0000-0003-2499-5586; Lopes, Isabel/0000-0003-0419-903X; Jericha, Erwin/0000-0002-8663-0526; Ventura, Alberto/0000-0001-6748-7931; Rauscher, Thomas/0000-0002-1266-0642; Lindote, Alexandre/0000-0002-7965-807X; Neves, Francisco/0000-0003-3635-1083; Vaz, Pedro/0000-0002-7186-2359 FU EC [FIKW-CT-2000-00107]; CPAN [CPAN09-PD14] FX This work was supported by the EC under the contract Nr. FIKW-CT-2000-00107 and by the CPAN under the contract CPAN09-PD14. NR 19 TC 4 Z9 4 U1 0 U2 16 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1908 EP 1911 DI 10.3938/jkps.59.1908 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700110 ER PT J AU Calviani, M Andriamonje, S Chiaveri, E Vlachoudis, V Colonna, N Meaze, MH Marrone, S Tagliente, G Terlizzi, R Belloni, F Abbondanno, U Fujii, K Milazzo, PM Moreau, C Aerts, G Berthoumieux, E Dridi, W Gunsing, F Pancin, J Perrot, L Plukis, A Alvarez, H Duran, I Paradela, C Alvarez-Velarde, F Cano-Ott, D Gonzalez-Romero, E Guerrero, C Martinez, T Villamarin, D Vicente, MC Andrzejewski, J Marganiec, J Assimakopoulos, P Karadimos, D Karamanis, D Papachristodoulou, C Patronis, N Audouin, L David, S Ferrant, L Isaev, S Stephan, C Tassan-Got, L Badurek, G Jericha, E Leeb, H Oberhummer, H Pigni, MT Baumann, P Kerveno, M Lukic, S Rudolf, G Becvar, F Krticka, M Calvino, F Capote, R De Albornoz, AC Marques, L Salgado, J Tavora, L Vaz, P Cennini, P Dahlfors, M Ferrari, A Gramegna, F Herrera-Martinez, A Kadi, Y Mastinu, P Praena, J Sarchiapone, L Wendler, H Chepel, V Ferreira-Marques, R Goncalves, I Lindote, A Lopes, I Neves, F Cortes, G Poch, A Pretel, C Couture, A Cox, J O'Brien, S Wiescher, M Dillman, I Heil, M Kaeppeler, F Mosconi, M Plag, R Voss, F Walter, S Wisshak, K Dolfini, R Rubbia, C Domingo-Pardo, C Tain, JL Eleftheriadis, C Savvidis, I Frais-Koelbl, H Griesmayer, E Furman, W Konovalov, V Goverdovski, A Ketlerov, V Haas, B Haight, R Reifarth, R Igashira, M Koehler, P Kossionides, E Lampoudis, C Lozano, M Quesada, J Massimi, C Vannini, G Mengoni, A Oshima, M Papadopoulos, C Vlastou, R Pavlik, A Pavlopoulos, P Plompen, A Rullhusen, P Rauscher, T Rosetti, M Ventura, A AF Calviani, M. Andriamonje, S. Chiaveri, E. Vlachoudis, V. Colonna, N. Meaze, M. H. Marrone, S. Tagliente, G. Terlizzi, R. Belloni, F. Abbondanno, U. Fujii, K. Milazzo, P. M. Moreau, C. Aerts, G. Berthoumieux, E. Dridi, W. Gunsing, F. Pancin, J. Perrot, L. Plukis, A. Alvarez, H. Duran, I. Paradela, C. Alvarez-Velarde, F. Cano-Ott, D. Gonzalez-Romero, E. Guerrero, C. Martinez, T. Villamarin, D. Vicente, M. C. Andrzejewski, J. Marganiec, J. Assimakopoulos, P. Karadimos, D. Karamanis, D. Papachristodoulou, C. Patronis, N. Audouin, L. David, S. Ferrant, L. Isaev, S. Stephan, C. Tassan-Got, L. Badurek, G. Jericha, E. Leeb, H. Oberhummer, H. Pigni, M. T. Baumann, P. Kerveno, M. Lukic, S. Rudolf, G. Becvar, F. Krticka, M. Calvino, F. Capote, R. De Albornoz, A. Carrillo Marques, L. Salgado, J. Tavora, L. Vaz, P. Cennini, P. Dahlfors, M. Ferrari, A. Gramegna, F. Herrera-Martinez, A. Kadi, Y. Mastinu, P. Praena, J. Sarchiapone, L. Wendler, H. Chepel, V. Ferreira-Marques, R. Goncalves, I. Lindote, A. Lopes, I. Neves, F. Cortes, G. Poch, A. Pretel, C. Couture, A. Cox, J. O'Brien, S. Wiescher, M. Dillman, I. Heil, M. Kaeppeler, F. Mosconi, M. Plag, R. Voss, F. Walter, S. Wisshak, K. Dolfini, R. Rubbia, C. Domingo-Pardo, C. Tain, J. L. Eleftheriadis, C. Savvidis, I. Frais-Koelbl, H. Griesmayer, E. Furman, W. Konovalov, V. Goverdovski, A. Ketlerov, V. Haas, B. Haight, R. Reifarth, R. Igashira, M. Koehler, P. Kossionides, E. Lampoudis, C. Lozano, M. Quesada, J. Massimi, C. Vannini, G. Mengoni, A. Oshima, M. Papadopoulos, C. Vlastou, R. Pavlik, A. Pavlopoulos, P. Plompen, A. Rullhusen, P. Rauscher, T. Rosetti, M. Ventura, A. CA n TOF Collaboration TI Fission Cross-section Measurements of U-233, Cm-245 and Am-241,Am-243 at CERN n_TOF Facility SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE ND2010; Nuclear data; ENDF; n_TOF; Neutron-induced fission reactions; Am; Cm; U AB Neutron-induced fission cross-sections of minor actinides have been measured using the n_TOF white neutron source at CERN. Geneva, as part of a large experimental program aiming at collecting new data relevant for nuclear astrophysics and for the design of advanced reactor systems. The measurements at n_TOF take advantage of the innovative features of the n_TOF facility, namely the wide energy range, high instantaneous neutron flux and good energy resolution. Final results on the fission cross-section of U-233, (245)cm and Am-243 from thermal to 20 MeV are here reported, together with preliminary results for Am-241. The measurement have been performed with a dedicated Fast Ionization Chamber (FIC), a fission fragment detector with a very high efficiency, relative to the very well known cross-section of U-235, measured simultaneously with the same detector. C1 [Calviani, M.; Andriamonje, S.; Chiaveri, E.; Vlachoudis, V.] CERN, Geneva, Switzerland. [Colonna, N.; Meaze, M. H.; Marrone, S.; Tagliente, G.; Terlizzi, R.] Ist Nazl Fis Nucl, I-70126 Bari, Italy. [Belloni, F.; Abbondanno, U.; Fujii, K.; Milazzo, P. M.; Moreau, C.] Ist Nazl Fis Nucl, Trieste, Italy. [Aerts, G.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A.; Lampoudis, C.] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France. [Alvarez, H.; Duran, I.; Paradela, C.] Univ Santiago de Compostela, Santiago De Compostela, Spain. [Alvarez-Velarde, F.; Cano-Ott, D.; Gonzalez-Romero, E.; Guerrero, C.; Martinez, T.; Villamarin, D.; Vicente, M. C.] Ctr Invest Energet Medioambientales & Technol CIE, Madrid, Spain. [Andrzejewski, J.; Marganiec, J.] Univ Lodz, PL-90131 Lodz, Poland. [Assimakopoulos, P.; Karadimos, D.; Karamanis, D.; Papachristodoulou, C.; Patronis, N.] Univ Ioannina, GR-45110 Ioannina, Greece. [Audouin, L.; David, S.; Ferrant, L.; Isaev, S.; Stephan, C.; Tassan-Got, L.] Ctr Natl Rech Sci IN2R3 IPN, Orsay, France. [Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H.; Pigni, M. T.] Vienna Univ Technol, Atominst Osterreich Univ, Vienna, Austria. [Baumann, P.; Kerveno, M.; Lukic, S.; Rudolf, G.] Ctr Natl Rech Sci IN2P3 IReS, Strasbourg, France. [Becvar, F.; Krticka, M.] Charles Univ Prague, Prague, Czech Republic. [Calvino, F.] Univ Politecn Madrid, Madrid, Spain. [Capote, R.; Frais-Koelbl, H.; Griesmayer, E.; Mengoni, A.] IAEA, Nucl Data Sect, A-1400 Vienna, Austria. [Capote, R.; Lozano, M.; Quesada, J.] Univ Seville, Seville, Spain. [De Albornoz, A. Carrillo; Marques, L.; Salgado, J.; Tavora, L.; Vaz, P.] ITN, Lisbon, Portugal. [Cennini, P.; Dahlfors, M.; Ferrari, A.; Gramegna, F.; Herrera-Martinez, A.; Kadi, Y.; Mastinu, P.; Praena, J.; Sarchiapone, L.; Wendler, H.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy. [Chepel, V.; Ferreira-Marques, R.; Goncalves, I.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, Dept Fis, P-3000 Coimbra, Portugal. [Chepel, V.; Ferreira-Marques, R.; Goncalves, I.; Lindote, A.; Lopes, I.; Neves, F.] Univ Coimbra, LIP Coimbra, P-3000 Coimbra, Portugal. [Cortes, G.; Poch, A.; Pretel, C.] Univ Politecn Cataluna, Barcelona, Spain. [Couture, A.; Cox, J.; O'Brien, S.; Wiescher, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Dillman, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Plag, R.; Voss, F.; Walter, S.; Wisshak, K.] Forschungszentrum Karlsruhe GmbH FZK, Inst Kernphys, Karlsruhe, Germany. [Dolfini, R.; Rubbia, C.] Univ Pavia, I-27100 Pavia, Italy. [Domingo-Pardo, C.; Tain, J. L.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46003 Valencia, Spain. [Eleftheriadis, C.; Savvidis, I.; Lampoudis, C.] Aristotle Univ Thessaloniki, Thessaloniki, Greece. [Furman, W.; Konovalov, V.] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna, Russia. [Goverdovski, A.; Ketlerov, V.] Inst Phys & Power Engn, Obninsk, Kaluga Region, Russia. [Haas, B.] Ctr Natl Rech Sci IN2P3 CENBG, Bordeaux, France. [Haight, R.; Reifarth, R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Igashira, M.] Tokyo Inst Technol, Tokyo 152, Japan. [Koehler, P.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Kossionides, E.] NCSR Demokritos, Athens, Greece. [Massimi, C.; Vannini, G.] Univ Bologna, Dipartimento Fis, Sez INFN Bologna, I-40126 Bologna, Italy. [Mengoni, A.; Rosetti, M.; Ventura, A.] ENEA, Bologna, Italy. [Oshima, M.] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan. [Papadopoulos, C.; Vlastou, R.] Natl Tech Univ Athens, GR-10682 Athens, Greece. [Pavlik, A.] Univ Vienna, Inst Isotopenforsch & Kernphys, A-1010 Vienna, Austria. [Pavlopoulos, P.] Pole Univ Leonard de Vinci, Paris, France. [Plompen, A.; Rullhusen, P.] CEG JRC IRMM, Geel, Belgium. [Rauscher, T.] Univ Basel, Dept Phys & Astron, Basel, Switzerland. RP Calviani, M (reprint author), CERN, Geneva, Switzerland. EM marco.calviani@cern.ch RI Paradela, Carlos/J-1492-2012; Calvino, Francisco/K-5743-2014; Mengoni, Alberto/I-1497-2012; Cano Ott, Daniel/K-4945-2014; Quesada Molina, Jose Manuel/K-5267-2014; Gramegna, Fabiana/B-1377-2012; Guerrero, Carlos/L-3251-2014; Gonzalez Romero, Enrique/L-7561-2014; Pretel Sanchez, Carme/L-8287-2014; Martinez, Trinitario/K-6785-2014; Capote Noy, Roberto/M-1245-2014; Massimi, Cristian/B-2401-2015; Duran, Ignacio/H-7254-2015; Alvarez Pol, Hector/F-1930-2011; Massimi, Cristian/K-2008-2015; Neves, Francisco/H-4744-2013; Goncalves, Isabel/J-6954-2013; Vaz, Pedro/K-2464-2013; Lopes, Isabel/A-1806-2014; Cortes, Guillem/B-6869-2014; Tain, Jose L./K-2492-2014; Becvar, Frantisek/D-3824-2012; Jericha, Erwin/A-4094-2011; Chepel, Vitaly/H-4538-2012; Ventura, Alberto/B-9584-2011; Rauscher, Thomas/D-2086-2009; Lindote, Alexandre/H-4437-2013 OI Marques, Rui/0000-0003-3549-8198; Calvino, Francisco/0000-0002-7198-4639; Mengoni, Alberto/0000-0002-2537-0038; Pavlik, Andreas/0000-0001-7526-3372; Goncalves, Isabel/0000-0002-1997-955X; Chepel, Vitaly/0000-0003-0675-4586; Lozano Leyva, Manuel Luis/0000-0003-2853-4103; Domingo-Pardo, Cesar/0000-0002-2915-5466; Cano Ott, Daniel/0000-0002-9568-7508; Quesada Molina, Jose Manuel/0000-0002-2038-2814; Gramegna, Fabiana/0000-0001-6112-0602; Guerrero, Carlos/0000-0002-2111-546X; Gonzalez Romero, Enrique/0000-0003-2376-8920; Martinez, Trinitario/0000-0002-0683-5506; Capote Noy, Roberto/0000-0002-1799-3438; Massimi, Cristian/0000-0001-9792-3722; Alvarez Pol, Hector/0000-0001-9643-6252; Massimi, Cristian/0000-0003-2499-5586; Neves, Francisco/0000-0003-3635-1083; Vaz, Pedro/0000-0002-7186-2359; Lopes, Isabel/0000-0003-0419-903X; Jericha, Erwin/0000-0002-8663-0526; Ventura, Alberto/0000-0001-6748-7931; Rauscher, Thomas/0000-0002-1266-0642; Lindote, Alexandre/0000-0002-7965-807X NR 16 TC 2 Z9 2 U1 1 U2 20 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1912 EP 1915 DI 10.3938/jkps.59.1912 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700111 ER PT J AU Boutoux, G Jurado, B Meot, V Aiche, M Bail, A Barreau, G Bauge, E Burke, JT Capellan, N Companis, I Czajkowski, S Daugas, JM Dassie, D Derkx, X Faul, T Haas, B Gaudefroy, L Gunsing, F Matea, I Mathieu, L Morel, P Pillet, N Porquet, MG Roig, O Romain, P Serot, O Taieb, J Tassan-Got, L Theroine, C AF Boutoux, G. Jurado, B. Meot, V. Aiche, M. Bail, A. Barreau, G. Bauge, E. Burke, J. T. Capellan, N. Companis, I. Czajkowski, S. Daugas, J. M. Dassie, D. Derkx, X. Faul, T. Haas, B. Gaudefroy, L. Gunsing, F. Matea, I. Mathieu, L. Morel, P. Pillet, N. Porquet, M. G. Roig, O. Romain, P. Serot, O. Taieb, J. Tassan-Got, L. Theroine, C. TI Neutron-induced Capture Cross Sections via the Surrogate Reaction Method SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Surrogate reaction method; Capture (n,gamma) cross sections ID TRANSFER-REACTION TH-232(HE-3; PA-233(N; P)PA-234 AB The surrogate reaction method is an indirect way of determining cross sections for nuclear reactions that proceed through a compound nucleus. This technique enables neutron-induced cross sections to be extracted for nuclear reactions on short-lived unstable nuclei that otherwise can not be measured. This technique has been succesfully applied to determine the neutron-induced fission cross sections of several short-lived nuclei. In this work, we investigate whether this powerful technique can also be used to determine of neutron-induced capture cross sections. For this purpose we use the surrogate reaction Yb-174(He-3,p gamma)Lu-176 to infer the well known Lu-175(n,gamma) cross section and compare the results with the directly measured neutron-induced data. This surrogate experiment has been performed in March 2010. The experimental technique used and the first preliminary results will be presented. C1 [Boutoux, G.; Jurado, B.; Aiche, M.; Barreau, G.; Capellan, N.; Companis, I.; Czajkowski, S.; Dassie, D.; Haas, B.; Mathieu, L.] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France. [Meot, V.; Bail, A.; Bauge, E.; Daugas, J. M.; Faul, T.; Gaudefroy, L.; Morel, P.; Pillet, N.; Roig, O.; Romain, P.; Taieb, J.; Theroine, C.] CEA DAM DIF, F-91297 Arpajon, France. [Burke, J. T.] US DOE, Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Companis, I.] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest 077125, Romania. [Derkx, X.] Grand Accelerateur Natl Ions Lourds, F-14076 Caen 05, France. [Gunsing, F.] CEA Saclay, DSM DAPNIA SPhN, F-91191 Gif Sur Yvette, France. [Matea, I.; Tassan-Got, L.] Inst Phys Nucl, F-91406 Orsay, France. [Porquet, M. G.] Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91406 Orsay, France. [Serot, O.] CEA Cadarache, DEN DER SPRC LEPh, F-13108 St Paul Les Durance, France. RP Boutoux, G (reprint author), Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, Chemin Solarium, F-33175 Gradignan, France. EM boutoux@cenbg.in2p3.fr RI Junghans, Arnd/D-4596-2012; Burke, Jason/I-4580-2012 FU CNRS; EURATOM 6. Framework Programme "European Facilities for Nuclear Data Measurements" (EFNUDAT) [FP6-036434] FX The use of detectors from the Gammapool European Spectroscopy and France-UK (IN2P3/STFC) Loan-Pool Ressources through the ORGAM (Orsay Gamma Array) project is gratefully acknowledged. This work was supported by the CNRS program PACEN/GEDEPEON and the EURATOM 6. Framework Programme "European Facilities for Nuclear Data Measurements" (EFNUDAT), contract number FP6-036434. NR 13 TC 0 Z9 0 U1 1 U2 3 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1924 EP 1927 DI 10.3938/jkps.59.1924 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700114 ER PT J AU Youinou, G Palmiotti, G McGrath, C Imel, G Paul, M Pardo, R Kondev, F Salvatores, M AF Youinou, G. Palmiotti, G. McGrath, C. Imel, G. Paul, M. Pardo, R. Kondev, F. Salvatores, M. TI MANTRA: An Integral Reactor Physics Experiment to Infer Actinide Capture Cross-sections from Thorium to Californium with Accelerator Mass Spectrometry SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Integral experiment; Actinide capture cross-sections; AMS; ATR ID ATLAS AB The principle of the proposed experiment is to irradiate very pure actinide samples in the Advanced Test Reactor at INL and, after a given time, determine the amount of the different transmutation products. The determination of the nuclide densities before and after neutron irradiation will allow inference of effective neutron capture cross-sections. This approach has been used in the past and the novelty of this experiment is that the atom densities of the different transmutation products will be determined using the Accelerator Mass Spectrometry technique at the ATLAS facility located at ANL. It is currently planned to irradiate the following isotopes: Th-232, U-235, U-236, U-238, Np-237, Pu-238, Pu-239, Pu-240, Pu-241, Pu-242, Am-241, Am-243, Cm-244 and Cm-248. C1 [Youinou, G.; Palmiotti, G.; McGrath, C.; Salvatores, M.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Imel, G.] Idaho State Univ, Pocatello, ID 83209 USA. [Pardo, R.; Kondev, F.; Salvatores, M.] Argonne Natl Lab, Argonne, IL 60439 USA. [Salvatores, M.] CEA Cadarache, F-13108 St Paul Les Durance, France. RP Youinou, G (reprint author), Idaho Natl Lab, 2525 Fremont Ave, Idaho Falls, ID 83415 USA. EM gilles.youinou@inl.gov RI McGrath, Christopher/E-8995-2013 FU U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under DOE Idaho Operations Office [DE-AC07-05ID14517]; ANL [DE-AC02-06CH11357]; ATR National Scientific User Facility FX This work is supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under DOE Idaho Operations Office Contract DE-AC07-05ID14517 as well as by the ANL Contract DE-AC02-06CH11357 and by the ATR National Scientific User Facility. The help provided by Antoine Petiot, summer intern from the Ecole des Mines de Paris supervised by Joseph Nielsen from the Irradiation Testing Department at INL, as well as Chris Glass, in running the MCNP calculations is gratefully acknowledged. The involvement of Mitchell Meyer, scientific program manager at ATR-NSUF is also gratefully acknowledged. NR 6 TC 6 Z9 6 U1 1 U2 2 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 1940 EP 1944 DI 10.3938/jkps.59.1940 PN 3 PG 5 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700118 ER PT J AU Matsuda, N Kasugai, Y Sakamoto, Y Nakashima, H Matsumura, H Iwase, H Kinoshita, N Hirayama, H Yashima, H Mokhov, N Levering, A Boehnlein, D Vazili, K Gary, L Wayne, S Oishi, K Nakamura, T Ishibashi, K Niita, K AF Matsuda, N. Kasugai, Y. Sakamoto, Y. Nakashima, H. Matsumura, H. Iwase, H. Kinoshita, N. Hirayama, H. Yashima, H. Mokhov, N. Levering, A. Boehnlein, D. Vazili, K. Gary, L. Wayne, S. Oishi, K. Nakamura, T. Ishibashi, K. Niita, K. TI Shielding Experiments under JASMIN Collaboration at Fermilab (IV) Measurement and Analyses of High-energy Neutron Spectra in the Anti-proton Target Station SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Shielding experiment; Fermilab; Anti-proton target station; Activation; Neutron spectra; Unfolding; PHITS AB Neutron spectra in high-energy region between 1 and 100 MeV in the shield configuration of the anti-proton target station and a 120-GeV proton beam at Fermi National Accelerator Laboratory (Fermi lab) were determined using the reaction rate data obtained with the multi-foil activation method. Two kinds of methods were employed for the determination of neutron spectra: one is the fitting method which is newly developed in this work, another is the unfolding method with SAND-II code. The calculations were performed using the PHITS. From the comparison between the calculated and experimental neutron spectra, it concluded that the PHITS can be used for shielding design of highenergy proton accelerators. C1 [Matsuda, N.; Kasugai, Y.; Sakamoto, Y.; Nakashima, H.] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan. [Matsumura, H.; Iwase, H.; Kinoshita, N.; Hirayama, H.] High Energy Accelerator Org, Tsukuba, Ibaraki 3050801, Japan. [Yashima, H.] Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan. [Mokhov, N.; Levering, A.; Boehnlein, D.; Vazili, K.; Gary, L.; Wayne, S.] Fermilab Natl Accelerator Lab, Batavia, IL USA. [Oishi, K.] Shimizu Corp, Koto Ku, Tokyo 1358530, Japan. [Nakamura, T.] Tohoku Univ, Aoba Ku, Sendai, Miyagi 9808578, Japan. [Ishibashi, K.] Kyushu Univ, Fukuoka 8190935, Japan. [Niita, K.] Res Org Informat Sci & Technol, Tokai, Ibaraki 3191106, Japan. RP Matsuda, N (reprint author), Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan. EM matsuda.norihiro@jaea.go.jp FU ministry of education in Japan [KAKENHI 19360432, 20354764]; Fermi Research Alliance, LLC [DE-AC02-07CH11359] FX This work is supported by grant aid of ministry of education (KAKENHI 19360432 and 20354764) in Japan. Fermilab is a U.S. Department of Energy Laboratory opened under construct DE-AC02-07CH11359 by Fermi Research Alliance, LLC. NR 6 TC 0 Z9 0 U1 1 U2 4 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 2055 EP 2058 DI 10.3938/jkps.59.2055 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700147 ER PT J AU Matsumura, H Kinoshita, N Iwase, H Toyoda, A Kasugai, Y Matsuda, N Sakamoto, Y Nakashima, H Yashima, H Mokhov, N Leveling, A Boehnlein, D Vazili, K Lautenschlager, G Schmitt, W Oishi, K AF Matsumura, Hiroshi Kinoshita, Norikazu Iwase, Hiroshi Toyoda, Akihiro Kasugai, Yoshimi Matsuda, Norihiro Sakamoto, Yukio Nakashima, Hiroshi Yashima, Hiroshi Mokhov, Nikolai Leveling, Anthony Boehnlein, David Vazili, Kamran Lautenschlager, Gary Schmitt, Wayne Oishi, Koji TI Shielding Experiments under JASMIN Collaboration at Fermilab (III): Measurement of High-energy Neutrons Penetrating a Thick Iron Shield from the Antiproton Production Target by Au Activation Method SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE JASMIN; Shielding experiment; Neutron transport; Au activation method ID SPALLATION PRODUCTS; PARTICLE; LABSOCS; SAMPLES AB In an antiproton production (Pbar) target station of the Fermi National Accelerator Laboratory (FNAL), the secondary particles produced by bombarding a target with 120-GeV protons are shielded by a thick iron shield. In order to obtain experimental data on high-energy neutron transport at more than 100-GeV-proton accelerator facilities, we indirectly measured more than 100-MeV neutrons at the outside of the iron shield at an angle of 50 degrees in the Pbar target station. The measurement was performed by using the Au activation method coupled with a low-background gamma-ray counting system. As an indicator for the neutron flux, we determined the production rates of 8 spoliation nuclides (Au-196, Pt-188, Ir-189, Os-185, Hf-175, Lu-173, Lu-171, and Yb-169) in the Au activation detector. The measured production rates were compared with the theoretical production rates calculated using PHITS. We proved that the Au activation method can serve as a powerful tool for indirect measurements of more than100-MeV neutrons that play a vital role in neutron transport. These results will be important for clarifying the problems in theoretical calculations of high-energy neutron transport. C1 [Matsumura, Hiroshi; Kinoshita, Norikazu; Iwase, Hiroshi; Toyoda, Akihiro] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Kasugai, Yoshimi; Matsuda, Norihiro; Sakamoto, Yukio; Nakashima, Hiroshi] Japan Atom Energy Agcy, Ibaraki 3191195, Japan. [Yashima, Hiroshi] Kyoto Univ, Inst Res Reactor, Kumatori, Osaka 5900494, Japan. [Mokhov, Nikolai; Leveling, Anthony; Boehnlein, David; Vazili, Kamran; Lautenschlager, Gary; Schmitt, Wayne] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Matsumura, H (reprint author), High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. EM hiroshi.matsumura@kek.jp FU Ministry of Education, Japan [KAKENHI 19360432, 20354764]; Fermi Research Alliance, LLC [DE-AC02-07CH11359] FX This work was supported by a Grant-in-Aid from the Ministry of Education (KAKENHI 19360432 and 20354764), Japan. Fermi lab is a U.S. Department of Energy Laboratory operated under Contract DE-AC02-07CH11359 by Fermi Research Alliance, LLC. NR 12 TC 0 Z9 0 U1 1 U2 2 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 2059 EP 2062 DI 10.3938/jkps.59.2059 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700148 ER PT J AU Kasugai, Y Matsuda, N Iwamoto, Y Sakamoto, Y Nakashima, H Matsumura, H Kinoshita, N Iwase, H Sanami, T Hagiwara, M Hirayama, H Yashima, H Sigyo, N Arakawa, H Ishibashi, K Mokhov, N Leveling, A Boehnlein, D Vaziri, K Lauten, G Wayne, S Cupps, V Kershisnik, B Benesch, S Nakamura, T Oishi, K Niita, K AF Kasugai, Y. Matsuda, N. Iwamoto, Y. Sakamoto, Y. Nakashima, H. Matsumura, H. Kinoshita, N. Iwase, H. Sanami, T. Hagiwara, M. Hirayama, H. Yashima, H. Sigyo, N. Arakawa, H. Ishibashi, K. Mokhov, N. Leveling, A. Boehnlein, D. Vaziri, K. Lauten, G. Wayne, S. Cupps, V. Kershisnik, B. Benesch, S. Nakamura, T. Oishi, K. Niita, K. TI Shielding Experiments under JASMIN Collaboration at Fermilab (I) Overview of the Research Activities SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Shielding experiment; Fermilab; Anti-proton target station; Activation; Bonner sphere; Neutron spectra; Unfolding AB Shielding experiments were started on 2007 using high-energy proton accelerator at Fermi National Accelerator Laboratory (Fermilab) under the collaborative study program of JASMIN: Japanese and American Study of Muon Interaction and Neutron Detection. In this series of papers entitled "Shielding experiments under JASMIN collaboration at Fermilab", the part of the results regarding neutron detection has been reported. Tins paper, as a first paper of the series, overview of the research activities are described, and experimental results on high-energy neutron transportation are presented in a viewpoint of neutron attenuation in steel shield and applicability of Moyer's model. In addition, deductions of a neutron spectrum in wide energy range between 1 eV and 100 MeV by means of the hybrid method using the current-readout Bonner sphere together with foil-activation technique are presented. C1 [Kasugai, Y.; Matsuda, N.; Iwamoto, Y.; Sakamoto, Y.; Nakashima, H.] Japan Atom Energy Agcy, Ibaraki 3191195, Japan. [Matsumura, H.; Kinoshita, N.; Iwase, H.; Sanami, T.; Hagiwara, M.; Hirayama, H.] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan. [Yashima, H.] Kyoto Univ, Inst Res Reactor, Osaka 5900495, Japan. [Sigyo, N.; Arakawa, H.; Ishibashi, K.] Kyushu Univ, Fukuoka 8190395, Japan. [Mokhov, N.; Leveling, A.; Boehnlein, D.; Vaziri, K.; Lauten, G.; Wayne, S.; Cupps, V.; Kershisnik, B.; Benesch, S.] Fermilab Natl Accelerator Lab, Batavia, IL USA. [Nakamura, T.] Tohoku Univ, Ctr Cyclotron & Radioisotope, Sendai, Miyagi 9808578, Japan. [Oishi, K.] Shimizu Corp, Tokyo 1358530, Japan. [Niita, K.] Res Org Informat Sci & Technol, Ibaraki 3191195, Japan. RP Kasugai, Y (reprint author), Japan Atom Energy Agcy, Ibaraki 3191195, Japan. EM kausgai.yoshimi@jaea.go.jp RI Iwamoto, Yosuke/G-5959-2012; OI Sanami, Toshiya/0000-0003-2255-8008 FU ministry of education in Japan [KAKENHI 19360432]; Fermi Research Alliance, L.L.C. [DE-AC02-07CH11359] FX This work is supported by grand-aid of ministry of education (KAKENHI 19360432) in Japan. Fermilab is a U.S. Department of Energy Laboratory operated under Contract DE-AC02-07CH11359 by the Fermi Research Alliance, L.L.C. NR 3 TC 1 Z9 1 U1 1 U2 3 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 2063 EP 2066 DI 10.3938/jkps.59.2063 PN 3 PG 4 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700149 ER PT J AU Koehler, PE Harvey, JA Becvar, F Krticka, M Guber, KH AF Koehler, P. E. Harvey, J. A. Becvar, F. Krticka, M. Guber, K. H. TI New Techniques for Determining Spins and Parities of Neutron Resonances and Their Impact on Nuclear Astrophysics SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY LA English DT Article DE Statistical model; Nuclear astrophysics; R-matrix; Porter-thomas distribution ID RADIATIVE-CAPTURE; TH-232; FLUCTUATIONS; PARAMETERS; SM-147 AB We describe new techniques for determining spins and parities of neutron resonances which have resulted in large improvements over previous methods. These advances have made it possible, for the first time, to obtain reduced-neutron- and total-radiation-width distributions separately for resonances of different spin and parity in odd-A target nuclides. Using these new as well as previous data, we show that neutron distributions sometimes are significantly different from the Porter-Thomas distribution assumed by the nuclear statistical model. Furthermore, we show that the radiation-width distributions often are substantially different than predicted by the nuclear statistical model using standard level densities and photon strength functions. These differences could have significant impact on astrophysical reaction rates calculated using the statistical model. C1 [Koehler, P. E.; Harvey, J. A.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Becvar, F.; Krticka, M.] Charles Univ Prague, Fac Math & Phys, CR-18000 Prague 8, Czech Republic. [Guber, K. H.] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Koehler, PE (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. EM koehlerpe@ornl.gov RI Becvar, Frantisek/D-3824-2012; OI Koehler, Paul/0000-0002-6717-0771 FU U.S. Department of Energy with UT-Battelle, LLC [DE-AC05-00OR22725]; Czech Research Plans [MSM-021620859, INGO-LA08015] FX This work was supported in part by the U.S. Department of Energy under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC and by Czech Research Plans MSM-021620859 and INGO-LA08015. NR 23 TC 3 Z9 3 U1 0 U2 0 PU KOREAN PHYSICAL SOC PI SEOUL PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA SN 0374-4884 J9 J KOREAN PHYS SOC JI J. Korean Phys. Soc. PD AUG 11 PY 2011 VL 59 IS 2 SI SI BP 2088 EP 2093 DI 10.3938/jkps.59.2088 PN 3 PG 6 WC Physics, Multidisciplinary SC Physics GA 809TX UT WOS:000294080700155 ER PT J AU Tornow, W Karwowski, HJ Kelley, JH Raut, R Rusev, G Stave, SC Tonchev, AP Deltuva, A Fonseca, AC Marcucci, LE Viviani, M Kievsky, A Golak, J Skibinski, R Witala, H Schiavilla, R AF Tornow, W. Karwowski, H. J. Kelley, J. H. Raut, R. Rusev, G. Stave, S. C. Tonchev, A. P. Deltuva, A. Fonseca, A. C. Marcucci, L. E. Viviani, M. Kievsky, A. Golak, J. Skibinski, R. Witala, H. Schiavilla, R. TI Two-body photodisintegration of He-3 between 7 and 16 MeV SO PHYSICS LETTERS B LA English DT Article DE Electromagnetic reaction; Giant dipole resonance of light nuclei; Two-body breakup cross section; Meson-exchange currents; Three-nucleon forces; Coulomb interaction ID RADIATIVE-CAPTURE; DEUTERONS; PROTONS; NUCLEI AB A comprehensive data set is reported for the two-body photodisintegration cross section of He-3 using mono-energetic photon beams at eleven energies between 7.0 and 16.0 MeV. A He-3 + Xe high-pressure gas scintillator served as target and detector. Although our data are in much better agreement with our state-of-the-art theoretical calculations than the majority of the previous data, these calculations underpredict the new data by about 10%. This disagreement suggests an incomplete understanding of the dynamics of the three-nucleon system and its response to electromagnetic probes. (C) 2011 Elsevier B.V. All rights reserved. C1 [Tornow, W.; Raut, R.; Rusev, G.; Stave, S. C.; Tonchev, A. P.] Duke Univ, Durham, NC 27708 USA. [Tornow, W.; Karwowski, H. J.; Kelley, J. H.; Raut, R.; Rusev, G.; Stave, S. C.; Tonchev, A. P.] Triangle Univ Nucl Lab, Durham, NC 27708 USA. [Karwowski, H. J.] Univ N Carolina, Chapel Hill, NC 27599 USA. [Kelley, J. H.] N Carolina State Univ, Raleigh, NC 27695 USA. [Deltuva, A.; Fonseca, A. C.] Univ Lisbon, Ctr Fis Nucl, P-1649003 Lisbon, Portugal. [Marcucci, L. E.] Univ Pisa, Dept Phys, I-56127 Pisa, Italy. [Marcucci, L. E.; Viviani, M.; Kievsky, A.] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy. [Golak, J.; Skibinski, R.; Witala, H.] Jagiellonian Univ, M Smoluchowski Inst Phys, PL-30059 Krakow, Poland. [Schiavilla, R.] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. [Schiavilla, R.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Tornow, W (reprint author), Duke Univ, Durham, NC 27708 USA. EM tornow@tunl.duke.edu RI Deltuva, Arnoldas/M-3749-2013; Sa Fonseca, Antonio Carlos/M-3434-2013 OI Deltuva, Arnoldas/0000-0002-0732-7749; Sa Fonseca, Antonio Carlos/0000-0002-5289-1162 FU United States Department of Energy, Office of Nuclear Physics [DE-FG02-97ER41033, DE-FG02-97ER41041, DE-FG02-97ER41042, DE-AC05-06OR23177] FX The authors acknowledge valuable contributions received from M.W. Ahmed, A.S. Crowell, J.H. Esterline, S.S. Henshaw, C.R. Howell, E. Kwan, J. Li, S. Mikhailov, C. Sun, G.J. Weisel, and Y.K. Wu. This work was partially supported by the United States Department of Energy, Office of Nuclear Physics under Grants No. DE-FG02-97ER41033, No. DE-FG02-97ER41041, No. DE-FG02-97ER41042, and No. DE-AC05-06OR23177. NR 25 TC 3 Z9 3 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 11 PY 2011 VL 702 IS 2-3 BP 121 EP 126 DI 10.1016/j.physletb.2011.06.080 PG 6 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 807US UT WOS:000293928600003 ER PT J AU Wang, X Riley, MA Simpson, J Paul, ES Ollier, J Janssens, RVF Ayangeakaa, AD Boston, HC Carpenter, MP Chiara, CJ Garg, U Hartley, DJ Judson, DS Kondev, FG Lauritsen, T Lumley, NM Matta, J Nolan, PJ Petri, M Revill, JP Riedinger, LL Rigby, SV Unsworth, C Zhu, S Ragnarsson, I AF Wang, X. Riley, M. A. Simpson, J. Paul, E. S. Ollier, J. Janssens, R. V. F. Ayangeakaa, A. D. Boston, H. C. Carpenter, M. P. Chiara, C. J. Garg, U. Hartley, D. J. Judson, D. S. Kondev, F. G. Lauritsen, T. Lumley, N. M. Matta, J. Nolan, P. J. Petri, M. Revill, J. P. Riedinger, L. L. Rigby, S. V. Unsworth, C. Zhu, S. Ragnarsson, I. TI Quadrupole moments of collective structures up to spin similar to 65(h)over-bar in Er-157 and Er-158: A challenge for understanding triaxiality in nuclei SO PHYSICS LETTERS B LA English DT Article DE Ultrahigh-spin collective structures; Transition quadrupole moments; Cranked Nilsson-Strutinsky calculations; Triaxial nuclear shape ID BACKGROUND SUBTRACTION; LIFETIME MEASUREMENTS; SUPERDEFORMED BANDS; COINCIDENCE DATA; CRANKING MODEL; TERMINATIONS; EXCITATIONS; DY-152 AB The transition quadrupole moments. Q(t), of four weakly populated collective bands up to spin similar to 65h in Er-157,Er-158 have been measured to be similar to II eb demonstrating that these sequences are associated with large deformations. However, the data are inconsistent with calculated values from cranked Nilsson-Strutinsky calculations that predict the lowest energy triaxial shape to be associated with rotation about the short principal axis. The data appear to favor either a stable triaxial shape rotating about the intermediate axis or, alternatively, a triaxial shape with larger deformation rotating about the short axis. These new results challenge the present understanding of triaxiality in nuclei. (C) 2011 Elsevier B.V. All rights reserved. C1 [Wang, X.; Riley, M. A.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA. [Simpson, J.; Ollier, J.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England. [Paul, E. S.; Boston, H. C.; Judson, D. S.; Nolan, P. J.; Revill, J. P.; Rigby, S. V.; Unsworth, C.] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England. [Janssens, R. V. F.; Carpenter, M. P.; Chiara, C. J.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Ayangeakaa, A. D.; Garg, U.; Matta, J.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Chiara, C. J.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA. [Hartley, D. J.] USN Acad, Dept Phys, Annapolis, MD 21402 USA. [Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA. [Lumley, N. M.] Univ Manchester, Schuster Lab, Manchester M13 9PL, Lancs, England. [Petri, M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Riedinger, L. L.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Ragnarsson, I.] Lund Univ, LTH, Div Math Phys, SE-22100 Lund, Sweden. RP Wang, X (reprint author), Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA. EM xwang3@nucmar.physics.fsu.edu RI Carpenter, Michael/E-4287-2015; Ayangeakaa, Akaa/F-3683-2015; Petri, Marina/H-4630-2016 OI Carpenter, Michael/0000-0002-3237-5734; Ayangeakaa, Akaa/0000-0003-1679-3175; Petri, Marina/0000-0002-3740-6106 FU U.S. National Science Foundation [PHY-0756474, PHY-0554762, PHY-0754674]; U.S. Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357, DE-FG02-94ER40834, DE-AC02-05CH11231, DE-FG02-96ER40983]; United Kingdom Science and Technology Facilities Council; Swedish Science Research Council; State of Florida FX The authors acknowledge Paul Morrall for preparing the targets, and the ATLAS operations staff for assistance. Discussions with S. Frauendorf and W. Nazarewicz are greatly appreciated. This work has been supported in part by the U.S. National Science Foundation under grants No. PHY-0756474 (FSU), PHY-0554762 (USNA), and PHY-0754674 (UND), the U.S. Department of Energy, Office of Nuclear Physics, under contracts No. DE-AC02-06CH11357 (ANL), DE-FG02-94ER40834 (UMD), DE-AC02-05CH11231 (LBL), and DE-FG02-96ER40983 (UTK), the United Kingdom Science and Technology Facilities Council, the Swedish Science Research Council, and by the State of Florida. NR 35 TC 23 Z9 23 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD AUG 11 PY 2011 VL 702 IS 2-3 BP 127 EP 130 DI 10.1016/j.physletb.2011.07.007 PG 4 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 807US UT WOS:000293928600004 ER PT J AU Soderlind, P Moore, KT Landa, A Sadigh, B Bradley, JA AF Soederlind, Per Moore, K. T. Landa, A. Sadigh, B. Bradley, J. A. TI Pressure-induced changes in the electronic structure of americium metal SO PHYSICAL REVIEW B LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; X-RAY-SCATTERING; CRYSTAL-STRUCTURES; PHASE-TRANSITIONS; 5F ELECTRONS; AM; PU; DELOCALIZATION; SPECTRA; SYSTEMS AB We have conducted electronic-structure calculations for Am metal under pressure to investigate the behavior of the 5 f-electron states. Density-functional theory (DFT) does not reproduce the experimental photoemission spectra for the ground-state phase where the 5 f electrons are localized, but the theory is expected to be correct when 5 f delocalization occurs under pressure. The DFT prediction is that peak structures of the 5 f valence band will merge closer to the Fermi level during compression indicating the presence of itinerant 5 f electrons. Existence of such 5 f bands is argued to be a prerequisite for the phase transitions, particularly to the primitive orthorhombic AmIV phase, but does not agree with modern dynamical-mean-field theory (DMFT) results. Our DFT model further suggests insignificant changes of the 5 f valence under pressure in agreement with recent resonant x-ray emission spectroscopy, but in contradiction to the DMFT predictions. The influence of pressure on the 5 f valency in the actinides is discussed and is shown to depend in a nontrivial fashion on 5 f-band position and occupation relative to the spd valence bands. C1 [Soederlind, Per; Moore, K. T.; Landa, A.; Sadigh, B.; Bradley, J. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Soderlind, P (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX M. F. Islam, J. G. Tobin, and R. G. Haire are acknowledged for helpful discussions. This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344. NR 51 TC 13 Z9 13 U1 1 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 11 PY 2011 VL 84 IS 7 AR 075138 DI 10.1103/PhysRevB.84.075138 PG 8 WC Physics, Condensed Matter SC Physics GA 806AX UT WOS:000293774400003 ER PT J AU Wang, KF Lei, HC Petrovic, C AF Wang, Kefeng Lei, Hechang Petrovic, C. TI Evolution of correlation strength in KxFe2-ySe2 superconductor doped with S SO PHYSICAL REVIEW B LA English DT Article ID IRON PNICTIDES AB We report the evolution of thermal transport properties of KxFe2-ySe2 with sulfur substitution at Se sites. Sulfur doping suppresses the superconducting T-c. The Seebeck coefficient of all crystals in the low-temperature range can be described very well by a diffusive thermoelectric response model. The zero-temperature extrapolated value of the Seebeck coefficient divided by temperature, S/T, gradually decreases from -0.48 mu V/K-2 to a very small value, similar to 0.03 mu V/K-2, where T-c is completely suppressed. The normal-state electron Sommerfeld term (gamma n) of specific heat also decreases with the increase in sulfur content. The decrease of S/T and gamma(n) reflects a suppression of the density of states at the Fermi energy, or a change in the Fermi surface that would induce the suppression of correlation strength. Our results imply little relevance of strong electron correlations to superconductivity. C1 [Wang, Kefeng; Lei, Hechang; Petrovic, C.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Wang, KF (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RI Wang, Kefeng/E-7683-2011; Petrovic, Cedomir/A-8789-2009; LEI, Hechang/H-3278-2016 OI Wang, Kefeng/0000-0002-8449-9720; Petrovic, Cedomir/0000-0001-6063-1881; FU US DOE [DE-AC02-98CH10886]; Center for Emergent Superconductivity; US DOE, Office for Basic Energy Science FX We thank John Warren for help with SEM measurements. Work at Brookhaven is supported by the US DOE under Contract No. DE-AC02-98CH10886 and in part by the Center for Emergent Superconductivity, and Energy Frontier Research Center funded by the US DOE, Office for Basic Energy Science. NR 47 TC 12 Z9 12 U1 3 U2 21 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 11 PY 2011 VL 84 IS 5 AR 054526 DI 10.1103/PhysRevB.84.054526 PG 5 WC Physics, Condensed Matter SC Physics GA 806AR UT WOS:000293773800012 ER PT J AU Xu, ZJ Wen, JS Xu, GY Chi, SX Ku, W Gu, GD Tranquada, JM AF Xu, Zhijun Wen, Jinsheng Xu, Guangyong Chi, Songxue Ku, Wei Gu, Genda Tranquada, J. M. TI Local-moment magnetism in superconducting FeTe0.35Se0.65 as seen via inelastic neutron scattering SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; SPIN DYNAMICS; EXCITATIONS; COEXISTENCE; ITINERANT; ELECTRONS; STATE; ORDER AB The nature of the magnetic correlations in Fe-based superconductors remains a matter of controversy. To address this issue, we use inelastic neutron scattering to characterize the strength and temperature dependence of low-energy spin fluctuations in FeTe0.35Se0.65 (T-c similar to 14 K). Integrating magnetic spectral weight for energies up to 12 meV, we find a substantial moment (< M-2 >(LE) similar to 0.07 mu(2)(B)/Fe) that shows little change with temperature, from below T-c to 300 K. Such behavior cannot be explained by the response of conduction electrons alone; states much farther from the Fermi energy must have an instantaneous local spin polarization. It raises interesting questions regarding the formation of the spin gap and resonance peak in the superconducting state. C1 [Xu, Zhijun; Wen, Jinsheng; Xu, Guangyong; Ku, Wei; Gu, Genda; Tranquada, J. M.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Xu, Zhijun] CUNY City Coll, Dept Phys, New York, NY 10033 USA. [Wen, Jinsheng] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. [Chi, Songxue] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA. RP Xu, ZJ (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RI Sanders, Susan/G-1957-2011; Xu, Guangyong/A-8707-2010; Wen, Jinsheng/F-4209-2010; Tranquada, John/A-9832-2009; xu, zhijun/A-3264-2013; Chi, Songxue/A-6713-2013 OI Xu, Guangyong/0000-0003-1441-8275; Wen, Jinsheng/0000-0001-5864-1466; Tranquada, John/0000-0003-4984-8857; xu, zhijun/0000-0001-7486-2015; Chi, Songxue/0000-0002-3851-9153 FU Office of Basic Energy Sciences, US Department of Energy [DE-AC02-98CH10886]; Center for Emergent Superconductivity, an Energy Frontier Research Center FX We thank Weiguo Yin and Igor Zaliznyak for useful discussions. This work is supported by the Office of Basic Energy Sciences, US Department of Energy under Contract No. DE-AC02-98CH10886. J.S.W. and Z.J.X. are supported by the same source through the Center for Emergent Superconductivity, an Energy Frontier Research Center. NR 45 TC 17 Z9 17 U1 1 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 11 PY 2011 VL 84 IS 5 AR 052506 DI 10.1103/PhysRevB.84.052506 PG 4 WC Physics, Condensed Matter SC Physics GA 806AR UT WOS:000293773800001 ER PT J AU Chang, CH AF Chang, Christopher H. TI Computational Chemical Analysis of [FeFe] Hydrogenase H-Cluster Analogues To Discern Catalytically Relevant Features of the Natural Diatomic Ligand Configuration SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID GENERALIZED-GRADIENT APPROXIMATION; GAUSSIAN-BASIS SETS; CORRELATED MOLECULAR CALCULATIONS; DENSITY-FUNCTIONAL CALCULATIONS; TRANSITION-METAL-COMPLEXES; EFFECTIVE CORE POTENTIALS; ACTIVE-SITE; ONLY HYDROGENASE; DESULFOVIBRIO-DESULFURICANS; IRON HYDROGENASE AB Density functional theoretical models of the electronic structure of several configurational isomers and analogues of the [2Fe](H) H-cluster in [FeFe] hydrogenase were analyzed to identify distinguishing features of the canonical cofactor structure potentially relevant to catalysis. Collective analysis of geometric changes over models of oxidized and reduced [2Fe] clusters highlighted movement of the bridging carbonyl and anticorrelation of the proximal and distal Fe-C-terminal,, bonds as key explanatory factors for variance over the considered models. Charge and bond order analysis suggest that as the bridging carbonyl favors the distal iron upon reduction, bonding simultaneously becomes more ionic in nature, raising the possibility of simple electrostatic stabilization as a factor in charge accumulation prior to ultimate H-2 creation and release. Frontier orbital energies show cis and trans arrangements of cyanide on the Fe Fe core to have distinctive energies from the other models, which may be important for redox poise. Altogether, few factors qualitatively distinguish the cis- from the trans-cyano configurations, which may in fact enhance catalytic robustness under conditions leading to exchange of the bridging and terminal carbonyl ligands. However, the naturally occurring trans configuration possesses two distinct donor-metal-acceptor S-Fe-C(O) interactions, which might play a role in enforcing a low-spin ground state for the hydridic mechanism of H-2 production. C1 Natl Renewable Energy Lab, Computat Sci Ctr, Golden, CO 80401 USA. RP Chang, CH (reprint author), Natl Renewable Energy Lab, Computat Sci Ctr, 1617 Cole Blvd,MS 1608, Golden, CO 80401 USA. RI Chang, Christopher/A-1404-2012 OI Chang, Christopher/0000-0003-3800-6021 FU Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy [DE-AC36-08GO28308]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy under Contract No. DE-AC36-08GO28308. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 78 TC 3 Z9 3 U1 0 U2 7 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD AUG 11 PY 2011 VL 115 IS 31 BP 8691 EP 8704 DI 10.1021/jp112296d PG 14 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 801EN UT WOS:000293419900014 PM 21682274 ER PT J AU Yuan, XX Liu, LX Wang, X Yang, ML Jackson, KA Jellinek, J AF Yuan, Xiuxiang Liu, Liuxia Wang, Xin Yang, Mingli Jackson, Koblar Alan Jellinek, Julius TI Theoretical Investigation of Adsorption of Molecular Oxygen on Small Copper Clusters SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID COLLISION-INDUCED DISSOCIATION; DENSITY-FUNCTIONAL THEORY; CATALYTIC CO OXIDATION; COINAGE METAL-CLUSTERS; PHOTOELECTRON-SPECTRA; ELECTRONIC-PROPERTIES; CARBON-MONOXIDE; GOLD CLUSTERS; FRAGMENTATION PATHWAYS; CU-N(-) CLUSTERS AB Adsorption of molecular oxygen on Cu(N) (N = 2-10) clusters is investigated using density functional theory under the generalized gradient approximation of Perdew-Burke-Emzerhof An extensive structure search is performed to identify low-energy conformations of Cu(N)O(2) complexes. Optimal adsorption sites are assigned for low energy isomers of the clusters. Among these are some new arrangements unidentified heretofore. Distinct size dependences are noted for the ground state CuNO(2) complexes in stability, adsorption energy, Cu-O(2) bond strength, and other characteristic quantities. CuNO(2) with odd-N tend to have larger adsorption energies than their even-N neighbors, with the exception of Cu(6)O(2), which has a relatively large adsorption energy resulting from the adsorption-induced 2D-to-3D structural transition in Cu(6). The energetically preferred spin-multiplicity of all the odd-N CuNO(2) complexes is doublet; it is triplet for N = 2 and 4 and singlet for N = 6, 8, and 10. C1 [Yuan, Xiuxiang; Liu, Liuxia; Wang, Xin; Yang, Mingli] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China. [Jackson, Koblar Alan] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA. [Jellinek, Julius] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Yang, ML (reprint author), Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China. EM myang@scu.edu.cn; jackslka@cmich.edu; jellinek@anl.gov RI Yang, Mingli/E-9983-2012; OI Yang, Mingli/0000-0001-8590-8840; Jackson, Koblar/0000-0002-5342-7978 FU NSFC [20873088]; SRF [20091341-11-10]; Major State Basic Research Development Program of China [2011CB606200]; Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, U.S. Department of Energy [DE-AC02-06CH11357]; Institute for Atom-efficient Chemical Transformations (IACT); U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; U.S. Department of Energy [DE-SC0001330] FX M.Y. was supported by NSFC (Grant No. 20873088), Project sponsored by SRF for ROCS (Grant No 20091341-11-10), and the Major State Basic Research Development Program of China (Grant No. 2011CB606200). A part of the computational work was carried out on the High-Performance Computers of Physics at Sichuan University. J.J. was supported by the Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, U.S. Department of Energy, under Contract No. DE-AC02-06CH11357, and by the Institute for Atom-efficient Chemical Transformations (IACT), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. K.A.J. was supported by the U.S. Department of Energy under Award Number: DE-SC0001330. NR 93 TC 24 Z9 24 U1 6 U2 34 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD AUG 11 PY 2011 VL 115 IS 31 BP 8705 EP 8712 DI 10.1021/jp200125t PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 801EN UT WOS:000293419900015 PM 21732667 ER PT J AU Ginovska-Pangovska, B Camaioni, DM Dupuis, M AF Ginovska-Pangovska, Bojana Camaioni, Donald M. Dupuis, Michel TI About the Barriers to Reaction of CCl4 with HFeOH and FeCl2 SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID MOLECULAR-ORBITAL METHODS; ELECTRON-TRANSFER REACTIONS; GAUSSIAN-BASIS SETS; COUPLED-CLUSTER; ATOM-TRANSFER; FE-0 ATOMS; CARBON-TETRACHLORIDE; HYDROGEN-ATOM; EXCHANGE; CHEMISTRY AB The reactions of zerovalent iron with water and carbon tetrachloride are of interest for environmental remediation of contaminated water and soil. Atom-dropping experiments have shown that the reactions of iron atoms with water and CCl4 may produce HFeOH and FeCl2, respectively, but these compounds are themselves unreactive toward CCl4 at the low temperatures under which the atom-dropping experiments were performed. We report a modeling study of these reactions using density functional theory, ab initio Hartree-Fock and couple-cluster theory, and principles of Marcus Hush theory to characterize the underlying intrinsic barriers and rationalize the experimental results. Electron-correlated CCSD(T) calculations (at B3LYP/TZVP optimized structures) show that the transition state for Cl atom transfer from CCl4 to HFeOH arises from crossing of electronic states in which the configuration of Fe changes from a quintet high spin state in the Fe-II reactant to a sextet high spin state in the Fe-III products. The crossing point is 23.8 kcal/mol above a long-range precursor complex that is 2.1 kcal/mol more stable than the separated reactants. The electronic structure changes in these Cl atom transfer reactions involve unpairing of d electrons in Fe-II and their recoupling with Cl-C sigma bond electrons. These processes can be conveniently described by invoking the self-exchange reactions HFeOH/HFeClOH, FeCl2/FeCl3, and CCl4/(CCl3)-C-center dot for which we determined the energy barriers to be 15.5, 13.1, 18.6 kcal/mol., respectively. For the cross reaction FeCl2/CCl4, we estimated a barrier of 16.6 kcal/mol relative to the separated reactants and 21.1 kcal/mol from the precursor complex. The magnitudes of the reaction barriers are consistent with reports of the absence of products in the atom-dropping experiments. C1 [Ginovska-Pangovska, Bojana; Camaioni, Donald M.; Dupuis, Michel] Pacific NW Natl Lab, Chem & Mat Sci Div, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. RP Camaioni, DM (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, Fundamental & Computat Sci Directorate, POB 999, Richland, WA 99352 USA. EM donald.camaioni@pnl.gov FU U.S. Department of Energy Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences; U.S. Department of Energy [DE-AC06-76RLO 1830]; Office of Science of the U.S. Department of Energy [DE-AC02-0SCH11231] FX The authors acknowledge valuable discussions with our collaborators, Drs. Gareth S. Parkinson, Zdenek Dohnalek, R. Scott Smith, Bruce D. Kay, and Don Baer. This work was supported by the U.S. Department of Energy Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences. Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle under Contract No. DE-AC06-76RLO 1830. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-0SCH11231. NR 55 TC 3 Z9 3 U1 0 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD AUG 11 PY 2011 VL 115 IS 31 BP 8713 EP 8720 DI 10.1021/jp2019928 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 801EN UT WOS:000293419900016 PM 21707066 ER PT J AU Assary, RS Curtiss, LA AF Assary, Rajeev S. Curtiss, Larry A. TI Theoretical Study of 1,2-Hydride Shift Associated with the Isomerization of Glyceraldehyde to Dihydroxy Acetone by Lewis Acid Active Site Models SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID EFFECTIVE CORE POTENTIALS; MEERWEIN-PONNDORF-VERLEY; BETA-ZEOLITE; BASIS-SETS; SN-BETA; WATER-RESISTANT; CATALYSTS; GLUCOSE; BIOMASS; SUGARS AB The isomerization of glyceraldehyde to dihydroxy acetone catalyzed by the active site of Sn-beta zeolite is investigated using the B3LYP density functional and MP2 levels of theory. Structural studies were aimed to understanding the binding modes of glyceraldehyde with the active site, and the detailed free energy landscape was computed for the isomerization process. The rate-limiting step for the isomerization is the 1,2-hydride shift, which is enhanced by the active participation of the hydroxyl group in the hydrolyzed Sn-beta active site analogues to the one seen in the xylose isomerase. On the basis of the assessment of the activation barriers for isomerization by the Sn, Zr, Ti, and Si zeolite models, the activity of the catalysts are in the order of Sn > Zr > Ti > Si in aqueous dielectric media. C1 [Assary, Rajeev S.; Curtiss, Larry A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Assary, Rajeev S.] Northwestern Univ, Evanston, IL 60208 USA. [Curtiss, Larry A.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Assary, RS (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM assary@anl.gov; curtiss@anl.gov RI Surendran Assary, Rajeev/E-6833-2012 OI Surendran Assary, Rajeev/0000-0002-9571-3307 FU U.S. Department of Energy [DE-AC0206CH11357]; Institute for Atom-efficient Chemical Transformations (TACT); U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences FX This work was supported by the U.S. Department of Energy under Contract DE-AC0206CH11357. This material is based upon work supported as part of the Institute for Atom-efficient Chemical Transformations (TACT), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences. We gratefully acknowledge grants of computer time from EMSL, a national scientific user facility located at Pacific Northwest National Laboratory, the ANL Laboratory Computing Resource Center (LCRC), and the ANL Center for Nanoscale Materials. NR 36 TC 50 Z9 50 U1 5 U2 46 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD AUG 11 PY 2011 VL 115 IS 31 BP 8754 EP 8760 DI 10.1021/jp204371g PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 801EN UT WOS:000293419900020 PM 21707087 ER PT J AU Duque, JG Gupta, G Cognet, L Lounis, B Doorn, SK Dattelbaum, AM AF Duque, Juan G. Gupta, Gautam Cognet, Laurent Lounis, Brahim Doorn, Stephen K. Dattelbaum, Andrew M. TI New Route to Fluorescent Single-Walled Carbon Nanotube/Silica Nanocomposites: Balancing Fluorescence Intensity and Environmental Sensitivity SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID RAMAN-SPECTROSCOPY; OPTICAL SENSORS; LUMINESCENCE AB We investigate the relationship between photoluminescence (PL) intensity and environmental sensitivity of surfactant-wrapped single-walled carbon nanotubes (SWNTs). SWNTs were studied under a variety of conditions in suspension as well as encapsulated in silica nanocomposites, which were prepared by an efficient chemical vapor into liquids (CViL) sol-gel process. The dramatically improved silica encapsulation process described here has several advantages, including fast preparation and high SWNT loading concentration, over other encapsulation methods used to prepare fluorescent SWNT/silica nanocomposites. Further, addition of glycerol to SWNT suspensions prior to performing the CViL sol-gel process allows for the preparation of freestanding fluorescent silica xerogels, which to the best of our knowledge is the first report of such nanocomposites. Our spectroscopic data on SWNTs suspended in aqueous surfactants or encapsulated in silica show that achieving maximum PL intensity results in decreased sensitivity of SWNT emission response to changes imparted by the local environment. In addition, silica encapsulation can be used to "lock-in" a surfactant micelle structure surrounding SWNTs to minimize interactions between SWNTs and ions/small molecules. Ultimately, our work demonstrates that one should consider a balance between maximum PL intensity and the ability to sense environmental changes when designing new SWNT systems for future sensing applications. C1 [Gupta, Gautam; Doorn, Stephen K.; Dattelbaum, Andrew M.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Duque, Juan G.] Los Alamos Natl Lab, Div Chem, Phys Chem & Appl Spect Grp, Los Alamos, NM 87545 USA. [Cognet, Laurent; Lounis, Brahim] Univ Bordeaux, Lab Photon Numer & Nanosci, Inst Opt Grad Sch, F-33405 Talence, France. [Cognet, Laurent; Lounis, Brahim] Univ Bordeaux, CNRS, F-33405 Talence, France. RP Dattelbaum, AM (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, MS K771, Los Alamos, NM 87545 USA. EM amdattel@lanl.gov RI Cognet, Laurent/F-4163-2011; Lounis, Brahim/I-7862-2016 OI Cognet, Laurent/0000-0002-3573-5387; FU Department of Energy, Office of Science, Basic Energy Sciences; Los Alamos National Laboratory LDRD FX The authors would like to thank the Department of Energy, Office of Science, Basic Energy Sciences, for providing funding for this work. J.G.D. would also like to thank the Los Alamos National Laboratory LDRD Director's Postdoc program for funding his work. NR 31 TC 11 Z9 11 U1 1 U2 26 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 11 PY 2011 VL 115 IS 31 BP 15147 EP 15153 DI 10.1021/jp2012107 PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 801EM UT WOS:000293419700005 ER PT J AU Mangham, AN Govind, N Bowden, ME Shutthanandan, V Joly, AG Henderson, MA Chambers, SA AF Mangham, Andrew N. Govind, Niranjan Bowden, Mark E. Shutthanandan, V. Joly, Alan G. Henderson, Michael A. Chambers, Scott A. TI Photochemical Properties, Composition, and Structure in Molecular Beam Epitaxy Grown Fe "Doped" and (Fe,N) Codoped Rutile TiO2(110) SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID PHOTOINDUCED REDOX REACTION; QUANTUM-SIZED TIO2; METAL-ION DOPANTS; ELECTRONIC-STRUCTURE; TITANIUM-DIOXIDE; ULTRASOFT PSEUDOPOTENTIALS; PHOTOCATALYTIC ACTIVITY; TRIMETHYL ACETATE; N INCORPORATION; SURFACE AB We have investigated the surface photochemical properties of Fe "doped" and (Fe,N) codoped homoepitaxial rutile TiO2(110) films grown by plasma-assisted molecular beam epitaxy. Fe does not incorporate as an electronic dopant in the rutile lattice but rather segregates to the film surface. However, codeposition of Fe with N enhances the solubility of Fe, and DFT calculations suggest that codopant complex formation is the driving force behind the enhanced solubility. The codoped films, in which a few atomic percent of Ti (O) are replaced with Fe (N), exhibit significant disorder compared to undoped films grown under the same conditions, presumably due to dopant-induced strain. Codoping redshifts the rutile bandgap into the visible. However, the film surfaces are photochemically inert with respect to hole-mediated decomposition of adsorbed trimethyl acetate. The absence of photochemical activity may result from dopant-induced trap and/or recombination sites within the film. This study indicates that enhanced visible light absorptivity in TiO2 does not necessarily result in visible light initiated surface photochemistry. C1 [Mangham, Andrew N.; Govind, Niranjan; Bowden, Mark E.; Shutthanandan, V.; Joly, Alan G.; Henderson, Michael A.; Chambers, Scott A.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. RP Chambers, SA (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. EM sa.chambers@pnnl.gov FU US Department of Energy, Office of Science, Division of Chemical Sciences; EMSL FX This work was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. All calculations reported were performed on the Chinook supercomputer at EMSL. This work was supported by the US Department of Energy, Office of Science, Division of Chemical Sciences. N.G. also acknowledges support from the EMSL Intramural Program and thanks Dr. Amity Andersen for many useful discussions. NR 65 TC 18 Z9 18 U1 2 U2 40 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 11 PY 2011 VL 115 IS 31 BP 15416 EP 15424 DI 10.1021/jp203061n PG 9 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 801EM UT WOS:000293419700039 ER PT J AU Peteanu, LA Sherwood, GA Werner, JH Shreve, AP Smith, TM AF Peteanu, Linda A. Sherwood, Gizelle A. Werner, James H. Shreve, Andrew P. Smith, Timothy M. TI Visualizing Core-Shell Structure in Substituted PPV Oligomer Aggregates Using Fluorescence Lifetime Imaging Microscopy (FLIM) SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID POLYMER MEH-PPV; DEPENDENT SPECTROSCOPIC PROPERTIES; PHENYLENE VINYLENE OLIGOMERS; SINGLE-MOLECULE SPECTROSCOPY; QUANTUM-CHEMICAL APPROACH; PI-CONJUGATED OLIGOMERS; INTERCHAIN INTERACTIONS; ENERGY-TRANSFER; SUPRAMOLECULAR ASSEMBLIES; SEMICONDUCTING POLYMERS AB The use of fluorescence lifetime imaging microscopy (FLIM) is introduced as a means of directly imaging core shell structured organic aggregates through the gradient observed in their emission wavelength and lifetime as a function of distance from their center to their exterior. The aggregates studied consist of alkoxy-substituted oligomeric PPVs (OPPVs) 7 and 13 rings in length that are formed via reprecipitation in a mixture of methyl tetrahydrofuran (MeTHF) and methanol (MeOH). Prior bulk fluorescence spectroscopy and wavelength-dependent lifetime measurements on these aggregates (J. Phys. Chem. C 2009, 113, 18851-18862) showed that their properties are consistent with the presence of two types of emitters, one that behaves, identically to the monomer with the other having the longer emission wavelengths and shorter lifetimes characteristic of aggregated chains. These two emitters were postulated to be the components of "core-shell"-like structures in which the core consists of aggregated chains and the shell consists of monomer-like chains that are in direct contact with the surrounding solvent. The FLIM images of individual aggregates presented here are consistent with this model which had been developed on the basis of measurements on bulk samples. The uniformity of the emission spectra of these aggregates is also demonstrated using single-aggregate dispersed emission spectroscopy. C1 [Peteanu, Linda A.; Sherwood, Gizelle A.; Smith, Timothy M.] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA. [Werner, James H.; Shreve, Andrew P.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Peteanu, LA (reprint author), Carnegie Mellon Univ, Dept Chem, 4400 5th Ave, Pittsburgh, PA 15213 USA. EM peteanu@andrew.cmu.edu OI Werner, James/0000-0002-7616-8913 FU NSF [CHE-079112, CHE-1012529]; Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC52-06NA25396]; Sandia National Laboratories [DE-AC04-94AL85000] FX L.A.P. acknowledges NSF CHE-079112 and CHE-1012529 for financial support and thanks Joseph Suhan (CMU) and Kevin Baldwin (CINT) for help in preparing the gold-coated substrates. This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility at Los Alamos National Laboratory (Contract DE-AC52-06NA25396) and Sandia National Laboratories (Contract DE-AC04-94AL85000). NR 59 TC 15 Z9 15 U1 3 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 11 PY 2011 VL 115 IS 31 BP 15607 EP 15616 DI 10.1021/jp201836j PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 801EM UT WOS:000293419700062 ER PT J AU Yildirim, H Greeley, J Sankaranarayanan, SKRS AF Yildirim, Handan Greeley, Jeffrey Sankaranarayanan, Subramanian K. R. S. TI Effect of Concentration on the Energetics and Dynamics of Li Ion Transport in Anatase and Amorphous TiO2 SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TOTAL-ENERGY CALCULATIONS; X-RAY-DIFFRACTION; WAVE BASIS-SET; LITHIUM INTERCALATION; TITANIUM-DIOXIDE; SHELL-MODEL; ELECTROCHEMICAL PROPERTIES; NANOPOROUS FILMS; INSERTION; DIFFUSION AB We report on the energetics and dynamics of Li diffusion in bulk anatase and amorphous TiO2 using molecular dynamics (MD) simulations and density functional theory (DFT) calculations. Using MD simulations, for both anatase and amorphous TiO2, diffusion characteristics are first studied for an isolated Li ion, followed by simulations of Li concentrations ranging from 10% to 100% in order to explore the concentration effect on the diffusivity. The isolated Li diffusion mechanism, revealed from the MD simulations, occurs via zigzag hops between the octahedral sites in anatase. The corresponding barrier for this process obtained from DFT-NEB calculations is 480 meV. MD simulations also show that isolated Li ion diffusivity is much slower in the amorphous TiO2 than in anatase TiO2. DFT-NEB results for the diffusion in amorphous titania indicate that Li encounters deep energy wells within the amorphous network that are in the electronvolt range, confirming our MD observation of low Li diffusivity. A monotonic decrease in diffusion barriers with increasing Li concentration is observed in the case of amorphous titania whereas a non-monotonic variation is seen in anatase, with the lowest barrier observed at 50% Li concentration. At low Li concentrations (<50%), we find that the barriers in anatase are lower than in amorphous titania. However, at the maximum Li intercalation ratios, which are experimentally known to be 50% for anatase and >75% for amorphous titania, the Li diffusivity in amorphous is found to be much higher than in anatase. Our MD simulations suggest that the underlying reason for these differences is related to changes in diffusion mechanism. Our simulations therefore indicate a strong correlation between Li ion concentration and the observed transport characteristics, offering new insights into ion conduction mechanisms that are of importance to solid-state devices used for energy storage applications. C1 [Yildirim, Handan; Greeley, Jeffrey; Sankaranarayanan, Subramanian K. R. S.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Greeley, J (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM jgreeley@anl.gov; skrssank@anl.gov FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors also acknowledge computer time at the Laboratory Computing Resource Center (LCRC) at Argonne National Laboratory, and the EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research located at Pacific Northwest National Laboratory. The authors acknowledge the discussions with the individuals at the Nano-Bio Interfaces Group led by T. Rajh at CNM and C. Johnson. NR 75 TC 22 Z9 22 U1 4 U2 51 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD AUG 11 PY 2011 VL 115 IS 31 BP 15661 EP 15673 DI 10.1021/jp202514j PG 13 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 801EM UT WOS:000293419700068 ER PT J AU Rehm, KE Greene, JP Harss, B Henderson, D Jiang, CL Pardo, RC Zabransky, B Paul, M AF Rehm, K. E. Greene, J. P. Harss, B. Henderson, D. Jiang, C. L. Pardo, R. C. Zabransky, B. Paul, M. TI Gas cell targets for experiments with radioactive beams SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Gas targets; Radioactive beams ID ION-BEAMS AB In this paper we discuss the properties of gas cell targets used for the production of radioactive beams via the in-flight technique as well as gas cell targets used for studies of nuclear reactions in inverse kinematics at the ATLAS heavy ion accelerator. (C) 2011 Published by Elsevier B.V. C1 [Rehm, K. E.; Greene, J. P.; Harss, B.; Henderson, D.; Jiang, C. L.; Pardo, R. C.; Zabransky, B.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Paul, M.] Hebrew Univ Jerusalem, Racah Inst, Jerusalem, Israel. RP Rehm, KE (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. EM rehm@anl.gov FU US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357] FX This work was supported by the US Department of Energy, Office of Nuclear Physics, under Contract no. DE-AC02-06CH11357. NR 39 TC 10 Z9 10 U1 1 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 EI 1872-9576 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 11 PY 2011 VL 647 IS 1 BP 3 EP 9 DI 10.1016/j.nima.2011.04.011 PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 791OI UT WOS:000292674100002 ER PT J AU Becvar, F Koehler, PE Krticka, M Mitchell, GE Ullmann, JL AF Becvar, F. Koehler, P. E. Krticka, M. Mitchell, G. E. Ullmann, J. L. TI Optimized gamma-multiplicity-based spin assignments of s-wave neutron resonances SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Neutron resonances; Spin assignment; gamma-multiplicity; Neutron time-of-flight method; 4 pi BaF(2) gamma-detectors ID DANCE ARRAY; DETECTOR; WIDTHS AB The multiplicity of gamma-ray emission following neutron capture at isolated resonances carries valuable information on the resonance spin. Several methods utilizing this information have been developed. The latest method was recently introduced for analyzing the data from time-of-flight measurements with 4 pi gamma-calorimetric detection systems. The present paper describes a generalization of this method. The goal is the separation of the gamma-emission yields belonging to the two neutron capturing state spins of isolated (or even unresolved) s-wave neutron resonances on targets with non-zero spin. The formalism for performing this separation is described and then tested on artificially generated data. This new method was applied to the gamma-multiplicity data obtained for the (147)Sm(n,gamma)(148)Sm reaction using the DANCE detector system at the LANSCE facility at Los Alamos National Laboratory. The analyzing power of the upgraded method is supported by combined DICEBOX and GEANT4 simulations of the fluctuation properties of the gamma-multiplicity distributions. (C) 2011 Elsevier B.V. All rights reserved. C1 [Becvar, F.; Krticka, M.] Charles Univ Prague, Fac Math & Phys, CR-18000 Prague 8, Czech Republic. [Koehler, P. E.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Mitchell, G. E.] Triangle Univ Nucl Lab, Durham, NC 27708 USA. [Mitchell, G. E.] N Carolina State Univ, Raleigh, NC 27695 USA. [Ullmann, J. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Becvar, F (reprint author), Charles Univ Prague, Fac Math & Phys, CR-18000 Prague 8, Czech Republic. EM becvar@mbox.troja.mff.cuni.cz RI Becvar, Frantisek/D-3824-2012 FU Ministry of Education of the Czech Republic [MSM0021620859, INGO LA08015]; U.S. Department of Energy [DE-FG52-09-NA29460, DE-FG02-97-ER41042, DE-AC05-00OR22725]; UT-Battelle, LLC.; U.S. Department of Energy by the University of California; Los Alamos National Laboratory [W-7405-ENG-48, W-7405-ENG-36] FX This work was in part supported by the Research Plans MSM0021620859 and INGO LA08015 of the Ministry of Education of the Czech Republic, by the U.S. Department of Energy Grants No. DE-FG52-09-NA29460 and DE-FG02-97-ER41042, and by the U.S. Department of Energy under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. The research was performed under the auspices of the U.S. Department of Energy by the University of California and Los Alamos National Laboratory under contracts Nos. W-7405-ENG-48 and W-7405-ENG-36, respectively. NR 19 TC 7 Z9 7 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 11 PY 2011 VL 647 IS 1 BP 73 EP 85 DI 10.1016/j.nima.2011.04.026 PG 13 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 791OI UT WOS:000292674100012 ER PT J AU Zhao, JK AF Zhao, Jinkui TI Data processing for the SNS EQ-SANS diffractometer SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE TOF-SANS; Data processing; Time-dependent studies ID ANGLE NEUTRON-SCATTERING; CALIBRATION AB The scattering data on the Extended Q-range Small Angle Scattering Diffractometer at the spallation neutron source are stored as neutron events. Each event has two parts: the time of fight of the detected neutron, and an identifier for the neutron's location on the detector. In addition, each event is associated with the source pulse from which the neutron is originated. Due to Spallation Neutron Source's (SNS) high neutron flux, the size of the stored data files can easily exceed several Gigabytes. Processing and reducing these data can be very time consuming. In the present work, we implement a data processing scheme for the EQ-SANS diffractometer that is fast, versatile, and highly automated. The data are processed directly from the event files into neutron scattering intensity versus momentum transfer data sets, or other desired formats. Speed gains are obtained by the implementation of parallel computing under the Message Passing Interface framework. In addition, the implementation allows for time-slicing of the scattering data, which will enable fast time-dependency studies on the EQ-SANS instrument, such as temperature jump and fast shears. Finally, our work implements the handling of scattering data from the innovative frame-skipping operation of the EQ-SANS instrument. (C) 2011 Elsevier B.V. All rights reserved. C1 Oak Ridge Natl Lab, Spoliat Neutron Source, Oak Ridge, TN 37831 USA. RP Zhao, JK (reprint author), Oak Ridge Natl Lab, Spoliat Neutron Source, Oak Ridge, TN 37831 USA. EM zhaoj@ornl.gov RI Zhao, Jinkui/B-7872-2013 OI Zhao, Jinkui/0000-0002-7756-1952 FU UT-Battelle, LLC [DE-AC05-00OR22725]; U.S. Department of Energy FX This manuscript has been authored by UT-Battelle, LLC, under Contract no. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 14 TC 4 Z9 4 U1 1 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 11 PY 2011 VL 647 IS 1 BP 107 EP 111 DI 10.1016/j.nima.2011.05.048 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 791OI UT WOS:000292674100016 ER PT J AU Jung, H Lee, KS Jeong, DE Choi, YS Yu, YS Han, DS Vogel, A Bocklage, L Meier, G Im, MY Fischer, P Kim, SK AF Jung, Hyunsung Lee, Ki-Suk Jeong, Dae-Eun Choi, Youn-Seok Yu, Young-Sang Han, Dong-Soo Vogel, Andreas Bocklage, Lars Meier, Guido Im, Mi-Young Fischer, Peter Kim, Sang-Koog TI Tunable negligible-loss energy transfer between dipolar-coupled magnetic disks by stimulated vortex gyration SO SCIENTIFIC REPORTS LA English DT Article ID CORE; PERMALLOY; DYNAMICS; DRIVEN; FILMS AB A wide variety of coupled harmonic oscillators exist in nature. Coupling between different oscillators allows for the possibility of mutual energy transfer between them and the information-signal propagation. Low-energy input signals and their transport with negligible energy loss are the key technological factors in the design of information-signal processing devices. Here, utilizing the concept of coupled oscillators, we experimentally demonstrated a robust new mechanism for energy transfer between spatially separated dipolar-coupled magnetic disks - stimulated vortex gyration. Direct experimental evidence was obtained by a state-of-the-art experimental time-resolved soft X-ray microscopy probe. The rate of energy transfer from one disk to the other was deduced from the two normal modes' frequency splitting caused by dipolar interaction. This mechanism provides the advantages of tunable energy transfer rates, low-power input signals and negligible energy loss in the case of negligible intrinsic damping. Coupled vortex-state disks might be implemented in applications for information-signal processing. C1 [Jung, Hyunsung; Lee, Ki-Suk; Jeong, Dae-Eun; Choi, Youn-Seok; Yu, Young-Sang; Han, Dong-Soo; Kim, Sang-Koog] Seoul Natl Univ, Natl Creat Res Ctr Spin Dynam & Spin Wave Devices, Seoul 151744, South Korea. [Jung, Hyunsung; Lee, Ki-Suk; Jeong, Dae-Eun; Choi, Youn-Seok; Yu, Young-Sang; Han, Dong-Soo] Seoul Natl Univ, Dept Mat Sci & Engn, Nanospin Lab, Seoul 151744, South Korea. [Vogel, Andreas; Bocklage, Lars; Meier, Guido] Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany. [Vogel, Andreas; Bocklage, Lars; Meier, Guido] Univ Hamburg, Zentrum Mikrostrukturforsch, D-20355 Hamburg, Germany. [Im, Mi-Young; Fischer, Peter] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Kim, SK (reprint author), Seoul Natl Univ, Natl Creat Res Ctr Spin Dynam & Spin Wave Devices, Seoul 151744, South Korea. EM sangkoog@snu.ac.kr RI MSD, Nanomag/F-6438-2012; Fischer, Peter/A-3020-2010; Kim, Sang-Koog/J-4638-2014; OI Fischer, Peter/0000-0002-9824-9343; Bocklage, Lars/0000-0001-9769-4173 FU National Research Foundation of Korea (NRF); Ministry of Education, Science, and Technology [20110000441]; Deutsche Forschungsgemeinschaft [SFB 668, Graduiertenkolleg 1286]; City of Hamburg via Cluster of Excellence "Nano-Spintronics" FX This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education, Science, and Technology (Grant No. 20110000441). The operation of the microscope was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy. Financial support of the Deutsche Forschungsgemeinschaft via the SFB 668 "Magnetismus vom Einzelatom zur Nanostruktur" and via the Graduiertenkolleg 1286 "Functional Metal-Semiconductor Hybrid Systems" is gratefully acknowledged, as is that of the City of Hamburg via Cluster of Excellence "Nano-Spintronics." NR 32 TC 52 Z9 53 U1 2 U2 25 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2045-2322 J9 SCI REP-UK JI Sci Rep PD AUG 10 PY 2011 VL 1 AR 59 DI 10.1038/srep00059 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 835QM UT WOS:000296050900001 PM 22355578 ER PT J AU Erlandsson, L Rosenstierne, MW McLoughlin, K Jaing, C Fomsgaard, A AF Erlandsson, Lena Rosenstierne, Maiken W. McLoughlin, Kevin Jaing, Crystal Fomsgaard, Anders TI The Microbial Detection Array Combined with Random Phi29-Amplification Used as a Diagnostic Tool for Virus Detection in Clinical Samples SO PLOS ONE LA English DT Article ID WHOLE-GENOME AMPLIFICATION; MULTIPLE DISPLACEMENT AMPLIFICATION; ROLLING-CIRCLE AMPLIFICATION; POLYMERASE CHAIN-REACTION; PHI-29 DNA-POLYMERASE; REAL-TIME PCR; HUMAN CORONAVIRUS; MICROARRAY; IDENTIFICATION; HYBRIDIZATION AB A common technique used for sensitive and specific diagnostic virus detection in clinical samples is PCR that can identify one or several viruses in one assay. However, a diagnostic microarray containing probes for all human pathogens could replace hundreds of individual PCR-reactions and remove the need for a clear clinical hypothesis regarding a suspected pathogen. We have established such a diagnostic platform for random amplification and subsequent microarray identification of viral pathogens in clinical samples. We show that Phi29 polymerase-amplification of a diverse set of clinical samples generates enough viral material for successful identification by the Microbial Detection Array, demonstrating the potential of the microarray technique for broad-spectrum pathogen detection. We conclude that this method detects both DNA and RNA virus, present in the same sample, as well as differentiates between different virus subtypes. We propose this assay for diagnostic analysis of viruses in clinical samples. C1 [Erlandsson, Lena; Rosenstierne, Maiken W.; Fomsgaard, Anders] Statens Serum Inst, Dept Virol, Virus Res & Dev, DK-2300 Copenhagen, Denmark. [McLoughlin, Kevin; Jaing, Crystal] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Erlandsson, L (reprint author), Statens Serum Inst, Dept Virol, Virus Res & Dev, DK-2300 Copenhagen, Denmark. EM lao@ssi.dk OI McLoughlin, Kevin/0000-0001-9651-4951; Tripp, Ralph/0000-0002-2924-9956 FU Lawrence Livermore National Laboratory under the U.S. Department of Energy [LLNL02-SI-008, DE-AC52-07NA27344] FX The project was supported by the Laboratory Directed Research and Development Program at the Lawrence Livermore National Laboratory [Project LLNL02-SI-008 under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 to CJ, KM]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 33 TC 19 Z9 20 U1 1 U2 12 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 10 PY 2011 VL 6 IS 8 AR e22631 DI 10.1371/journal.pone.0022631 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 827UM UT WOS:000295454200016 PM 21853040 ER PT J AU Eslick, JC Miller, DC AF Eslick, John C. Miller, David C. TI A multi-objective analysis for the retrofit of a pulverized coal power plant with a CO2 capture and compression process SO COMPUTERS & CHEMICAL ENGINEERING LA English DT Article DE Carbon capture; Power; Water minimization; Multi-objective optimization; Simulation; Modeling ID AMINE; OPTIMIZATION; CARBON AB The long term sustainability of fossil energy systems depends on reducing their carbon footprint and freshwater consumption. Much of the United States is or will be experiencing water shortages in the near future. Since power generation accounts for about a third of all freshwater use, reducing freshwater requirements will be of increasing importance. In addition, recent reports indicate that adding a carbon capture system may double water consumption. Thus, when designing a carbon capture and compression system, it is important to consider not only the direct costs, but also the increased environmental burden associated with increased freshwater requirements. To address these interrelated sustainability issues, a modular framework for multi-objective analysis was developed and demonstrated by minimizing freshwater consumption and levelized cost of electricity for the retrofit of a hypothetical 550 MW subcritical pulverized coal power plant with an MEA-based carbon capture and compression system. Published by Elsevier Ltd. C1 [Eslick, John C.; Miller, David C.] US DOE, Natl Energy Technol Lab, Morgantown, WV 26505 USA. RP Miller, DC (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26505 USA. EM david.miller@netl.doe.gov NR 31 TC 22 Z9 23 U1 0 U2 15 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0098-1354 J9 COMPUT CHEM ENG JI Comput. Chem. Eng. PD AUG 10 PY 2011 VL 35 IS 8 SI SI BP 1488 EP 1500 DI 10.1016/j.compchemeng.2011.03.020 PG 13 WC Computer Science, Interdisciplinary Applications; Engineering, Chemical SC Computer Science; Engineering GA 805KI UT WOS:000293724900012 ER PT J AU Zhong, ZX You, FQ AF Zhong, Zhixia You, Fengqi TI Oil spill response planning with consideration of physicochemical evolution of the oil slick: A multiobjective optimization approach SO COMPUTERS & CHEMICAL ENGINEERING LA English DT Article DE Planning; Oil spill response; MILP; Multi-objective optimization; ODE ID SUPPLY CHAINS; TACTICAL RESPONSE; UNCERTAINTY; DESIGN; OPERATIONS; NETWORKS; INDUSTRY; WATER AB This paper addresses the optimal planning of oil spill response operations under economic and responsive criteria, with consideration of oil weathering process. The economic criterion is measured by total cost, while the measure of responsiveness is the time span of the entire response operations. A bi-criterion, multiperiod mixed-integer linear programming (MILP) model is developed that simultaneously predicts the optimal time trajectories of oil volume and slick area, transportation profile, response resource utilization levels, cleanup schedule, and coastal protection plan. The MILP model integrates with the prediction of an oil weathering model that accounts for oil physicochemical properties, spilled amount, hydrodynamics, and weather conditions. The multi-objective optimization model is solved with the epsilon-constraint method and produces a Pareto optimal curve that reveals how the optimal total cost and response operations change under different specifications of responsiveness. We present two illustrative examples for oil spill incidents in the Gulf of Mexico and New England. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Zhong, Zhixia; You, Fengqi] Northwestern Univ, Evanston, IL 60208 USA. [You, Fengqi] Argonne Natl Lab, Argonne, IL 60439 USA. RP You, FQ (reprint author), Northwestern Univ, 2145 Sheridan Rd, Evanston, IL 60208 USA. EM you@northwestern.edu RI You, Fengqi/F-6894-2011; You, Fengqi/B-5040-2011 OI You, Fengqi/0000-0001-9609-4299 FU U.S. Department of Energy [DE-AC02-06CH11357] FX This research is supported by the U.S. Department of Energy under contract DE-AC02-06CH11357. NR 45 TC 26 Z9 28 U1 1 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0098-1354 J9 COMPUT CHEM ENG JI Comput. Chem. Eng. PD AUG 10 PY 2011 VL 35 IS 8 SI SI BP 1614 EP 1630 DI 10.1016/j.compchemeng.2011.01.009 PG 17 WC Computer Science, Interdisciplinary Applications; Engineering, Chemical SC Computer Science; Engineering GA 805KI UT WOS:000293724900020 ER PT J AU Zhang, Y Vouzis, P Sahinidis, NV AF Zhang, Yan Vouzis, Panagiotis Sahinidis, Nikolaos V. TI GPU simulations for risk assessment in CO2 geologic sequestration SO COMPUTERS & CHEMICAL ENGINEERING LA English DT Article DE CO2 sequestration; Risk assessment; Monte Carlo simulation; GPU parallel computing ID CARBON-DIOXIDE; MODEL AB A main concern for any CO2 sequestration system is whether it may leak CO2 over a long-term time horizon. The outcome depends on the competition between sequestration and leakage processes. Leakages may occur from failure of manmade material or through faults in the formations above the reservoir. A simple and computationally efficient simulator was constructed based on the CQUESTRA model (LeNeveu, 2008). To assess the risk associated with uncertainty in the values of uncertain parameters in this model, thousands of runs were carried out with the simulator on a general-purpose graphics processing unit (CPU). The CPU implementation was up to 64 times faster compared to a CPU implementation. In the absence of active faults around a single injection well, the model suggests that leakages of more than 1% of the total CO2 are unlikely during the 1000 year period after dissipation of temperature and pressure transients associated with injection. Leakage amounts for ten leaky wells are considerably higher, suggesting the critical importance of monitoring equipment after sequestration. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Zhang, Yan; Vouzis, Panagiotis; Sahinidis, Nikolaos V.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [Zhang, Yan; Sahinidis, Nikolaos V.] US DOE Natl Energy Technol Lab, Pittsburgh, PA USA. RP Sahinidis, NV (reprint author), Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. EM sahinidis@cmu.edu RI Sahinidis, Nikolaos/L-7951-2016 OI Sahinidis, Nikolaos/0000-0003-2087-9131 FU RES [DE-FE-0004000] FX This technical effort was performed in support of the National Energy Technology Laboratory's on-going research in CO2 capture under the RES contract DE-FE-0004000. The authors are thankful to D.M. LeNeveu and M. Small for extensive discussions on this subject and to three anonymous reviewers and the editors for many useful suggestions. NR 28 TC 10 Z9 10 U1 1 U2 12 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0098-1354 EI 1873-4375 J9 COMPUT CHEM ENG JI Comput. Chem. Eng. PD AUG 10 PY 2011 VL 35 IS 8 SI SI BP 1631 EP 1644 DI 10.1016/j.compchemeng.2011.03.023 PG 14 WC Computer Science, Interdisciplinary Applications; Engineering, Chemical SC Computer Science; Engineering GA 805KI UT WOS:000293724900021 ER PT J AU Wunderlich, B AF Wunderlich, Bernhard TI The influence of the liquid-to-solid transitions on the changes of macromolecules from disorder to order SO THERMOCHIMICA ACTA LA English DT Article DE Crystallization; Glass transition; Heat capacity; Macrophase; Microphase; Nanophase; Molecular motion; Phase size; Phase structure; Self-nucleation; Thermodynamics ID GLASS-TRANSITION; CRYSTALLIZATION KINETICS; ISOTACTIC POLYSTYRENE; POLY(ETHYLENE OXIDE); CRYSTAL NUCLEATION; POLYMER CRYSTALS; MOLECULAR-MOTION; SINGLE-CRYSTALS; BULK VISCOSITY; POLYETHYLENE AB When crystallizing macromolecules, one needs to recognize that they are sufficiently long to connect neighboring phases. This coupling between the phases is the reason that on ordering, practically all polymers develop a globally metastable, semicrystalline structure, consisting of multiple phases with different degrees of mobility. The ordered and amorphous phases are separated by nanophases of strained segments of molecule of nanometer dimensions, consisting of rigid-amorphous fractions, RAFs, which soften, above, within, or below the often very broad melting range of the ordered phases. Thus, ordering of a melt of macromolecules causes significant changes in the remaining amorphous phases. A summary of the various phases is given in terms of their structures, molecular vibrations, and large-amplitude motion as they influence the glass and order-disorder transitions. This is followed by a description of the limits of the classical nucleation theory of crystals when applied to macromolecules. Discussed in detail are the problems in primary and secondary nucleation which arise from the presence of RAFs. Special macromolecular nucleation processes that needed to be considered are the self-nucleation on cooling from above the melting temperature or on heating from above the glass transition temperature, and the molecular nucleation causing molar mass segregation on ordering. Finally, the glass transitions of the phases of various sizes and degree of order are discussed on hand of selected, pertinent examples. Published by Elsevier B.V. C1 [Wunderlich, Bernhard] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Wunderlich, Bernhard] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Wunderlich, B (reprint author), 200 Baltusrol Rd, Knoxville, TN 37934 USA. EM Wunderlich@CharterTN.net NR 61 TC 11 Z9 11 U1 0 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0040-6031 J9 THERMOCHIM ACTA JI Thermochim. Acta PD AUG 10 PY 2011 VL 522 IS 1-2 SI SI BP 2 EP 13 DI 10.1016/j.tca.2010.09.005 PG 12 WC Thermodynamics; Chemistry, Analytical; Chemistry, Physical SC Thermodynamics; Chemistry GA 816JG UT WOS:000294593900002 ER PT J AU Marks, N Schiffman, P Zierenberg, RA AF Marks, Naomi Schiffman, Peter Zierenberg, Robert A. TI High-grade contact metamorphism in the Reykjanes geothermal system: Implications for fluid-rock interactions at mid-oceanic ridge spreading centers SO GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS LA English DT Article DE alteration; contact metamorphism; hydrothermal systems; mid-ocean ridges ID HIGH-TEMPERATURE METAMORPHISM; BLACK SMOKER FLUIDS; MID-ATLANTIC RIDGE; MN-TI OXIDES; HYDROTHERMAL ALTERATION; OCEANIC-CRUST; SOUTHWEST ICELAND; MAGMA CHAMBERS; OMAN OPHIOLITE; THERMODYNAMIC ANALYSIS AB Granoblastic hornfels identified in cuttings from the Reykjanes seawater-dominated hydrothermal system contains secondary pyroxene, anorthite, and hornblendic amphibole in locally equilibrated assemblages. Granoblastic assemblages containing secondary orthopyroxene, olivine, and, locally, cordierite and spinel occur within groups of cuttings that show dominantly greenschist facies hydrothermal alteration. Granoblastic plagioclase ranges continuously in composition from An54 to An96, in contrast with relict igneous plagioclase that ranges from An42 to An80. Typical hydrothermal clinopyroxene compositions range from Wo(49)En(3)Fs(48) to Wo(53)En(30)Fo(17); clinopyroxene from the granoblastic grains is less calcic with an average composition of Wo(48)En(27)Fs(25). The hornfels is interpreted to form during contact metamorphism in response to dike emplacement, resulting in local recrystallization of previously hydrothermally altered basalts. Temperatures of granoblastic recrystallization estimated from the 2-pyroxene geothermometer range from 927 degrees C to 967 degrees C. Redox estimates based on the 2-oxide oxybarometer range from log fO(2) of -13.4 to -15.9. Granoblastic hornfels comprised of clinopyroxene, orthopyroxene, and calcic plagioclase have been described in a number of ancient hydrothermal systems from the conductive boundary layer between the hydrothermal system and the underlying magma source, most notably in Integrated Ocean Drilling Program Hole 1256D, Ocean Drilling Program Hole 504B, and in the Troodos and Oman ophiolites. To our knowledge, this is the first evidence of high-grade contact metamorphism from an active geothermal system and the first description of equilibrated amphibole-absent pyroxene hornfels facies contact metamorphism in any mid-ocean ridge (MOR) hydrothermal system. This contribution describes how these assemblages develop through metamorphic reactions and allows us to predict that higher-temperature assemblages may also be present in MOR systems. C1 [Marks, Naomi; Schiffman, Peter; Zierenberg, Robert A.] Univ Calif Davis, Dept Geol, Davis, CA 95616 USA. RP Marks, N (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. EM marks23@llnl.gov RI Zierenberg, Robert/F-9329-2012; OI Zierenberg, Robert/0000-0001-9384-7355; Marks, Naomi/0000-0002-4737-9877 FU National Science Foundation [EAR 0507518]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This study has benefited from collaborations with our colleagues W. A. Elders (U. C. Riverside), D. Bird, and E. Pope (Stanford University) and M. Reed (University of Oregon). We thank B. Joy (U. C. Davis) for assistance with electron microprobe analyses. The Iceland GeoSurvey and Hitaveita Sudurnesja are thanked for the use of their field data and providing technical details regarding the Reykjanes system. J. Alt, D. Vanko, and A. Koppers provided helpful and insightful reviews of this work. This work was supported by grant EAR 0507518 from the National Science Foundation. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. NR 108 TC 6 Z9 6 U1 3 U2 18 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 1525-2027 J9 GEOCHEM GEOPHY GEOSY JI Geochem. Geophys. Geosyst. PD AUG 10 PY 2011 VL 12 AR Q08007 DI 10.1029/2011GC003569 PG 25 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 807QF UT WOS:000293914100005 ER PT J AU Gary, SP Liu, KJ Winske, D AF Gary, S. Peter Liu, Kaijun Winske, Dan TI Bernstein instability driven by suprathermal protons in the ring current SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID EQUATORIAL NOISE; ULF WAVES; DISTRIBUTIONS; GENERATION; FREQUENCY; CLUSTER; MODEL AB Kinetic linear dispersion theory for electromagnetic fluctuations in a homogeneous collisionless plasma is used to study the properties of a proton Bernstein mode instability driven by a proton velocity distribution f(p)(v) such that partial derivative f(p)(v(perpendicular to))/partial derivative v(perpendicular to) > 0 at suprathermal values of v(perpendicular to) and v(parallel to) similar or equal to 0, where parallel to and perpendicular to denote directions parallel and perpendicular to the background magnetic field B(o), respectively. The model uses a three-component proton velocity distribution with f(p)(v) = f(1)(v) + f(2)(v(parallel to), v(perpendicular to)) - f(3)(v(parallel to), v(perpendicular to)), where f(1)(v) represents a Maxwellian thermal component. Here f(2) and f(3) are bi-Maxwellians with T(perpendicular to p) > T(parallel to p) and slightly different densities and temperatures to represent a suprathermal component consistent with proton perpendicular velocity distributions observed in the magnetospheric ring current. As is well established, the growth rate of the resulting instability has relative maxima near harmonics of the proton cyclotron frequency, the wave vector k satisfies 0 < k(parallel to) << k(perpendicular to), and wavelengths are of the order of or smaller than the proton gyroradius. The instability growth rate decreases as the electron/thermal proton temperature ratio increases and, for the dimensionless parameters chosen here, has a maximum value for the thermal proton beta of about 10%. C1 [Gary, S. Peter; Liu, Kaijun; Winske, Dan] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Gary, SP (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM pgary@lanl.gov; kaijun@lanl.gov; winske@lanl.gov RI Dong, Li/F-4931-2010 FU U.S. Department of Energy (DOE); Defense Threat Reduction Agency [IACRO 10-4946I, IACRO 10-4284I]; Los Alamos National Laboratory FX This work was performed under the auspices of the U.S. Department of Energy (DOE). It was supported primarily by the Defense Threat Reduction Agency under the Basic Research for Combating Weapons of Mass Destruction Program, (projects IACRO 10-4946I and IACRO 10-4284I). Further support has been provided by the Dynamic Radiation Environment Assimilation Model (DREAM) Project at Los Alamos National Laboratory. Robert Lysak thanks the reviewers for their assistance in evaluating this paper. NR 30 TC 11 Z9 11 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 10 PY 2011 VL 116 AR A08215 DI 10.1029/2011JA016543 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 807SY UT WOS:000293921200003 ER PT J AU Neidig, ML Sharma, J Yeh, HC Martinez, JS Conradson, SD Shreve, AP AF Neidig, Michael L. Sharma, Jaswinder Yeh, Hsin-Chih Martinez, Jennifer S. Conradson, Steven D. Shreve, Andrew P. TI Ag K-Edge EXAFS Analysis of DNA-Templated Fluorescent Silver Nanoclusters: Insight into the Structural Origins of Emission Tuning by DNA Sequence Variations SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID ABSORPTION; FLUOROPHORES; CLUSTERS; SPECTRA; MATRIX; ARGON; SIZE AB DNA-templated silver nanoclusters are promising biological fluorescence probes due to their useful fluorescence properties, including tunability of emission wavelength through DNA template sequence variations. Ag K-edge EXAFS analysis of DNA-templated silver nanoclusters has been used to obtain insight into silver nanocluster bonding, size, and structural correlations to fluorescence. The results indicate the presence of small silver nanoclusters (<30 silver atoms) containing Ag-Ag bonds and Ag-N/O ligations to DNA. The DNA sequence used leads to differences in silver-DNA ligation as well as silver nanocluster size. The results support a model in which cooperative effects of both Ag-DNA ligation and variations in cluster size lead to the tuning of the fluorescence emission of DNA-templated silver nanoclusters. C1 [Neidig, Michael L.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP Neidig, ML (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA. EM neidig@chem.rochester.edu; shreve@lanl.gov FU Department of Energy, Office of Basic Energy Sciences; Los Alamos National Laboratory; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC52-06NA25396]; Sandia National Laboratories [DE-AC04-94AL85000] FX We acknowledge support by the Department of Energy, Office of Basic Energy Sciences (A.P.S. and S.D.C.), and the Los Alamos National Laboratory Research LDRD-DR program (M.L.N., J.S., H.-C.Y., and J.S.M.). All experimental measurements were performed at the Stanford Synchrotron Radiation Laboratory, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. This work was also performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences, user facility at Los Alamos National Laboratory (Contract DE-AC52-06NA25396) and Sandia National Laboratories (Contract DE-AC04-94AL85000). NR 16 TC 47 Z9 47 U1 9 U2 89 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 10 PY 2011 VL 133 IS 31 BP 11837 EP 11839 DI 10.1021/ja202797w PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA 805ZA UT WOS:000293768400006 PM 21770404 ER PT J AU Wang, CM Cui, GK Luo, XY Xu, YJ Li, HR Dai, S AF Wang, Congmin Cui, Guokai Luo, Xiaoyan Xu, Yingjie Li, Haoran Dai, Sheng TI Highly Efficient and Reversible SO2 Capture by Tunable Azole-Based Ionic Liquids through Multiple-Site Chemical Absorption SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID CARBON-DIOXIDE CAPTURE; CO2 CAPTURE; FLUE-GAS; DENSITY; GENERATION; EXCHANGE; STORAGE AB A novel strategy for SO2 capture through multiple-site absorption in the anion of several azole-based ionic liquids is reported. An extremely high capacity of SO2 (> 3.5 mol/mol) and excellent reversibility (28 recycles) were achieved by tuning the interaction between the basic anion and acidic SO2. Spectroscopic investigations and quantum-mechanical calculations showed that such high SO2 capacity originates from the multiple sites of interaction between the anion and SO2. These tunable azole-based ionic liquids with multiple sites offer significant improvements over commonly used absorbents, indicating the promise for industrial applications in acid gas separation. C1 [Wang, Congmin; Cui, Guokai; Luo, Xiaoyan; Xu, Yingjie; Li, Haoran] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China. [Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. RP Wang, CM (reprint author), Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China. EM chewcm@zju.edu.cn; lihr@zju.edu.cn; dais@ornl.gov RI Wang, Congmin/I-7889-2013; Cui, Guokai/A-2393-2015; Dai, Sheng/K-8411-2015 OI Cui, Guokai/0000-0002-7223-2869; Dai, Sheng/0000-0002-8046-3931 FU National Natural Science Foundation of China [20976151, 20704035, 20990221]; Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy FX This work was supported by the National Natural Science Foundation of China (20976151, 20704035, and 20990221). S. D. was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. NR 39 TC 141 Z9 148 U1 13 U2 157 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 10 PY 2011 VL 133 IS 31 BP 11916 EP 11919 DI 10.1021/ja204808h PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 805ZA UT WOS:000293768400027 PM 21751802 ER PT J AU Choi, KM Jeon, HJ Kang, JK Yaghi, OM AF Choi, Kyung Min Jeon, Hyung Joon Kang, Jeung Ku Yaghi, Omar M. TI Heterogeneity within Order in Crystals of a Porous Metal-Organic Framework SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID CARBON; NANOPARTICLES; DIFFRACTION; ADSORPTION; SURFACE; DESIGN AB Generally, crystals of synthetic porous materials such as metal organic frameworks (MOFs) are commonly made up from one kind of repeating pore structure which predominates the whole material. Surprisingly, little is known about how to introduce heterogeneously arranged pores within a crystal of homogeneous pores without losing the crystalline nature of the material. Here, we outline a strategy for producing crystals of MOF-5 in which a system of meso- and macropores either permeates the whole crystal to make sponge-like crystals or is entirely enclosed by a thick crystalline microporous MOF-5 sheath to make pomegranate-like crystals. These new forms of crystals represent a new class of materials in which micro-, meso-, and macroporosity are juxtaposed and are directly linked unique arrangements known to be useful in natural systems but heretofore unknown in synthetic crystals. C1 [Choi, Kyung Min; Jeon, Hyung Joon; Kang, Jeung Ku] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea. [Kang, Jeung Ku; Yaghi, Omar M.] Korea Adv Inst Sci & Technol, NanoCentury KAIST Inst, Taejon 305701, South Korea. [Kang, Jeung Ku; Yaghi, Omar M.] Korea Adv Inst Sci & Technol, Grad Sch EEWS WCU, Taejon 305701, South Korea. [Yaghi, Omar M.] Univ Calif Los Angeles, UCLA DOE Inst Genom & Prote, Ctr Global Mentoring, Ctr Reticular Chem, Los Angeles, CA 90095 USA. [Yaghi, Omar M.] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA. RP Kang, JK (reprint author), Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, 373-1 Guseong Dong, Taejon 305701, South Korea. EM jeungku@kaist.ac.kr; yaghi@chem.ucla.edu RI Kang, Jeung ku/C-1610-2011; OI Yaghi, Omar/0000-0002-5611-3325 FU World Class University Program [R-31-2008-000-10055-0] FX We acknowledge the World Class University Program for the financial support (R-31-2008-000-10055-0). This study was also supported by JASRI/SPring-8. We thank Prof. Osamu Terasaki and Dr. Keiichi Miyasaka (KAIST) for assistance and helpful discussion with SEM, and acknowledge the invaluable discussion of Drs. Hiroyasu Furukawa (Yaghi research group) and Yoshiki Kubota (Osaka Prefecture University). NR 18 TC 79 Z9 79 U1 18 U2 131 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 10 PY 2011 VL 133 IS 31 BP 11920 EP 11923 DI 10.1021/ja204818q PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 805ZA UT WOS:000293768400028 PM 21749096 ER PT J AU Brown, CJ Miller, GM Johnson, MW Bergman, RG Raymond, KN AF Brown, Casey J. Miller, Gregory M. Johnson, Miles W. Bergman, Robert G. Raymond, Kenneth N. TI High-Turnover Supramolecular Catalysis by a Protected Ruthenium(II) Complex in Aqueous Solution SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID DIELS-ALDER; HOST; ISOMERIZATION; CAVITAND AB The design of a supramolecular catalyst capable of high-turnover catalysis is reported. A ruthenium(II) catalyst is incorporated into a water-soluble supramolecular assembly, imparting the ability to catalyze allyl alcohol isomerization. The catalyst is protected from decomposition by sequestration inside the host but retains its catalytic activity with scope governed by confinement within the host. This host-guest complex is a uniquely active supramolecular catalyst, capable of > 1000 turnovers. C1 [Bergman, Robert G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RP Bergman, RG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM rbergman@berkeley.edu; raymond@socrates.berkeley.edu FU Office of Science, Office of Basic Energy Sciences; Division of Chemical Sciences, Geosciences, and Biosciences of the U.S. Department of Energy at LBNL [DE-AC02-05CH11231]; National Science Foundation [DGE1106400] FX This research was supported by the Director, Office of Science, Office of Basic Energy Sciences, and the Division of Chemical Sciences, Geosciences, and Biosciences of the U.S. Department of Energy at LBNL (DE-AC02-05CH11231). M.W.J. acknowledges support from National Science Foundation Graduate Fellowship no. DGE1106400. NR 20 TC 61 Z9 61 U1 5 U2 50 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 10 PY 2011 VL 133 IS 31 BP 11964 EP 11966 DI 10.1021/ja205257x PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA 805ZA UT WOS:000293768400039 PM 21736357 ER PT J AU Holcombe, TW Norton, JE Rivnay, J Woo, CH Goris, L Piliego, C Griffini, G Sellinger, A Bredas, JL Salleo, A Frechet, JMJ AF Holcombe, Thomas W. Norton, Joseph E. Rivnay, Jonathan Woo, Claire H. Goris, Ludwig Piliego, Claudia Griffini, Gianmarco Sellinger, Alan Bredas, Jean-Luc Salleo, Alberto Frechet, Jean M. J. TI Steric Control of the Donor/Acceptor Interface: Implications in Organic Photovoltaic Charge Generation SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID HETEROJUNCTION SOLAR-CELLS; DENSITY-FUNCTIONAL THEORY; OPEN-CIRCUIT VOLTAGE; ELECTRON-TRANSFER; TRANSFER STATE; TRANSFER EXCITONS; POLYMER; PERFORMANCE; ACCEPTOR; BLENDS AB The performance of organic photovoltaic (OPV) devices is currently limited by modest short-circuit current densities. Approaches toward improving this output parameter may provide new avenues to advance OPV technologies and the basic science of charge transfer in organic semiconductors. This work highlights how steric control of the charge separation interface can be effectively tuned in OPV devices. By introducing an octylphenyl substituent onto the investigated polymer backbones, the thermally relaxed charge-transfer state, and potentially excited charge-transfer states, can be raised in energy. This decreases the barrier to charge separation and results in increased photocurrent generation. This finding is of particular significance for nonfullerene OPVs, which have many potential advantages such as tunable energy levels and spectral breadth, but are prone to poor exciton separation efficiencies. Computational, spectroscopic, and synthetic methods were combined to develop a structure-property relationship that correlates polymer substituents with charge-transfer state energies and, ultimately, device efficiencies. C1 [Holcombe, Thomas W.; Frechet, Jean M. J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Woo, Claire H.; Frechet, Jean M. J.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. [Woo, Claire H.; Piliego, Claudia; Griffini, Gianmarco; Frechet, Jean M. J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Frechet, Jean M. J.] King Abdullah Univ Sci & Technol, Thuwal 239556900, Saudi Arabia. [Rivnay, Jonathan; Goris, Ludwig; Sellinger, Alan; Salleo, Alberto] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA. [Norton, Joseph E.; Bredas, Jean-Luc] Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA. [Norton, Joseph E.; Bredas, Jean-Luc] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA. [Goris, Ludwig] Hasselt Univ, Inst Mat Res IMO, Diepenbeek, Belgium. [Griffini, Gianmarco] Politecn Milan, Dept Chem, I-20133 Milan, Italy. RP Frechet, JMJ (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM frechet@berkeley.edu RI Griffini, Gianmarco/F-4696-2011; Bredas, Jean-Luc/A-3431-2008; Sellinger, Alan/C-6250-2015; OI Griffini, Gianmarco/0000-0002-9924-1722; Bredas, Jean-Luc/0000-0001-7278-4471; Sellinger, Alan/0000-0001-6705-1548; Frechet, Jean /0000-0001-6419-0163 FU Center for Advanced Molecular Photovoltaics [KUS-C1-015-21]; King Abdullah University of Science and Technology (KAUST); U.S. Department of Energy [DE-AC02-05CH11231]; National Science Foundation FX This work was supported by the Center for Advanced Molecular Photovoltaics (Award No. KUS-C1-015-21), supported by King Abdullah University of Science and Technology (KAUST), and the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 (synthesis and some device characterization work). T.W.H., C.H.W., and J.R. thank the National Science Foundation for graduate research fellowships. We gratefully acknowledge Polyera Inc. and Paul Armstrong for providing the Active Ink N2200 and PDL respectively, used in this study. Paul Armstrong and Yoshi Miyamoto are thanked for assistance with device optimization. We also thank David Kavulak and Barry Thompson for helpful discussions. NR 57 TC 132 Z9 132 U1 4 U2 106 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 10 PY 2011 VL 133 IS 31 BP 12106 EP 12114 DI 10.1021/ja203235z PG 9 WC Chemistry, Multidisciplinary SC Chemistry GA 805ZA UT WOS:000293768400055 PM 21688785 ER PT J AU Comerford, JM Pooley, D Gerke, BF Madejski, GM AF Comerford, Julia M. Pooley, David Gerke, Brian F. Madejski, Greg M. TI CHANDRA OBSERVATIONS OF A 1.9 kpc SEPARATION DOUBLE X-RAY SOURCE IN A CANDIDATE DUAL ACTIVE GALACTIC NUCLEUS GALAXY AT z=0.16 SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE galaxies: active; galaxies: individual (SDSS J171544.05+600835.7); galaxies: interactions; galaxies: nuclei ID NARROW-LINE REGION; DIGITAL-SKY-SURVEY; BLACK-HOLE; O III; SMALL SCALES; MERGERS; KINEMATICS; DISCOVERY; EMISSION; QUASARS AB We report Chandra observations of a double X-ray source in the z = 0.1569 galaxy SDSS J171544.05+600835.7. The galaxy was initially identified as a dual active galactic nucleus (AGN) candidate based on the double-peaked [O III] lambda 5007 emission lines, with a line-of-sight velocity separation of 350 km s(-1), in its Sloan Digital Sky Survey spectrum. We used the Kast Spectrograph at Lick Observatory to obtain two long-slit spectra of the galaxy at two different position angles, which reveal that the two Type 2 AGN emission components have not only a velocity offset, but also a projected spatial offset of 1.9 h(70)(-1) kpc on the sky. Chandra/ACIS observations of two X-ray sources with the same spatial offset and orientation as the optical emission suggest that the galaxy most likely contains Compton-thick dual AGNs, although the observations could also be explained by AGN jets. Deeper X-ray observations that reveal Fe K lines, if present, would distinguish between the two scenarios. The observations of a double X-ray source in SDSS J171544.05+600835.7 are a proof of concept for a new, systematic detection method that selects promising dual AGN candidates from ground-based spectroscopy that exhibits both velocity and spatial offsets in the AGN emission features. C1 [Comerford, Julia M.; Pooley, David] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA. [Gerke, Brian F.; Madejski, Greg M.] Stanford Linear Accelerator Ctr, Kavli Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94725 USA. RP Comerford, JM (reprint author), Univ Texas Austin, Dept Astron, Austin, TX 78712 USA. FU W.J. McDonald Postdoctoral Fellowship; College of Natural Sciences; Department of Astronomy at the University of Texas at Austin; McDonald Observatory; U.S. Department of Energy [DE-AC02-76SF00515] FX J.M.C. acknowledges insightful discussions with Jenny Greene, as well as support from a W.J. McDonald Postdoctoral Fellowship. The Texas Cosmology Center is supported by the College of Natural Sciences and the Department of Astronomy at the University of Texas at Austin and the McDonald Observatory. B. F. G. and G. M. M. were supported by the U.S. Department of Energy under contract number DE-AC02-76SF00515. NR 39 TC 33 Z9 33 U1 0 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 2041-8205 J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD AUG 10 PY 2011 VL 737 IS 1 AR L19 DI 10.1088/2041-8205/737/1/L19 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 797PC UT WOS:000293138800019 ER PT J AU Louca, D Yan, JQ Llobet, A Arita, R AF Louca, Despina Yan, Jiaqiang Llobet, Anna Arita, Ryotaro TI Suppression of superconductivity in Fe chalcogenides by annealing: A reverse effect to pressure SO PHYSICAL REVIEW B LA English DT Article AB Superconductivity in FeTe1-xSex can be controlled by annealing in the absence of extrinsic influences. Using neutron diffraction, we show that the superconducting transition temperature (T-C) sensitively depends on the atomic configurations of the Te and Se ions. Low-temperature annealing not only homogenizes the Te and Se ion distribution, it suppresses T-C because of changes in the chalcogen ion's z parameter. In particular, the height of Te from the Fe basal plane is much reduced while that for Se shows a modest increase. These trends are the reverse of the effects induced by pressure. C1 [Louca, Despina] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA. [Yan, Jiaqiang] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Llobet, Anna] Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Arita, Ryotaro] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan. [Arita, Ryotaro] JST TRIP, Tokyo 1138656, Japan. RP Louca, D (reprint author), Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA. RI Llobet, Anna/B-1672-2010; Arita, Ryotaro/D-5965-2012; Lujan Center, LANL/G-4896-2012 OI Arita, Ryotaro/0000-0001-5725-072X; FU US Department of Energy, Office of Basic Energy Sciences [DE-FG02-01ER45927, DE-AC02-07CH11358]; Division of Scientific User Facilities [DE-AC52-06NA25396] FX The authors would like to thank K. Horigane for providing high-pressure data on the FeTe1-xSex system for comparison, and W. E. Straszheim for his help in the elemental analysis. This work is supported by the US Department of Energy, Office of Basic Energy Sciences under Contracts No. DE-FG02-01ER45927 and No. DE-AC02-07CH11358 and the Division of Scientific User Facilities under Contract No. DE-AC52-06NA25396. NR 33 TC 7 Z9 7 U1 1 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 10 PY 2011 VL 84 IS 5 AR 054522 DI 10.1103/PhysRevB.84.054522 PG 6 WC Physics, Condensed Matter SC Physics GA 805LX UT WOS:000293729000011 ER PT J AU Kang, ZB Yuan, F AF Kang, Zhong-Bo Yuan, Feng TI Single spin asymmetry scaling in the forward rapidity region at RHIC SO PHYSICAL REVIEW D LA English DT Article ID COLOR GLASS CONDENSATE; INCLUSIVE HADRON-PRODUCTION; ODD PARTON DISTRIBUTIONS; DRELL-YAN-PROCESS; TO-LEADING ORDER; FRAGMENTATION FUNCTIONS; P(T) DISTRIBUTIONS; MEAN P(T); 7 TEV; COLLISIONS AB We investigate the scaling properties in inclusive hadron production and the associated single transverse spin asymmetry in the forward rapidity region at RHIC. We find that the spin-averaged experimental data in both pp and dAu collisions demonstrates a transverse-momentum-dependent geometric scaling. We introduce the transverse-momentum-dependent Collins fragmentation function to study the scaling of the single transverse spin asymmetries. The general feature of the scaling analysis is consistent with the experimental observations, in particular, for the transverse momentum dependence of the spin asymmetries at RHIC energy. We further propose to probe the saturation scale of nuclei by measuring the spin asymmetry normalized by that in pp scattering at low transverse momentum. C1 [Kang, Zhong-Bo; Yuan, Feng] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Yuan, Feng] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Kang, ZB (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. EM zkang@bnl.gov; fyuan@lbl.gov RI Yuan, Feng/N-4175-2013; Kang, Zhongbo/P-3645-2014 FU U.S. Department of Energy [DE-AC02-05CH11231, DE-AC02-98CH10886]; RIKEN, Brookhaven National Laboratory FX We thank L. McLerran and R. Venugopalan for helpful discussions and thank J. L. Albacete for providing us with their unintegrated gluon distribution used in our numerical estimate. We also thank L. Bland, L. Eun, S. Heppelmann, J. H. Lee, A. Ogawa, and F. Videbaek for the discussions on the experimental data. This work was supported in part by the U.S. Department of Energy under Grant No. DE-AC02-05CH11231. We are grateful to RIKEN, Brookhaven National Laboratory, and the U.S. Department of Energy (Contract No. DE-AC02-98CH10886) for supporting this work. NR 82 TC 28 Z9 28 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 10 PY 2011 VL 84 IS 3 AR 034019 DI 10.1103/PhysRevD.84.034019 PG 8 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 805ME UT WOS:000293729800002 ER PT J AU Bollinger, RK White, BD Neumeier, JJ Sandim, HRZ Suzuki, Y dos Santos, CAM Avci, R Migliori, A Betts, JB AF Bollinger, R. K. White, B. D. Neumeier, J. J. Sandim, H. R. Z. Suzuki, Y. dos Santos, C. A. M. Avci, R. Migliori, A. Betts, J. B. TI Observation of a Martensitic Structural Distortion in V, Nb, and Ta SO PHYSICAL REVIEW LETTERS LA English DT Article ID PHASE-TRANSITION; PHONON-DISPERSION; VANADIUM; NIOBIUM; HYDROGEN; OXYGEN; SUPERCONDUCTIVITY; TANTALUM; LITHIUM; SODIUM AB Thermal-expansion measurements of the Group 5 elements V, Nb, and Ta reveal a structural distortion below 300 K. Data for single-crystalline Nb and Ta display anisotropic thermal expansion, martensitic in character, that is inconsistent with cubic crystal structures at low temperature. Published results on V show similar behavior. Interstitial impurities suppress the transition. C1 [Bollinger, R. K.; White, B. D.; Neumeier, J. J.; Avci, R.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. [Sandim, H. R. Z.; dos Santos, C. A. M.] USP, Escola Engn Lorena, BR-12602810 Lorena, SP, Brazil. [Suzuki, Y.; Migliori, A.; Betts, J. B.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA. RP Bollinger, RK (reprint author), Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. RI dos Santos, Carlos/C-1619-2012; Sandim, Hugo/F-2778-2013 OI Sandim, Hugo/0000-0003-4522-6639 FU U. S. Department of Energy (DOE) [DE-FG-06ER46269]; National Science Foundation (NSF) [DMR-0907036, DMR-0654118]; FAPESP [2009/14524-6]; CNPq [301334/2007-2, 490182/2009-7]; State of Florida FX We acknowledge discussions with S. M. Francoual, M. Kopczyk, R. Paul, D. J. Safarik, R. J. Smith, S. W. Sofie, S. M. Shapiro, and M. von Zimmerman. This material is based upon work supported by the U. S. Department of Energy (DOE) (DE-FG-06ER46269), the National Science Foundation (NSF) (DMR-0907036), FAPESP (2009/14524-6), and CNPq (301334/2007-2 and 490182/2009-7). Work at the National High Magnetic Field Laboratory at Los Alamos National Laboratory (LANL is operated by LANS LLC) was supported by NSF grant DMR-0654118, the DOE, and the State of Florida. NR 28 TC 5 Z9 5 U1 3 U2 29 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 10 PY 2011 VL 107 IS 7 AR 075503 DI 10.1103/PhysRevLett.107.075503 PG 4 WC Physics, Multidisciplinary SC Physics GA 805MK UT WOS:000293730600007 PM 21902404 ER PT J AU Qian, X Allada, K Dutta, C Huang, J Katich, J Wang, Y Zhang, Y Aniol, K Annand, JRM Averett, T Benmokhtar, F Bertozzi, W Bradshaw, PC Bosted, P Camsonne, A Canan, M Cates, GD Chen, C Chen, JP Chen, W Chirapatpimol, K Chudakov, E Cisbani, E Cornejo, JC Cusanno, F Dalton, MM Deconinck, W de Jager, CW De Leo, R Deng, X Deur, A Ding, H Dolph, PAM Dutta, D El Fassi, L Frullani, S Gao, H Garibaldi, F Gaskell, D Gilad, S Gilman, R Glamazdin, O Golge, S Guo, L Hamilton, D Hansen, O Higinbotham, DW Holmstrom, T Huang, M Ibrahim, HF Iodice, M Jiang, X Jin, G Jones, MK Kelleher, A Kim, W Kolarkar, A Korsch, W LeRose, JJ Li, X Li, Y Lindgren, R Liyanage, N Long, E Lu, HJ Margaziotis, DJ Markowitz, P Marrone, S McNulty, D Meziani, ZE Michaels, R Moffit, B Camacho, CM Nanda, S Narayan, A Nelyubin, V Norum, B Oh, Y Osipenko, M Parno, D Peng, JC Phillips, SK Posik, M Puckett, AJR Qiang, Y Rakhman, A Ransome, RD Riordan, S Saha, A Sawatzky, B Schulte, E Shahinyan, A Shabestari, MH Sirca, S Stepanyan, S Subedi, R Sulkosky, V Tang, LG Tobias, A Urciuoli, GM Vilardi, I Wang, K Wojtsekhowski, B Yan, X Yao, H Ye, Y Ye, Z Yuan, L Zhan, X Zhang, YW Zhao, B Zheng, X Zhu, L Zhu, X Zong, X AF Qian, X. Allada, K. Dutta, C. Huang, J. Katich, J. Wang, Y. Zhang, Y. Aniol, K. Annand, J. R. M. Averett, T. Benmokhtar, F. Bertozzi, W. Bradshaw, P. C. Bosted, P. Camsonne, A. Canan, M. Cates, G. D. Chen, C. Chen, J-P Chen, W. Chirapatpimol, K. Chudakov, E. Cisbani, E. Cornejo, J. C. Cusanno, F. Dalton, M. M. Deconinck, W. de Jager, C. W. De Leo, R. Deng, X. Deur, A. Ding, H. Dolph, P. A. M. Dutta, D. El Fassi, L. Frullani, S. Gao, H. Garibaldi, F. Gaskell, D. Gilad, S. Gilman, R. Glamazdin, O. Golge, S. Guo, L. Hamilton, D. Hansen, O. Higinbotham, D. W. Holmstrom, T. Huang, M. Ibrahim, H. F. Iodice, M. Jiang, X. Jin, G. Jones, M. K. Kelleher, A. Kim, W. Kolarkar, A. Korsch, W. LeRose, J. J. Li, X. Li, Y. Lindgren, R. Liyanage, N. Long, E. Lu, H-J Margaziotis, D. J. Markowitz, P. Marrone, S. McNulty, D. Meziani, Z-E Michaels, R. Moffit, B. Camacho, C. Munoz Nanda, S. Narayan, A. Nelyubin, V. Norum, B. Oh, Y. Osipenko, M. Parno, D. Peng, J. C. Phillips, S. K. Posik, M. Puckett, A. J. R. Qiang, Y. Rakhman, A. Ransome, R. D. Riordan, S. Saha, A. Sawatzky, B. Schulte, E. Shahinyan, A. Shabestari, M. H. Sirca, S. Stepanyan, S. Subedi, R. Sulkosky, V. Tang, L-G Tobias, A. Urciuoli, G. M. Vilardi, I. Wang, K. Wojtsekhowski, B. Yan, X. Yao, H. Ye, Y. Ye, Z. Yuan, L. Zhan, X. Zhang, Y-W Zhao, B. Zheng, X. Zhu, L. Zhu, X. Zong, X. CA Jefferson Lab Hall A Collaboration TI Single Spin Asymmetries in Charged Pion Production from Semi-Inclusive Deep Inelastic Scattering on a Transversely Polarized He-3 Target at Q(2)=1.4-2.7 GeV2 SO PHYSICAL REVIEW LETTERS LA English DT Article ID PARTON DISTRIBUTIONS; STATE INTERACTIONS; Q(2) EVOLUTION; DRELL-YAN; LEPTOPRODUCTION; INEQUALITY; PROTON; QUARKS; QCD AB We report the first measurement of target single spin asymmetries in the semi-inclusive He-3(e; e' pi(+/-))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV2. The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The pi(+/-) Collins moments for He-3 are consistent with zero, except for the pi(+) moment at x = 0.35, which deviates from zero by 2.3 sigma. While the pi(-) Sivers moments are consistent with zero, the pi(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to He-3, and are largely consistent with the predictions of phenomenological fits and quark model calculations. C1 [Qian, X.; Chen, W.; Gao, H.; Huang, M.; Qiang, Y.; Zhu, X.; Zong, X.] Duke Univ, Durham, NC 27708 USA. [Qian, X.] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA. [Allada, K.; Dutta, C.; Kolarkar, A.; Korsch, W.] Univ Kentucky, Lexington, KY 40506 USA. [Huang, J.; Bertozzi, W.; Deconinck, W.; Gilad, S.; Moffit, B.; Puckett, A. J. R.; Sulkosky, V.; Zhan, X.] MIT, Cambridge, MA 02139 USA. [Katich, J.; Averett, T.; Bradshaw, P. C.; Kelleher, A.; Zhao, B.] Coll William & Mary, Williamsburg, VA 23187 USA. [Wang, Y.; Peng, J. C.; Zhu, L.] Univ Illinois, Urbana, IL 61801 USA. [Zhang, Y.; Zhang, Y-W] Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China. [Aniol, K.; Cornejo, J. C.; Margaziotis, D. J.] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA. [Annand, J. R. M.; Hamilton, D.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland. [Benmokhtar, F.; Parno, D.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Bosted, P.; Camsonne, A.; Chen, J-P; Chudakov, E.; de Jager, C. W.; Deur, A.; Gaskell, D.; Gilman, R.; Hansen, O.; Higinbotham, D. W.; Jones, M. K.; LeRose, J. J.; Michaels, R.; Moffit, B.; Nanda, S.; Qiang, Y.; Saha, A.; Sawatzky, B.; Sulkosky, V.; Wojtsekhowski, B.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Canan, M.; Golge, S.] Old Dominion Univ, Norfolk, VA 23529 USA. [Cates, G. D.; Chirapatpimol, K.; Dalton, M. M.; Deng, X.; Ding, H.; Dolph, P. A. M.; Jin, G.; Lindgren, R.; Liyanage, N.; Nelyubin, V.; Norum, B.; Riordan, S.; Shabestari, M. H.; Subedi, R.; Tobias, A.; Wang, K.; Zheng, X.] Univ Virginia, Charlottesville, VA 22904 USA. [Chen, C.; Tang, L-G; Ye, Z.; Yuan, L.; Zhu, L.] Hampton Univ, Hampton, VA 23187 USA. [Cisbani, E.; Cusanno, F.; Frullani, S.; Garibaldi, F.; Urciuoli, G. M.] Ist Nazl Fis Nucl, Sez Roma, I-00161 Rome, Italy. [Cisbani, E.; Cusanno, F.; Frullani, S.; Garibaldi, F.] Ist Super Sanita, I-00161 Rome, Italy. [De Leo, R.; Marrone, S.; Vilardi, I.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [De Leo, R.; Marrone, S.; Vilardi, I.] Univ Bari, I-70126 Bari, Italy. [Dutta, D.; Narayan, A.] Mississippi State Univ, Mississippi State, MS 39762 USA. [El Fassi, L.; Gilman, R.; Jiang, X.; Ransome, R. D.; Schulte, E.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Glamazdin, O.] Kharkov Phys & Technol Inst, UA-61108 Kharkov, Ukraine. [Guo, L.; Jiang, X.; Puckett, A. J. R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Holmstrom, T.] Longwood Univ, Farmville, VA 23909 USA. [Ibrahim, H. F.] Cairo Univ, Giza 12613, Egypt. [Iodice, M.] Ist Nazl Fis Nucl, Sez Roma3, I-00146 Rome, Italy. [Kim, W.; Oh, Y.; Stepanyan, S.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Li, X.; Li, Y.] China Inst Atom Energy, Beijing, Peoples R China. [Long, E.] Kent State Univ, Kent, OH 44242 USA. [Lu, H-J; Yan, X.; Ye, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Markowitz, P.] Florida Int Univ, Miami, FL 33199 USA. [McNulty, D.] Univ Massachusetts, Amherst, MA 01003 USA. [Meziani, Z-E; Posik, M.; Sawatzky, B.; Yao, H.] Temple Univ, Philadelphia, PA 19122 USA. [Camacho, C. Munoz] Univ Clermont Ferrand, IN2P3, F-63177 Aubiere, France. [Osipenko, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Phillips, S. K.] Univ New Hampshire, Durham, NH 03824 USA. [Rakhman, A.] Syracuse Univ, Syracuse, NY 13244 USA. [Shahinyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Sirca, S.] Univ Ljubljana, SI-1000 Ljubljana, Slovenia. RP Qian, X (reprint author), Duke Univ, Durham, NC 27708 USA. EM xqian@caltech.edu RI Gao, Haiyan/G-2589-2011; Deconinck, Wouter/F-4054-2012; Zhu, Xiaofeng/B-9493-2011; Zhao, Bo/J-6819-2012; Rakhman, Adurahim/K-8146-2012; Higinbotham, Douglas/J-9394-2014; Osipenko, Mikhail/N-8292-2015; Cisbani, Evaristo/C-9249-2011; Dalton, Mark/B-5380-2016; Narayan, Amrendra/Q-3243-2016; Parno, Diana/B-7546-2017; Ye, Zhihong/E-6651-2017 OI Qian, Xin/0000-0002-7903-7935; Zhao, Bo/0000-0003-3171-5335; Rakhman, Adurahim/0000-0002-9880-6074; Higinbotham, Douglas/0000-0003-2758-6526; Osipenko, Mikhail/0000-0001-9618-3013; Cisbani, Evaristo/0000-0002-6774-8473; Dalton, Mark/0000-0001-9204-7559; Narayan, Amrendra/0000-0003-3814-9559; Parno, Diana/0000-0002-9363-0401; Ye, Zhihong/0000-0002-1873-2344 FU U. S. National Science Foundation; DOE [DE-AC05-06OR23177] FX We acknowledge the outstanding support of the JLab Hall A technical staff and the Accelerator Division in accomplishing this experiment. This work was supported in part by the U. S. National Science Foundation, and by DOE contract number DE-AC05-06OR23177, under which the Jefferson Science Associates (JSA) operates the Thomas Jefferson National Accelerator Facility. NR 54 TC 95 Z9 96 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 10 PY 2011 VL 107 IS 7 AR 072003 DI 10.1103/PhysRevLett.107.072003 PG 6 WC Physics, Multidisciplinary SC Physics GA 805MK UT WOS:000293730600005 PM 21902386 ER PT J AU Kritsuk, AG Nordlund, A Collins, D Padoan, P Norman, ML Abel, T Banerjee, R Federrath, C Flock, M Lee, D Li, PS Muller, WC Teyssier, R Ustyugov, SD Vogel, C Xu, H AF Kritsuk, Alexei G. Nordlund, Ake Collins, David Padoan, Paolo Norman, Michael L. Abel, Tom Banerjee, Robi Federrath, Christoph Flock, Mario Lee, Dongwook Li, Pak Shing Mueller, Wolf-Christian Teyssier, Romain Ustyugov, Sergey D. Vogel, Christian Xu, Hao TI COMPARING NUMERICAL METHODS FOR ISOTHERMAL MAGNETIZED SUPERSONIC TURBULENCE SO ASTROPHYSICAL JOURNAL LA English DT Article DE ISM: structure; magnetohydrodamics (MHD); methods: numerical; turbulence ID ADAPTIVE MESH REFINEMENT; INITIAL MASS FUNCTION; HYPERBOLIC CONSERVATION-LAWS; PIECEWISE PARABOLIC METHOD; RADIATION MAGNETOHYDRODYNAMICS CODE; MOLECULAR CLOUDS PREDICTIONS; GODUNOV-TYPE SCHEMES; STAR-FORMING CLOUDS; 2 SPACE DIMENSIONS; CONSTRAINED TRANSPORT AB Many astrophysical applications involve magnetized turbulent flows with shock waves. Ab initio star formation simulations require a robust representation of supersonic turbulence in molecular clouds on a wide range of scales imposing stringent demands on the quality of numerical algorithms. We employ simulations of supersonic super-Alfvenic turbulence decay as a benchmark test problem to assess and compare the performance of nine popular astrophysical MHD methods actively used to model star formation. The set of nine codes includes: ENZO, FLASH, KT-MHD, LL-MHD, PLUTO, PPML, RAMSES, STAGGER, and ZEUS. These applications employ a variety of numerical approaches, including both split and unsplit, finite difference and finite volume, divergence preserving and divergence cleaning, a variety of Riemann solvers, and a range of spatial reconstruction and time integration techniques. We present a comprehensive set of statistical measures designed to quantify the effects of numerical dissipation in these MHD solvers. We compare power spectra for basic fields to determine the effective spectral bandwidth of the methods and rank them based on their relative effective Reynolds numbers. We also compare numerical dissipation for solenoidal and dilatational velocity components to check for possible impacts of the numerics on small-scale density statistics. Finally, we discuss the convergence of various characteristics for the turbulence decay test and the impact of various components of numerical schemes on the accuracy of solutions. The nine codes gave qualitatively the same results, implying that they are all performing reasonably well and are useful for scientific applications. We show that the best performing codes employ a consistently high order of accuracy for spatial reconstruction of the evolved fields, transverse gradient interpolation, conservation law update step, and Lorentz force computation. The best results are achieved with divergence-free evolution of the magnetic field using the constrained transport method and using little to no explicit artificial viscosity. Codes that fall short in one or more of these areas are still useful, but they must compensate for higher numerical dissipation with higher numerical resolution. This paper is the largest, most comprehensive MHD code comparison on an application-like test problem to date. We hope this work will help developers improve their numerical algorithms while helping users to make informed choices about choosing optimal applications for their specific astrophysical problems. C1 [Kritsuk, Alexei G.; Collins, David; Norman, Michael L.; Xu, Hao] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Kritsuk, Alexei G.; Collins, David; Norman, Michael L.; Xu, Hao] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA. [Kritsuk, Alexei G.; Nordlund, Ake; Collins, David; Padoan, Paolo; Abel, Tom; Banerjee, Robi; Li, Pak Shing; Teyssier, Romain] Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA. [Nordlund, Ake; Banerjee, Robi; Xu, Hao] Univ Copenhagen, Ctr Star & Planet Format, DK-2100 Copenhagen, Denmark. [Nordlund, Ake; Banerjee, Robi; Xu, Hao] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Collins, David] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Padoan, Paolo] Univ Barcelona, ICREA, E-08028 Barcelona, Spain. [Padoan, Paolo] Univ Barcelona, ICC, E-08028 Barcelona, Spain. [Norman, Michael L.] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA. [Abel, Tom] Stanford Linear Accelerator Ctr, Kavli Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94025 USA. [Abel, Tom] Stanford Phys Dept, Menlo Pk, CA 94025 USA. [Federrath, Christoph] Heidelberg Univ, Inst Theoret Astrophys, Zentrum Astron, D-69120 Heidelberg, Germany. [Banerjee, Robi] Hamburger Sternwarte, D-21029 Hamburg, Germany. [Federrath, Christoph; Flock, Mario] Max Planck Inst Astron, D-69117 Heidelberg, Germany. [Federrath, Christoph] Ecole Normale Super Lyon, CRAL, F-69364 Lyon, France. [Lee, Dongwook] FLASH Ctr Computat Sci, Chicago, IL 60637 USA. [Li, Pak Shing] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [Mueller, Wolf-Christian; Vogel, Christian] Max Planck Inst Plasma Phys, D-85748 Garching, Germany. [Teyssier, Romain] CEA, IRFU, SAp, F-91191 Gif Sur Yvette, France. [Teyssier, Romain] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland. [Ustyugov, Sergey D.] Russian Acad Sci, MV Keldysh Appl Math Inst, Moscow 125047, Russia. RP Kritsuk, AG (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. EM akritsuk@ucsd.edu; aake@nbi.dk; dccollins@lanl.gov; ppadoan@icc.ub.edu; mlnorman@ucsd.edu; tabel@stanford.edu; banerjee@hs.uni-hamburg.de; chfeder@ita.uni-heidelberg.de; flock@mpia.de; dongwook@flash.uchicago.edu; psli@berkeley.edu; Wolf.Mueller@ipp.mpg.de; romain.teyssier@cea.fr; ustyugs@keldysh.ru; cvogel@ipp.mpg.de; hao_xu@lanl.gov RI Xu, Hao/B-8734-2014; Nordlund, Aake/M-4528-2014; OI Xu, Hao/0000-0003-4084-9925; Nordlund, Aake/0000-0002-2219-0541; Padoan, Paolo/0000-0002-5055-5800 FU National Science Foundation [PHY05-51164, AST0507768, AST0607675, AST0808184, AST0908740]; Los Alamos National Laboratory, LLC [DE-AC52-06NA25396, B523820]; Danish Natural Research Council; MICINN (Spanish Ministry for Science and Innovation) [AYA2010-16833]; Deutsche Forschungsgemeinschaft [KL1358/4-1]; European Research Council under European Community [247060]; Leibniz Rechenzentrum [pr32lo]; Julich Supercomputing Centre [hhd20]; DOE; NASA [NNG06-GH96G, NNX09AK31G]; [PIRG07-GA-2010-261359] FX This work was prepared in part during the workshop "Star Formation Through Cosmic Time" at the KITP in Santa Barbara, and was supported in part by the National Science Foundation under grant no. PHY05-51164. Computer support for this project was partly provided by the San Diego Supercomputer Center, through an LRAC supercomputer allocation in support of the Computational Astrophysics Data Analysis Center. A. K. was supported in part by the National Science Foundation under grants AST0507768, AST0607675, AST0808184, and AST0908740. D. C. was supported in part by the National Science Foundation under grants AST0808184, and AST0908740. D. C. and H. X. were supported in part by Los Alamos National Laboratory, LLC for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. Simulations with ENZO and PPML utilized NSF TeraGrid resources provided by SDSC, NICS, and TACC through allocation MCA07S014. A.N. was supported in part by the Danish Natural Research Council. STAGGER code results were computed at the University of Copenhagen node of the Danish Center for Scientific Computing. P. P. is supported by MICINN (Spanish Ministry for Science and Innovation) grant AYA2010-16833 and by the FP7-PEOPLE-2010-RG grant PIRG07-GA-2010-261359. R. B. was funded during this research by the Deutsche Forschungsgemeinschaft under grant KL1358/4-1. C. F. has received funding from the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013 grant agreement no. 247060) for the research presented in this work. The FLASH simulations were run at the Leibniz Rechenzentrum (grant pr32lo) and the Julich Supercomputing Centre (grant hhd20). The FLASH code has been developed by the DOE-supported ASC/Alliance Center for Astrophysical Thermonuclear Flashes at the University of Chicago. D. L. was supported by the U.S. Department of Energy under grant no. B523820 to the Center for Astrophysical Thermonuclear Flashes at the University of Chicago. M. F. thanks Andrea Mignone and Natalia Dzyurkevich for their comments on this test. The PLUTO calculation was done on the "Theo" cluster of MPIA Heidelberg. P. S. L. is supported by the NASA ATFP grants NNG06-GH96G and NNX09AK31G. Work of C. V. and W. C. M. was supported by the DFG cluster of excellence: Origin and Structure of the Universe. The RAMSES simulations were performed thanks to the HPC resources of CCRT under the allocations 2009-SAP2191 and 2010-GEN2192 made by GENCI, France. The authors are grateful to the anonymous referee for a prompt and constructive review. NR 107 TC 41 Z9 41 U1 2 U2 9 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD AUG 10 PY 2011 VL 737 IS 1 AR 13 DI 10.1088/0004-637X/737/1/13 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 800BM UT WOS:000293332200013 ER PT J AU Moses, JI Visscher, C Fortney, JJ Showman, AP Lewis, NK Griffith, CA Klippenstein, SJ Shabram, M Friedson, AJ Marley, MS Freedman, RS AF Moses, Julianne I. Visscher, C. Fortney, J. J. Showman, A. P. Lewis, N. K. Griffith, C. A. Klippenstein, S. J. Shabram, M. Friedson, A. J. Marley, M. S. Freedman, R. S. TI DISEQUILIBRIUM CARBON, OXYGEN, AND NITROGEN CHEMISTRY IN THE ATMOSPHERES OF HD 189733b AND HD 209458b SO ASTROPHYSICAL JOURNAL LA English DT Article DE planetary systems; planets and satellites: atmospheres; planets and satellites: composition; planets and satellites: individual (HD 189733b, HD 209458b); stars: individual (HD 189733, HD 209458) ID EXTRASOLAR GIANT PLANETS; INFRARED-EMISSION-SPECTRUM; HOT JUPITER ATMOSPHERES; HUBBLE-SPACE-TELESCOPE; EVALUATED KINETIC-DATA; TITANS UPPER-ATMOSPHERE; DWARF GLIESE 229B; NEPTUNE GJ 436B; BROWN DWARFS; MU-M AB We have developed a one-dimensional photochemical and thermochemical kinetics and diffusion model to study the effects of disequilibrium chemistry on the atmospheric composition of "hot-Jupiter" exoplanets. Here we investigate the coupled chemistry of neutral carbon, hydrogen, oxygen, and nitrogen species on HD 189733b and HD 209458b and we compare the model results with existing transit and eclipse observations. We find that the vertical profiles of molecular constituents are significantly affected by transport-induced quenching and photochemistry, particularly on the cooler HD 189733b; however, the warmer stratospheric temperatures on HD 209458b help maintain thermochemical equilibrium and reduce the effects of disequilibrium chemistry. For both planets, the methane and ammonia mole fractions are found to be enhanced over their equilibrium values at pressures of a few bar to less than an mbar due to transport-induced quenching, but CH4 and NH3 are photochemically removed at higher altitudes. Disequilibrium chemistry also enhances atomic species, unsaturated hydrocarbons (particularly C2H2), some nitriles (particularly HCN), and radicals like OH, CH3, and NH2. In contrast, CO, H2O, N-2, and CO2 more closely follow their equilibrium profiles, except at pressures less than or similar to 1 mu bar, where CO, H2O, and N-2 are photochemically destroyed and CO2 is produced before its eventual high-altitude destruction. The enhanced abundances of CH4, NH3, and HCN are expected to affect the spectral signatures and thermal profiles of HD 189733b and other relatively cool, transiting exoplanets. We examine the sensitivity of our results to the assumed temperature structure and eddy diffusion coefficients and discuss further observational consequences of these models. C1 [Moses, Julianne I.] Space Sci Inst, Boulder, CO 80301 USA. [Visscher, C.] Lunar & Planetary Inst, Houston, TX 77058 USA. [Fortney, J. J.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA. [Showman, A. P.; Lewis, N. K.; Griffith, C. A.] Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA. [Showman, A. P.; Lewis, N. K.; Griffith, C. A.] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA. [Klippenstein, S. J.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Shabram, M.] Univ Florida, Dept Astron, Gainesville, FL 32611 USA. [Friedson, A. J.] CALTECH, Jet Prop Lab, Div Earth & Space Sci, Pasadena, CA 91109 USA. [Marley, M. S.; Freedman, R. S.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA. RP Moses, JI (reprint author), Space Sci Inst, 4750 Walnut St,Suite 205, Boulder, CO 80301 USA. EM jmoses@spacescience.org RI Moses, Julianne/I-2151-2013; Marley, Mark/I-4704-2013; OI Moses, Julianne/0000-0002-8837-0035; Marley, Mark/0000-0002-5251-2943; Klippenstein, Stephen/0000-0001-6297-9187; Fortney, Jonathan/0000-0002-9843-4354 FU NASA [NNX10AF65G, NNX10AF64G, NNH09AK24I, NNX11AD64G]; Lunar and Planetary Institute, USRA (NASA) [NCC5-679] FX We thank A. Garcia Munoz for sending us his HD 209458b thermospheric model results, and Michael Line, Kevin Zahnle, and Roger Yelle for interesting chemistry discussions. We gratefully acknowledge support from the NASA Planetary Atmospheres Program grant numbers NNX10AF65G (J.M.), NNX10AF64G (C. V.), NNH09AK24I (S. K.), and now NNX11AD64G. Support for C. V. also provided by the Lunar and Planetary Institute, USRA (NASA Cooperative Agreement NCC5-679). LPI Contribution Number 1622. NR 207 TC 118 Z9 119 U1 8 U2 38 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD AUG 10 PY 2011 VL 737 IS 1 AR 15 DI 10.1088/0004-637X/737/1/15 PG 37 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 800BM UT WOS:000293332200015 ER PT J AU Schneider, MD Cole, S Frenk, CS Szapudi, I AF Schneider, Michael D. Cole, Shaun Frenk, Carlos S. Szapudi, Istvan TI FAST GENERATION OF ENSEMBLES OF COSMOLOGICAL N-BODY SIMULATIONS VIA MODE RESAMPLING SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmological parameters; large-scale structure of universe; methods: numerical ID MATTER POWER SPECTRUM; WEAK LENSING SURVEYS; COVARIANCE-MATRIX; DARK-MATTER; HALO-MODEL; INFORMATION-CONTENT; GALAXY SURVEYS; STATISTICS; PARAMETERS; EMULATION AB We present an algorithm for quickly generating multiple realizations of N-body simulations to be used, for example, for cosmological parameter estimation from surveys of large-scale structure. Our algorithm uses a new method to resample the large-scale (Gaussian-distributed) Fourier modes in a periodic N-body simulation box in a manner that properly accounts for the nonlinear mode coupling between large and small scales. We find that our method for adding new large-scale mode realizations recovers the nonlinear power spectrum to sub-percent accuracy on scales larger than about half the Nyquist frequency of the simulation box. Using 20 N-body simulations, we obtain a power spectrum covariance matrix estimate that matches the estimator from Takahashi et al. (from 5000 simulations) with <20% errors in all matrix elements. Comparing the rates of convergence, we determine that our algorithm requires similar to 8 times fewer simulations to achieve a given error tolerance in estimates of the power spectrum covariance matrix. The degree of success of our algorithm indicates that we understand the main physical processes that give rise to the correlations in the matter power spectrum. Namely, the large-scale Fourier modes modulate both the degree of structure growth through the variation in the effective local matter density and also the spatial frequency of small-scale perturbations through large-scale displacements. We expect our algorithm to be useful for noise modeling when constraining cosmological parameters from weak lensing (cosmic shear) and galaxy surveys, rescaling summary statistics of N-body simulations for new cosmological parameter values, and any applications where the influence of Fourier modes larger than the simulation size must be accounted for. C1 [Schneider, Michael D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Schneider, Michael D.; Cole, Shaun; Frenk, Carlos S.] Univ Durham, Dept Phys, Inst Computat Cosmol, Durham DH1 3LE, England. [Szapudi, Istvan] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA. RP Schneider, MD (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM schneider42@llnl.gov FU Leverhulme Research Fellowship; STFC; BIS; Durham University; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX We thank Adrian Jenkins for extensive technical advice on GADGET-2 and setup of initial conditions, David Weinberg for pointing us to his earlier related work, Alex Szalay for explanations of the growth of correlations in the Fourier phases of the density field, Yanchuan Cai for advice on applying perturbation theory to (an ultimately failed attempt to) add large-scale modes to our simulations, and Mark Neyrinck, Bhuvnesh Jain, and Ravi Sheth for useful conversations. S. M. C. acknowledges the support of a Leverhulme Research Fellowship. Some of the calculations for this paper were performed on the ICC Cosmology Machine, which is part of the DiRAC Facility jointly funded by STFC, the Large Facilities Capital Fund of BIS, and Durham University. Part of this work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 30 TC 21 Z9 21 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 10 PY 2011 VL 737 IS 1 AR 11 DI 10.1088/0004-637X/737/1/11 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 800BM UT WOS:000293332200011 ER PT J AU Shoemaker, DP Llobet, A Tachibana, M Seshadri, R AF Shoemaker, Daniel P. Llobet, Anna Tachibana, Makoto Seshadri, Ram TI Reverse Monte Carlo neutron scattering study of the 'ordered-ice' oxide pyrochlore Pb2Ru2O6.5 SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID ELECTRON LOCALIZATION; CRYSTAL-STRUCTURE; SPIN ICE; DIFFRACTION; ENTROPY; HEAT; DISORDER; SOLIDS; PHASE; PAIRS AB We employ high-resolution total neutron scattering in conjunction with reverse Monte Carlo simulations to examine, in a detailed and unbiased manner, the crystal structure of the vacancy-ordered oxide pyrochlore Pb2Ru2O6O'(0.5) in light of its structural analogy with proton ordering in the structures of ice. We find that the vacancy and the O' ion are completely ordered, and that the average structure in the F (4) over bar 3m space group describes the vacancy ordering precisely. We complement these results with an examination of the Pb2+ lone pair network using density functional electronic structure calculations, and a comparison of the low-temperature lattice-only heat capacity of Pb2Ru2O6O'(0.5) with that of other related pyrochlores. C1 [Shoemaker, Daniel P.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Llobet, Anna] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Tachibana, Makoto] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan. [Seshadri, Ram] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. [Seshadri, Ram] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA. RP Shoemaker, DP (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM dshoemaker@anl.gov; allobet@lanl.gov; TACHIBANA.Makoto@nims.go.jp; seshadri@mrl.ucsb.edu RI Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012; Seshadri, Ram/C-4205-2013; TACHIBANA, Makoto/H-2794-2011 OI Seshadri, Ram/0000-0001-5858-4027; FU UCSB-LANL Institute for Multiscale Materials Studies; National Science Foundation [DMR 0449354, DMR05-20415]; US DOE, Office of Science [DE-AC02-06CH11357]; DOE Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396] FX We thank Joan Siewenie for assistance with data collection at NPDF. DPS and RS gratefully acknowledge support from the UCSB-LANL Institute for Multiscale Materials Studies, and from the National Science Foundation (DMR 0449354). DPS additionally acknowledges work at Argonne National Laboratory supported by the US DOE, Office of Science, under Contract DE-AC02-06CH11357. This work made use of MRL Central Facilities, supported by the MRSEC Program of the NSF (DMR05-20415), a member of the NSF-funded Materials Research Facilities Network (www.mrfn.org). NPDF at the Lujan Center at Los Alamos Neutron Science Center is funded by the DOE Office of Basic Energy Sciences and operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396. RMC simulations were performed on the Hewlett Packard QSR cluster at the CNSI-MRL High Performance Computing Facility. NR 35 TC 4 Z9 4 U1 0 U2 11 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD AUG 10 PY 2011 VL 23 IS 31 AR 315404 DI 10.1088/0953-8984/23/31/315404 PG 6 WC Physics, Condensed Matter SC Physics GA 795WL UT WOS:000293008900009 PM 21778563 ER PT J AU Rondinelli, JM Spaldin, NA AF Rondinelli, James M. Spaldin, Nicola A. TI Structure and Properties of Functional Oxide Thin Films: Insights From Electronic-Structure Calculations SO ADVANCED MATERIALS LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; STRAIN/ORDER-PARAMETER RELATIONSHIPS; STRONGLY CORRELATED SYSTEMS; NEUTRON POWDER DIFFRACTION; GROUP-THEORETICAL ANALYSIS; JAHN-TELLER TRANSITIONS; PHASE-TRANSITIONS; MATERIALS SCIENCE; RHOMBOHEDRAL PEROVSKITES; TRANSPORT-PROPERTIES AB The confluence of state-of-the-art electronic-structure computations and modern synthetic materials growth techniques is proving indispensable in the search for and discovery of new functionalities in oxide thin films and heterostructures. Here, we review the recent contributions of electronic-structure calculations to predicting, understanding, and discovering new materials physics in thin-film perovskite oxides. We show that such calculations can accurately predict both structure and properties in advance of film synthesis, thereby guiding the search for materials combinations with specific targeted functionalities. In addition, because they can isolate and decouple the effects of various parameters which unavoidably occur simultaneously in an experiment-such as epitaxial strain, interfacial chemistry and defect profiles-they are able to provide new fundamental knowledge about the underlying physics. We conclude by outlining the limitations of current computational techniques, as well as some important open questions that we hope will motivate further methodological developments in the field. C1 [Rondinelli, James M.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Spaldin, Nicola A.] ETH, CH-8093 Zurich, Switzerland. RP Rondinelli, JM (reprint author), Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA. EM jrondinelli@coe.drexel.edu RI Spaldin, Nicola/A-1017-2010; Rondinelli, James/A-2071-2009 OI Spaldin, Nicola/0000-0003-0709-9499; Rondinelli, James/0000-0003-0508-2175 FU U.S. DOE, Office of Science [DE-AC02-06CH11357]; ETH Zurich FX This research was supported by the U.S. DOE, Office of Science, under Contract No. DE-AC02-06CH11357 (JMR) and the ETH Zurich (NAS). NR 187 TC 146 Z9 146 U1 15 U2 197 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 0935-9648 EI 1521-4095 J9 ADV MATER JI Adv. Mater. PD AUG 9 PY 2011 VL 23 IS 30 BP 3363 EP 3381 DI 10.1002/adma.201101152 PG 19 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 817DW UT WOS:000294652500002 PM 21748811 ER PT J AU Yi, HT Choi, T Choi, SG Oh, YS Cheong, SW AF Yi, H. T. Choi, T. Choi, S. G. Oh, Y. S. Cheong, S. -W. TI Mechanism of the Switchable Photovoltaic Effect in Ferroelectric BiFeO3 SO ADVANCED MATERIALS LA English DT Article ID OPTICAL RECTIFICATION; POLARIZATION; SURFACES; FILMS AB Directions of rectification and photocurrent in a ferroelectric BiFeO3 crystal can be switched by applying high-voltage pulses at room temperature. The switching is highly repeatable though cycling and also stable with time. This switchable photocurrent and diode effect results from the combination of polarization flipping and electromigration of oxygen vacancies. C1 [Yi, H. T.; Oh, Y. S.; Cheong, S. -W.] Rutgers State Univ, Dept Phys & Astron, Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA. [Choi, T.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Choi, S. G.] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA. RP Cheong, SW (reprint author), Rutgers State Univ, Dept Phys & Astron, Rutgers Ctr Emergent Mat, POB 849, Piscataway, NJ 08854 USA. EM sangc@physics.rutgers.edu RI Choi, Taekjib/H-8791-2012; Yi, Hee Taek/F-6399-2010; Oh, Yoon Seok/A-1071-2011; Choi, Sukgeun/J-2345-2014 OI Choi, Taekjib/0000-0001-6912-3322; Oh, Yoon Seok/0000-0001-8233-1898; FU U.S. National Science Foundation [NSF-DMR-1104484]; U.S. Department of Energy [DE-AC36-08GO28308] FX The authors would like to express their gratitude to Professor Paul Panayotatos (Electrical and Computer Engineering Department, Rutgers University) for useful discussion. This study was supported by the U.S. National Science Foundation under Grant No. NSF-DMR-1104484. The work done at NREL was supported by the U.S. Department of Energy under contract No. DE-AC36-08GO28308. NR 27 TC 125 Z9 129 U1 17 U2 191 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0935-9648 J9 ADV MATER JI Adv. Mater. PD AUG 9 PY 2011 VL 23 IS 30 BP 3403 EP + DI 10.1002/adma.201100805 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 817DW UT WOS:000294652500007 PM 21681986 ER PT J AU Liu, HS Bi, ZH Sun, XG Unocic, RR Paranthaman, MP Dai, S Brown, GM AF Liu, Hansan Bi, Zhonghe Sun, Xiao-Guang Unocic, Raymond R. Paranthaman, M. Parans Dai, Sheng Brown, Gilbert M. TI Mesoporous TiO2-B Microspheres with Superior Rate Performance for Lithium Ion Batteries SO ADVANCED MATERIALS LA English DT Article ID TIO2(B) NANOPARTICLES; RUTILE TIO2; ANATASE; NANOTUBES; INSERTION; NANOSTRUCTURES; INTERCALATION; NANOWIRES; TITANATES AB Mesoporous TiO2-B microspheres with a favorable material architecture are designed and synthesized for highpower lithium ion batteries. This material, which combines the advantages of fast lithium transport with a pseudocapacitive mechanism, adequate electrode-electrolyte contact, and compact particle packing in the electrode layer, shows superior high-rate charge discharge capability and longtime cyclability for lithium ion batteries. C1 [Liu, Hansan; Bi, Zhonghe; Sun, Xiao-Guang; Paranthaman, M. Parans; Dai, Sheng; Brown, Gilbert M.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Unocic, Raymond R.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Liu, HS (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM liuh@ornl.gov RI Bi, zhonghe/D-7377-2012; Paranthaman, Mariappan/N-3866-2015; Dai, Sheng/K-8411-2015; OI Paranthaman, Mariappan/0000-0003-3009-8531; Dai, Sheng/0000-0002-8046-3931; Unocic, Raymond/0000-0002-1777-8228 FU Oak Ridge National Laboratory; Oak Ridge National Laboratory's SHaRE User Facility; Office of Basic Energy Sciences, U.S. Department of Energy; U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division FX Research Sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. Department of Energy. Research supported by Oak Ridge National Laboratory's SHaRE User Facility, which is sponsored by the Office of Basic Energy Sciences, U.S. Department of Energy. X. S., R. R. U., M. P. P. and S. D. were supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. Dr. Craig A. Bridges in Chemical Science Division of ORNL is appreciated for his technical assistance with XRD experiments and refinement analysis. NR 38 TC 201 Z9 202 U1 25 U2 262 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0935-9648 J9 ADV MATER JI Adv. Mater. PD AUG 9 PY 2011 VL 23 IS 30 BP 3450 EP + DI 10.1002/adma.201100599 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 817DW UT WOS:000294652500016 PM 21721051 ER PT J AU Xiao, J Wang, XJ Yang, XQ Xun, SD Liu, G Koech, PK Liu, J Lemmon, JP AF Xiao, Jie Wang, Xiaojian Yang, Xiao-Qing Xun, Shidi Liu, Gao Koech, Phillip K. Liu, Jun Lemmon, John P. TI Electrochemically Induced High Capacity Displacement Reaction of PEO/MoS2/Graphene Nanocomposites with Lithium SO ADVANCED FUNCTIONAL MATERIALS LA English DT Article ID LI-ION BATTERIES; MOLYBDENUM-DISULFIDE; CATHODE MATERIALS; ENERGY-STORAGE; MOS2; ANODE; SILICON; OXIDE; PERFORMANCE; NANOTUBES AB Nanocomposites comprised of poly(ethylene oxide), molybdenum disulfide, and graphene were prepared by the hydrolysis of lithiated molybdenum disulfide in an aqueous solution of PEO and graphene. Structural analysis by XRD shows the nanocomposites are disordered with an expansion of similar to 6 angstrom in the interlayer spacing. During the first discharge, the nanocomposites electrochemically dissociates irreversibly into Li2S and Mo and are able to continously cycle as Li2S +Mo/Li-x <-> S + Mo + Lix+2 as shown by XRD of the discharged electrodes at different depth of discharge (DOD), cyclic voltammetry (CV), and high resolution TEM. A significant increase of the reversible capacity is found in as-prepared MoS2/PEO/graphene composite. The results suggest a new electro-interaction between lithium and molybdenum metal that only occurs in the nanoregime and is enhanced by PEO. The addition of 2 wt% of graphene to the nanocomposites greatly increases the rate capability with rates as high as 10000mA g(-1) yielding > 250mAh g(-1) and recovering to > 600 mAhr g(-1) at 50mA g(-1). C1 [Xiao, Jie; Koech, Phillip K.; Liu, Jun; Lemmon, John P.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Wang, Xiaojian; Yang, Xiao-Qing] Brookhaven Natl Lab, Upton, NY 11973 USA. [Xun, Shidi; Liu, Gao] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Xiao, J (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM john.lemmon@pnl.gov RI xun, shidi/D-5679-2012 FU Pacific Northwest National Laboratory; U.S. Department of Energy; Office of Vehicle Technologies [DEAC02-98CH10886]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001294] FX The authors thank Dr. Libor Kovarik of the Environmental Molecular Sciences Laboratory (EMSL) for the TEM characterization. Prof. I. A. Aksay of Princeton University and Vorbeck Inc. have provided graphene source for this work. We gratefully acknowledge the financial support provided by the Laboratory Directed Research and Development Program at Pacific Northwest National Laboratory, and extend our gratitude to Professor Michael Lerner at Oregon State University for his insightful comments and discussion. The work done at Brookhaven National Lab. was supported by the U.S. Department of Energy, the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, under the Vehicle Technology Program, under Contract Number DEAC02-98CH10886. X.W. is supported by the Northeastern Center for Chemical Energy Storage, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract Number DE-SC0001294. NR 33 TC 263 Z9 264 U1 47 U2 398 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 1616-301X J9 ADV FUNCT MATER JI Adv. Funct. Mater. PD AUG 9 PY 2011 VL 21 IS 15 BP 2840 EP 2846 DI 10.1002/adfm.201002752 PG 7 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 810XY UT WOS:000294164900003 ER PT J AU Whitney, JC Hay, ID Li, CH Eckford, PDW Robinson, H Amaya, MF Wood, LF Ohman, DE Bear, CE Rehm, BH Howell, PL AF Whitney, John C. Hay, Iain D. Li, Canhui Eckford, Paul D. W. Robinson, Howard Amaya, Maria F. Wood, Lynn F. Ohman, Dennis E. Bear, Christine E. Rehm, Bernd H. Howell, P. Lynne TI Structural basis for alginate secretion across the bacterial outer membrane SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE biofilm; exopolysaccharide secretion; porin; virulence factor; uronic acids ID PSEUDOMONAS-AERUGINOSA; ESCHERICHIA-COLI; CYSTIC-FIBROSIS; PROTEIN; BIOSYNTHESIS; PORINS; ALG44; POLYMERIZATION; LOCALIZATION; RESOLUTION AB Pseudomonas aeruginosa is the predominant pathogen associated with chronic lung infection among cystic fibrosis patients. During colonization of the lung, P. aeruginosa converts to a mucoid phenotype characterized by the overproduction of the exopolysaccharide alginate. Secretion of newly synthesized alginate across the outer membrane is believed to occur through the outer membrane protein AlgE. Here we report the 2.3 angstrom crystal structure of AlgE, which reveals a monomeric 18-stranded beta-barrel characterized by a highly electropositive pore constriction formed by an arginine-rich conduit that likely acts as a selectivity filter for the negatively charged alginate polymer. Interestingly, the pore constriction is occluded on either side by extracellular loop L2 and an unusually long periplasmic loop, T8. In halide efflux assays, deletion of loop T8 (Delta T8-AlgE) resulted in a threefold increase in anion flux compared to the wild-type or Delta L2-AlgE supporting the idea that AlgE forms a transport pathway through the membrane and suggesting that transport is regulated by T8. This model is further supported by in vivo experiments showing that complementation of an algE deletion mutant with Delta T8-AlgE impairs alginate production. Taken together, these studies support a mechanism for exopolysaccharide export across the outer membrane that is distinct from the Wza-mediated translocation observed in canonical capsular polysaccharide export systems. C1 [Whitney, John C.; Li, Canhui; Eckford, Paul D. W.; Amaya, Maria F.; Bear, Christine E.; Howell, P. Lynne] Hosp Sick Children, Toronto, ON M5G 1X8, Canada. [Whitney, John C.; Howell, P. Lynne] Univ Toronto, Dept Biochem, Toronto, ON M5S 1A8, Canada. [Hay, Iain D.; Rehm, Bernd H.] Massey Univ, Inst Mol Biosci, N Palmerston, New Zealand. [Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Wood, Lynn F.; Ohman, Dennis E.] Virginia Commonwealth Univ, Dept Microbiol & Immunol, Med Ctr, McGuire Vet Affairs Med Ctr, Richmond, VA 23298 USA. [Bear, Christine E.] Univ Toronto, Dept Physiol, Toronto, ON M5S 1A8, Canada. RP Howell, PL (reprint author), Hosp Sick Children, 555 Univ Ave, Toronto, ON M5G 1X8, Canada. EM howell@sickkids.ca RI Hay, Iain/I-2525-2014 OI Hay, Iain/0000-0001-8797-6038 FU Canadian Institutes of Health Research (CIHR) [13337, 97954]; Canadian Cystic Fibrosis Foundation (CCFF); Public Health Service [AI-19146]; National Institutes of Allergy and Infectious Disease; CF Foundation; Department of Veterans Affairs [I01BX000477]; Deutsche Forschungsgemeinschaft [Re 1097/6-1]; Institute of Molecular BioSciences at Massey University; Canada Research Chair; National Science and Engineering Research Council of Canada (NSERC); CCFF; Ontario Graduate Scholarship Program; Ontario Student Opportunities Trust; The Hospital for Sick Children Foundation; Massey University; Department of Energy; National Institutes of Health (NIH) National Center for Research Resources FX The authors thank J. Weadge, L. Riley, F. Wolfram, Y. Lobsanov, L. Burrows, G.D. Smith, G. Prive, and T. Moreas for helpful discussions and P. Yip for technical assistance. This work was supported by the following grants: Canadian Institutes of Health Research (CIHR) (to P.L.H.) (number 13337) and C.E.B. (number 97954); Canadian Cystic Fibrosis Foundation (CCFF) (to C.E.B.); Public Health Service (AI-19146), National Institutes of Allergy and Infectious Disease, CF Foundation and Department of Veterans Affairs (Merit Award I01BX000477) (to D.E.O.); and Deutsche Forschungsgemeinschaft (Re 1097/6-1) and the Institute of Molecular BioSciences at Massey University (to B.H.R.) P.L.H. is the recipient of a Canada Research Chair; J.C.W. has been supported by graduate scholarships from the National Science and Engineering Research Council of Canada (NSERC), CCFF, the Ontario Graduate Scholarship Program, the Ontario Student Opportunities Trust Fund, and The Hospital for Sick Children Foundation Student Scholarship Program. I.D.H. is funded by a Massey University doctoral scholarship. P.D.W.E. is supported by a fellowship from the CCFF. Beam line X29 at NSLS is supported by the Department of Energy and the National Institutes of Health (NIH) National Center for Research Resources. NR 45 TC 34 Z9 34 U1 1 U2 16 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD AUG 9 PY 2011 VL 108 IS 32 BP 13083 EP 13088 DI 10.1073/pnas.1104984108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 804YK UT WOS:000293691400030 PM 21778407 ER PT J AU Wohlbach, DJ Kuo, A Sato, TK Potts, KM Salamov, AA LaButti, KM Sun, H Clum, A Pangilinan, JL Lindquist, EA Lucas, S Lapidus, A Jin, MJ Gunawan, C Balan, V Dale, BE Jeffries, TW Zinkel, R Barry, KW Grigoriev, IV Gasch, AP AF Wohlbach, Dana J. Kuo, Alan Sato, Trey K. Potts, Katlyn M. Salamov, Asaf A. LaButti, Kurt M. Sun, Hui Clum, Alicia Pangilinan, Jasmyn L. Lindquist, Erika A. Lucas, Susan Lapidus, Alla Jin, Mingjie Gunawan, Christa Balan, Venkatesh Dale, Bruce E. Jeffries, Thomas W. Zinkel, Robert Barry, Kerrie W. Grigoriev, Igor V. Gasch, Audrey P. TI Comparative genomics of xylose-fermenting fungi for enhanced biofuel production SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE bioenergy; genome sequencing; transcriptomics ID SACCHAROMYCES-CEREVISIAE STRAINS; YEAST PICHIA-STIPITIS; CANDIDA-ALBICANS; CUG CODON; EXPRESSION; SEQUENCE; FERMENTATION; BEETLES; LEUCINE; PATHWAY AB Cellulosic biomass is an abundant and underused substrate for biofuel production. The inability of many microbes to metabolize the pentose sugars abundant within hemicellulose creates specific challenges for microbial biofuel production from cellulosic material. Although engineered strains of Saccharomyces cerevisiae can use the pentose xylose, the fermentative capacity pales in comparison with glucose, limiting the economic feasibility of industrial fermentations. To better understand xylose utilization for subsequent microbial engineering, we sequenced the genomes of two xylose-fermenting, beetle-associated fungi, Spathaspora passalidarum and Candida tenuis. To identify genes involved in xylose metabolism, we applied a comparative genomic approach across 14 Ascomycete genomes, mapping phenotypes and genotypes onto the fungal phylogeny, and measured genomic expression across five Hemiascomycete species with different xylose-consumption phenotypes. This approach implicated many genes and processes involved in xylose assimilation. Several of these genes significantly improved xylose utilization when engineered into S. cerevisiae, demonstrating the power of comparative methods in rapidly identifying genes for biomass conversion while reflecting on fungal ecology. C1 [Wohlbach, Dana J.; Potts, Katlyn M.; Gasch, Audrey P.] Univ Wisconsin, Dept Genet, Madison, WI 53706 USA. [Wohlbach, Dana J.; Sato, Trey K.; Jeffries, Thomas W.; Zinkel, Robert; Gasch, Audrey P.] Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA. [Kuo, Alan; Salamov, Asaf A.; LaButti, Kurt M.; Sun, Hui; Clum, Alicia; Pangilinan, Jasmyn L.; Lindquist, Erika A.; Lucas, Susan; Lapidus, Alla; Barry, Kerrie W.; Grigoriev, Igor V.] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA. [Jin, Mingjie; Gunawan, Christa; Balan, Venkatesh; Dale, Bruce E.] Michigan State Univ, Biomass Convers Res Lab, Dept Chem Engn & Mat Sci, Lansing, MI 48910 USA. [Jin, Mingjie; Gunawan, Christa; Balan, Venkatesh; Dale, Bruce E.] Michigan State Univ, Great Lakes Bioenergy Res Ctr, E Lansing, MI 48824 USA. RP Gasch, AP (reprint author), Univ Wisconsin, Dept Genet, Madison, WI 53706 USA. EM agasch@wisc.edu RI Jeffries, Thomas/I-8576-2012; Lapidus, Alla/I-4348-2013; Jin, Mingjie/I-4616-2012; OI Jeffries, Thomas/0000-0001-7408-4065; Lapidus, Alla/0000-0003-0427-8731; Jin, Mingjie/0000-0002-9493-305X FU US Department of Energy (DOE); DOE Great Lakes Bioenergy Research Center (DOE Biological and Environmental Research Office of Science) [DE-FC02-07ER64494]; National Library of Medicine [5T15LM007359]; National Science Foundation [0447887]; Office of Science of the US DOE [DE-AC02-05CH11231] FX We thank Meredith Blackwell, Aviv Regev, Dawn-Anne Thompson, and Cletus Kurtzman for strains; Yann Dufour for assistance in microarray design; Cecile Ane for bioinformatic and phylogenetics support; Alan Higbee and Gwen Bone for GC and HPLC analysis; Thomas Kuster for images of yeasts; and Rebecca Breuer and Ben Bice for technical assistance. This work was performed under the auspices of the US Department of Energy (DOE) and was funded in part by the DOE Great Lakes Bioenergy Research Center (DOE Biological and Environmental Research Office of Science Grant DE-FC02-07ER64494), National Library of Medicine Training Grant 5T15LM007359 (to D.J.W.), and National Science Foundation Career Award 0447887 (to A. P. G.). The work conducted by the US DOE Joint Genome Institute is supported by the Office of Science of the US DOE under Contract No. DE-AC02-05CH11231. NR 52 TC 62 Z9 65 U1 3 U2 36 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD AUG 9 PY 2011 VL 108 IS 32 BP 13212 EP 13217 DI 10.1073/pnas.1103039108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 804YK UT WOS:000293691400052 PM 21788494 ER PT J AU Chou, S Krasileva, KV Holton, JM Steinbrenner, AD Alber, T Staskawicz, BJ AF Chou, Seemay Krasileva, Ksenia V. Holton, James M. Steinbrenner, Adam D. Alber, Tom Staskawicz, Brian J. TI Hyaloperonospora arabidopsidis ATR1 effector is a repeat protein with distributed recognition surfaces SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE plant innate immunity; obligate biotroph ID C-TERMINAL DOMAIN; CRYSTAL-STRUCTURE; RESISTANCE PROTEIN; OOMYCETE EFFECTOR; III EFFECTOR; FLAX RUST; AVIRULENCE; SYSTEM; DETERMINANTS; COMPLEXES AB The in planta association of the Hyaloperonospora arabidopsidis effector ATR1 with the cognate Arabidopsis thaliana RPP1 immune receptor activates a disease-resistance signaling pathway that inhibits pathogen growth. To define the molecular events specifying effector recognition by RPP1, we determined the crystal structure of ATR1 and assayed in planta the effects of surface polymorphisms that are critical to activating plant immunity. ATR1 adopts an elongated, all-helical, two-domain, seahorse-like structure with an overall architecture unlike any previously described fold. Structural comparisons highlight a tandemly duplicated, five-helix motif in the C-terminal domain that creates a structural framework for rapid diversification. Identification and mapping of critical recognition sites suggest that ATR1 detection by the RPP1 resistance protein is mediated by several distinct protein surfaces that allow the effectors to escape recognition through diverse surface polymorphisms. ATR1 gain-of-recognition mutants demonstrate that multiple amino acid substitutions are necessary for recognition and that surface polymorphisms exert additive effects. These results suggest that ATR1 is a modular repeat protein belonging to an ancient family of oomycete effectors that rapidly evolves to escape host detection and adopt diverse virulence functions. C1 [Chou, Seemay; Alber, Tom] Univ Calif Berkeley, Dept Cell & Mol Biol, Berkeley, CA 94720 USA. [Krasileva, Ksenia V.; Steinbrenner, Adam D.; Staskawicz, Brian J.] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA. [Holton, James M.] Univ Calif San Francisco, Dept Biochem & Biophys, San Francisco, CA 94158 USA. [Holton, James M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Alber, T (reprint author), Univ Calif Berkeley, Dept Cell & Mol Biol, Berkeley, CA 94720 USA. EM tom@ucxray.berkeley.edu; stask@berkeley.edu FU National Science Foundation [NSF 2010 0726229] FX We thank Doug Barrick, Terry Lang, Sophien Kamoun, and Mark Banfield for helpful discussions; Bryan Thines and Frank Harmon (both of the Plant Gene Expression Center, U.S. Department of Agriculture) for providing Arabidopsis TOC1:LUC seed and guiding us in circadian clock experiments; Jane Tanamachi and George Meigs at Advanced Light Source Beamline 8.3.1 for help with X-ray data collection; Nathaniel Echols for help with model building of the ATR1 structure; and Sandra Goritschnig, Daniil Prigozhin, Megan Casey, and Christoph Grundner for helpful comments and support. This project was supported by National Science Foundation Grant NSF 2010 0726229. NR 38 TC 36 Z9 37 U1 3 U2 13 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD AUG 9 PY 2011 VL 108 IS 32 BP 13323 EP 13328 DI 10.1073/pnas.1109791108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 804YK UT WOS:000293691400071 PM 21788488 ER PT J AU Andersson, DA Uberuaga, BP Nerikar, PV Unal, C Stanek, CR AF Andersson, D. A. Uberuaga, B. P. Nerikar, P. V. Unal, C. Stanek, C. R. TI U and Xe transport in UO2 +/- x: Density functional theory calculations SO PHYSICAL REVIEW B LA English DT Article ID TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; URANIUM-DIOXIDE; POINT-DEFECTS; MOLECULAR-DYNAMICS; FISSION-PRODUCTS; MIXED OXIDES; BASIS-SET; UO2; DIFFUSION AB The detrimental effects of the fission gas Xe on the performance of oxide nuclear fuels are well known. However, less well known are the mechanisms that govern fission gas evolution. Here, to better understand bulk Xe behavior (diffusion mechanisms) in UO2 +/- x we calculate the relevant activation energies using density functional theory techniques. By analyzing a combination of Xe solution thermodynamics, migration barriers, and the interaction of dissolved Xe atoms with U, we demonstrate that Xe diffusion predominantly occurs via a vacancy-mediated mechanism. Since Xe transport is closely related to the diffusion of U vacancies, we have also studied the activation energy for this process. To best reproduce experimental data for the Xe and U activation energies, it is critical to consider the active charge-compensation mechanism for intrinsic defects in UO2 +/- x. Due to the high thermodynamic cost of reducing U4+ ions, any defect formation occurring at a fixed composition, i.e., no change in UO2 +/- x stoichiometry, always avoids such reactions, which, for example, implies that the ground-state configuration of an O Frenkel pair in UO2 does not involve any explicit local reduction (oxidation) of U ions at the O vacancy (interstitial). C1 [Andersson, D. A.; Uberuaga, B. P.; Nerikar, P. V.; Stanek, C. R.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Unal, C.] Los Alamos Natl Lab, Decis Applicat Div, Los Alamos, NM 87545 USA. RP Andersson, DA (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RI Albe, Karsten/F-1139-2011 FU DOE Nuclear Energy Fuel Cycle Research and Development (FCRD) Campaign; Nuclear Energy Advanced Modeling and Simulation (NEAMS) Program; Fuels Integrated Performance and Safety Code (IPSC) project [LA0915090108]; National Nuclear Security Administration of the US DOE [DE-AC52-06NA25396] FX Work at Los Alamos National Laboratory was funded by DOE Nuclear Energy Fuel Cycle Research and Development (FCRD) Campaign, Nuclear Energy Advanced Modeling and Simulation (NEAMS) Program, Fuels Integrated Performance and Safety Code (IPSC) project under the AFCI Modeling and Simulation work package No. LA0915090108. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US DOE under Contract No. DE-AC52-06NA25396. NR 70 TC 64 Z9 64 U1 6 U2 26 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 9 PY 2011 VL 84 IS 5 AR 054105 DI 10.1103/PhysRevB.84.054105 PG 12 WC Physics, Condensed Matter SC Physics GA 805BU UT WOS:000293702000003 ER PT J AU Bajdich, M Kent, PRC Kim, J Reboredo, FA AF Bajdich, Michal Kent, P. R. C. Kim, Jeongnim Reboredo, Fernando A. TI Simple impurity embedded in a spherical jellium: Approximations of density functional theory compared to quantum Monte Carlo benchmarks SO PHYSICAL REVIEW B LA English DT Article ID PAIR CORRELATION-FUNCTIONS; SIMPLE METAL-CLUSTERS; ELECTRON-GAS; STOCHASTIC METHOD; GROUND-STATE; EXCHANGE; PSEUDOPOTENTIALS; EXCITATIONS; MOLECULES; SYSTEMS AB We study the electronic structure of a spherical jellium in the presence of a central Gaussian impurity. We test how well the resulting inhomogeneity effects beyond spherical jellium are reproduced by several approximations of density functional theory (DFT). Four rungs of Perdew's ladder of DFT functionals, namely, local density approximation, generalized gradient approximation (GGA), meta-GGA, and orbital-dependent hybrid functionals are compared against our quantum Monte Carlo (QMC) benchmarks. We identify several distinct transitions in the ground state of the system as the electronic occupation changes between delocalized and localized states. We examine the parameter space of realistic densities (1 <= r(s) <= 5) and moderate depths of the Gaussian impurity (Z < 7). The selected 18-electron system (with closed-shell ground state) presents 1d -> 2s transitions, while the 30-electron system (with open-shell ground state) exhibits 1f -> 2p transitions. For the former system, the accuracy for the transitions is clearly improving with increasing sophistication of functionals with meta-GGA and hybrid functionals having only small deviations from QMC. However, for the latter system, we find much larger differences for the underlying transitions between our pool of DFT functionals and QMC. We attribute these failures to an insufficiently accurate treatment of exchange by these functionals. Additionally, we amplify the inhomogeneity effects by creating the system with spherical shell, which leads to even larger errors in DFT approximations. C1 [Bajdich, Michal; Reboredo, Fernando A.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Kent, P. R. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Kim, Jeongnim] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA. RP Bajdich, M (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RI Kent, Paul/A-6756-2008 OI Kent, Paul/0000-0001-5539-4017 FU US DOE Office of Science [DE-AC02-05CH11231 (NERSC), DE-AC05-00OR22725 (NCCS)]; US DOE BES Divisions of Materials Sciences & Engineering and Scientific User Facilities (PRCK); ORNL FX The authors thank M. Dane, M. Eisenbach, D. M. Nicholson, and G. Malcom Stocks for their contributions at the early stages of this project and acknowledge V. R. Cooper's careful reading of the manuscript. M. B. would also like to thank X. Zhuang for access to his LS eigenfunction program. This research used computer resources supported by the US DOE Office of Science under Contracts No. DE-AC02-05CH11231 (NERSC) and No. DE-AC05-00OR22725 (NCCS). Research was sponsored by US DOE BES Divisions of Materials Sciences & Engineering (F.A.R.) and Scientific User Facilities (PRCK), and the ORNL LDRD program (M.B.). NR 57 TC 0 Z9 0 U1 1 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 9 PY 2011 VL 84 IS 7 AR 075131 DI 10.1103/PhysRevB.84.075131 PG 8 WC Physics, Condensed Matter SC Physics GA 805CA UT WOS:000293702800006 ER PT J AU Ganeshan, S Kulkarni, M Durst, AC AF Ganeshan, Sriram Kulkarni, Manas Durst, Adam C. TI Quasiparticle scattering from vortices in d-wave superconductors. II. Berry phase contribution SO PHYSICAL REVIEW B LA English DT Article ID DIRAC-EQUATION; MIXED-STATE; VORTEX; QUANTIZATION; SEPARATION; VARIABLES; SPECTRUM AB In the mixed state of a d-wave superconductor, Bogoliubov quasiparticles are scattered from magnetic vortices via a combination of two effects: Aharonov-Bohm scattering due to the Berry phase acquired by a quasiparticle upon circling a vortex, and effective potential scattering due to the superflow swirling about the vortices. In this paper, we consider the Berry phase contribution in the absence of superflow, which results in branch cuts between neighboring vortices across which the quasiparticle wave function changes sign. Here, the simplest problem that captures the physics is that of scattering from a single finite branch cut that stretches between two vortices. Elliptical coordinates are natural for this two-center problem, and we proceed by separating the massless Dirac equation in elliptical coordinates. The separated equations take the form of the Whittaker-Hill equations, which we solve to obtain radial and angular eigenfunctions. With these eigenfunctions in hand, we construct the scattering cross section via partial wave analysis. We discuss the scattering effect of Berry phase in the absence of superflow, having considered the superflow effect in the absence of Berry phase in a separate paper. We also provide qualitative comparison of transport cross sections for the Berry phase and the Superflow effects. The important issue of interference between the two effects is left to future work. C1 [Ganeshan, Sriram; Kulkarni, Manas; Durst, Adam C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kulkarni, Manas] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RP Ganeshan, S (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RI Ganeshan, Sriram/H-6547-2013 FU NSF [DMR-0605919, DMR-0906866]; DOE [DE-FG02-09ER16052] FX S.G. would like to especially thank Alfred S. Goldhaber and Carl Bender for their valuable discussions and comments. We would also like to thank Sasha Abanov, Patrick Lee, Zlatko Tesanovic, and Ashvin Vishwanath for very helpful discussions. This work was supported by the NSF under Grant No. DMR-0605919. S.G. was also supported by the DOE under Grant No. DE-FG02-09ER16052. M.K. was also supported by the NSF under Grant No. DMR-0906866. NR 36 TC 3 Z9 3 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 9 PY 2011 VL 84 IS 6 AR 064503 DI 10.1103/PhysRevB.84.064503 PG 19 WC Physics, Condensed Matter SC Physics GA 805BV UT WOS:000293702200003 ER PT J AU Jiang, Z Lee, DR Narayanan, S Wang, J Sinha, SK AF Jiang, Zhang Lee, Dong Ryeol Narayanan, Suresh Wang, Jin Sinha, Sunil K. TI Waveguide-enhanced grazing-incidence small-angle x-ray scattering of buried nanostructures in thin films SO PHYSICAL REVIEW B LA English DT Article ID HARD-SPHERE INTERACTIONS; DOMAIN BLOCK-COPOLYMERS; DIBLOCK COPOLYMERS; LAMELLAR STRUCTURES; GOLD NANOPARTICLES; NEUTRON-SCATTERING; ROUGH SURFACES; STANDING WAVES; LAYERS; DIFFRACTION AB X-ray standing waves generated by the interference of the scattered x rays from parallel surfaces of a thin film, the so-called waveguide effect, can be used to enhance or reduce the scatterings from certain depths of the film. Used in combination with grazing-incidence small-angle x-ray scattering, this resonance effect provides depth sensitivity to extract buried structures in thin films of polymer and polymer/nanoparticle nanocomposite, which are not readily accessible by most surface techniques, such as scanning probe microscopy. We developed a rigorous theory of the diffuse scattering in the framework of the distorted-wave Born approximation using a discretization method analogous to Parratt's recursive formalism. In such a case, the distortion of the electric field of the unperturbed state from the nanostructures of interest is considered in a self-consistent manner. This theory allows a quantitative determination of the buried nanostructures when the x-ray waveguide enhancement is present or the size of the nanostructures of interest is comparable to or larger than the spatial frequency of electric-field intensity modulation. A unique capability afforded by this theory is that a nanometer or even subnanometer spatial resolution can be achieved in the depth information of the buried nanostructures, along with the in-plane correlation of the structures. C1 [Jiang, Zhang; Lee, Dong Ryeol; Narayanan, Suresh; Wang, Jin] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Sinha, Sunil K.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. RP Jiang, Z (reprint author), Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM zjiang@aps.anl.gov; wangj@aps.anl.gov RI Jiang, Zhang/A-3297-2012 OI Jiang, Zhang/0000-0003-3503-8909 FU US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES) [DE-AC02-06CH11357]; DOE BES [DE-SC0003678 (ER46680)] FX This work and the use of the APS were supported by the US Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES), under Contract No. DE-AC02-06CH11357. S.K.S. acknowledges support from DOE BES Grant No. DE-SC0003678 (ER46680). We thank Tom Russell and Jinbo He at University of Massachusetts Amherst, Edward J. Kramer at University of California Santa Barbara, and Gila Stein at University of Houston for sharing the experiment GISAXS data used in Secs. IIIA and IIIB. NR 57 TC 27 Z9 27 U1 2 U2 32 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 9 PY 2011 VL 84 IS 7 AR 075440 DI 10.1103/PhysRevB.84.075440 PG 13 WC Physics, Condensed Matter SC Physics GA 805CA UT WOS:000293702800016 ER PT J AU Kulkarni, M Ganeshan, S Durst, AC AF Kulkarni, Manas Ganeshan, Sriram Durst, Adam C. TI Quasiparticle scattering from vortices in d-wave superconductors. I. Superflow contribution SO PHYSICAL REVIEW B LA English DT Article ID ENERGY-ELECTRON SCATTERING; DENSITY-OF-STATES; UNCONVENTIONAL SUPERCONDUCTORS; THERMAL-CONDUCTIVITY; POLAR MOLECULES; VORTEX STATE; MIXED-STATE; TRANSPORT; CUPRATE; LINE AB In the vortex state of a d-wave superconductor, massless Dirac quasiparticles are scattered from magnetic vortices via a combination of two basic mechanisms: effective potential scattering due to the superflow swirling about the vortices, and Aharonov-Bohm scattering due to the Berry phase acquired by a quasiparticle upon circling a vortex. In this paper, we study the superflow contribution by calculating the differential cross section for a quasiparticle scattering from the effective noncentral potential of a single vortex. We solve the massless Dirac equation in polar coordinates and obtain the cross section via a partial wave analysis. We also present a more transparent Born-limit calculation, and in this approximation we provide an analytic expression for the differential cross section. The Berry phase contribution to the quasiparticle scattering is considered in a separate paper. C1 [Kulkarni, Manas; Ganeshan, Sriram; Durst, Adam C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kulkarni, Manas] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA. RP Kulkarni, M (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RI Ganeshan, Sriram/H-6547-2013 FU NSF [DMR-0605919, DMR-0906866]; DOE [DE-FG02-09ER16052] FX We would all like to thank Sasha Abanov, Patrick Lee, Zlatko Tesanovic, and Ashvin Vishwanath for very helpful discussions. This work was supported by the NSF under Grant No. DMR-0605919. M.K. was also supported by the NSF under Grant No. DMR-0906866. S.G. was also supported by the DOE under Grant No. DE-FG02-09ER16052. NR 30 TC 2 Z9 2 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 9 PY 2011 VL 84 IS 6 AR 064502 DI 10.1103/PhysRevB.84.064502 PG 15 WC Physics, Condensed Matter SC Physics GA 805BV UT WOS:000293702200002 ER PT J AU Miller, N Haller, EE Koblmuller, G Gallinat, C Speck, JS Schaff, WJ Hawkridge, ME Yu, KM Ager, JW AF Miller, Nate Haller, Eugene E. Koblmueller, Gregor Gallinat, Chad Speck, James S. Schaff, William J. Hawkridge, Michael E. Yu, Kin Man Ager, Joel W., III TI Effect of charged dislocation scattering on electrical and electrothermal transport in n-type InN SO PHYSICAL REVIEW B LA English DT Article ID MOLECULAR-BEAM EPITAXY; THREADING DISLOCATIONS; WURTZITE INN; INDIUM NITRIDE; 0001 SAPPHIRE; BUFFER LAYER; GAN; MOBILITY; CONDUCTIVITY; MICROSCOPY AB Temperature-dependent thermopower and Hall-effect measurements, combined with model calculations including all of the relevant elastic-and inelastic-scattering mechanisms, are used to quantify the role of charged line defects on electron transport in n-type InN films grown by molecular-beam epitaxy. Films with electron concentrations between 4 x 10(17) and 5 x 10(19) cm(-3) were investigated. Charged point and line defect scattering produce qualitatively different temperature dependences of the thermopower and mobility, allowing their relative contribution to the scattering to be evaluated using charge neutrality at the measured electron concentration. Both charge state possibilities for the dislocations [positively charged (donors) or negatively charged (acceptors)], were considered. The 100-300 K temperature dependence of the mobility and the 200-320 K temperature dependence of the thermopower can be modeled well with either assumption. The dislocation density was independently measured by plan-view and cross-sectional transmission electron microscopy and corresponds well with the values obtained from transport modeling. C1 [Miller, Nate; Haller, Eugene E.; Hawkridge, Michael E.; Yu, Kin Man; Ager, Joel W., III] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Miller, Nate; Haller, Eugene E.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Koblmueller, Gregor] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany. [Koblmueller, Gregor] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany. [Gallinat, Chad; Speck, James S.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. [Schaff, William J.] Cornell Univ, Dept Elect & Comp Engn, Ithaca, NY 14853 USA. RP Miller, N (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM JWAger@lbl.gov RI Speck, James/H-5646-2011; Yu, Kin Man/J-1399-2012; OI Yu, Kin Man/0000-0003-1350-9642; Ager, Joel/0000-0001-9334-9751 FU Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the US Department of Energy [DE-AC02-05CH11231]; Department of Defense, Air Force Office of Scientific Research FX This work was performed within LBNL's Electronic Materials Program. Electron microscopy was performed at the National Center for Electron Microscopy. Both are supported by the Director, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the US Department of Energy under Contract Nos. DE-AC02-05CH11231. N.M. was supported by the National Defense Science and Engineering Graduate (NDSEG) program of the Department of Defense, Air Force Office of Scientific Research. NR 58 TC 31 Z9 32 U1 4 U2 23 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 9 PY 2011 VL 84 IS 7 AR 075315 DI 10.1103/PhysRevB.84.075315 PG 8 WC Physics, Condensed Matter SC Physics GA 805CA UT WOS:000293702800012 ER PT J AU Adare, A Afanasiev, S Aidala, C Ajitanand, NN Akiba, Y Al-Bataineh, H Alexander, J Aoki, K Aphecetche, L Aramaki, Y Asai, J Atomssa, ET Averbeck, R Awes, TC Azmoun, B Babintsev, V Bai, M Baksay, G Baksay, L Baldisseri, A Barish, KN Barnes, PD Bassalleck, B Basye, AT Bathe, S Batsouli, S Baublis, V Baumann, C Bazilevsky, A Belikov, S Belmont, R Bennett, R Berdnikov, A Berdnikov, Y Bickley, AA Boissevain, JG Bok, JS Borel, H Boyle, K Brooks, ML Buesching, H Bumazhnov, V Bunce, G Butsyk, S Camacho, CM Campbell, S Chang, BS Chang, WC Charvet, JL Chen, CH Chernichenko, S Chi, CY Chiu, M Choi, IJ Choudhury, RK Christiansen, P Chujo, T Chung, P Churyn, A Chvala, O Cianciolo, V Citron, Z Cole, BA Connors, M Constantin, P Csanad, M Csorgo, T Dahms, T Dairaku, S Danchev, I Das, K Datta, A David, G Denisov, A d'Enterria, D Deshpande, A Desmond, EJ Dietzsch, O Dion, A Donadelli, M Drapier, O Drees, A Drees, KA Dubey, AK Durham, JM Durum, A Dutta, D Dzhordzhadze, V Edwards, S Efremenko, YV Ellinghaus, F Engelmore, T Enokizono, A En'yo, H Esumi, S Eyser, KO Fadem, B Fields, DE Finger, M Finger, M Fleuret, F Fokin, SL Fraenkel, Z Frantz, JE Franz, A Frawley, AD Fujiwara, K Fukao, Y Fusayasu, T Garishvili, I Glenn, A Gong, H Gonin, M Gosset, J Goto, Y de Cassagnac, RG Grau, N Greene, SV Perdekamp, MG Gunji, T Gustafsson, HA Henni, AH Haggerty, JS Hahn, KI Hamagaki, H Hamblen, J Han, R Hanks, J Hartouni, EP Haruna, K Haslum, E Hayano, R He, X Heffner, M Hemmick, TK Hester, T Hill, JC Hohlmann, M Holzmann, W Homma, K Hong, B Horaguchi, T Hornback, D Huang, S Ichihara, T Ichimiya, R Ide, J Iinuma, H Ikeda, Y Imai, K Imrek, J Inaba, M Isenhower, D Ishihara, M Isobe, T Issah, M Isupov, A Ivanischev, D Jacak, BV Jia, J Jin, J Johnson, BM Joo, KS Jouan, D Jumper, DS Kajihara, F Kametani, S Kamihara, N Kamin, J Kang, JH Kapustinsky, J Karatsu, K Kawall, D Kawashima, M Kazantsev, AV Kempel, T Khanzadeev, A Kijima, KM Kikuchi, J Kim, BI Kim, DH Kim, DJ Kim, E Kim, EJ Kim, SH Kim, YJ Kinney, E Kiriluk, K Kiss, A Kistenev, E Klay, J Klein-Boesing, C Kochenda, L Komkov, B Konno, M Koster, J Kotchetkov, D Kozlov, A Kral, A Kravitz, A Kunde, GJ Kurita, K Kurosawa, M Kweon, MJ Kwon, Y Kyle, GS Lacey, R Lai, YS Lajoie, JG Layton, D Lebedev, A Lee, DM Lee, J Lee, K Lee, KB Lee, KS Lee, T Leitch, MJ Leite, MAL Leitner, E Lenzi, B Li, X Liebing, P Levy, LAL Liska, T Litvinenko, A Liu, H Liu, MX Love, B Luechtenborg, R Lynch, D Maguire, CF Makdisi, YI Malakhov, A Malik, MD Manko, VI Mannel, E Mao, Y Masek, L Masui, H Matathias, F McCumber, M McGaughey, PL Means, N Meredith, B Miake, Y Mignerey, AC Mikes, P Miki, K Milov, A Mishra, M Mitchell, JT Mohanty, AK Morino, Y Morreale, A Morrison, DP Moukhanova, TV Mukhopadhyay, D Murata, J Nagamiya, S Nagle, JL Naglis, M Nagy, MI Nakagawa, I Nakamiya, Y Nakamura, T Nakano, K Newby, J Nguyen, M Niita, T Nouicer, R Nyanin, AS O'Brien, E Oda, SX Ogilvie, CA Oka, M Okada, K Onuki, Y Oskarsson, A Ouchida, M Ozawa, K Pak, R Palounek, APT Pantuev, V Papavassiliou, V Park, IH Park, J Park, SK Park, WJ Pate, SF Pei, H Peng, JC Pereira, H Peresedov, V Peressounko, DY Pinkenburg, C Pisani, RP Proissl, M Purschke, ML Purwar, AK Qu, H Rak, J Rakotozafindrabe, A Ravinovich, I Read, KF Rembeczki, S Reygers, K Riabov, V Riabov, Y Richardson, E Roach, D Roche, G Rolnick, SD Rosati, M Rosen, CA Rosendahl, SSE Rosnet, P Rukoyatkin, P Ruzicka, P Rykov, VL Sahlmueller, B Saito, N Sakaguchi, T Sakai, S Sakashita, K Samsonov, V Sano, S Sato, T Sawada, S Sedgwick, K Seele, J Seidl, R Semenov, AY Semenov, V Seto, R Sharma, D Shein, I Shibata, TA Shigaki, K Shimomura, M Shoji, K Shukla, P Sickles, A Silva, CL Silvermyr, D Silvestre, C Sim, KS Singh, BK Singh, CP Singh, V Slunecka, M Soldatov, A Soltz, RA Sondheim, WE Sorensen, SP Sourikova, IV Sparks, NA Staley, F Stankus, PW Stenlund, E Stepanov, M Ster, A Stoll, SP Sugitate, T Suire, C Sukhanov, A Sziklai, J Takagui, EM Taketani, A Tanabe, R Tanaka, Y Tanida, K Tannenbaum, MJ Tarafdar, S Taranenko, A Tarjan, P Themann, H Thomas, TL Togawa, M Toia, A Tomasek, L Tomita, Y Torii, H Towell, RS Tram, VN Tserruya, I Tsuchimoto, Y Vale, C Valle, H van Hecke, HW Vazquez-Zambrano, E Veicht, A Velkovska, J Vertesi, R Vinogradov, AA Virius, M Vrba, V Vznuzdaev, E Wang, XR Watanabe, D Watanabe, K Watanabe, Y Wei, F Wei, R Wessels, J White, SN Winter, D Wood, JP Woody, CL Wright, RM Wysocki, M Xie, W Yamaguchi, YL Yamaura, K Yang, R Yanovich, A Ying, J Yokkaichi, S You, Z Young, GR Younus, I Yushmanov, IE Zajc, WA Zaudtke, O Zhang, C Zhou, S Zolin, L AF Adare, A. Afanasiev, S. Aidala, C. Ajitanand, N. N. Akiba, Y. Al-Bataineh, H. Alexander, J. Aoki, K. Aphecetche, L. Aramaki, Y. Asai, J. Atomssa, E. T. Averbeck, R. Awes, T. C. Azmoun, B. Babintsev, V. Bai, M. Baksay, G. Baksay, L. Baldisseri, A. Barish, K. N. Barnes, P. D. Bassalleck, B. Basye, A. T. Bathe, S. Batsouli, S. Baublis, V. Baumann, C. Bazilevsky, A. Belikov, S. Belmont, R. Bennett, R. Berdnikov, A. Berdnikov, Y. Bickley, A. A. Boissevain, J. G. Bok, J. S. Borel, H. Boyle, K. Brooks, M. L. Buesching, H. Bumazhnov, V. Bunce, G. Butsyk, S. Camacho, C. M. Campbell, S. Chang, B. S. Chang, W. C. Charvet, J. -L. Chen, C. -H. Chernichenko, S. Chi, C. Y. Chiu, M. Choi, I. J. Choudhury, R. K. Christiansen, P. Chujo, T. Chung, P. Churyn, A. Chvala, O. Cianciolo, V. Citron, Z. Cole, B. A. Connors, M. Constantin, P. Csanad, M. Csoergo, T. Dahms, T. Dairaku, S. Danchev, I. Das, K. Datta, A. David, G. Denisov, A. d'Enterria, D. Deshpande, A. Desmond, E. J. Dietzsch, O. Dion, A. Donadelli, M. Drapier, O. Drees, A. Drees, K. A. Dubey, A. K. Durham, J. M. Durum, A. Dutta, D. Dzhordzhadze, V. Edwards, S. Efremenko, Y. V. Ellinghaus, F. Engelmore, T. Enokizono, A. En'yo, H. Esumi, S. Eyser, K. O. Fadem, B. Fields, D. E. Finger, M. Finger, M., Jr. Fleuret, F. Fokin, S. L. Fraenkel, Z. Frantz, J. E. Franz, A. Frawley, A. D. Fujiwara, K. Fukao, Y. Fusayasu, T. Garishvili, I. Glenn, A. Gong, H. Gonin, M. Gosset, J. Goto, Y. de Cassagnac, R. Granier Grau, N. Greene, S. V. Perdekamp, M. Grosse Gunji, T. Gustafsson, H. -A. Henni, A. Hadj Haggerty, J. S. Hahn, K. I. Hamagaki, H. Hamblen, J. Han, R. Hanks, J. Hartouni, E. P. Haruna, K. Haslum, E. Hayano, R. He, X. Heffner, M. Hemmick, T. K. Hester, T. Hill, J. C. Hohlmann, M. Holzmann, W. Homma, K. Hong, B. Horaguchi, T. Hornback, D. Huang, S. Ichihara, T. Ichimiya, R. Ide, J. Iinuma, H. Ikeda, Y. Imai, K. Imrek, J. Inaba, M. Isenhower, D. Ishihara, M. Isobe, T. Issah, M. Isupov, A. Ivanischev, D. Jacak, B. V. Jia, J. Jin, J. Johnson, B. M. Joo, K. S. Jouan, D. Jumper, D. S. Kajihara, F. Kametani, S. Kamihara, N. Kamin, J. Kang, J. H. Kapustinsky, J. Karatsu, K. Kawall, D. Kawashima, M. Kazantsev, A. V. Kempel, T. Khanzadeev, A. Kijima, K. M. Kikuchi, J. Kim, B. I. Kim, D. H. Kim, D. J. Kim, E. Kim, E. J. Kim, S. H. Kim, Y. J. Kinney, E. Kiriluk, K. Kiss, A. Kistenev, E. Klay, J. Klein-Boesing, C. Kochenda, L. Komkov, B. Konno, M. Koster, J. Kotchetkov, D. Kozlov, A. Kral, A. Kravitz, A. Kunde, G. J. Kurita, K. Kurosawa, M. Kweon, M. J. Kwon, Y. Kyle, G. S. Lacey, R. Lai, Y. S. Lajoie, J. G. Layton, D. Lebedev, A. Lee, D. M. Lee, J. Lee, K. Lee, K. B. Lee, K. S. Lee, T. Leitch, M. J. Leite, M. A. L. Leitner, E. Lenzi, B. Li, X. Liebing, P. Levy, L. A. Linden Liska, T. Litvinenko, A. Liu, H. Liu, M. X. Love, B. Luechtenborg, R. Lynch, D. Maguire, C. F. Makdisi, Y. I. Malakhov, A. Malik, M. D. Manko, V. I. Mannel, E. Mao, Y. Masek, L. Masui, H. Matathias, F. McCumber, M. McGaughey, P. L. Means, N. Meredith, B. Miake, Y. Mignerey, A. C. Mikes, P. Miki, K. Milov, A. Mishra, M. Mitchell, J. T. Mohanty, A. K. Morino, Y. Morreale, A. Morrison, D. P. Moukhanova, T. V. Mukhopadhyay, D. Murata, J. Nagamiya, S. Nagle, J. L. Naglis, M. Nagy, M. I. Nakagawa, I. Nakamiya, Y. Nakamura, T. Nakano, K. Newby, J. Nguyen, M. Niita, T. Nouicer, R. Nyanin, A. S. O'Brien, E. Oda, S. X. Ogilvie, C. A. Oka, M. Okada, K. Onuki, Y. Oskarsson, A. Ouchida, M. Ozawa, K. Pak, R. Palounek, A. P. T. Pantuev, V. Papavassiliou, V. Park, I. H. Park, J. Park, S. K. Park, W. J. Pate, S. F. Pei, H. Peng, J-C. Pereira, H. Peresedov, V. Peressounko, D. Yu. Pinkenburg, C. Pisani, R. P. Proissl, M. Purschke, M. L. Purwar, A. K. Qu, H. Rak, J. Rakotozafindrabe, A. Ravinovich, I. Read, K. F. Rembeczki, S. Reygers, K. Riabov, V. Riabov, Y. Richardson, E. Roach, D. Roche, G. Rolnick, S. D. Rosati, M. Rosen, C. A. Rosendahl, S. S. E. Rosnet, P. Rukoyatkin, P. Ruzicka, P. Rykov, V. L. Sahlmueller, B. Saito, N. Sakaguchi, T. Sakai, S. Sakashita, K. Samsonov, V. Sano, S. Sato, T. Sawada, S. Sedgwick, K. Seele, J. Seidl, R. Semenov, A. Yu. Semenov, V. Seto, R. Sharma, D. Shein, I. Shibata, T. -A. Shigaki, K. Shimomura, M. Shoji, K. Shukla, P. Sickles, A. Silva, C. L. Silvermyr, D. Silvestre, C. Sim, K. S. Singh, B. K. Singh, C. P. Singh, V. Slunecka, M. Soldatov, A. Soltz, R. A. Sondheim, W. E. Sorensen, S. P. Sourikova, I. V. Sparks, N. A. Staley, F. Stankus, P. W. Stenlund, E. Stepanov, M. Ster, A. Stoll, S. P. Sugitate, T. Suire, C. Sukhanov, A. Sziklai, J. Takagui, E. M. Taketani, A. Tanabe, R. Tanaka, Y. Tanida, K. Tannenbaum, M. J. Tarafdar, S. Taranenko, A. Tarjan, P. Themann, H. Thomas, T. L. Togawa, M. Toia, A. Tomasek, L. Tomita, Y. Torii, H. Towell, R. S. Tram, V-N. Tserruya, I. Tsuchimoto, Y. Vale, C. Valle, H. van Hecke, H. W. Vazquez-Zambrano, E. Veicht, A. Velkovska, J. Vertesi, R. Vinogradov, A. A. Virius, M. Vrba, V. Vznuzdaev, E. Wang, X. R. Watanabe, D. Watanabe, K. Watanabe, Y. Wei, F. Wei, R. Wessels, J. White, S. N. Winter, D. Wood, J. P. Woody, C. L. Wright, R. M. Wysocki, M. Xie, W. Yamaguchi, Y. L. Yamaura, K. Yang, R. Yanovich, A. Ying, J. Yokkaichi, S. You, Z. Young, G. R. Younus, I. Yushmanov, I. E. Zajc, W. A. Zaudtke, O. Zhang, C. Zhou, S. Zolin, L. CA PHENIX Collaboration TI Suppression of away-side jet fragments with respect to the reaction plane in Au plus Au collisions at root s(NN)=200 GeV SO PHYSICAL REVIEW C LA English DT Article AB Pair correlations between large transverse momentum neutral pion triggers (p(T) = 4-7 GeV/c) and charged hadron partners (p(T) = 3-7 GeV/c) in central (0%-20%) and midcentral (20%-60%) Au + Au collisions at root s(NN) = 200 GeV are presented as a function of trigger orientation with respect to the reaction plane. The particles are at larger momentum than where jet shape modifications have been observed, and the correlations are sensitive to the energy loss of partons traveling through hot densematter. An out-of-plane trigger particle produces only 26 +/- 20% of the away-side pairs that are observed opposite of an in-plane trigger particle for midcentral (20%-60%) collisions. In contrast, near-side jet fragments are consistent with no suppression or dependence on trigger orientation with respect to the reaction plane. These observations are qualitatively consistent with a picture of little near-side parton energy loss either due to surface bias or fluctuations and increased away-side parton energy loss due to a long path through the medium. The away-side suppression as a function of reaction-plane angle is shown to be sensitive to both the energy loss mechanism and the space-time evolution of heavy-ion collisions. C1 [Adare, A.; Bickley, A. A.; Ellinghaus, F.; Glenn, A.; Kinney, E.; Kiriluk, K.; Levy, L. A. Linden; Nagle, J. L.; Rosen, C. A.; Seele, J.; Wysocki, M.] Univ Colorado, Boulder, CO 80309 USA. [Afanasiev, S.; Isupov, A.; Litvinenko, A.; Malakhov, A.; Peresedov, V.; Rukoyatkin, P.; Zolin, L.] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia. [Aidala, C.; Datta, A.; Kawall, D.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA. [Ajitanand, N. N.; Alexander, J.; Chung, P.; Holzmann, W.; Issah, M.; Jia, J.; Lacey, R.; Taranenko, A.; Wei, R.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Akiba, Y.; Aoki, K.; Asai, J.; Dairaku, S.; En'yo, H.; Fujiwara, K.; Fukao, Y.; Goto, Y.; Horaguchi, T.; Ichihara, T.; Ichimiya, R.; Iinuma, H.; Imai, K.; Ishihara, M.; Kametani, S.; Kawashima, M.; Kurita, K.; Kurosawa, M.; Mao, Y.; Murata, J.; Nakagawa, I.; Nakano, K.; Onuki, Y.; Rykov, V. L.; Saito, N.; Sakashita, K.; Shibata, T. -A.; Shoji, K.; Taketani, A.; Tanida, K.; Togawa, M.; Torii, H.; Watanabe, Y.; Yokkaichi, S.] RIKEN Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan. [Akiba, Y.; Deshpande, A.; En'yo, H.; Fields, D. E.; Goto, Y.; Perdekamp, M. Grosse; Ichihara, T.; Kamihara, N.; Kawall, D.; Liebing, P.; Nakagawa, I.; Okada, K.; Saito, N.; Taketani, A.; Tanida, K.; Watanabe, Y.; Xie, W.; Yokkaichi, S.] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Al-Bataineh, H.; Kyle, G. S.; Liu, H.; Papavassiliou, V.; Pate, S. F.; Stepanov, M.; Wang, X. R.] New Mexico State Univ, Las Cruces, NM 88003 USA. [Aoki, K.; Dairaku, S.; Fukao, Y.; Iinuma, H.; Imai, K.; Karatsu, K.; Saito, N.; Shoji, K.; Tanida, K.; Togawa, M.] Kyoto Univ, Kyoto 6068502, Japan. [Aphecetche, L.; Henni, A. Hadj] Univ Nantes, CNRS, IN2P3, Ecole Mines Nantes,SUBATECH, F-44307 Nantes, France. [Aramaki, Y.; Gunji, T.; Hamagaki, H.; Hayano, R.; Horaguchi, T.; Isobe, T.; Kajihara, F.; Morino, Y.; Oda, S. X.; Ozawa, K.; Sano, S.; Yamaguchi, Y. L.] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan. [Atomssa, E. T.; d'Enterria, D.; Drapier, O.; Fleuret, F.; Gonin, M.; de Cassagnac, R. 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C.; Richardson, E.] Univ Maryland, College Pk, MD 20742 USA. [Mishra, M.; Singh, B. K.; Singh, C. P.; Singh, V.; Tarafdar, S.] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India. [Nagamiya, S.; Nakamura, T.; Saito, N.; Sawada, S.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan. [Pantuev, V.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia. [Roche, G.; Rosnet, P.] Univ Clermont Ferrand, LPC, CNRS, IN2P3, F-63177 Aubiere, France. RP Adare, A (reprint author), Univ Colorado, Boulder, CO 80309 USA. RI Semenov, Vitaliy/E-9584-2017; seto, richard/G-8467-2011; Csanad, Mate/D-5960-2012; Hayano, Ryugo/F-7889-2012; HAMAGAKI, HIDEKI/G-4899-2014; Durum, Artur/C-3027-2014; Sorensen, Soren /K-1195-2016; Wei, Feng/F-6808-2012; Csorgo, Tamas/I-4183-2012; Yokkaichi, Satoshi/C-6215-2017; Taketani, Atsushi/E-1803-2017; Tomasek, Lukas/G-6370-2014; Dahms, Torsten/A-8453-2015; En'yo, Hideto/B-2440-2015 OI Hayano, Ryugo/0000-0002-1214-7806; Sorensen, Soren /0000-0002-5595-5643; Taketani, Atsushi/0000-0002-4776-2315; Tomasek, Lukas/0000-0002-5224-1936; Dahms, Torsten/0000-0003-4274-5476; FU Office of Nuclear Physics in the Office of Science of the Department of Energy; National Science Foundation; Renaissance Technologies LLC; Abilene Christian University Research Council; Research Foundation of SUNY; Dean of the College of Arts and Sciences; Vanderbilt University (USA); Ministry of Education, Culture, Sports, Science, and Technology; Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (People's Republic of China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Ministry of Industry, Science and Tekhnologies; Bundesministerium fur Bildung und Forschung; Deutscher Akademischer Austausch Dienst; Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund; OTKA (Hungary); Department of Atomic Energy and Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation; Ministry Education Science and Technology (Korea); Ministry of Education and Science; Russia Academy of Sciences; Federal Agency of Atomic Energy (Russia); VR; Wallenberg Foundation (Sweden); US Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Hungarian Fulbright Foundation for Educational Exchange; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, a sponsored research grant from Renaissance Technologies LLC, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (USA), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (People's Republic of China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Ministry of Industry, Science and Tekhnologies, Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation and WCU program of the Ministry Education Science and Technology (Korea), Ministry of Education and Science, Russia Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and the Wallenberg Foundation (Sweden), the US Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, the US-Hungarian Fulbright Foundation for Educational Exchange, and the US-Israel Binational Science Foundation. NR 34 TC 4 Z9 4 U1 6 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD AUG 9 PY 2011 VL 84 IS 2 AR 024904 DI 10.1103/PhysRevC.84.024904 PG 12 WC Physics, Nuclear SC Physics GA 805CH UT WOS:000293703500005 ER PT J AU Hwang, JK Hamilton, JH Ramayya, AV Brewer, NT Luo, YX Rasmussen, JO Zhu, SJ AF Hwang, J. K. Hamilton, J. H. Ramayya, A. V. Brewer, N. T. Luo, Y. X. Rasmussen, J. O. Zhu, S. J. TI Possible excited deformed rotational bands in Ge-82 SO PHYSICAL REVIEW C LA English DT Article ID EVEN-EVEN NUCLEI; SHAPE COEXISTENCE; ISOTOPES; HG-186; TL-186; STATES AB Excited states of neutron-rich nucleus Ge-82 were studied from the spontaneous fission of Cf-252. Eleven new transitions and seven new levels in Ge-82 were identified by using X( Dy)-gamma-gamma and gamma-gamma-gamma triple coincidences. Possible excited deformed rotational bands are observed, for the first time, in this nuclear region. Coexistence of the spherical ground and deformed excited shapes is proposed in Ge-82. These deformed rotational bands can be formed by two-particle, two-hole excitations with the 0(+) pairing energy states of the nu 9/2[404](-2) circle times 1/2[431](2) configuration across the N = 50 closed shell. C1 [Hwang, J. K.; Hamilton, J. H.; Ramayya, A. V.; Brewer, N. T.; Luo, Y. X.; Zhu, S. J.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA. [Luo, Y. X.; Rasmussen, J. O.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Zhu, S. J.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. RP Hwang, JK (reprint author), Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA. OI Hwang, Jae-Kwang/0000-0002-4100-3473 FU US Department of Energy [DE-FG05-88ER40407, DE-AC03-76SF00098]; National Natural Science Foundation of China [10975082]; Major State Basic Research Development Program [2007CB815005] FX The works at Vanderbilt University and Lawrence Berkeley National Laboratory were supported by the US Department of Energy under Grant No. DE-FG05-88ER40407 and Contract No. DE-AC03-76SF00098, respectively. The work at Tsinghua University was supported by the National Natural Science Foundation of China under Grant No. 10975082 and the Major State Basic Research Development Program under Grant No. 2007CB815005. NR 15 TC 7 Z9 7 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. 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Scodellaro, L. Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sforza, F. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shiraishi, S. Shochet, M. Shreyber, I. Simonenko, A. Sinervo, P. Sissakian, A. Sliwa, K. Smith, J. R. Snider, F. D. Soha, A. Somalwar, S. Sorin, V. Squillacioti, P. Stancari, M. Stanitzki, M. St Denis, R. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thome, J. Thompson, G. A. Thomson, E. Ttito-Guzman, P. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Tu, Y. Ukegawa, F. Uozumi, S. Varganov, A. Vazquez, F. Velev, G. Vellidis, C. Vidal, M. Vila, I. Vilar, R. Vogel, M. Volpi, G. Wagner, P. Wagner, R. L. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Wick, F. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamaoka, J. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zucchelli, S. CA CDF Collaboration TI Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using events with large missing transverse energy and jets SO PHYSICAL REVIEW D LA English DT Article ID PARTON DISTRIBUTIONS AB In this paper we report a measurement of the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV using data corresponding to an integrated luminosity of 2.2 fb(-1) collected with the CDF II detector at the Tevatron accelerator. We select events with significant missing transverse energy and high jet multiplicity. This measurement vetoes the presence of explicitly identified electrons and muons, thus enhancing the tau contribution of t (t) over bar decays. Signal events are discriminated from the background using a neural network, and heavy flavor jets are identified by a secondary-vertex tagging algorithm. We measure a t (t) over bar production cross section of 7.99 +/- 0.55(stat) +/- 0.76(syst) +/- 0.46(lumi) pb, assuming a top mass m(top) = 172.5 GeV/c(2), in agreement with previous measurements and standard model predictions. C1 [Aaltonen, T.; Brucken, E.; Devoto, F.; Mehtala, P.; Orava, R.] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland. [Carrillo, S.; Chen, Y. C.; Hou, S.; Mitra, A.; Mondragon, M. N.; Teng, P. K.; Vazquez, F.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [LeCompte, T.; Nodulman, L.; Paramonov, A. A.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. 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[Arisawa, T.; Ebina, K.; Funakoshi, Y.; Kimura, N.; Kondo, K.; Naganoma, J.; Sakurai, Y.; Yorita, K.] Waseda Univ, Tokyo 169, Japan. [Dorigo, T.; Gresele, A.; Harr, R. F.; Karchin, P. E.; Mattson, M. E.] Wayne State Univ, Detroit, MI 48201 USA. [Bellinger, J.; Carlsmith, D.; Chung, W. H.; Herndon, M.; Pondrom, L.; Pursley, J.; Ramakrishnan, V.] Univ Wisconsin, Madison, WI 53706 USA. [Auerbach, B.; Almenar, C. Cuenca; Husemann, U.; Lockwitz, S.; Loginov, A.; Schmidt, M. P.; Stanitzki, M.] Yale Univ, New Haven, CT 06520 USA. RP Aaltonen, T (reprint author), Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland. RI Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese /I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Chiarelli, Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; St.Denis, Richard/C-8997-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Ruiz, Alberto/E-4473-2011; Piacentino, Giovanni/K-3269-2015; Martinez Ballarin, Roberto/K-9209-2015; Gorelov, Igor/J-9010-2015; Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016 OI Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi, Gianluca/0000-0002-1314-2580; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; Punzi, Giovanni/0000-0002-8346-9052; Ruiz, Alberto/0000-0002-3639-0368; Piacentino, Giovanni/0000-0001-9884-2924; Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov, Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A. P. Sloan Foundation; Bundesministerium fuer Bildung und Forschung, Germany; Korean Science and Engineering Foundation; Korean Research Foundation; Particle Physics and Astronomy Research Council; Royal Society, UK; Russian Foundation for Basic Research; Comision Interministerial de Ciencia y Tecnologia, Spain; European Community [HPRN-CT-2002-00292] FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium fuer Bildung und Forschung, Germany; the Korean Science and Engineering Foundation and the Korean Research Foundation; the Particle Physics and Astronomy Research Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Comision Interministerial de Ciencia y Tecnologia, Spain; and in part by the European Community's Human Potential Programme under Contract No. HPRN-CT-2002-00292, Probe for New Physics. NR 32 TC 8 Z9 8 U1 2 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD AUG 9 PY 2011 VL 84 IS 3 AR 032003 DI 10.1103/PhysRevD.84.032003 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 805CJ UT WOS:000293703700001 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Das, A Davies, G De, K de Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S Deterre, C DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Garcia-Bellido, A Gavrilov, V Gay, P Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guillemin, T Guo, F Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jamin, D Jayasinghe, A Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Jung, AW Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kulikov, S Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M de Sa, RL Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Miconi, F Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJY Padilla, M Pal, A Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petridis, K Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Polozov, P Popov, AV Prewitt, M Price, D Prokopenko, N Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Rominsky, M Ross, A Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Salcido, P Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Soustruznik, K Stark, J Stolin, V Stoyanova, DA Strauss, M Strom, D Stutte, L Suter, L Svoisky, P Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsai, YT Tsybychev, D Tuchming, B Tully, C Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vokac, P Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L White, A Wicke, D Williams, MRJ Wilson, GW Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, YA Ye, Z Yin, H Yip, K Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. Chevalier-Thery, S. Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Das, A. Davies, G. De, K. de Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. Deterre, C. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph. Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guillemin, T. Guo, F. Gutierrez, G. Gutierrez, P. Haas, A. Hagopian, S. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J. M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A. P. Heintz, U. Hensel, C. Heredia-De La Cruz, I. Herner, K. Hesketh, G. Hildreth, M. D. Hirosky, R. Hoang, T. Hobbs, J. D. Hoeneisen, B. Hohlfeld, M. Hubacek, Z. Huske, N. Hynek, V. Iashvili, I. Illingworth, R. Ito, A. S. Jabeen, S. Jaffre, M. Jamin, D. Jayasinghe, A. Jesik, R. Johns, K. Johnson, M. Johnston, D. Jonckheere, A. Jonsson, P. Joshi, J. Jung, A. W. Juste, A. Kaadze, K. Kajfasz, E. Karmanov, D. Kasper, P. A. Katsanos, I. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y. N. Khatidze, D. Kirby, M. H. Kohli, J. M. Kozelov, A. V. Kraus, J. Kulikov, S. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V. A. Kvita, J. Lammers, S. Landsberg, G. Lebrun, P. Lee, H. S. Lee, S. W. Lee, W. M. Lellouch, J. Li, L. Li, Q. Z. Lietti, S. M. Lim, J. K. Lincoln, D. Linnemann, J. Lipaev, V. V. Lipton, R. Liu, Y. Liu, Z. Lobodenko, A. Lokajicek, M. de Sa, R. Lopes Lubatti, H. J. Luna-Garcia, R. Lyon, A. L. Maciel, A. K. A. Mackin, D. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V. L. Maravin, Y. Martinez-Ortega, J. McCarthy, R. McGivern, C. L. Meijer, M. M. Melnitchouk, A. Menezes, D. Mercadante, P. G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N. K. Muanza, G. S. Mulhearn, M. Nagy, E. Naimuddin, M. Narain, M. Nayyar, R. Neal, H. A. Negret, J. P. Neustroev, P. Novaes, S. F. Nunnemann, T. Obrant, G. Orduna, J. Osman, N. Osta, J. Otero y Garzon, G. J. Padilla, M. Pal, A. Parashar, N. Parihar, V. Park, S. K. Parsons, J. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, K. Peters, Y. Petridis, K. Petrillo, G. Petroff, P. Piegaia, R. Piper, J. Pleier, M. -A. Podesta-Lerma, P. L. M. Podstavkov, V. M. Polozov, P. Popov, A. V. Prewitt, M. Price, D. Prokopenko, N. Protopopescu, S. Qian, J. Quadt, A. Quinn, B. Rangel, M. S. Ranjan, K. Ratoff, P. N. Razumov, I. Renkel, P. Rijssenbeek, M. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Salcido, P. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Precise measurement of the top-quark mass from lepton plus jets events at D0 SO PHYSICAL REVIEW D LA English DT Article ID DETECTOR AB We report a measurement of the mass of the top quark in lepton + jets final states of p (p) over bar -> t (t) over bar data corresponding to 2.6 fb(-1) of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider. A matrix-element method is developed that combines an in situ jet energy calibration with our standard jet energy scale derived from studies of gamma + jet and dijet events. We then implement a flavor-dependent jet-response correction through a novel approach. This method is used to measure a top-quark mass of m(t) = 176.01 +/- 1.64 GeV. Combining this result with our previous result obtained on an independent data set, we measure a top-quark mass of m(t) = 174.94 +/- 1.49 GeV for a total integrated luminosity of 3.6 fb(-1). C1 [Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia. [Otero y Garzon, G. J.; Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina. [Alves, G. A.; Maciel, A. K. A.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil. [Barreto, J.; Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil. [Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Lietti, S. M.; Novaes, S. F.; Santos, A. S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil. [Beale, S.; Liu, Z.; Taylor, W.] Simon Fraser Univ, Vancouver, BC, Canada. [Beale, S.; Liu, Z.; Taylor, W.] York Univ, Toronto, ON M3J 2R7, Canada. [Han, L.; Liu, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Avila, C.; Negret, J. P.] Univ Los Andes, Bogota, Colombia. [Kvita, J.; Soustruznik, K.] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic. [Hubacek, Z.; Hynek, V.; Simak, V.; Vokac, P.] Czech Tech Univ, CR-16635 Prague, Czech Republic. [Kupco, A.; Lokajicek, M.] Acad Sci Czech Republic, Inst Phys, Ctr Particle Phys, Prague, Czech Republic. [Hoeneisen, B.] Univ San Francisco Quito, Quito, Ecuador. [Badaud, F.; Gay, P.; Gris, Ph.] Univ Clermont Ferrand, CNRS, IN2P3, LPC, Clermont, France. [Sajot, G.; Stark, J.] Univ Grenoble 1, CNRS, LPSC, IN2P3,Inst Natl Polytech Grenoble, Grenoble, France. [Calpas, B.; Cousinou, M. -C.; Duperrin, A.; Geng, W.; Jamin, D.; Kajfasz, E.; Kermiche, S.; Muanza, G. S.; Nagy, E.; Osman, N.] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France. [Grivaz, J. -F.; Guillemin, T.; Jaffre, M.; Petroff, P.] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France. [Bernardi, G.; Brown, D.; Brown, J.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 06, CNRS, LPNHE, IN2P3, Paris, France. [Bernardi, G.; Brown, D.; Brown, J.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 07, CNRS, LPNHE, IN2P3, Paris, France. [Bassler, U.; Besancon, M.; Chevalier-Thery, S.; Couderc, F.; Croc, A.; Deliot, F.; Deterre, C.; Grohsjean, A.; Hubacek, Z.; Madar, R.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] CEA, SPP, Saclay, France. [Greder, S.; Miconi, F.; Ripp-Baudot, I.] Univ Strasbourg, IPHC, CNRS, IN2P3, Strasbourg, France. [Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France. [Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon, Lyon, France. [Hebbeker, T.; Meyer, A.; Sonnenschein, L.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bernhard, R.] Univ Freiburg, Inst Phys, Freiburg, Germany. [Brandt, O.; Hensel, C.; Meyer, J.; Quadt, A.; Shabalina, E.] Univ Gottingen, Inst Phys 2, Gottingen, Germany. [Buescher, V.; Fiedler, F.; Hohlfeld, M.] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany. [Nunnemann, T.; Sanders, M. P.] Univ Munich, Munich, Germany. [Schliephake, T.; Wicke, D.] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany. [Beri, S. B.; Bhatnagar, V.; Dutt, S.; Joshi, J.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India. [Choudhary, B.; Dubey, A.; Naimuddin, M.; Nayyar, R.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Acharya, B. S.; Banerjee, S.; Mondal, N. K.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India. [Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland. [Cho, S. W.; Choi, S.; Lee, H. S.; Lim, J. K.; Park, S. 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A.] Inst High Energy Phys, Protvino, Russia. [Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Juste, A.] ICREA, Barcelona, Spain. [Juste, A.] IFAE, Barcelona, Spain. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Ratoff, P. N.; Ross, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Scanlon, T.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Harder, K.; Head, T.; Hesketh, G.; Peters, K.; Peters, Y.; Petridis, K.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Jung, A. W.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Salcido, P.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Carrasco-Lizarraga, M. A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; de Sa, R. Lopes; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Parihar, V.; Partridge, R.; Zivkovic, L.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Pal, A.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Orduna, J.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; Gutierrez, Phillip/C-1161-2011; bu, xuebing/D-1121-2012; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012; Alves, Gilvan/C-4007-2013; Yip, Kin/D-6860-2013; Fisher, Wade/N-4491-2013 OI Weber, Michele/0000-0002-2770-9031; Grohsjean, Alexander/0000-0003-0748-8494; Melnychuk, Oleksandr/0000-0002-2089-8685; Bassler, Ursula/0000-0002-9041-3057; Price, Darren/0000-0003-2750-9977; Filthaut, Frank/0000-0003-3338-2247; Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne, Camille/0000-0003-2368-2617; De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Williams, Mark/0000-0001-5448-4213; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; Yip, Kin/0000-0002-8576-4311; FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP (Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF (Korea); KOSEF (Korea); CONICET (Argentina); UBACyT (Argentina); FOM (The Netherlands); STFC (United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic); GACR (Czech Republic); CRC (Canada); NSERC (Canada); BMBF (Germany); DFG (Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS (China); CNSF FX We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 36 TC 34 Z9 34 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD AUG 9 PY 2011 VL 84 IS 3 AR 032004 DI 10.1103/PhysRevD.84.032004 PG 19 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 805CJ UT WOS:000293703700002 ER PT J AU Buckley, MR AF Buckley, Matthew R. TI Asymmetric dark matter and effective operators SO PHYSICAL REVIEW D LA English DT Article ID BARYONS AB In order to annihilate in the early Universe to levels well below the measured dark matter density, asymmetric dark matter must possess large couplings to the standard model. In this paper, we consider effective operators which allow asymmetric dark matter to annihilate into quarks. In addition to a bound from requiring sufficient annihilation, the energy scale of such operators can be constrained by limits from direct detection and monojet searches at colliders. We show that the allowed parameter space for these operators is highly constrained, leading to nontrivial requirements that any model of asymmetric dark matter must satisfy. C1 Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. RP Buckley, MR (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. OI Buckley, Matthew/0000-0003-1109-3460 NR 65 TC 37 Z9 37 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 9 PY 2011 VL 84 IS 4 AR 043510 DI 10.1103/PhysRevD.84.043510 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 805CO UT WOS:000293704200003 ER PT J AU Cheung, C Zurek, KM AF Cheung, Clifford Zurek, Kathryn M. TI Affleck-Dine cogenesis SO PHYSICAL REVIEW D LA English DT Article ID FERMION-NUMBER VIOLATION; DARK-MATTER; FLAT DIRECTIONS; EARLY UNIVERSE; BARYOGENESIS; BARYON; PUZZLE; ORIGIN AB We propose a novel framework in which the observed baryon and dark matter abundances are simultaneously generated via the Affleck-Dine mechanism. In its simplest realization, Affleck-Dine cogenesis is accomplished by a single superpotential operator and its A-term counterpart. These operators explicitly break B - L and X, the dark matter number, to the diagonal B - L + X. In the early universe these operators stabilize supersymmetric flat directions carrying nonzero B - L and X, and impart the requisite CP violation for asymmetry generation. Because B - L + X is preserved, the resulting B - L and X asymmetries are equal and opposite, though this precise relation may be relaxed if B - L and X are violated separately by additional operators. Our dark matter candidate is stabilized by R parity and acquires an asymmetric abundance due to its nonzero X number. For a dark matter mass of order a few GeV, one naturally obtains the observed ratio of energy densities today, Omega(DM)/Omega(B) similar to 5. These theories typically predict macroscopic lifetimes for the lightest observable supersymmetric particle as it decays to the dark matter. C1 [Cheung, Clifford] Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA. [Cheung, Clifford] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA. [Zurek, Kathryn M.] Univ Michigan, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA. RP Cheung, C (reprint author), Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA. FU Office of Science, Office of High Energy and Nuclear Physics, of the U.S. Department of Energy [DE-AC02-05CH11231]; National Science Foundation [PHY-0457315] FX We thank Hai-Bo Yu for collaboration during the early stages of this work. C. C. is supported in part by the Director, Office of Science, Office of High Energy and Nuclear Physics, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 and by the National Science Foundation under Grant No. PHY-0457315. NR 53 TC 49 Z9 49 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 9 PY 2011 VL 84 IS 3 AR 035007 DI 10.1103/PhysRevD.84.035007 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 805CJ UT WOS:000293703700012 ER PT J AU Gissinger, C Ji, HT Goodman, J AF Gissinger, Christophe Ji, Hantao Goodman, Jeremy TI Instabilities in magnetized spherical Couette flow SO PHYSICAL REVIEW E LA English DT Article ID NON-AXISYMMETRICAL INSTABILITIES; MAGNETOROTATIONAL INSTABILITY; ROTATING SPHERES; FIELD; STABILITY; LAYERS; SHELL AB We report three-dimensional numerical simulations of the flow of an electrically conducting fluid in a spherical shell when a magnetic field is applied. Different spherical Couette configurations are investigated by varying the rotation ratio between the inner and the outer sphere, the geometry of the imposed field, and the magnetic boundary conditions on the inner sphere. Either a Stewartson layer or a Shercliff layer, accompanied by a radial jet, can be generated depending on the rotation speeds and the magnetic-field strength, and various nonaxisymmetric destabilizations of the flow are observed. We show that instabilities arising from the presence of boundaries present striking similarities with the magnetorotational instability (MRI). To this end, we compare our numerical results to experimental observations of the Maryland experiment [D. R. Sisan et al., Phys. Rev. Lett. 93, 114502 (2004)], which claimed to observe MRI in a similar setup. C1 [Gissinger, Christophe] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Gissinger, Christophe; Ji, Hantao; Goodman, Jeremy] Princeton Univ, Princeton Plasma Phys Lab, Ctr Magnet Self Org Lab & Astrophys Plasmas, Princeton, NJ 08543 USA. RP Gissinger, C (reprint author), Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. FU NSF [AST-0607472]; NASA [ATP06-35, APRA08-0066]; DOE [DE-AC02-09CH11466]; NSF Center for Magnetic Self-Organization [PHY-0821899] FX This work was supported by the NSF under Grant No. AST-0607472, by NASA under Grant Nos. ATP06-35 and APRA08-0066, by the DOE under Contract No. DE-AC02-09CH11466, and by the NSF Center for Magnetic Self-Organization under Grant No. PHY-0821899. We have benefited from useful discussions with E. Edlund, A. Roach, E. Spence, and R. Hollerbach. NR 37 TC 16 Z9 16 U1 1 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD AUG 9 PY 2011 VL 84 IS 2 AR 026308 DI 10.1103/PhysRevE.84.026308 PN 2 PG 10 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 806BY UT WOS:000293778600002 PM 21929091 ER PT J AU Roth, R Langhammer, J Calci, A Binder, S Navratil, P AF Roth, Robert Langhammer, Joachim Calci, Angelo Binder, Sven Navratil, Petr TI Similarity-Transformed Chiral NN+3N Interactions for the Ab Initio Description of C-12 and O-16 SO PHYSICAL REVIEW LETTERS LA English DT Article AB We present first ab initio no-core shell model (NCSM) calculations using similarity renormalization group (SRG) transformed chiral two-nucleon (NN) plus three-nucleon (3N) interactions for nuclei throughout the p-shell, particularly C-12 and O-16. By introducing an adaptive importance truncation for the NCSM model space and an efficient JT-coupling scheme for the 3N matrix elements, we are able to surpass previous NCSM studies including 3N interactions. We present ground and excited states in C-12 and O-16 for model spaces up to N-max = 12 including full 3N interactions. We analyze the contributions of induced and initial 3N interactions and probe induced 4N terms through the sensitivity of the energies on the SRG flow parameter. Unlike for light p-shell nuclei, SRG-induced 4N contributions originating from the long-range two-pion terms of the chiral 3N interaction are sizable in C-12 and O-16. C1 [Roth, Robert; Langhammer, Joachim; Calci, Angelo; Binder, Sven] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Navratil, Petr] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Navratil, Petr] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Roth, R (reprint author), Tech Univ Darmstadt, Inst Kernphys, Petersenstr 30, D-64289 Darmstadt, Germany. EM robert.roth@physik.tu-darmstadt.de RI Roth, Robert/B-6502-2008 FU DFG [SFB 634]; Helmholtz International Center for FAIR (HIC for FAIR); BMBF [06DA9040I]; UNEDF SciDAC Collaboration DOE [DE-FC02-07ER41457, DE-AC52-07NA27344]; UNEDF SciDAC Collaboration NSERC [401945-2011] FX Numerical calculations have been performed at the Julich Supercomputing Centre and at LOEWE-CSC. Supported by the DFG through contract SFB 634, the Helmholtz International Center for FAIR (HIC for FAIR), and the BMBF (06DA9040I). P. N. acknowledges partial support from the UNEDF SciDAC Collaboration DOE Grant DE-FC02-07ER41457, the DOE Contract DE-AC52-07NA27344, and the NSERC grant No. 401945-2011. NR 19 TC 136 Z9 136 U1 1 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 9 PY 2011 VL 107 IS 7 AR 072501 DI 10.1103/PhysRevLett.107.072501 PG 5 WC Physics, Multidisciplinary SC Physics GA 805DC UT WOS:000293705600004 PM 21902388 ER PT J AU Alemseghed, MG Ruberu, TPA Vela, J AF Alemseghed, Mussie G. Ruberu, T. Purnima A. Vela, Javier TI Controlled Fabrication of Colloidal Semiconductor-Metal Hybrid Heterostructures: Site Selective Metal Photo Deposition SO CHEMISTRY OF MATERIALS LA English DT Article DE semiconductor; metal; heterostructure; hybrid; photo deposition; site selectivity ID PHOTOCHEMICAL HYDROGEN-PRODUCTION; SOLAR-ENERGY CONVERSION; CADMIUM-SULFIDE; VISIBLE-LIGHT; CDS NANORODS; NANOCRYSTALS; GROWTH; NANOSTRUCTURES; PHOTODEPOSITION; NANOPARTICLES AB Reliable synthesis of semiconductor-metal heterostructures would increase their availability for fundamental studies and applications in catalytic, magnetic, and opto-electonic devices. Here, we demonstrate there are three main pathways for the formation of Pt and Pd nanoparticles on CdS and CdS(0.4)Se(0.6) nanorods. A thermal pathway and photochemical pathway occur when the metal precursor is heated or irradiated directly in the presence of an electron donor, leading to homogeneous nucleation and formation of freestanding metal nanoparticles. A separate photochemical pathway occurs in the presence of semiconductor nanorods, leading to exciton formation and quenching by electron trapping at surface defect sites. The localized electrons act as seeding points, leading to heterogeneous nucleation and formation of surface-bound metal nanoparticles. Careful selection of synthetic conditions allows deposition of Pt and Pd particles on CdS and CdS(0.4)Se(0.6) nanorods with a high degree of selectivity (90-95% surface-bound obtained photochemically) over the formation of freestanding metal particles (70-94% unattached under thermal conditions). In addition, metal photo deposition occurs on specific segments of CdS(0.4)Se(0.6) nanorods with compositional anisotropy by taking advantage of the band gap differential between different nanodomains. Irradiation at short wavelengths favors formation of Pd nanoparticles on the large band gap CdS-rich region of the nanorods (57% and 55% at 350 and 420 nm, respectively), while irradiation at longer wavelengths favors the formation of Pd nanoparticles on the small band gap CdSe-rich region of the nanorods (83% at 575 nm). The ability to tune the spatial composition of these and similar heterostructures will impact the ability to engineer and direct energy flows at the nanoscale. C1 [Vela, Javier] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. US DOE, Ames Lab, Ames, IA 50011 USA. RP Vela, J (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM vela@iastate.edu RI Vela, Javier/I-4724-2014 OI Vela, Javier/0000-0001-5124-6893 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences through the Ames Laboratory; Iowa State University [DE-AC02-07CH11358]; U.S. Department of Energy Ames Laboratory Royalty Account; Institute for Physical Research and Technology (IPRT) FX This research is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences through the Ames Laboratory. The Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract DE-AC02-07CH11358. We thank Iowa State University (ISU), the U.S. Department of Energy Ames Laboratory Royalty Account, and the Institute for Physical Research and Technology (IPRT) for laboratory startup funds (J.V.), ISU Chemistry Department for a Women in Chemistry Award (T.P.A.R.), Yaqiao Wu for helpful discussions, and Andreja Bakac, Aaron Sadow, John Verkade and Keith Woo for initial access to equipment. NR 50 TC 37 Z9 37 U1 3 U2 50 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD AUG 9 PY 2011 VL 23 IS 15 BP 3571 EP 3579 DI 10.1021/cm201513a PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 800KA UT WOS:000293357100023 ER PT J AU Campbell, IH AF Campbell, I. H. TI Improving the spectral response of amorphous Se photodetectors using organic semiconductors SO APPLIED PHYSICS LETTERS LA English DT Article ID SOLAR-CELLS; THIN-FILMS; SELENIUM; EFFICIENCY; MOBILITIES; HOLES AB We demonstrate a heterojunction amorphous Se (a-Se)/organic semiconductor photodetector that extends the long wavelength spectral response of pure a-Se devices from a cutoff of about 500 nm to 1000 nm. We show that a-Se/organic interfaces behave similarly to organic/organic interfaces in terms of energy level alignments and organic exciton dissociation. Due to the large ionization potential of a-Se (5.7 eV), organic materials with similarly large ionization potentials are required for hole injection into a-Se and possible avalanche multiplication. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624844] C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Campbell, IH (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM campbell@lanl.gov NR 23 TC 7 Z9 7 U1 1 U2 15 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 8 PY 2011 VL 99 IS 6 AR 063303 DI 10.1063/1.3624844 PG 3 WC Physics, Applied SC Physics GA 806ZQ UT WOS:000293857700074 ER PT J AU Kumar, RS Zhang, Y Xiao, YM Baker, J Cornelius, A Veeramalai, S Chow, P Chen, CF Zhao, YS AF Kumar, Ravhi S. Zhang, Yi Xiao, Yuming Baker, Jason Cornelius, Andrew Veeramalai, Sathishkumar Chow, Paul Chen, Changfeng Zhao, Yusheng TI Pressure induced high spin-low spin transition in FeSe superconductor studied by x-ray emission spectroscopy and ab initio calculations SO APPLIED PHYSICS LETTERS LA English DT Article ID SE SYSTEM; TEMPERATURE; MOSSBAUER; CRYSTAL; PHASE AB FeSe is a simple binary system in the iron based superconducting family and exhibits a significant pressure induced increase in the superconducting transition temperature (T(c)). In addition to pressure effect, spin fluctuations, magnetic ordering, and crystal structure all play vital roles in altering T(c). Even though various experiments and theoretical simulations explain the connection among them and superconductivity, the interplay between these important parameters is still not clearly understood. Here, we report the pressure effect on the spin state of Fe in FeSe superconductor studied using synchrotron x-ray emission spectroscopy at ambient and low temperatures down to 8 K near T(c). Pressure induced high spin to low spin transition was observed at both ambient and low temperatures with continuous suppression of Fe magnetic moments under increasing pressure. The spin transition is closely related to the pressure induced tetragonal to orthorhombic structural transition. (C) 2011 American Institute of Physics. [doi:10.1063/1.3621859] C1 [Kumar, Ravhi S.; Zhang, Yi; Baker, Jason; Cornelius, Andrew; Veeramalai, Sathishkumar; Chen, Changfeng; Zhao, Yusheng] Univ Nevada, High Pressure Sci & Engn Ctr HiPSEC, Las Vegas, NV 89154 USA. [Kumar, Ravhi S.; Zhang, Yi; Baker, Jason; Cornelius, Andrew; Veeramalai, Sathishkumar; Chen, Changfeng; Zhao, Yusheng] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA. [Xiao, Yuming; Chow, Paul] Argonne Natl Lab, HPCAT, Argonne, IL 60439 USA. [Xiao, Yuming; Chow, Paul] Argonne Natl Lab, Adv Photon Source, Carnegie Inst Washington, Argonne, IL 60439 USA. RP Kumar, RS (reprint author), Univ Nevada, High Pressure Sci & Engn Ctr HiPSEC, 4505 Maryland Pkwy, Las Vegas, NV 89154 USA. EM ravhi@physics.unlv.edu; zhangyi@physics.unlv.edu RI Zhang, Yi/C-9291-2011; Cornelius, Andrew/A-9837-2008; Kumar, Ravhi/B-8427-2012; OI Kumar, Ravhi/0000-0002-1967-1619 FU DOE-NNSA; DOE-BES [DE-AC02-06CH11357]; NSF; US Department of Energy, National Nuclear Security Administration [DE-FC52-06NA26274] FX Portions of this work were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT is supported by CIW, CDAC, UNLV, and LLNL through funding from DOE-NNSA, DOE-BES, and NSF. APS is supported by DOE-BES under Contract No. DE-AC02-06CH11357. The UNLV High Pressure Science and Engineering Center was supported by the US Department of Energy, National Nuclear Security Administration, under Co-operative Agreement No. DE-FC52-06NA26274. NR 18 TC 8 Z9 8 U1 2 U2 28 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 8 PY 2011 VL 99 IS 6 AR 061913 DI 10.1063/1.3621859 PG 3 WC Physics, Applied SC Physics GA 806ZQ UT WOS:000293857700023 ER PT J AU Lee, BG Stradins, P Young, DL Alberi, K Chuang, TK Couillard, JG Branz, HM AF Lee, Benjamin G. Stradins, Paul Young, David L. Alberi, Kirstin Chuang, Ta-Ko Couillard, J. Gregory Branz, Howard M. TI Light trapping by a dielectric nanoparticle back reflector in film silicon solar cells SO APPLIED PHYSICS LETTERS LA English DT Article ID WHITE PAINT; INTENSITY AB Drop-coated high-refractive-index nanoparticles used as a back reflector for thin-film solar cells are non-absorbing Mie-scatterers that enhance light trapping. We present optical measurements and theory for this approach. A 40% enhancement of the photocurrent and efficiency of a 2.5 mu m thick single-crystal Si solar cell on display glass is achieved by adding a back reflector of 270 nm rutile TiO(2) nanoparticles. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3615796] C1 [Lee, Benjamin G.; Stradins, Paul; Young, David L.; Alberi, Kirstin; Branz, Howard M.] Natl Ctr Photovolta, Natl Renewable Energy Lab, Golden, CO 80401 USA. [Chuang, Ta-Ko; Couillard, J. Gregory] Corning Inc, Corning, NY 14831 USA. RP Lee, BG (reprint author), Natl Ctr Photovolta, Natl Renewable Energy Lab, Golden, CO 80401 USA. EM Benjamin.Lee@nrel.gov FU U.S. DOE [DE-AC36-08GO28308] FX NREL work is supported by the U.S. DOE Solar Energy Technology Program under Contract No. DE-AC36-08GO28308. The authors thank C. Teplin, V. Yost, L. Roybal, M. Shub, C. Beall, and the late E. Iwaniczko for technical help in device fabrication. NR 16 TC 21 Z9 21 U1 2 U2 21 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 8 PY 2011 VL 99 IS 6 AR 064101 DI 10.1063/1.3615796 PG 3 WC Physics, Applied SC Physics GA 806ZQ UT WOS:000293857700093 ER PT J AU Pfau, B Gunther, CM Guehrs, E Hauet, T Yang, H Vinh, L Xu, X Yaney, D Rick, R Eisebitt, S Hellwig, O AF Pfau, B. Guenther, C. M. Guehrs, E. Hauet, T. Yang, H. Vinh, L. Xu, X. Yaney, D. Rick, R. Eisebitt, S. Hellwig, O. TI Origin of magnetic switching field distribution in bit patterned media based on pre-patterned substrates SO APPLIED PHYSICS LETTERS LA English DT Article ID NANOSTRUCTURES; ANISOTROPY AB Using a combination of synchrotron radiation based magnetic imaging and high-resolution transmission electron microscopy we reveal systematic correlations between the magnetic switching field and the internal nanoscale structure of individual islands in bit patterned media fabricated by Co/Pd-multilayer deposition onto pre-patterned substrates. We find that misaligned grains at the island periphery are a common feature independent of the island switching field, while irregular island shapes and misaligned grains specifically extending into the center of an island are systematically correlated with a reduced island reversal field. (C) 2011 American Institute of Physics. [doi:10.1063/1.3623488] C1 [Pfau, B.; Guenther, C. M.; Guehrs, E.; Eisebitt, S.] Tech Univ Berlin, Inst Opt & Atomare Phys, D-10623 Berlin, Germany. [Pfau, B.; Guenther, C. M.; Eisebitt, S.] Helmholtz Zentrum Berlin Mat & Energie GmbH, D-12489 Berlin, Germany. [Hauet, T.; Yang, H.; Vinh, L.; Xu, X.; Yaney, D.; Hellwig, O.] Hitachi Global Storage Technol, San Jose Res Ctr, San Jose, CA 95135 USA. [Rick, R.] SLAC, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. RP Pfau, B (reprint author), Tech Univ Berlin, Inst Opt & Atomare Phys, Hardenbergstr 36, D-10623 Berlin, Germany. EM Olav.Hellwig@hitachigst.com RI Pfau, Bastian/B-4953-2014; OI Pfau, Bastian/0000-0001-9057-0346; Gunther, Christian Michael/0000-0002-3750-7556 NR 12 TC 26 Z9 26 U1 0 U2 14 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 EI 1077-3118 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 8 PY 2011 VL 99 IS 6 AR 062502 DI 10.1063/1.3623488 PG 3 WC Physics, Applied SC Physics GA 806ZQ UT WOS:000293857700040 ER PT J AU Qiao, L Droubay, TC Bowden, ME Shutthanandan, V Kaspar, TC Chambers, SA AF Qiao, L. Droubay, T. C. Bowden, M. E. Shutthanandan, V. Kaspar, T. C. Chambers, S. A. TI LaCrO3 heteroepitaxy on SrTiO3(001) by molecular beam epitaxy SO APPLIED PHYSICS LETTERS LA English DT Article ID SPECTROSCOPY; THICKNESS; FILMS AB Stoichiometric, epitaxial LaCrO3 films have been grown on SrTiO3(001) by molecular beam epitaxy using O-2 as the oxidant. Films grew in a layer-by-layer fashion, giving rise to coherently strained, structurally excellent films and surfaces which preserve the step-terrace structure of the substrate. The critical thickness is in excess of 500 angstrom. Cr(III) near the surface is easily oxidized to Cr(V) upon exposure to atomic oxygen and reduction back to Cr(III) is readily achieved by vacuum annealing, resulting in tunability of the charge state at the B-site cation. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624473] C1 [Qiao, L.; Droubay, T. C.; Bowden, M. E.; Shutthanandan, V.; Kaspar, T. C.; Chambers, S. A.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Chambers, SA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM sa.chambers@pnl.gov RI Qiao, Liang/A-8165-2012; Droubay, Tim/D-5395-2016 OI Droubay, Tim/0000-0002-8821-0322 FU Office of Science, Division of Materials Sciences and Engineering and Division of Chemical Sciences, U.S. Department of Energy; Office of Biological and Environmental Research of the Department of Energy and located at Pacific Northwest National Laboratory FX This work was supported by the Office of Science, Division of Materials Sciences and Engineering and Division of Chemical Sciences, U.S. Department of Energy and was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Office of Biological and Environmental Research of the Department of Energy and located at Pacific Northwest National Laboratory. NR 16 TC 16 Z9 16 U1 2 U2 62 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD AUG 8 PY 2011 VL 99 IS 6 AR 061904 DI 10.1063/1.3624473 PG 3 WC Physics, Applied SC Physics GA 806ZQ UT WOS:000293857700014 ER PT J AU Mahmud, KW Duchon, EN Kato, Y Kawashima, N Scalettar, RT Trivedi, N AF Mahmud, K. W. Duchon, E. N. Kato, Y. Kawashima, N. Scalettar, R. T. Trivedi, N. TI Finite-temperature study of bosons in a two-dimensional optical lattice SO PHYSICAL REVIEW B LA English DT Article ID ULTRACOLD ATOMIC GASES; BOSE-HUBBARD MODEL; MOTT INSULATOR; SUPERFLUID; TRANSITION; DOMAINS; PHYSICS AB We use quantum Monte Carlo (QMC) simulations to study the combined effects of harmonic confinement and temperature for bosons in a two-dimensional(2D) optical lattice. The scale-invariant, finite temperature state diagram is presented for the Bose-Hubbard model in terms of experimental parameters - the particle number, confining potential and interaction strength. To distinguish the nature of the spatially separated superfluid, Mott insulator, and normal Bose liquid phases, we examine the local density, compressibility, superfluid density, and Green's function. In the annular superfluid rings, as the width of the ring decreases, the long-range superfluid correlations start to deviate from an equivalent homogeneous 2D system. At zero temperature, the correlation decay is intermediate between one- dimension and two-dimensions, while at a finite temperature, the decay is similar to that in one-dimension at a much lower temperature. The calculations reveal shortcomings of the local density approximation in describing superfluid properties of trapped bosons. We also present the finite-temperature phase diagram for the homogeneous two dimensional Bose-Hubbard model. We compare our state diagram with the results of a recent experiment at NIST on a harmonically trapped 2D lattice [Phys. Rev. Lett. 105, 110401 (2010)], and identify a finite-temperature effect in the experiment. C1 [Mahmud, K. W.; Scalettar, R. T.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Duchon, E. N.; Trivedi, N.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Kato, Y.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Kawashima, N.] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan. RP Mahmud, KW (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. FU ARO [W911NF0710576]; DARPA; NSF [1005503]; Institute of Complex Adaptive Matter (ICAM) FX This work was supported under ARO Grant No. W911NF0710576 with funds from the DARPA OLE program, and by NSF grant 1005503. K. W. M. acknowledges a travel award from the Institute of Complex Adaptive Matter (ICAM). We acknowledge computational support from the Ohio Supercomputer Center. We would like to thank Karina Jimenez-Garcia and Ian Spielman for providing their experimental data. We thank Rajiv Singh for helpful discussions. NR 48 TC 24 Z9 24 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 8 PY 2011 VL 84 IS 5 AR 054302 DI 10.1103/PhysRevB.84.054302 PG 13 WC Physics, Condensed Matter SC Physics GA 803YH UT WOS:000293618500005 ER PT J AU Carroll, DS Emerson, GL Li, Y Sammons, S Olson, V Frace, M Nakazawa, Y Czerny, CP Tryland, M Kolodziejek, J Nowotny, N Olsen-Rasmussen, M Khristova, M Govil, D Karem, K Damon, IK Meyer, H AF Carroll, Darin S. Emerson, Ginny L. Li, Yu Sammons, Scott Olson, Victoria Frace, Michael Nakazawa, Yoshinori Czerny, Claus Peter Tryland, Morten Kolodziejek, Jolanta Nowotny, Norbert Olsen-Rasmussen, Melissa Khristova, Marina Govil, Dhwani Karem, Kevin Damon, Inger K. Meyer, Hermann TI Chasing Jenner's Vaccine: Revisiting Cowpox Virus Classification SO PLOS ONE LA English DT Article ID CELL-SURFACE; ORTHOPOXVIRUSES; GENOME; CAT; SEQUENCES; DIVERSITY; WILDLIFE AB Cowpox virus (CPXV) is described as the source of the first vaccine used to prevent the onset and spread of an infectious disease. It is one of the earliest described members of the genus Orthopoxvirus, which includes the viruses that cause smallpox and monkeypox in humans. Both the historic and current literature describe "cowpox" as a disease with a single etiologic agent. Genotypic data presented herein indicate that CPXV is not a single species, but a composite of several (up to 5) species that can infect cows, humans, and other animals. The practice of naming agents after the host in which the resultant disease manifests obfuscates the true taxonomic relationships of "cowpox" isolates. These data support the elevation of as many as four new species within the traditional "cowpox" group and suggest that both wild and modern vaccine strains of Vaccinia virus are most closely related to CPXV of continental Europe rather than the United Kingdom, the homeland of the vaccine. C1 [Carroll, Darin S.; Emerson, Ginny L.; Li, Yu; Olson, Victoria; Nakazawa, Yoshinori; Karem, Kevin; Damon, Inger K.] Ctr Dis Control & Prevent, Poxvirus & Rabies Branch, Atlanta, GA 30333 USA. [Sammons, Scott; Frace, Michael; Olsen-Rasmussen, Melissa; Khristova, Marina; Govil, Dhwani] Ctr Dis Control & Prevent, Biotechnol Core Facil Branch, Atlanta, GA USA. [Nakazawa, Yoshinori] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. [Czerny, Claus Peter] Univ Gottingen, Dept Anim Sci, Div Microbiol & Anim Hyg, Gottingen, Germany. [Tryland, Morten] Norwegian Sch Vet Sci, Sect Arctic Vet Med, Dept Food Safety & Infect Biol, Tromso, Norway. [Tryland, Morten] Genok, Ctr Biosafety, Tromso, Norway. [Kolodziejek, Jolanta; Nowotny, Norbert] Univ Vet Med Vienna, Dept Pathobiol, Zoonoses & Emerging Infect Grp, Vienna, Austria. [Nowotny, Norbert] Sultan Qaboos Univ, Fac Med & Hlth Sci, Dept Microbiol & Immunol, Muscat, Oman. [Meyer, Hermann] Bundeswehr Inst Microbiol, Munich, Germany. RP Carroll, DS (reprint author), Ctr Dis Control & Prevent, Poxvirus & Rabies Branch, Atlanta, GA 30333 USA. EM DCarroll@cdc.gov NR 25 TC 34 Z9 34 U1 3 U2 13 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 8 PY 2011 VL 6 IS 8 AR e23086 DI 10.1371/journal.pone.0023086 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 806AM UT WOS:000293773300018 PM 21858000 ER PT J AU Fujiwara, H Sekiyama, A Mo, SK Allen, JW Yamaguchi, J Funabashi, G Imada, S Metcalf, P Higashiya, A Yabashi, M Tamasaku, K Ishikawa, T Suga, S AF Fujiwara, H. Sekiyama, A. Mo, S. -K. Allen, J. W. Yamaguchi, J. Funabashi, G. Imada, S. Metcalf, P. Higashiya, A. Yabashi, M. Tamasaku, K. Ishikawa, T. Suga, S. TI Evidence for the constancy of U in the Mott transition of V2O3 SO PHYSICAL REVIEW B LA English DT Article ID METAL-INSULATOR-TRANSITION; SYSTEMS; STRESS; ENERGY; SPIN AB We have performed high-resolution hard-x-ray photoemission spectroscopy for the metal-insulator transition (MIT) system (V1-xCrx)(2)O-3 in the paramagnetic metal, paramagnetic insulator, and antiferromagnetic insulator phases. The quality of the spectra enables us to conclude that the on-site Coulomb energy U does not change through the MIT, which eliminates all but one theoretical MIT scenario in this paradigm material. C1 [Fujiwara, H.; Sekiyama, A.; Yamaguchi, J.; Funabashi, G.; Imada, S.; Suga, S.] Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan. [Fujiwara, H.] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany. [Sekiyama, A.; Higashiya, A.; Yabashi, M.; Tamasaku, K.; Ishikawa, T.; Suga, S.] SPring 8 RIKEN, Sayo, Hyogo 6795148, Japan. [Mo, S. -K.; Allen, J. W.] Univ Michigan, Randall Lab Phys, Ann Arbor, MI 48109 USA. [Mo, S. -K.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Mo, S. -K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Metcalf, P.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. [Yabashi, M.] SPring 8 JASRI, Sayo, Hyogo 6795198, Japan. RP Fujiwara, H (reprint author), Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan. RI Ishikawa, Tetsuya/I-4775-2012; Mo, Sung-Kwan/F-3489-2013; Imada, Shin/F-1113-2014; Yabashi, Makina/A-2832-2015; Tamasaku, Kenji/N-7907-2015; Sekiyama, Akira/G-1851-2016 OI Ishikawa, Tetsuya/0000-0002-6906-9909; Mo, Sung-Kwan/0000-0003-0711-8514; Yabashi, Makina/0000-0002-2472-1684; FU Global COE [G10, 20102003]; MEXT [18104007, 18684015, 21740229, 21340101]; JSPS, Japan; US DOE [DE-FG02-07ER46379]; US NSF; DoE; Alexander von Humboldt Foundation FX We thank L. H. Tjeng, I. Nekrasov, K. Haule, and G. Kotliar for fruitful discussions. We express appreciation to S. Komori, M. Obara, Y. Nakatsu, Y. Tomida, and M. Y. Kimura for supporting the measurements. This work was supported in part by a Grant-in-Aid for Global COE (G10), Innovative Areas "Heavy Electrons" (20102003), and Scientific Research (18104007, 18684015, 21740229, and 21340101) from MEXT and JSPS, Japan. Work at UM was supported by the US DOE under Contract No. DE-FG02-07ER46379. S.K.M. is supported by the US NSF and DoE. H.F. thanks the Alexander von Humboldt Foundation for their support. SXPES was performed under the approval of the Japan Synchrotron Radiation Research Institute (2006B1722,2009B1014). NR 33 TC 17 Z9 17 U1 1 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 8 PY 2011 VL 84 IS 7 AR 075117 DI 10.1103/PhysRevB.84.075117 PG 5 WC Physics, Condensed Matter SC Physics GA 803YL UT WOS:000293618900004 ER PT J AU Hawthorn, DG Shen, KM Geck, J Peets, DC Wadati, H Okamoto, J Huang, SW Huang, DJ Lin, HJ Denlinger, JD Liang, RX Bonn, DA Hardy, WN Sawatzky, GA AF Hawthorn, D. G. Shen, K. M. Geck, J. Peets, D. C. Wadati, H. Okamoto, J. Huang, S. -W. Huang, D. J. Lin, H. -J. Denlinger, J. D. Liang, Ruixing Bonn, D. A. Hardy, W. N. Sawatzky, G. A. TI Resonant elastic soft x-ray scattering in oxygen-ordered YBa2Cu3O6+delta SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; T-C SUPERCONDUCTOR; ABSORPTION SPECTROSCOPY; CUPRATE SUPERCONDUCTORS; ELECTRONIC-STRUCTURE; SINGLE-CRYSTALS; MOTT INSULATOR; FERMI-SURFACE; PHASE; HOLES AB Static charge-density-wave (CDW) and spin-density-wave (SDW) order has been convincingly observed in La-based cuprates for some time. However, more recently it has been suggested by quantum oscillation, transport, and thermodynamic measurements that density-wave order is generic to underdoped cuprates and plays a significant role in YBa2Cu3O6+delta (YBCO). We use resonant soft x-ray scattering at the Cu L and O K edges to search for evidence of density-wave order in ortho-II and ortho-VIII oxygen-ordered YBCO. We report a null result-no evidence for static CDW order-in both ortho-II and ortho-VIII ordered YBCO. While this does not rule out static CDW order in the CuO2 planes of YBCO, these measurements place limits on the parameter space (temperature, magnetic field, scattering vector) in which static CDW order may exist. In addition, we present a detailed analysis of the energy and polarization dependence of the ortho-II superstructure Bragg reflection [0.5 0 0] at the Cu L edge. The intensity of this peak, which is due to the valence modulations of Cu in the chain layer, is compared with calculations using atomic scattering form factors deduced from x-ray absorption measurements. The calculated energy and polarization dependence of the scattering intensity is shown to agree very well with the measurement, validating the approach and providing a framework for analyzing future resonant soft x-ray scattering measurements. C1 [Hawthorn, D. G.] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada. [Shen, K. M.] Cornell Univ, Dept Phys, Atom & Solid State Phys Lab, Ithaca, NY 14853 USA. [Geck, J.] Leibniz Inst Solid State & Mat Res IFW Dresden, D-01069 Dresden, Germany. [Peets, D. C.; Wadati, H.; Liang, Ruixing; Bonn, D. A.; Hardy, W. N.; Sawatzky, G. A.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada. [Okamoto, J.; Huang, S. -W.; Huang, D. J.; Lin, H. -J.] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan. [Denlinger, J. D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Hawthorn, DG (reprint author), Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada. RI Sawatzky, George/D-2997-2012; Hawthorn, David/I-6491-2012 OI Hawthorn, David/0000-0002-7002-0416 FU Canadian Institute for Advanced Research; British Columbia Synchrotron Institute; Canada Research Chair; Canada Foundation for Innovation; Natural Sciences and Engineering Research Council of Canada; DFG; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the Canadian Institute for Advanced Research, the British Columbia Synchrotron Institute, a Canada Research Chair (GAS), the Canada Foundation for Innovation, and the Natural Sciences and Engineering Research Council of Canada. J.G. gratefully acknowledges the financial support through the DFG. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 61 TC 26 Z9 26 U1 1 U2 21 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 8 PY 2011 VL 84 IS 7 AR 075125 DI 10.1103/PhysRevB.84.075125 PG 10 WC Physics, Condensed Matter SC Physics GA 803YL UT WOS:000293618900012 ER PT J AU Subbaraman, R Sankaranarayanan, SKRS AF Subbaraman, Ram Sankaranarayanan, Subramanian K. R. S. TI Effect of Ag addition on the thermal characteristics and structural evolution of Ag-Cu-Ni ternary alloy nanoclusters: Atomistic simulation study SO PHYSICAL REVIEW B LA English DT Article ID MOLECULAR-DYNAMICS SIMULATION; SHAPE-CONTROLLED SYNTHESIS; MONTE-CARLO SIMULATIONS; SURFACE SEGREGATION; BIMETALLIC NANOPARTICLES; CATALYST NANOPARTICLES; GOLD NANOPARTICLES; CONTROLLABLE SIZES; PHASE-TRANSITION; CLUSTERS AB Atomic-scale compositional variation in Ag contents across Ag-Cu-Ni alloy upon being subjected to repeated annealing cycles is shown to result in significant differences in the structure and the thermal stability of ternary alloy nanoclusters. Molecular dynamics (MD) simulations employing quantum Sutton-Chen potentials were used to investigate the effect of Ag addition on the thermal characteristics of Ag-Cu-Ni ternary alloy nanoclusters of 4-nm diameter. The initial configurations were generated using Monte Carlo simulations and comprise surface-segregated structures with the lowest surface energy component, Ag, occupying low coordination sites such as corners, edges, and faces. A compositional oscillation between the Cu and Ni atoms was observed for layers beneath the surface which transitions into a bulk alloy composition at the core. We find that the Cu-Ni binary alloys on being subjected to annealing schedules demonstrated an increase in thermal stability, as indicated by the increase in melting points. The annealed configurations of the Ag-Cu-Ni ternary alloy, on the other hand, showed a nonmonotonic behavior. For Ag compositions less than 20%, we observe an initial increase in melting point followed by a decrease in the third cycle. For higher Ag compositions (>20%), we observe a decrease in melting point with annealing; the rate of decrease is strongly correlated to the Ag composition in the alloy. Cu-Ni nanoclusters having 50% Cu showed a transition from an initial icosahedral to a cuboctahedron-like structure whereas Ag-rich Ag-Cu-Ni ternary alloys showed a transition from icosahedral to an amorphous structure. Compositional analysis based on radial distribution functions and density profiles indicate that these transitions were dependent on the distribution of the alloying elements in the nanocluster. Calculated root-mean-square displacements and diffusion coefficients indicate that the rate of mixing of Ag increases with Ag content in the Ag-Cu-Ni ternary alloy. Ternary alloys show heterogeneous melting during the first heating cycle followed by a bulk-like melting during the subsequent annealing cycles. The simulation results are consistent with available experimental studies. C1 [Subbaraman, Ram] Argonne Natl Lab, Dept Nucl Engn, Argonne, IL 60439 USA. [Sankaranarayanan, Subramanian K. R. S.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Subbaraman, R (reprint author), Argonne Natl Lab, Dept Nucl Engn, 9700 S Cass Ave, Argonne, IL 60439 USA. EM skrssank@anl.gov FU US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; ANL FX Use of the Center for Nanoscale Materials was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors also thank the computational facilities provided by CNM-ANL and the University of South Florida. R. S would also like acknowledge the ANL postdoctoral fellowship for support. NR 75 TC 4 Z9 4 U1 2 U2 29 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 8 PY 2011 VL 84 IS 7 AR 075434 DI 10.1103/PhysRevB.84.075434 PG 16 WC Physics, Condensed Matter SC Physics GA 803YL UT WOS:000293618900019 ER PT J AU Wong, BM Ye, SH AF Wong, Bryan M. Ye, Simon H. TI Self-assembled cyclic oligothiophene nanotubes: Electronic properties from a dispersion-corrected hybrid functional SO PHYSICAL REVIEW B LA English DT Article ID WALL CARBON NANOTUBES; AB-INITIO CALCULATION; BAND-GAPS; NONCOVALENT INTERACTIONS; BASIS-SET; MACROCYCLIC OLIGOTHIOPHENES; AROMATIC-HYDROCARBONS; DFT-D; DENSITY; ENERGIES AB The band structure and size scaling of electronic properties in self-assembled cyclic oligothiophene nanotubes are investigated using density functional theory. In these unique tubular aggregates, the pi-pi stacking interactions between adjacent monomers provide pathways for charge transport and energy migration along the periodic one-dimensional nanostructure. In order to simultaneously describe both the pi-pi stacking interactions and the global electronic band structure of these nanotubes, we utilize a dispersion-corrected Becke three-parameter Lee-Yang-Parr-D (B3LYP-D) hybrid functional in conjunction with all-electron basis sets and one-dimensional periodic boundary conditions. Based on our B3LYP-D calculations, we present simple analytical formulae for estimating the fundamental band gaps of these unique nanotubes as a function of size and diameter. Our results on these molecular nanostructures indicate that all of the oligothiophene nanotubes are direct-gap semiconductors with band gaps ranging from 0.9 to 3.3 eV, depending on tube diameter and oligothiophene orientation. These nanotubes have cohesive energies of up to 2.43 eV per monomer, indicating future potential use in organic electronic devices due to their tunable electronic band structure and high structural stability. C1 [Wong, Bryan M.] Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA. [Ye, Simon H.] Stanford Univ, Dept Chem, Stanford, CA 94309 USA. RP Wong, BM (reprint author), Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA. EM bmwong@sandia.gov RI Wong, Bryan/B-1663-2009 OI Wong, Bryan/0000-0002-3477-8043 FU National Science Foundation through TeraGrid resources [TG-CHE1000066N]; Laboratory Directed Research and Development (LDRD) at Sandia National Laboratories; United States Department of Energy [DE-AC04-94AL85000] FX We acknowledge helpful discussions with Andrew L. Vance. This research was supported in part by the National Science Foundation through TeraGrid resources (Grant No. TG-CHE1000066N) provided by the National Center for Supercomputing Applications. Funding for this effort was provided by the Laboratory Directed Research and Development (LDRD) program at Sandia National Laboratories, a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94AL85000. NR 88 TC 22 Z9 22 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD AUG 8 PY 2011 VL 84 IS 7 AR 075115 DI 10.1103/PhysRevB.84.075115 PG 9 WC Physics, Condensed Matter SC Physics GA 803YL UT WOS:000293618900002 ER PT J AU Kachru, S Kallosh, R Shmakova, M AF Kachru, Shamit Kallosh, Renata Shmakova, Marina TI Generalized attractor points in gauged supergravity SO PHYSICAL REVIEW D LA English DT Article ID EXTREMAL BLACK-HOLES; N=2 SUPERGRAVITY; SYMMETRIES; SPACE AB The attractor mechanism governs the near-horizon geometry of extremal black holes in ungauged four-dimensional N = 2 supergravity theories and in Calabi-Yau compactifications of string theory. In this paper, we study a natural generalization of this mechanism to solutions of arbitrary 4D N = 2 gauged supergravities. We define generalized attractor points as solutions of an ansatz which reduces the Einstein, gauge field, and scalar equations of motion to algebraic equations. The simplest generalized attractor geometries are characterized by nonvanishing constant anholonomy coefficients in an orthonormal frame. Basic examples include Lifshitz and Schrodinger solutions, as well as anti-de Sitter and de Sitter vacua. There is a generalized attractor potential whose critical points are the attractor points, and its extremization explains the algebraic nature of the equations governing both supersymmetric and nonsupersymmetric attractors. C1 [Kachru, Shamit; Kallosh, Renata] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Kachru, Shamit; Kallosh, Renata] Stanford Univ, SITP, Stanford, CA 94305 USA. [Kachru, Shamit] SLAC, Dept Particle Phys & Astrophys, Menlo Pk, CA 94309 USA. [Shmakova, Marina] Stanford Univ, SLAC, Kavli Inst Particle Astrophys & Cosmol, Menlo Pk, CA 94309 USA. RP Kachru, S (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA. EM skachru@stanford.edu; kallosh@stanford.edu; shmakova@slac.stanford.edu NR 56 TC 17 Z9 17 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 8 PY 2011 VL 84 IS 4 AR 046003 DI 10.1103/PhysRevD.84.046003 PG 13 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 803YW UT WOS:000293620100009 ER PT J AU Iida, K Kofu, M Katayama, N Lee, J Kajimoto, R Inamura, Y Nakamura, M Arai, M Yoshida, Y Fujita, M Yamada, K Lee, SH AF Iida, K. Kofu, M. Katayama, N. Lee, J. Kajimoto, R. Inamura, Y. Nakamura, M. Arai, M. Yoshida, Y. Fujita, M. Yamada, K. Lee, S. -H. TI Inelastic neutron scattering study of the magnetic fluctuations in Sr2RuO4 SO PHYSICAL REVIEW B LA English DT Article ID SPIN-TRIPLET SUPERCONDUCTIVITY; NORMAL-STATE; CRYSTAL-GROWTH; FERMI-SURFACE; EXCHANGE; BEHAVIOR AB By performing time-of-flight neutron scattering measurements on a large sample of single crystals of Sr2RuO4, we studied the detailed structure of the imaginary part of the dynamic spin susceptibility over a wide range of phase space. In the normal state at T = 5 K, strong incommensurate (IC) peaks were clearly observed around Q(c) = (0.3, 0.3) up to at least (h) over bar omega = 80 meV. In addition, our data also show strong magnetic fluctuations that exist on the ridges connecting the IC peaks around the (pi, pi) point rather than around the Gamma point. Our results are consistent with the semi-mean-field random phase approximation calculation for a two-dimensional Fermi liquid with a characteristic energy of 5.0 meV. Furthermore, the IC fluctuations were observed even at room temperature. C1 [Iida, K.; Kofu, M.; Katayama, N.; Lee, J.; Lee, S. -H.] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA. [Lee, J.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Kajimoto, R.; Inamura, Y.; Nakamura, M.; Arai, M.] J PARC Ctr, Mat & Life Sci Div, Tokai, Ibaraki 3191195, Japan. [Yoshida, Y.] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan. [Fujita, M.; Yamada, K.] Tohoku Univ, Adv Inst Mat Res, WPI Res Ctr, Sendai, Miyagi 9808577, Japan. RP Iida, K (reprint author), Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA. EM shlee@virginia.edu RI Yamada, Kazuyoshi/C-2728-2009; Fujita, Masaki/D-8430-2013; Lee, Jooseop/A-5631-2016 OI Lee, Jooseop/0000-0002-4413-5412 FU US NSF [DMR-0903977] FX We thank Y.-B. Kim and I. Mazin for helpful discussions and Y. Qiu for his help analyzing the data. Research at the University of Virginia was supported by the US NSF under Grant No. DMR-0903977. Proposal numbers of the experiments in J-PARC are 2009A0005 and 2010A0005. NR 38 TC 10 Z9 10 U1 3 U2 23 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 8 PY 2011 VL 84 IS 6 AR 060402 DI 10.1103/PhysRevB.84.060402 PG 4 WC Physics, Condensed Matter SC Physics GA 803YJ UT WOS:000293618700001 ER PT J AU Benmore, CJ Weber, JKR AF Benmore, C. J. Weber, J. K. R. TI Amorphization of Molecular Liquids of Pharmaceutical Drugs by Acoustic Levitation SO PHYSICAL REVIEW X LA English DT Article ID NEUTRON-DIFFRACTION; AQUEOUS-SOLUTIONS; CRYSTAL-GROWTH; IBUPROFEN; SOLIDS; STATE; CRYSTALLIZATION; STABILIZATION; FORMULATIONS; POLYMORPHS AB It is demonstrated that acoustic levitation is able to produce amorphous forms from a variety of organic molecular compounds with different glass forming abilities. This can lead to enhanced solubility for pharmaceutical applications. High-energy x-ray experiments show that several viscous gels form from saturated pharmaceutical drug solutions after 10-20 min of levitation at room temperature, most of which can be frozen in solid form. Laser heating of ultrasonically levitated drugs can also result in the vitrification of molecular liquids, which is not attainable using conventional amorphization methods. C1 [Benmore, C. J.; Weber, J. K. R.] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Argonne, IL 60439 USA. RP Benmore, CJ (reprint author), Argonne Natl Lab, Xray Sci Div, Adv Photon Source, 9700 S Cass Ave, Argonne, IL 60439 USA. OI Benmore, Chris/0000-0001-7007-7749 FU U.S. Department of Energy, Basic Energy Sciences, Office of Science [DE-AC02-06CH11357] FX This work is supported by the U.S. Department of Energy, Basic Energy Sciences, Office of Science, under Contract No. DE-AC02-06CH11357. Professor S. Byrn is thanked for useful discussions and initiating the work on lidocaine. Professor L. Taylor is thanked for a preprint of Ref. [15]. NR 36 TC 17 Z9 19 U1 3 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2160-3308 J9 PHYS REV X JI Phys. Rev. X PD AUG 8 PY 2011 VL 1 IS 1 AR 011004 DI 10.1103/PhysRevX.1.011004 PG 7 WC Physics, Multidisciplinary SC Physics GA 029OH UT WOS:000310504700004 ER PT J AU Hanson, DE AF Hanson, David E. TI The molecular kink paradigm for rubber elasticity: Numerical simulations of explicit polyisoprene networks at low to moderate tensile strains SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID CONCENTRATED POLYMER SYSTEMS; RETRACTION; DYNAMICS; DEFORMATION; MOTION AB Based on recent molecular dynamics and ab initio simulations of small isoprene molecules, we propose a new ansatz for rubber elasticity. We envision a network chain as a series of independent molecular kinks, each comprised of a small number of backbone units, and the strain as being imposed along the contour of the chain. We treat chain extension in three distinct force regimes: (Ia) near zero strain, where we assume that the chain is extended within a well defined tube, with all of the kinks participating simultaneously as entropic elastic springs, (II) when the chain becomes sensibly straight, giving rise to a purely enthalpic stretching force (until bond rupture occurs) and, (Ib) a linear entropic regime, between regimes Ia and II, in which a force limit is imposed by tube deformation. In this intermediate regime, the molecular kinks are assumed to be gradually straightened until the chain becomes a series of straight segments between entanglements. We assume that there exists a tube deformation tension limit that is inversely proportional to the chain path tortuosity. Here we report the results of numerical simulations of explicit three-dimensional, periodic, polyisoprene networks, using these extension-only force models. At low strain, crosslink nodes are moved affinely, up to an arbitrary node force limit. Above this limit, non-affine motion of the nodes is allowed to relax unbalanced chain forces. Our simulation results are in good agreement with tensile stress vs. strain experiments. (c) 2011 American Institute of Physics. [doi: 10.1063/1.3622487] C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Hanson, DE (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM deh@lanl.gov FU U.S. Department of Energy [DE-AC52-06NA25396] FX This work was performed under the auspices of Los Alamos National Laboratory, which is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. NR 27 TC 3 Z9 3 U1 1 U2 9 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 7 PY 2011 VL 135 IS 5 AR 054902 DI 10.1063/1.3622487 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 803XX UT WOS:000293617500046 PM 21823727 ER PT J AU Cappa, CD Che, DL Kessler, SH Kroll, JH Wilson, KR AF Cappa, Christopher D. Che, Daphne L. Kessler, Sean H. Kroll, Jesse H. Wilson, Kevin R. TI Variations in organic aerosol optical and hygroscopic properties upon heterogeneous OH oxidation SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID SINGLE-PARAMETER REPRESENTATION; CONDENSATION NUCLEUS ACTIVITY; MASS-SPECTROMETRY; RELATIVE-HUMIDITY; AMBIENT AEROSOLS; SOLUBLE ORGANICS; REFRACTIVE-INDEX; ALPHA-PINENE; CAVITY RING; SECONDARY AB Measurements of the evolution of organic aerosol extinction cross sections (sigma(ext)) and subsaturated hygroscopicity upon heterogeneous OH oxidation are reported for two model compounds, squalane (a C-30 saturated hydrocarbon) and azelaic acid (a C-9 dicarboxylic acid). For both compounds, the sigma(ext) values at 532 nm increase substantially as the particles undergo oxidation, exhibiting a logarithmic increase with OH exposure. The increase in sigma(ext) correlates with both an increase in the particle oxygen to carbon (O:C) atomic ratio and density and a decrease in mean molecular weight. The measurements have been used to calculate the variation with oxidation of the mean polarizability, alpha, of the molecules comprising the particles. The absolute alpha values for the two systems are shown to be related through the variation in the particle chemical composition, specifically the relative abundances of C, O, and H atoms and the mean molecular weight. Unlike sigma(ext), it was found that the evolution of the particle hygroscopicity upon oxidation is quite different for the two model systems considered. Hygroscopicity was quantified by measuring gamma(ext), which is a single-parameter representation of hygroscopicity that describes the increase in extinction upon exposure of the particles to a high-relative humidity environment (here, 75% and 85% RH). For unoxidized squalane, gamma(ext) was zero and only increased slowly as the particles were oxidized by OH radicals. In contrast, gamma(ext) for azelaic acid increased rapidly upon exposure to OH, eventually reaching a plateau at high OH exposures. In general, gamma(ext) appears to vary sigmoidally with O:C, reaching a plateau at high O:C. C1 [Cappa, Christopher D.] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA. [Che, Daphne L.; Wilson, Kevin R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Kessler, Sean H.; Kroll, Jesse H.] MIT, Dept Chem Engn, Cambridge, MA 02139 USA. [Kroll, Jesse H.] MIT, Dept Civil & Environm Engn, Cambridge, MA 02139 USA. RP Cappa, CD (reprint author), Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA. EM cdcappa@ucdavis.edu FU U.S. National Science Foundation [ATM-0837913]; U.S. Department of Energy; Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy [DE-AC02-05CH11231] FX The authors thank Jared Smith for experimental assistance, Dan Murphy and Dan Lack at NOAA/ESRL/CSD for use of the CRD-AES, Doug Worsnop at Aerodyne for use of the HR-ToF-AMS, and Markus Petters at North Carolina State University for useful discussions. This work was funded by the U.S. National Science Foundation (ATM-0837913) and the U.S. Department of Energy. K. R. W. and portions of this work were supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy under contract DE-AC02-05CH11231. NR 55 TC 50 Z9 51 U1 1 U2 57 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X EI 2169-8996 J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD AUG 6 PY 2011 VL 116 AR D15204 DI 10.1029/2011JD015918 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 804MA UT WOS:000293656700001 ER PT J AU Seol, Y Kneafsey, TJ AF Seol, Yongkoo Kneafsey, Timothy J. TI Methane hydrate induced permeability modification for multiphase flow in unsaturated porous media SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH LA English DT Article ID STRATIGRAPHIC TEST WELL; ALASKA NORTH SLOPE; GAS HYDRATE; THERMAL-CONDUCTIVITY; CLATHRATE HYDRATE; MODELS; SAND; DISSOCIATION; STABILITY; SAMPLE AB An experimental study was performed using X-ray computed tomography (CT) scanning to capture three-dimensional (3-D) methane hydrate distributions and potential discrete flow pathways in a sand pack sample. A numerical study was also performed to develop and analyze empirical relations that describe the impacts of hydrate accumulation habits within pore space (e. g., pore filling or grain cementing) on multiphase fluid migration. In the experimental study, water was injected into a hydrate-bearing sand sample that was monitored using an X-ray CT scanner. The CT images were converted into numerical grid elements, providing intrinsic sample data including porosity and phase saturations. The impacts of hydrate accumulation were examined by adapting empirical relations into the flow simulations as additional relations governing the evolution of absolute permeability of hydrate bearing sediment with hydrate deposition. The impacts of pore space hydrate accumulation habits on fluid migration were examined by comparing numerical predictions with experimentally measured water saturation distributions and breakthrough curves. A model case with 3-D heterogeneous initial conditions (hydrate saturation, porosity, and water saturation) and pore body-preferred hydrate accumulations best captured water migration behavior through the hydrate-bearing sample observed in the experiment. In the best matching model, absolute permeability in the hydrate bearing sample does not decrease significantly with increasing hydrate saturation until hydrate saturation reaches about 40%, after which it drops rapidly, and complete blockage of flow through the sample can occur as hydrate accumulations approach 70%. The result highlights the importance of permeability modification due to hydrate accumulation habits when predicting multiphase flow through high-saturation, reservoir quality hydrate-bearing sediments. C1 [Seol, Yongkoo] Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Kneafsey, Timothy J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Seol, Y (reprint author), Natl Energy Technol Lab, Morgantown, WV 26507 USA. EM yongkoo.seol@netl.doe.gov RI Kneafsey, Timothy/H-7412-2014 OI Kneafsey, Timothy/0000-0002-3926-8587 FU Fossil Energy, Office of Oil and Natural Gas, through the National Energy Technology Laboratory of the U.S. Department of Energy [DE-AC02-05CH11231] FX The authors benefited greatly from discussions with Bill Waite, USGS, and Ray Boswell, DOE-NETL, and the technical support from Brian Tennant and Karl Jarvis. T. J. Kneafsey was supported by the Assistant Secretary for Fossil Energy, Office of Oil and Natural Gas, through the National Energy Technology Laboratory of the U.S. Department of Energy under contract DE-AC02-05CH11231. NR 40 TC 10 Z9 10 U1 2 U2 50 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-9313 EI 2169-9356 J9 J GEOPHYS RES-SOL EA JI J. Geophys. Res.-Solid Earth PD AUG 6 PY 2011 VL 116 AR B08102 DI 10.1029/2010JB008040 PG 15 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 804KS UT WOS:000293653300003 ER PT J AU Aziz, RK Dwivedi, B Breitbart, M Edwards, RA AF Aziz, Ramy K. Dwivedi, Bhakti Breitbart, Mya Edwards, Robert A. TI Phage Eco-Locator: a web tool for visualization and analysis of phage genomes in metagenomic data sets SO BMC BIOINFORMATICS LA English DT Meeting Abstract CT 10th Annual UT-ORNL-KBRIN Bioinformatics Summit CY APR 01-03, 2011 CL Univ Memphis, Memphis, TN SP Univ Tennessee (UT), Oak Ridge Natl Lab (ORNL), Kentucky Biomed Res Infrastructure Network (KBRIN) HO Univ Memphis C1 [Aziz, Ramy K.; Edwards, Robert A.] San Diego State Univ, Dept Comp Sci, San Diego, CA 92182 USA. [Aziz, Ramy K.] Cairo Univ, Fac Pharm, Dept Microbiol & Immunol, Cairo, Egypt. [Dwivedi, Bhakti; Breitbart, Mya] Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA. [Edwards, Robert A.] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. EM ramy.aziz@salmonella.org NR 8 TC 1 Z9 1 U1 0 U2 2 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD AUG 5 PY 2011 VL 12 SU 7 AR A9 DI 10.1186/1471-2105-12-S7-A9 PG 2 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 940ZN UT WOS:000303931700010 ER PT J AU Harris, JB Jenkins, DD Reyles, J Rickett, S Utley, JM Howell, EE Baudry, J Hinde, RJ AF Harris, Jason B. Jenkins, David D. Reyles, Jonathan Rickett, Stephanie Utley, Jordan M. Howell, Elizabeth E. Baudry, Jerome Hinde, Robert J. TI Determining anion-quadrupole interactions among protein, DNA, and ligand molecules SO BMC BIOINFORMATICS LA English DT Meeting Abstract CT 10th Annual UT-ORNL-KBRIN Bioinformatics Summit CY APR 01-03, 2011 CL Univ Memphis, Memphis, TN SP Univ Tennessee (UT), Oak Ridge Natl Lab (ORNL), Kentucky Biomed Res Infrastructure Network (KBRIN) HO Univ Memphis C1 [Harris, Jason B.; Reyles, Jonathan; Utley, Jordan M.; Howell, Elizabeth E.; Baudry, Jerome] Univ Tennessee, Grad Sch Genome Sci & Technol, Knoxville, TN 37996 USA. [Jenkins, David D.; Rickett, Stephanie] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. [Howell, Elizabeth E.; Baudry, Jerome] Univ Tennessee, Dept Biochem Cellular & Mol Biol, Knoxville, TN 37996 USA. [Hinde, Robert J.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Harris, Jason B.; Baudry, Jerome] Oak Ridge Natl Lab, Ctr Biophys Mol, Oak Ridge, TN 37831 USA. EM jharri43@utk.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD AUG 5 PY 2011 VL 12 SU 7 AR A5 DI 10.1186/1471-2105-12-S7-A5 PG 1 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 940ZN UT WOS:000303931700006 ER PT J AU Reyles, J Phillips, C AF Reyles, Jonathan Phillips, Charles TI Comparative studies of high-throughput biological graphs SO BMC BIOINFORMATICS LA English DT Meeting Abstract CT 10th Annual UT-ORNL-KBRIN Bioinformatics Summit CY APR 01-03, 2011 CL Univ Memphis, Memphis, TN SP Univ Tennessee (UT), Oak Ridge Natl Lab (ORNL), Kentucky Biomed Res Infrastructure Network (KBRIN) HO Univ Memphis C1 [Reyles, Jonathan] UT ORNL, Grad Sch Genome Sci & Technol, Oak Ridge, TN 37830 USA. [Phillips, Charles] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. EM jreyles@utk.edu NR 4 TC 0 Z9 0 U1 0 U2 0 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD AUG 5 PY 2011 VL 12 SU 7 AR A12 DI 10.1186/1471-2105-12-S7-A12 PG 1 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 940ZN UT WOS:000303931700013 ER PT J AU Huang, B Yu, JJ Wei, SH AF Huang, Bing Yu, Jaejun Wei, Su-Huai TI Strain control of magnetism in graphene decorated by transition-metal atoms SO PHYSICAL REVIEW B LA English DT Article AB We report a strain-controlled tuning of magnetism in graphene decorated by transition-metal (TM) atoms. Our first-principles calculations demonstrate that strain can lead to a sudden change in the magnetic configuration of a TM adatom and the local atomic structure in the surrounding graphene layer. A strong spin-dependent hybridization between TM d and graphene pi orbital states, derived from the orbital selection rule of the local lattice symmetry, is responsible for the determination of the local electronic and magnetic structure. Our results indicate that the strain can be an effective way to control the magnetism of atomic-scale nanostructures, where the reliable control of their magnetic states is a key step for the future spintronic applications. C1 [Huang, Bing; Yu, Jaejun; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Yu, Jaejun] Seoul Natl Univ, Ctr Strongly Correlated Mat Res, Dept Phys & Astron, Seoul 151747, South Korea. RP Huang, B (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. RI Huang, Bing/D-8941-2011 OI Huang, Bing/0000-0001-6735-4637 FU US Department of Energy [DE-AC36-08GO28308]; National Research Foundation of Korea through the ARP [R17-2008-033-01000-0] FX The work at NREL was supported by the US Department of Energy under Contract No. DE-AC36-08GO28308. J.Y. acknowledges the support by the National Research Foundation of Korea through the ARP (No. R17-2008-033-01000-0). NR 26 TC 43 Z9 44 U1 5 U2 51 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 7 AR 075415 DI 10.1103/PhysRevB.84.075415 PG 4 WC Physics, Condensed Matter SC Physics GA 803BP UT WOS:000293555100023 ER PT J AU Park, KT Wu, W Battaile, KP Lovell, S Holyoak, T Lutkenhaus, J AF Park, Kyung-Tae Wu, Wei Battaile, Kevin P. Lovell, Scott Holyoak, Todd Lutkenhaus, Joe TI The Min Oscillator Uses MinD-Dependent Conformational Changes in MinE to Spatially Regulate Cytokinesis SO CELL LA English DT Article ID TOPOLOGICAL SPECIFICITY FACTOR; DIVISION SITE SELECTION; TO-POLE OSCILLATION; ESCHERICHIA-COLI; CELL-DIVISION; PROPER PLACEMENT; MEMBRANE INTERACTION; PATTERN-FORMATION; INHIBITOR MINC; DATA QUALITY AB In E. coli, MinD recruits MinE to the membrane, leading to a coupled oscillation required for spatial regulation of the cytokinetic Z ring. How these proteins interact, however, is not clear because the MinD-binding regions of MinE are sequestered within a six-stranded beta sheet and masked by N-terminal helices. minE mutations that restore interaction between some MinD and MinE mutants were isolated. These mutations alter the MinE structure leading to release of the MinD-binding regions and the N-terminal helices that bind the membrane. Crystallization of MinD-MinE complexes revealed a four-stranded beta sheet MinE dimer with the released beta strands (MinD-binding regions) converted to alpha helices bound to MinD dimers. These results identify the MinD-dependent conformational changes in MinE that convert it from a latent to an active form and lead to a model of how MinE persists at the MinD-membrane surface. C1 [Park, Kyung-Tae; Wu, Wei; Lutkenhaus, Joe] Univ Kansas, Med Ctr, Dept Microbiol Mol Genet & Immunol, Kansas City, KS 66160 USA. [Holyoak, Todd] Univ Kansas, Med Ctr, Dept Biochem & Mol Biol, Kansas City, KS 66160 USA. [Battaile, Kevin P.] APS Argonne Natl Lab, Hauptman Woodward Med Res Inst, IMCA CAT, Sect 17, Argonne, IL 60439 USA. [Lovell, Scott] Univ Kansas, Struct Biol Ctr, Lawrence, KS 66047 USA. RP Lutkenhaus, J (reprint author), Univ Kansas, Med Ctr, Dept Microbiol Mol Genet & Immunol, Kansas City, KS 66160 USA. EM jlutkenh@kumc.edu OI Battaile, Kevin/0000-0003-0833-3259 FU National Institutes of Health [GM29764]; Industrial Macromolecular Crystallography Association; Hauptman-Woodward Medical Research Institute; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; NIH, National Center for Research Resources [P20 RR-17708] FX This work was supported by grant GM29764 from the National Institutes of Health to J.L. We thank members of the lab for discussion and Alex Dajkovic for reading of the manuscript. Use of the IMCA-CAT beamline 17-ID at the Advanced Photon Source was supported by the companies of the Industrial Macromolecular Crystallography Association through a contract with Hauptman-Woodward Medical Research Institute. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. Use of the KU COBRE Protein Structure Laboratory was supported by NIH Grant Number P20 RR-17708 from the National Center for Research Resources. NR 39 TC 56 Z9 57 U1 0 U2 13 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0092-8674 J9 CELL JI Cell PD AUG 5 PY 2011 VL 146 IS 3 BP 396 EP 407 DI 10.1016/j.cell.2011.06.042 PG 12 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 803GT UT WOS:000293570500014 PM 21816275 ER PT J AU Schafgans, AA Pursley, BC LaForge, AD Sefat, AS Mandrus, D Basov, DN AF Schafgans, A. A. Pursley, B. C. LaForge, A. D. Sefat, A. S. Mandrus, D. Basov, D. N. TI Phonon splitting and anomalous enhancement of infrared-active modes in BaFe2As2 SO PHYSICAL REVIEW B LA English DT Article ID IRON PNICTIDES; SPECTROSCOPY AB We present a comprehensive infrared spectroscopic study of lattice dynamics in the pnictide parent compound BaFe2As2. In the tetragonal structural phase, we observe the two degenerate symmetry-allowed in-plane infrared-active phonon modes. Following the structural transition from the tetragonal to the orthorhombic phase, we observe a splitting into four nondegenerate phonon modes and a significant phonon strength enhancement. These detailed data allow us to provide a physical explanation for the anomalous phonon strength enhancement as being the result of anisotropic conductivity due to Hund's coupling. C1 [Schafgans, A. A.; Pursley, B. C.; LaForge, A. D.; Basov, D. N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Sefat, A. S.; Mandrus, D.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Mandrus, D.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. RP Schafgans, AA (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. EM aschafgans@physics.ucsd.edu RI Mandrus, David/H-3090-2014; Sefat, Athena/R-5457-2016 OI Sefat, Athena/0000-0002-5596-3504 FU NSF [1005493]; AFOSR; US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering FX This work was supported by the NSF 1005493 and the AFOSR. D. M. was supported by the US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering. NR 30 TC 22 Z9 22 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 5 AR 052501 DI 10.1103/PhysRevB.84.052501 PG 4 WC Physics, Condensed Matter SC Physics GA 803AW UT WOS:000293553100001 ER PT J AU Song, Q Chow, KH Salman, Z Saadaoui, H Hossain, MD Kiefl, RF Levy, CDP Pearson, MR Parolin, TJ Smadella, M Wang, D Yu, KM Liu, X Furdyna, JK MacFarlane, WA AF Song, Q. Chow, K. H. Salman, Z. Saadaoui, H. Hossain, M. D. Kiefl, R. F. Levy, C. D. P. Pearson, M. R. Parolin, T. J. Smadella, M. Wang, D. Yu, K. M. Liu, X. Furdyna, J. K. MacFarlane, W. A. TI beta-detected NMR of Li in Ga1-xMnxAs SO PHYSICAL REVIEW B LA English DT Article ID SPIN-LATTICE-RELAXATION; HYPERFINE INTERACTIONS; MAGNETIC-PROPERTIES; METALS; SEMICONDUCTORS; GAAS; THIN; FILM; FERROMAGNETISM; TRANSITION AB The magnetic properties of a 180-nm-thick epitaxial film of the dilute magnetic semiconductor Ga1-xMnxAs with x = 0.054 are investigated using beta-detected NMR of low-energy implanted Li-8(+). There is a broad distribution of local magnetic fields in the Ga1-xMnxAs layer, reflecting the magnetic inhomogeneity of the system. The resonance (representing the local magnetic field distribution) is followed as a function of temperature through the ferromagnetic transition. The average hyperfine field at the Li-8 nucleus is measured to be positive and on the order of 150G at low temperature, implying a negative hyperfine coupling of the Li-8 to the delocalized holes and suggesting that the holes are better described by an Mn-derived impurity band. The spin-lattice relaxation of Li-8 shows a remarkably weak feature at the phase transition and no Korringa behavior despite metallic conductivity. No evidence is found of the microscopic magnetic phase separation that has been suggested by some low-energy muon spin-rotation measurements. C1 [Song, Q.; Saadaoui, H.; Hossain, M. D.; Kiefl, R. F.; Smadella, M.; Wang, D.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. [Chow, K. H.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada. [Salman, Z.; Kiefl, R. F.; Levy, C. D. P.; Pearson, M. R.] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Kiefl, R. F.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada. [Parolin, T. J.; MacFarlane, W. A.] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada. [Yu, K. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Liu, X.; Furdyna, J. K.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. RP Song, Q (reprint author), Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. RI Salman, Zaher/A-5696-2008; Yu, Kin Man/J-1399-2012; Saadaoui, Hassan/F-4321-2016 OI Salman, Zaher/0000-0002-3431-8135; Yu, Kin Man/0000-0003-1350-9642; Saadaoui, Hassan/0000-0001-5526-3615 FU Centre of Materials and Molecular Research at TRIUMF; Natural Science and Engineering Research Council of Canada (NSERC); Canadian Institute for Advanced Research (CIFAR); National Science Foundation (US) [DMR06-03762] FX This research is supported by the Centre of Materials and Molecular Research at TRIUMF, the Natural Science and Engineering Research Council of Canada (NSERC), and Canadian Institute for Advanced Research (CIFAR) and National Science Foundation (US) Grant No. DMR06-03762. We thank M. Berciu for useful discussions. NR 66 TC 8 Z9 8 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 5 AR 054414 DI 10.1103/PhysRevB.84.054414 PG 8 WC Physics, Condensed Matter SC Physics GA 803AW UT WOS:000293553100006 ER PT J AU Suh, S Al-Hassanieh, KA Samulon, EC Fisher, IR Brown, SE Batista, CD AF Suh, S. Al-Hassanieh, K. A. Samulon, E. C. Fisher, I. R. Brown, S. E. Batista, C. D. TI Nonuniversal magnetization at the BEC critical field: Application to the spin dimer compound Ba3Mn2O8 SO PHYSICAL REVIEW B LA English DT Article ID BOSE-EINSTEIN CONDENSATION; ANTIFERROMAGNETS AB Ba3Mn2O8 is a hexagonally coordinated Mn5+ S = 1 spin dimer system with small uniaxial single- ion anisotropy. Ba-135,Ba-137 NMR spectroscopy is used to measure the longitudinal (M-l) magnetization in the vicinity of the critical field at H-c1 for the onset of magnetic order for H parallel to c and H perpendicular to c. M-l parallel to(T, H-c1), M-l perpendicular to(T, H-c1) are reproduced by solving a low- energy model for a dilute gas of interacting bosons. C1 [Suh, S.; Brown, S. E.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Al-Hassanieh, K. A.; Batista, C. D.] Los Alamos Natl Lab, Theory Div, Los Alamos, NM 87545 USA. [Samulon, E. C.; Fisher, I. R.] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA. [Samulon, E. C.; Fisher, I. R.] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA. RP Suh, S (reprint author), Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. RI Batista, Cristian/J-8008-2016 FU NSF [DMR-0804625, DMR-0705087]; National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX The authors acknowledge helpful discussions with T. Giamarchi, O. Sushkov, and M. Whangbo. This work was supported in part by the NSF under Grants No. DMR-0804625 (SEB), No. DMR-0705087 (IRF), and by the National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396. NR 18 TC 7 Z9 7 U1 2 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 5 AR 054413 DI 10.1103/PhysRevB.84.054413 PG 5 WC Physics, Condensed Matter SC Physics GA 803AW UT WOS:000293553100005 ER PT J AU Tanatar, MA Reid, JP de Cotret, SR Doiron-Leyraud, N Laliberte, F Hassinger, E Chang, J Kim, H Cho, K Song, YJ Kwon, YS Prozorov, R Taillefer, L AF Tanatar, M. A. Reid, J. -Ph de Cotret, S. Rene Doiron-Leyraud, N. Laliberte, F. Hassinger, E. Chang, J. Kim, H. Cho, K. Song, Yoo Jang Kwon, Yong Seung Prozorov, R. Taillefer, Louis TI Isotropic three-dimensional gap in the iron arsenide superconductor LiFeAs from directional heat transport measurements SO PHYSICAL REVIEW B LA English DT Article ID QUASI-PARTICLE TRANSPORT; D-WAVE SUPERCONDUCTORS; THERMAL-CONDUCTIVITY AB The thermal conductivity kappa of the iron-arsenide superconductor LiFeAs (T-c similar or equal to 18 K) was measured in single crystals at temperatures down to T similar or equal to 50 mK and in magnetic fields up to H = 17 T, very close to the upper critical field H-c2 similar or equal to 18 T. For both directions of the heat current, parallel and perpendicular to the tetragonal c axis, a negligible residual linear term kappa/T is found as T -> 0, showing that there are no zero-energy quasiparticles in the superconducting state. The increase in kappa with magnetic field is the same for both current directions and it follows the dependence expected for an isotropic superconducting gap. These findings show that the superconducting gap in LiFeAs is isotropic in 3D, without nodes or deep minima anywhere on the Fermi surface. We discuss how this behavior of the thermal conductivity may be reconciled with the multiband character of superconductivity in LiFeAs inferred from other measurements. Comparison with other iron-pnictide superconductors suggests that a nodeless isotropic gap is a common feature at optimal doping (maximal T-c). C1 [Tanatar, M. A.; Kim, H.; Cho, K.; Prozorov, R.] Ames Lab, Ames, IA 50011 USA. [Reid, J. -Ph; de Cotret, S. Rene; Doiron-Leyraud, N.; Laliberte, F.; Hassinger, E.; Chang, J.; Taillefer, Louis] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada. [Reid, J. -Ph; de Cotret, S. Rene; Doiron-Leyraud, N.; Laliberte, F.; Hassinger, E.; Chang, J.; Taillefer, Louis] Univ Sherbrooke, RQMP, Sherbrooke, PQ J1K 2R1, Canada. [Kim, H.; Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Song, Yoo Jang; Kwon, Yong Seung] Sungkyunkwan Univ, Dept Phys, Suwon 440746, Gyeonggi Do, South Korea. [Taillefer, Louis] Canadian Inst Adv Res, Toronto, ON, Canada. RP Tanatar, MA (reprint author), Ames Lab, Ames, IA 50011 USA. EM tanatar@ameslab.gov; louis.taillefer@physique.usherbrooke.ca RI Prozorov, Ruslan/A-2487-2008; Chang, Johan/F-1506-2014; Hassinger, Elena/K-5306-2015 OI Prozorov, Ruslan/0000-0002-8088-6096; Chang, Johan/0000-0002-4655-1516; Hassinger, Elena/0000-0003-2911-5277 FU Department of Energy [DE-AC02-07CH11358]; Alfred P. Sloan Foundation; NRF [2010-0007487, 2010-0029136]; MEST; Canadian Institute for Advanced Research; NSERC; CFI; FQRNT; Canada Research Chair FX Work at The Ames Laboratory was supported by the Department of Energy-Basic Energy Sciences under Contract No. DE-AC02-07CH11358. R. P. acknowledges support from the Alfred P. Sloan Foundation. Y. S. K. acknowledges support from Basic Science (Grant No. 2010-0007487) and Mid-career (Grant No. 2010-0029136) Researcher Programs through NRF grant funded by MEST. L. T. acknowledges support from the Canadian Institute for Advanced Research, NSERC, CFI, FQRNT, and a Canada Research Chair. NR 47 TC 34 Z9 34 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 5 AR 054507 DI 10.1103/PhysRevB.84.054507 PG 5 WC Physics, Condensed Matter SC Physics GA 803AW UT WOS:000293553100016 ER PT J AU Dounas-Frazer, DR Tsigutkin, K English, D Budker, D AF Dounas-Frazer, D. R. Tsigutkin, K. English, D. Budker, D. TI Atomic parity violation in J=0 -> 0 two-photon transitions SO PHYSICAL REVIEW A LA English DT Article ID OPTICAL-ACTIVITY; ANAPOLE MOMENT; WEAK-INTERACTIONS; NONCONSERVATION; LIFETIMES; POLARIZABILITIES; YTTERBIUM; THALLIUM; ROTATION; BISMUTH AB We present a method for measuring atomic parity violation in the absence of static external electric and magnetic fields. Such measurements can be achieved by observing the interference of parity-conserving and parity-violating two-photon transition amplitudes between energy eigenstates of zero electronic angular momentum. General expressions for induced two-photon transition amplitudes are derived. The signal-to-noise ratio of a two-photon scheme using the 6s(21) S(0) -> 6s6p (3)P(0) transition in ytterbium is estimated. C1 [Dounas-Frazer, D. R.; Tsigutkin, K.; English, D.; Budker, D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Budker, D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Dounas-Frazer, DR (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM drdf@berkeley.edu RI Budker, Dmitry/F-7580-2016 OI Budker, Dmitry/0000-0002-7356-4814 FU NSF FX The authors acknowledge helpful discussions with M. A. Bouchiat, A. Cingoz, M. Kozlov, N. A. Leefer, and J. Stalnaker. This work has been supported by NSF. NR 44 TC 2 Z9 2 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG 5 PY 2011 VL 84 IS 2 AR 023404 DI 10.1103/PhysRevA.84.023404 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 803AO UT WOS:000293552300009 ER PT J AU Kim, MS Yin, ZP Zhao, LL Morosan, E Kotliar, G Aronson, MC AF Kim, M. S. Yin, Z. P. Zhao, L. L. Morosan, E. Kotliar, G. Aronson, M. C. TI Thermal and electrical transport in the spin density wave antiferromagnet CaFe4As3 SO PHYSICAL REVIEW B LA English DT Article ID THERMOELECTRIC PROPERTIES; CONDUCTIVITY; TRANSITION; SKUTTERUDITES; FE; RU; OS AB We present here measurements of the thermopower, thermal conductivity, and electrical resistivity of the newly reported compound CaFe4As3. Evidence is presented from specific heat and electrical resistivity measurements that a substantial fraction of the Fermi surface survives the onset of spin density wave (SDW) order at the Neel temperature T-N = 88 K and its subsequent commensurate lock-in transition at T-2 = 26.4 K. The specific heat below T-2 consists of a normal metallic component from the ungapped parts of the Fermi surface and a Bardeen-Cooper-Schrieffer (BCS) component that represents the SDW gapping of the Fermi surface. A large Kadowaki-Woods ratio is found at low temperatures, showing that the ground state of CaFe4As3 is a strongly interacting Fermi liquid. The thermal conductivity kappa of CaFe4As3 is an order of magnitude smaller than those of conventional metals at all temperatures, due to a strong phonon scattering. The thermoelectric power S displays a sign change from positive to negative indicating that a partial gap forms at the Fermi level with the onset of commensurate spin density wave order at T-2 = 26.4 K. The small value of the thermopower S and the enhancements of the resistivity due to gap formation and strong quasiparticle interactions offset the low value of the thermal conductivity kappa, yielding only a modest value for the thermoelectric figure of merit Z <= 5 x 10(-6) K-1 in CaFe4As3. The results of ab initio electronic structure calculations are reported, confirming that the sign change in the thermopower at T-2 is reflected by a sign change in the slope of the density of states at the Fermi level. Values for the quasiparticle renormalization Z are derived from measurements of the specific heat and thermopower, indicating that as T -> 0, CaFe4As3 is among the most strongly correlated of the known Fe-based pnictide and chalcogenide systems. C1 [Kim, M. S.; Aronson, M. C.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Kim, M. S.; Yin, Z. P.; Aronson, M. C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Yin, Z. P.; Kotliar, G.] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Zhao, L. L.; Morosan, E.] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA. RP Kim, MS (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RI Yin, Zhiping/G-3949-2012 OI Yin, Zhiping/0000-0001-8679-5251 FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH1886]; DoD MURI "Towards New and Better High Temperature Superconductors"; DoD National Security Science and Engineering Faculty via AFOSR [FA 9550-10-1-0191] FX Work at Brookhaven National Laboratory was carried out under the auspices of the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH1886. Work at Rice University and at Rutgers (G. K.) is supported by DoD MURI "Towards New and Better High Temperature Superconductors." Work at Rutgers (Z.Y.) was carried out under the auspices of a DoD National Security Science and Engineering Faculty Fellowship, via AFOSR Grant No. FA 9550-10-1-0191. NR 37 TC 4 Z9 4 U1 1 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 7 AR 075112 DI 10.1103/PhysRevB.84.075112 PG 7 WC Physics, Condensed Matter SC Physics GA 803BP UT WOS:000293555100003 ER PT J AU Kralj, M Pletikosic, I Petrovic, M Pervan, P Milun, M N'Diaye, AT Busse, C Michely, T Fujii, J Vobornik, I AF Kralj, Marko Pletikosic, Ivo Petrovic, Marin Pervan, Petar Milun, Milorad N'Diaye, Alpha T. Busse, Carsten Michely, Thomas Fujii, Jun Vobornik, Ivana TI Graphene on Ir(111) characterized by angle-resolved photoemission SO PHYSICAL REVIEW B LA English DT Article ID EPITAXIAL GRAPHENE; SILICON-CARBIDE; GRAPHITE; FILMS; CARBON; RUTHENIUM; SURFACE; GAS AB Angle-resolved photoelectron spectroscopy (ARPES) is extensively used to characterize the dependence of the electronic structure of graphene on Ir(111) on the preparation process. ARPES findings reveal that temperature-programmed growth alone or in combination with chemical vapor deposition leads to graphene displaying sharp electronic bands. The photoemission intensity of the Dirac cone is monitored as a function of the increasing graphene area. Electronic features of the moire superstructure present in the system, namely, minigaps and replica bands are examined and used as robust features to evaluate graphene uniformity. The overall dispersion of the pi band is analyzed. Finally, by the variation of photon energy, relative changes of the pi and sigma band intensities are demonstrated. C1 [Kralj, Marko; Pletikosic, Ivo; Petrovic, Marin; Pervan, Petar; Milun, Milorad] Inst Fiziku, HR-10000 Zagreb, Croatia. [N'Diaye, Alpha T.; Busse, Carsten; Michely, Thomas] Univ Cologne, Inst Phys 2, DE-50937 Cologne, Germany. [N'Diaye, Alpha T.] Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA. [Fujii, Jun; Vobornik, Ivana] TASC Lab, CNR IOM, IT-34149 Trieste, Italy. RP Kralj, M (reprint author), Inst Fiziku, Bijenicka 46, HR-10000 Zagreb, Croatia. EM mkralj@ifs.hr RI Pervan, Petar/F-8142-2010; Busse, Carsten/A-7485-2008; Pletikosic, Ivo/A-5683-2010; Milun, Milorad/A-3420-2010; Petrovic, Marin/N-2473-2013; Vobornik, Ivana/B-9463-2015; Kralj, Marko/A-8232-2008; Vobornik, Ivana/A-7461-2011; OI Pervan, Petar/0000-0002-0273-2737; Busse, Carsten/0000-0001-5522-0578; Pletikosic, Ivo/0000-0003-4697-8912; Petrovic, Marin/0000-0002-2234-1207; Kralj, Marko/0000-0002-9786-3130; Vobornik, Ivana/0000-0001-9957-3535; Jun, Fujii/0000-0003-3208-802X FU DAAD-MZOS; UKF [66/10]; MZOS [035-0352828-2840]; DFG [Bu 2197/2-1]; CNR-IOM FX We gratefully acknowledge financial supports by the DAAD-MZOS via the project "Electronic properties of graphene-cluster hybrids", the UKF by the grant No. 66/10, the MZOS (project No. 035-0352828-2840), the DFG (grant No. Bu 2197/2-1) as well as the support by the CNR-IOM. NR 47 TC 55 Z9 55 U1 1 U2 72 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 7 AR 075427 DI 10.1103/PhysRevB.84.075427 PG 8 WC Physics, Condensed Matter SC Physics GA 803BP UT WOS:000293555100020 ER PT J AU Ma, R Zhu, L Sheng, L Liu, M Sheng, DN AF Ma, R. Zhu, L. Sheng, L. Liu, M. Sheng, D. N. TI Thermoelectric and thermal transport in bilayer graphene systems SO PHYSICAL REVIEW B LA English DT Article ID HIGH MAGNETIC-FIELD; INVERSION LAYER; GRAPHITE AB We numerically study the disorder effect on the thermoelectric and thermal transport in bilayer graphene under a strong perpendicular magnetic field. In the unbiased case, we find that the thermoelectric transport has similar properties as in monolayer graphene, i.e., the Nernst signal has a peak at the central Landau level (LL) with a height of the order of k(B)/e and changes sign near other LLs, while the thermopower has an opposite behavior. We attribute this to the coexistence of particle and hole LLs around the Dirac point. When a finite interlayer bias is applied and a band gap is opened, it is found that the transport properties are consistent with those of a band insulator. We further study the thermal transport from electronic origin and verify the validity of the generalized Weidemann-Franz law. C1 [Ma, R.] Nanjing Univ Informat Sci & Technol, Fac Math & Phys, Nanjing 210044, Peoples R China. [Ma, R.; Sheng, D. N.] Calif State Univ Northridge, Dept Phys & Astron, Northridge, CA 91330 USA. [Zhu, L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Zhu, L.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Sheng, L.] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China. [Sheng, L.] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China. [Liu, M.] Southeast Univ, Dept Phys, Nanjing 210096, Peoples R China. RP Ma, R (reprint author), Nanjing Univ Informat Sci & Technol, Fac Math & Phys, Nanjing 210044, Peoples R China. FU DOE Office of Basic Energy Sciences [DE-FG02-06ER46305]; US DOE; NSF [DMR-0906816, DMR-0958596]; Scientific Research Foundation of Nanjing University of Information and Technology of China [20100401]; Princeton MRSEC [DMR-0819860]; NSFC [10874066]; National Basic Research Program of China [2007CB925104, 2009CB929504] FX This work is supported by the DOE Office of Basic Energy Sciences under Grant DE-FG02-06ER46305 (DNS), the US DOE through the LDRD program at LANL (LZ), the NSF Grant DMR-0906816 (RM), and the Scientific Research Foundation of Nanjing University of Information and Technology of China under Grant No. 20100401 (RM). We also thank partial support from Princeton MRSEC Grant DMR-0819860, the NSF instrument grant DMR-0958596 (DNS), the NSFC Grant No. 10874066, the National Basic Research Program of China under Grant Nos. 2007CB925104 and 2009CB929504 (LS). NR 36 TC 14 Z9 14 U1 4 U2 32 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD AUG 5 PY 2011 VL 84 IS 7 AR 075420 DI 10.1103/PhysRevB.84.075420 PG 8 WC Physics, Condensed Matter SC Physics GA 803BP UT WOS:000293555100013 ER PT J AU Wong, CY AF Wong, Cheuk-Yin TI Momentum-kick model description of the ridge in Delta phi-Delta eta correlations in pp collisions at 7 TeV SO PHYSICAL REVIEW C LA English DT Article ID RAPIDITY; STAR; SCATTERING AB The near-side ridge structure in the Delta phi-Delta eta correlation observed by the CMS Collaboration for pp collisions at 7 TeV at the Large Hadron Collider can be explained by the momentum kick model in which the ridge particles are medium partons that suffer a collision with the jet and acquire a momentum kick along the jet direction. Similar to the early medium parton momentum distribution obtained in previous analysis for nucleus-nucleus collisions at root(NN)-N-S = 0.2 TeV, the early medium parton momentum distribution in pp collisions at 7 TeV exhibits a rapidity plateau as arising from particle production in a flux tube. C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. RP Wong, CY (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. FU Division of Nuclear Physics, US Department of Energy FX The authors thank Drs. Vince Cianciolo and R. L. Ray for helpful discussions. This research was supported in part by the Division of Nuclear Physics, US Department of Energy. NR 90 TC 21 Z9 21 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD AUG 5 PY 2011 VL 84 IS 2 AR 024901 DI 10.1103/PhysRevC.84.024901 PG 13 WC Physics, Nuclear SC Physics GA 803BU UT WOS:000293555700004 ER PT J AU McFarland, JA Greenough, JA Ranjan, D AF McFarland, Jacob A. Greenough, Jeffrey A. Ranjan, Devesh TI Computational parametric study of a Richtmyer-Meshkov instability for an inclined interface SO PHYSICAL REVIEW E LA English DT Article ID FAST GAS INTERFACE; SHOCK-WAVES; RAYLEIGH-TAYLOR; REFINEMENT; STABILITY; GROWTH; FLUIDS; MODEL AB A computational study of the Richtmyer-Meshkov instability for an inclined interface is presented. The study covers experiments to be performed in the Texas A&M University inclined shock tube facility. Incident shock wave Mach numbers from 1.2 to 2.5, inclination angles from 30 degrees. to 60 degrees., and gas pair Atwood numbers of similar to 0.67 and similar to 0.95 are used in this parametric study containing 15 unique combinations of these parameters. Qualitative results are examined through a time series of density plots for multiple combinations of these parameters, and the qualitative effects of each of the parameters are discussed. Pressure, density, and vorticity fields are presented in animations available online to supplement the discussion of the qualitative results. These density plots show the evolution of two main regions in the flow field: a mixing region containing driver and test gas that is dominated by large vortical structures, and a more homogeneous region of unmixed fluid which can separate away from the mixing region in some cases. The interface mixing width is determined for various combinations of the parameters listed at the beginning of the Abstract. A scaling method for the mixing width is proposed using the interface geometry and wave velocities calculated using one-dimensional gas dynamic equations. This model uses the transmitted wave velocity for the characteristic velocity and an initial offset time based on the travel time of strong reflected waves. It is compared to an adapted Richtmyer impulsive model scaling and shown to scale the initial mixing width growth rate more effectively for fixed Atwood number. C1 [McFarland, Jacob A.; Ranjan, Devesh] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. [Greenough, Jeffrey A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP McFarland, JA (reprint author), Texas A&M Univ, Dept Mech Engn, 3123 TAMU, College Stn, TX 77843 USA. EM dranjan@tamu.edu OI Ranjan, Devesh/0000-0002-1231-9313 FU US Department of Energy, Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The authors would like to thank the anonymous reviewers for their valuable comments and suggestions to improve the quality of the paper. J.A.M. would like to thank Robert Morgan and Chris Weber for the consultation, advice and support while this research was conducted. He also thanks Prof. Riccardo Bonazza for his advice and helpful discussion of the work presented in this paper. Additionally this work could not have been performed without the support of the High Energy Density Physics Summer Student Program which provided J.A.M. with the opportunity to work with highly knowledgeable and helpful employees of LLNL. Finally, this work was performed under the auspices of the US Department of Energy, Lawrence Livermore National Laboratory, under Contract No. DE-AC52-07NA27344. NR 37 TC 13 Z9 13 U1 0 U2 13 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 EI 1550-2376 J9 PHYS REV E JI Phys. Rev. E PD AUG 5 PY 2011 VL 84 IS 2 AR 026303 DI 10.1103/PhysRevE.84.026303 PN 2 PG 11 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 803DH UT WOS:000293560900007 PM 21929086 ER PT J AU Sasa, LA Yearley, EJ Jablin, MS Gilbertson, RD Lavine, AS Majewski, J Hjelm, RP AF Sasa, Leslie A. Yearley, Eric J. Jablin, Michael S. Gilbertson, Robert D. Lavine, Adrienne S. Majewski, Jaroslaw Hjelm, Rex P. TI Shear-induced metastable states of end-grafted polystyrene SO PHYSICAL REVIEW E LA English DT Article ID NEUTRON REFLECTIVITY; POLYMER BRUSHES; DENSITY PROFILES; GOOD SOLVENT; LAYERS; ADSORPTION; SCATTERING; INTERFACE; SURFACE; SLIPPAGE AB The in situ molecular scale response of end-grafted polystyrene to shear against a deuterated polystyrene melt was investigated with neutron reflectometry. The derived grafted polystyrene density profiles showed that the grafted polystyrene was retained on the quartz wafer during the measurements. The profiles suggested that the end-grafted polystyrene response to shear results in a series of metastable states, rather than equilibrium states assumed in the current theory. Except for some possible extension and/or contraction of the grafted polystyrene with shear, there was no obvious correlation between the grafted polymer structure and the shear thinning behavior observed in these samples. C1 [Sasa, Leslie A.; Yearley, Eric J.; Jablin, Michael S.; Majewski, Jaroslaw; Hjelm, Rex P.] Los Alamos Natl Lab, Los Alamos Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Sasa, Leslie A.; Lavine, Adrienne S.] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA. [Gilbertson, Robert D.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA. RP Sasa, LA (reprint author), Los Alamos Natl Lab, Los Alamos Neutron Scattering Ctr, Los Alamos, NM 87545 USA. EM hjelm@lanl.gov RI Lujan Center, LANL/G-4896-2012; Lavine, Adrienne/B-6074-2013 OI Lavine, Adrienne/0000-0002-5580-7608 FU National Physical Science Consortium; Los Alamos National Laboratory Institute for Multiscale Materials Studies; Department of Energy's Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396] FX The authors thank Dr. Debra A. Wrobleski for the determination of the molecular weight distribution of the polystyrene. The authors would also like to thank Cynthia Welch for her invaluable assistance with this project. L. A. S. would like to gratefully acknowledge the National Physical Science Consortium and the Los Alamos National Laboratory Institute for Multiscale Materials Studies for their financial assistance. This work was supported by the use of the Lujan Neutron Scattering Center at LANSCE, which is funded by the Department of Energy's Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. NR 43 TC 1 Z9 1 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0045 EI 2470-0053 J9 PHYS REV E JI Phys. Rev. E PD AUG 5 PY 2011 VL 84 IS 2 AR 021803 DI 10.1103/PhysRevE.84.021803 PN 1 PG 6 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 803CS UT WOS:000293559200010 PM 21929011 ER PT J AU Eastwood, DC Floudas, D Binder, M Majcherczyk, A Schneider, P Aerts, A Asiegbu, FO Baker, SE Barry, K Bendiksby, M Blumentritt, M Coutinho, PM Cullen, D de Vries, RP Gathman, A Goodell, B Henrissat, B Ihrmark, K Kauserud, H Kohler, A LaButti, K Lapidus, A Lavin, JL Lee, YH Lindquist, E Lilly, W Lucas, S Morin, E Murat, C Oguiza, JA Park, J Pisabarro, AG Riley, R Rosling, A Salamov, A Schmidt, O Schmutz, J Skrede, I Stenlid, J Wiebenga, A Xie, XF Kues, U Hibbett, DS Hoffmeister, D Hogberg, N Martin, F Grigoriev, IV Watkinson, SC AF Eastwood, Daniel C. Floudas, Dimitrios Binder, Manfred Majcherczyk, Andrzej Schneider, Patrick Aerts, Andrea Asiegbu, Fred O. Baker, Scott E. Barry, Kerrie Bendiksby, Mika Blumentritt, Melanie Coutinho, Pedro M. Cullen, Dan de Vries, Ronald P. Gathman, Allen Goodell, Barry Henrissat, Bernard Ihrmark, Katarina Kauserud, Havard Kohler, Annegret LaButti, Kurt Lapidus, Alla Lavin, Jose L. Lee, Yong-Hwan Lindquist, Erika Lilly, Walt Lucas, Susan Morin, Emmanuelle Murat, Claude Oguiza, Jose A. Park, Jongsun Pisabarro, Antonio G. Riley, Robert Rosling, Anna Salamov, Asaf Schmidt, Olaf Schmutz, Jeremy Skrede, Inger Stenlid, Jan Wiebenga, Ad Xie, Xinfeng Kuees, Ursula Hibbett, David S. Hoffmeister, Dirk Hogberg, Nils Martin, Francis Grigoriev, Igor V. Watkinson, Sarah C. TI The Plant Cell Wall-Decomposing Machinery Underlies the Functional Diversity of Forest Fungi SO SCIENCE LA English DT Article ID SERPULA-LACRYMANS; DECAY FUNGI; WOOD; GENOME; MECHANISMS; DIVERSIFICATION; CONVERSION; SYMBIOSIS; LITTER AB Brown rot decay removes cellulose and hemicellulose from wood-residual lignin contributing up to 30% of forest soil carbon-and is derived from an ancestral white rot saprotrophy in which both lignin and cellulose are decomposed. Comparative and functional genomics of the "dry rot" fungus Serpula lacrymans, derived from forest ancestors, demonstrated that the evolution of both ectomycorrhizal biotrophy and brown rot saprotrophy were accompanied by reductions and losses in specific protein families, suggesting adaptation to an intercellular interaction with plant tissue. Transcriptome and proteome analysis also identified differences in wood decomposition in S. lacrymans relative to the brown rot Postia placenta. Furthermore, fungal nutritional mode diversification suggests that the boreal forest biome originated via genetic coevolution of above- and below-ground biota. C1 [Eastwood, Daniel C.] Univ Swansea, Coll Sci, Swansea SA2 8PP, W Glam, Wales. [Floudas, Dimitrios; Binder, Manfred; Hibbett, David S.] Clark Univ, Dept Biol, Worcester, MA 01610 USA. [Majcherczyk, Andrzej; Kuees, Ursula] Univ Gottingen, Busgen Inst, D-37077 Gottingen, Germany. [Schneider, Patrick; Hoffmeister, Dirk] Univ Jena, Hans Knoll Inst, D-07745 Jena, Germany. [Aerts, Andrea; Baker, Scott E.; LaButti, Kurt; Lapidus, Alla; Lindquist, Erika; Lucas, Susan; Riley, Robert; Salamov, Asaf; Schmutz, Jeremy; Grigoriev, Igor V.] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA. [Asiegbu, Fred O.] Univ Helsinki, Dept Forest Sci, FIN-00014 Helsinki, Finland. [Baker, Scott E.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Bendiksby, Mika] Univ Oslo, Nat Hist Museum, NO-0138 Blindern, Norway. [Blumentritt, Melanie; Goodell, Barry; Xie, Xinfeng] Univ Maine, Orono, ME 04469 USA. [Coutinho, Pedro M.; Henrissat, Bernard] Univ Aix Marseille 1, UMR CNRS 6098, F-13288 Marseille 9, France. [Coutinho, Pedro M.; Henrissat, Bernard] Univ Aix Marseille 2, UMR CNRS 6098, F-13288 Marseille 9, France. [Cullen, Dan] Forest Prod Lab, Madison, WI 53726 USA. [de Vries, Ronald P.; Wiebenga, Ad] Royal Netherlands Acad Arts & Sci, Fungal Biodivers Ctr, Cent Bur Schimmelcultures, NL-3584 CT Utrecht, Netherlands. [Gathman, Allen; Lilly, Walt] SE Missouri State Univ, Dept Biol, Cape Girardeau, MO 63701 USA. [Goodell, Barry] Virginia Tech, Dept Wood Sci & Forest Prod, Blacksburg, VA 24061 USA. [Ihrmark, Katarina; Rosling, Anna; Stenlid, Jan; Hogberg, Nils] Swedish Univ Agr Sci, Dept Forest Mycol & Pathol, S-75007 Uppsala, Sweden. [Kauserud, Havard; Skrede, Inger] Univ Oslo, Dept Biol, NO-0316 Oslo, Norway. [Kohler, Annegret; Morin, Emmanuelle; Murat, Claude; Martin, Francis] Inst Natl Rech Agron INRA Nancy Univ, INRA Nancy, UMR 1136, F-54280 Champenoux, France. [Lavin, Jose L.; Oguiza, Jose A.; Pisabarro, Antonio G.] Univ Publ Navarra, Dept Agr Prod, Pamplona 31006, Spain. [Lee, Yong-Hwan; Park, Jongsun] Seoul Natl Univ, Dept Agr Biotechnol, Seoul 151921, South Korea. [Schmidt, Olaf] Univ Hamburg, Dept Wood Biol, D-21031 Hamburg, Germany. [Watkinson, Sarah C.] Univ Oxford, Dept Plant Sci, Oxford OX1 3RB, England. RP Eastwood, DC (reprint author), Univ Swansea, Coll Sci, Singleton Pk, Swansea SA2 8PP, W Glam, Wales. EM d.c.eastwood@swansea.ac.uk RI Binder, Manfred/C-8571-2013; Lapidus, Alla/I-4348-2013; Schmutz, Jeremy/N-3173-2013; de Vries, Ronald/F-8125-2011; Rosling, Anna/D-1984-2012; Henrissat, Bernard/J-2475-2012; Pisabarro, Antonio/K-3622-2014; Majcherczyk, Andrzej/B-8267-2008; Lavin, Jose Luis/J-7892-2013; OI Lapidus, Alla/0000-0003-0427-8731; Schmutz, Jeremy/0000-0001-8062-9172; de Vries, Ronald/0000-0002-4363-1123; Pisabarro, Antonio/0000-0001-6987-5794; Majcherczyk, Andrzej/0000-0002-1616-6983; Lavin, Jose Luis/0000-0003-0914-3211; Skrede, Inger/0000-0002-1113-7403; Eastwood, Daniel/0000-0002-7015-0739; Park, Jongsun/0000-0003-0786-4701; Kues, Ursula/0000-0001-9180-4079 FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231] FX J. Schilling, University of Minnesota, and D. Barbara, University of Warwick, critically reviewed the manuscript; T. Marks designed graphics; and B. Wackler and M. Zomorrodi gave technical assistance. Assembly and annotations of S. lacrymans genomes are available at www.jgi.doe.gov/Serpula and DNA Data Bank of Japan/European Molecular Biology Laboratory/GenBank, accessions nos. AECQB00000000 and AEQC00000000. The complete microarray expression data set is available at the Gene Expression Omnibus (www.ncbi.nlm.nih.gov/geo/) accession no. GSE27839. The work was conducted by the U.S. Department of Energy Joint Genome Institute and supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-05CH11231. Further financial support is acknowledged in the supporting online material on Science Online. NR 28 TC 187 Z9 189 U1 25 U2 258 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD AUG 5 PY 2011 VL 333 IS 6043 BP 762 EP 765 DI 10.1126/science.1205411 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 802LH UT WOS:000293512100045 PM 21764756 ER PT J AU Xie, YY Chen, AG Du, D Lin, YH AF Xie, Yunying Chen, Aigiong Du, Dan Lin, Yuehe TI Graphene-based immunosensor for electrochemical quantification of phosphorylated p53 (S15) SO ANALYTICA CHIMICA ACTA LA English DT Article DE Phosphorylated p53; Graphene; Immunosensor; Electrochemistry ID GOLD NANOPARTICLES; GAMMA-RADIATION; DNA-DAMAGE; ACETYLCHOLINESTERASE; CHITOSAN; CANCER; IMMOBILIZATION; AMPLIFICATION; BIOSENSORS; STRATEGY AB We reported a graphene-based immunosensor for electrochemical quantification of phosphorylated p53 on serine 15 (phospho-p53(15)), a potential biomarker of gamma-radiation exposure. The principle is based on sandwich immunoassay and the resulting immunocomplex is formed among phospho-p53 capture antibody, phospho-p53(15) antigen, biotinylated phospho-p53(15) detection antibody and horseradish peroxidase (HRP)-labeled streptavidin. The introduced HRP results in an electrocatalytic response to reduction of hydrogen peroxide in the presence of thionine. Graphene served as sensor platform not only promotes electron transfer, but also increases the surface area to introduce a large amount of capture antibody, thus increasing the detection sensitivity. The experimental conditions including blocking agent, immunoreaction time and substrate concentration have been optimized. Under the optimum conditions, the increase of response current is proportional to the phospho-p53(15) concentration in the range of 0.2-10 ng mL(-1), with the detection limit of 0.1 ng mL(-1). The developed immunosensor exhibits acceptable stability and reproducibility and the assay results for phospho-p53(15) are in good correlation with the known values. This easily fabricated immunosensor provides a new promising tool for analysis of phospho-p53(15) and other phosphorylated proteins. (C) 2011 Elsevier B.V. All rights reserved. C1 [Xie, Yunying; Chen, Aigiong; Du, Dan] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China. [Lin, Yuehe] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Du, D (reprint author), Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China. EM dudan@mail.ccnu.edu.cn; Yuehe.lin@pnnl.gov RI Lin, Yuehe/D-9762-2011; Du, Dan (Annie)/G-3821-2012; Zhang, Yong/H-1774-2012 OI Lin, Yuehe/0000-0003-3791-7587; Zhang, Yong/0000-0002-5831-637X FU National Natural Science Foundation of China [21075047]; Program for Chenguang Young Scientist for Wuhan [200950431184]; Special Fund for Basic Scientific Research of Central Colleges [CCNU10A02005]; NIH through the National Institute of Neurological Disorders and Stroke, NIH [U01 NS058161-01]; DOE [DE-AC05-76L01830] FX This work was supported by the National Natural Science Foundation of China (21075047), the Program for Chenguang Young Scientist for Wuhan (200950431184) and the Special Fund for Basic Scientific Research of Central Colleges (CCNU10A02005). Y. Lin acknowledges the financial support by Grant U01 NS058161-01 from the NIH's CounterACT Program through the National Institute of Neurological Disorders and Stroke, NIH. Pacific Northwest National Laboratory is operated for DOE by Battelle under Contract DE-AC05-76L01830. NR 29 TC 40 Z9 41 U1 5 U2 69 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0003-2670 J9 ANAL CHIM ACTA JI Anal. Chim. Acta PD AUG 5 PY 2011 VL 699 IS 1 BP 44 EP 48 DI 10.1016/j.aca.2011.05.010 PG 5 WC Chemistry, Analytical SC Chemistry GA 797TD UT WOS:000293152100007 PM 21704756 ER PT J AU Shelton, WA Apra, E Sumpter, BG Saraiva-Souza, A Souza, AG Del Nero, J Meunier, V AF Shelton, William A. Apra, Edoardo Sumpter, Bobby G. Saraiva-Souza, Aldilene Souza Filho, Antonio G. Del Nero, Jordan Meunier, Vincent TI Theory of zwitterionic molecular-based organic magnets SO CHEMICAL PHYSICS LETTERS LA English DT Article ID WALLED CARBON NANOTUBES; LARGE BETAINE MOLECULES; GRAPHENE NANORIBBONS; GROUND-STATE; EDGE; INSULATOR; CRYSTAL; BONDS AB We describe a class of organic molecular magnets based on zwitterionic molecules (betaine derivatives) possessing donor, pi bridge, and acceptor groups. Using extensive electronic structure calculations we show the electronic ground-state in these systems is magnetic. In addition, we show that the large energy differences computed for the various magnetic states indicate a high Neel temperature. The quantum mechanical nature of the magnetic properties originates from the conjugated pi bridge (only p electrons) in cooperation with the molecular donor-acceptor character. The exchange interactions between electron spin are strong, local, and independent on the length of the pi bridge. (C) 2011 Elsevier B. V. All rights reserved. C1 [Sumpter, Bobby G.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Saraiva-Souza, Aldilene; Souza Filho, Antonio G.] Univ Fed Ceara, Dept Fis, BR-60455900 Fortaleza, Ceara, Brazil. [Del Nero, Jordan] Fed Univ Para, Dept Fis, BR-66075110 Belem, Para, Brazil. [Meunier, Vincent] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA. RP Sumpter, BG (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM sumpterbg@ornl.gov RI Apra, Edoardo/F-2135-2010; Sumpter, Bobby/C-9459-2013; Meunier, Vincent/F-9391-2010; Nanobiosimes, Inct/K-2263-2013; Souza, Antonio/D-8978-2011; Universidade Federal do Ceara, Physics Department/J-4630-2016; UFC, DF/E-1564-2017 OI Apra, Edoardo/0000-0001-5955-0734; Sumpter, Bobby/0000-0001-6341-0355; Meunier, Vincent/0000-0002-7013-179X; Souza, Antonio/0000-0003-3802-1168; Universidade Federal do Ceara, Physics Department/0000-0002-9247-6780; FU Division of Scientific User Facilities, US Department of Energy; CNPq; FUNCAP; Division of Materials Science and Engineering, US Department of Energy; Center for Nanophase Materials Sciences (CNMS) FX This research was supported in part by the Division of Materials Science and Engineering, US Department of Energy and the Center for Nanophase Materials Sciences (CNMS), sponsored by the Division of Scientific User Facilities, US Department of Energy. AS-S is grateful a CNPq fellowship. AGSF acknowledges the FUNCAP and CNPq agencies. AGSF and JDN acknowledge the Rede Nanotubos de Carbono/CNPq and the FAPESPA agency. NR 41 TC 6 Z9 6 U1 3 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 EI 1873-4448 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD AUG 5 PY 2011 VL 511 IS 4-6 BP 294 EP 298 DI 10.1016/j.cplett.2011.06.028 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 798NI UT WOS:000293214900023 ER PT J AU Tanaka, H Senda, M Venugopalan, N Yamamoto, A Senda, T Ishida, T Horiike, K AF Tanaka, Hiroyuki Senda, Miki Venugopalan, Nagarajan Yamamoto, Atsushi Senda, Toshiya Ishida, Tetsuo Horiike, Kihachiro TI Crystal Structure of a Zinc-dependent D-Serine Dehydratase from Chicken Kidney SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID AMINO-ACID OXIDASE; PYRIDOXAL-PHOSPHATE ENZYMES; ALANINE RACEMASE; D-ASPARTATE; REACTION SPECIFICITY; THREONINE ALDOLASE; DIFFRACTION DATA; PROTEIN; BRAIN; IDENTIFICATION AB D-Serine is a physiological co-agonist of the N-methyl-D-aspartate receptor. It regulates excitatory neurotransmission, which is important for higher brain functions in vertebrates. In mammalian brains, D-amino acid oxidase degrades D-serine. However, we have found recently that in chicken brains the oxidase is not expressed and instead a D-serine dehydratase degrades D-serine. The primary structure of the enzyme shows significant similarities to those of metal-activated D-threonine aldolases, which are fold-type III pyridoxal 5'-phosphate (PLP)-dependent enzymes, suggesting that it is a novel class of D-serine dehydratase. In the present study, we characterized the chicken enzyme biochemically and also by x-ray crystallography. The enzyme activity on D-serine decreased 20-fold by EDTA treatment and recovered nearly completely by the addition of Zn2+. None of the reaction products that would be expected from side reactions of the PLP-D-serine Schiff base were detected during the >6000 catalytic cycles of dehydration, indicating high reaction specificity. We have determined the first crystal structure of the D-serine dehydratase at 1.9 angstrom resolution. In the active site pocket, a zinc ion that coordinates His(347) and Cys(349) is located near the PLP-Lys(45) Schiff base. A theoretical model of the enzyme-D-serine complex suggested that the hydroxyl group of D-serine directly coordinates the zinc ion, and that the epsilon-NH2 group of Lys(45) is a short distance from the substrate C alpha atom. The alpha-proton abstraction from D-serine by Lys(45) and the elimination of the hydroxyl group seem to occur with the assistance of the zinc ion, resulting in the strict reaction specificity. C1 [Senda, Toshiya] Natl Inst Adv Ind Sci & Technol, Biomed Informat Res Ctr, Koto Ku, Tokyo 1350064, Japan. [Tanaka, Hiroyuki; Yamamoto, Atsushi; Ishida, Tetsuo; Horiike, Kihachiro] Shiga Univ Med Sci, Dept Biochem & Mol Biol, Shiga 5202192, Japan. [Senda, Miki] Japan Biol Informat Consortium, JBIC Res Inst, Struct Guided Drug Dev Project, Koto Ku, Tokyo 1350064, Japan. [Venugopalan, Nagarajan] NCI, Collaborat Access Team, Biosci Div, Argonne Natl Lab, Argonne, IL 60439 USA. [Venugopalan, Nagarajan] Natl Inst Gen Med Sci, Argonne, IL 60439 USA. RP Senda, T (reprint author), Natl Inst Adv Ind Sci & Technol, Biomed Informat Res Ctr, Koto Ku, 2-4-7 Aomi, Tokyo 1350064, Japan. EM toshiya-senda@aist.go.jp; teishida@belle.shiga-med.ac.jp FU Ministry of Education, Culture, Sports, Science, and Technology of Japan; New Energy and Industrial Technology Development Organization of Japan; Shiga University of Medical Science FX This work was supported in part by a grant-in-aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology of Japan; by the New Energy and Industrial Technology Development Organization of Japan; and by a grant-in-aid (Heisei era 22) from the Shiga University of Medical Science. NR 42 TC 12 Z9 12 U1 1 U2 17 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 EI 1083-351X J9 J BIOL CHEM JI J. Biol. Chem. PD AUG 5 PY 2011 VL 286 IS 31 BP 27548 EP 27558 DI 10.1074/jbc.M110.201160 PG 11 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 799EZ UT WOS:000293268700049 PM 21676877 ER PT J AU Kidder, MK Chaffee, AL Nguyen, MHT Buchanan, AC AF Kidder, Michelle K. Chaffee, Alan L. Nguyen, My-Huong T. Buchanan, A. C., III TI Pyrolysis of Phenethyl Phenyl Ether Tethered in Mesoporous Silica. Effects of Confinement and Surface Spacer Molecules on Product Selectivity SO JOURNAL OF ORGANIC CHEMISTRY LA English DT Article ID FREE-RADICAL REACTION; HYDROGEN-BOND; ALPHA/BETA-SELECTIVITIES; COMPUTATIONAL PREDICTION; PORE CONFINEMENT; HYBRID MATERIALS; LIGNIN; CATALYSIS; MODEL; ISOMERIZATION AB There has been expanding interest in exploring porous metal oxides as a confining environment for organic molecules resulting in altered chemical and physical properties including chemical transformations. In this paper, we examine the pyrolysis behavior of phenethyl phenyl ether (PPE) confined in mesoporous silica by covalent tethers to the pore walls as a function of tether density and the presence of cotethered surface spacer molecules of varying structure (biphenyl, naphthyl, octyl, and hexadecyl). The PPE pyrolysis product selectivity, which is determined by two competitive free-radical pathways cycling through the two aliphatic radical intermediates (PhCH center dot CH(2)OPh and PhCH(2)CH center dot OPh), is shown to be significantly different from that measured in the liquid phase as well as for PPE tethered to the exterior surface of nonporous silica nanoparticles. Tailoring the pore surface with spacer molecules further alters the selectivity such that the PPE reaction channel involving a molecular rearrangement (O-C phenyl shift in PhCH(2)CH center dot OPh), which accounts for 2596 of the products in the liquid phase, can be virtually eliminated under pore confinement conditions. The origin of this change in selectivity is discussed in the context of steric constraints on the rearrangement path inside the pores, surface and pore confinement effects, pore surface curvature, and hydrogen bonding of PPE with residual surface silanols supplemented by nitrogen physisorption data and molecular dynamics simulations. C1 [Kidder, Michelle K.; Buchanan, A. C., III] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Chaffee, Alan L.; Nguyen, My-Huong T.] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia. RP Buchanan, AC (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM buchananac@oml.gov RI zhang, huidong/B-5667-2011 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy FX This research was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. NR 49 TC 10 Z9 10 U1 0 U2 25 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0022-3263 J9 J ORG CHEM JI J. Org. Chem. PD AUG 5 PY 2011 VL 76 IS 15 BP 6014 EP 6023 DI 10.1021/jo200576v PG 10 WC Chemistry, Organic SC Chemistry GA 798ZW UT WOS:000293252600014 PM 21696147 ER PT J AU Chen, AP Bi, ZX Hazariwala, H Zhang, XH Su, Q Chen, L Jia, QX MacManus-Driscoll, JL Wang, HY AF Chen, Aiping Bi, Zhenxing Hazariwala, Harshad Zhang, Xinghang Su, Qing Chen, Li Jia, Quanxi MacManus-Driscoll, Judith L. Wang, Haiyan TI Microstructure, magnetic, and low-field magnetotransport properties of self-assembled (La0.7Sr0.3MnO3)(0.5):(CeO2)(0.5) vertically aligned nanocomposite thin films SO NANOTECHNOLOGY LA English DT Article ID EPITAXIAL-FILMS; NANOSTRUCTURES; MAGNETORESISTANCE; PERCOLATION; COMPOSITES; ANISOTROPY AB Two-phase (La0.7Sr0.3MnO3)(0.5):(CeO2)(0.5)(LSMO:CeO2) heteroepitaxial nanocomposite films were grown on SrTiO3 (STO) (001) by pulsed laser deposition (PLD). X-ray diffraction (XRD) and transmission electron microscopy (TEM) results show that LSMO:CeO2 films epitaxially grow on STO as self-assembled vertically aligned nanocomposite (VAN). Magnetic and magnetotransport measurements demonstrate that the LSMO phase in the VAN structure behaves differently from its epitaxial single-phase counterpart, e. g. greatly enhanced coercivity (H-C) and low-field magnetoresistance (LFMR). The enhanced properties in the VAN system are attributed to the interaction between the perovskite and the secondary phase or phase boundary. The results suggest that the growth of functional oxide in another oxide matrix with vertical heteroepitaxial form is a promising approach to achieve new functionality that may not be easily realized in the single epitaxial phase. C1 [Chen, Aiping; Bi, Zhenxing; Hazariwala, Harshad; Su, Qing; Chen, Li; Wang, Haiyan] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA. [Zhang, Xinghang] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. [Jia, Quanxi] Los Alamos Natl Lab, Ctr Integrated Nanotechnol CINT, Los Alamos, NM 87545 USA. [MacManus-Driscoll, Judith L.] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England. RP Chen, AP (reprint author), Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA. EM wangh@ece.tamu.edu RI Jia, Q. X./C-5194-2008; Su, Qing/N-2518-2014; Wang, Haiyan/P-3550-2014; Chen, Aiping/F-3212-2011; OI Wang, Haiyan/0000-0002-7397-1209; Chen, Aiping/0000-0003-2639-2797; Su, Qing/0000-0003-2477-0002 FU US National Science Foundation [NSF-0709831, NSF-1007969]; National Nuclear Security Administration of the US Department of Energy [DE-AC52-06NA25396] FX The work at Texas A&M University was supported by the US National Science Foundation (Ceramic Program, NSF-0709831 and NSF-1007969). The work at Los Alamos was performed, in part, at the Center for Integrated Nanotechnologies, a US Department of Energy, Office of Basic Energy Sciences users' facility. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under contract DE-AC52-06NA25396. NR 27 TC 25 Z9 25 U1 6 U2 46 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0957-4484 J9 NANOTECHNOLOGY JI Nanotechnology PD AUG 5 PY 2011 VL 22 IS 31 AR 315712 DI 10.1088/0957-4484/22/31/315712 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 791TT UT WOS:000292689600027 PM 21750374 ER PT J AU Li, LL Taghavi, S McCorkle, SM Zhang, YB Blewitt, MG Brunecky, R Adney, WS Himmel, ME Brumm, P Drinkwater, C Mead, DA Tringe, SG van der Lelie, D AF Li, Luen-Luen Taghavi, Safiyh McCorkle, Sean M. Zhang, Yian-Biao Blewitt, Michael G. Brunecky, Roman Adney, William S. Himmel, Michael E. Brumm, Phillip Drinkwater, Colleen Mead, David A. Tringe, Susannah G. van der Lelie, Daniel TI Bioprospecting metagenomics of decaying wood: mining for new glycoside hydrolases SO BIOTECHNOLOGY FOR BIOFUELS LA English DT Article ID MICROBIAL COMMUNITY; IONIC LIQUIDS; GUT; CELLULOSOMES; DISSOLUTION; PROKARYOTES; DEGRADATION; BIOMASS; TERMITE; CLONING AB Background: To efficiently deconstruct recalcitrant plant biomass to fermentable sugars in industrial processes, biocatalysts of higher performance and lower cost are required. The genetic diversity found in the metagenomes of natural microbial biomass decay communities may harbor such enzymes. Our goal was to discover and characterize new glycoside hydrolases (GHases) from microbial biomass decay communities, especially those from unknown or never previously cultivated microorganisms. Results: From the metagenome sequences of an anaerobic microbial community actively decaying poplar biomass, we identified approximately 4,000 GHase homologs. Based on homology to GHase families/activities of interest and the quality of the sequences, candidates were selected for full-length cloning and subsequent expression. As an alternative strategy, a metagenome expression library was constructed and screened for GHase activities. These combined efforts resulted in the cloning of four novel GHases that could be successfully expressed in Escherichia coli. Further characterization showed that two enzymes showed significant activity on p-nitrophenyl-alpha-L-arabinofuranoside, one enzyme had significant activity against p-nitrophenyl-beta-D-glucopyranoside, and one enzyme showed significant activity against p-nitrophenyl-beta-D-xylopyranoside. Enzymes were also tested in the presence of ionic liquids. Conclusions: Metagenomics provides a good resource for mining novel biomass degrading enzymes and for screening of cellulolytic enzyme activities. The four GHases that were cloned may have potential application for deconstruction of biomass pretreated with ionic liquids, as they remain active in the presence of up to 20% ionic liquid (except for 1-ethyl-3-methylimidazolium diethyl phosphate). Alternatively, ionic liquids might be used to immobilize or stabilize these enzymes for minimal solvent processing of biomass. C1 [Li, Luen-Luen; Taghavi, Safiyh; McCorkle, Sean M.; Zhang, Yian-Biao; Blewitt, Michael G.; van der Lelie, Daniel] Brookhaven Natl Lab, Upton, NY 11973 USA. [Li, Luen-Luen; Taghavi, Safiyh; McCorkle, Sean M.; Brunecky, Roman; Adney, William S.; Himmel, Michael E.; van der Lelie, Daniel] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN USA. [Brunecky, Roman; Adney, William S.; Himmel, Michael E.] Natl Renewable Energy Lab, Golden, CO USA. [Brumm, Phillip; Drinkwater, Colleen; Mead, David A.] Lucigen Corp, Middleton, WI USA. [Brumm, Phillip; Drinkwater, Colleen; Mead, David A.] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI USA. [Tringe, Susannah G.] DOE Joint Genome Inst, Walnut Creek, CA USA. [van der Lelie, Daniel] RTI Int, Ctr Agr & Environm Biotechnol, Res Triangle Pk, NC USA. RP van der Lelie, D (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM vdlelied@rti.org OI Tringe, Susannah/0000-0001-6479-8427 FU BioEnergy Science Center; Office of Biological and Environmental Research in the DOE Office of Science; US Department of Energy; University of California, Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Los Alamos National Laboratory [DE-AC02-06NA25396] FX Funding for this study was provided by The BioEnergy Science Center. The BioEnergy Science Center (BESC) and the Great Lakes Bioenergy Research Center (GLBRC) are U.S. Department of Energy Bioenergy Research Centers supported by the Office of Biological and Environmental Research in the DOE Office of Science. Metagenome sequencing of poplar biomass decaying community was performed at the Joint Genome Institute (JGI) under the auspices of the US Department of Energy's Office of Science, Biological and Environmental Research Program, and by the University of California, Lawrence Berkeley National Laboratory under contract No. DE-AC02-05CH11231, Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344, and Los Alamos National Laboratory under contract No. DE-AC02-06NA25396. We also thank Marie Thomas and James Wishart from the Chemistry department, Brookhaven National Laboratory, for kindly providing the ionic liquids for this study. NR 30 TC 14 Z9 14 U1 3 U2 27 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1754-6834 J9 BIOTECHNOL BIOFUELS JI Biotechnol. Biofuels PD AUG 4 PY 2011 VL 4 AR 23 DI 10.1186/1754-6834-4-23 PG 13 WC Biotechnology & Applied Microbiology; Energy & Fuels SC Biotechnology & Applied Microbiology; Energy & Fuels GA 820HK UT WOS:000294896100001 PM 21816041 ER PT J AU Pozzo, M Desjarlais, MP Alfe, D AF Pozzo, Monica Desjarlais, Michael P. Alfe, Dario TI Electrical and thermal conductivity of liquid sodium from first-principles calculations SO PHYSICAL REVIEW B LA English DT Article ID INITIO MOLECULAR-DYNAMICS; AUGMENTED-WAVE METHOD; BRILLOUIN-ZONE; METALS; RESISTIVITY; SIMULATIONS; ALGORITHM; NA AB We report on the electrical and thermal conductivity of liquid sodium at 400 K, calculated using density functional theory with the local density approximation (LDA) and the Kubo-Greenwood formula. We extensively tested system-size errors and k-point sampling, using simulation cells containing up to 2000 atoms. We find that convergence of the results with respect to the size of the system is slow, and at least 1024-atom systems are required to obtain conductivities converged to within a few percent. Gamma-point sampling does not seem to be accurate enough, even for the very largest 2000-atom system. We performed calculations at three densities, including the experimental density rho(expt) = 921 kg m(-3), the LDA density rho(LDA) = 1046 kg m(-3), and a higher density rho = 1094 kg m(-3). At the experimental density, the electrical conductivity is underestimated by similar to 35%, at the LDA density it is overestimated by similar to 18%, and at the largest density it is higher than the experimental one by similar to 50%. At the experimental density, we also used the Perdew-Burke-Ernzerhof functional, and found that the conductivity is overestimated by only similar to 6%. C1 [Pozzo, Monica; Alfe, Dario] UCL, Dept Earth Sci, Dept Phys & Astron, London Ctr Nanotechnol, London WC1E 6BT, England. [Pozzo, Monica; Alfe, Dario] UCL, TYC UCL, London WC1E 6BT, England. [Desjarlais, Michael P.] Sandia Natl Labs, Pulsed Power Sci Ctr, Albuquerque, NM 87185 USA. RP Pozzo, M (reprint author), UCL, Dept Earth Sci, Dept Phys & Astron, London Ctr Nanotechnol, Gower St, London WC1E 6BT, England. EM d.alfe@ucl.ac.uk RI Pozzo, Monica/C-4965-2011; Alfe`, Dario/C-1521-2008 OI Alfe`, Dario/0000-0002-9741-8678 FU EPSRC FX The work of M. P. and D. A. was conducted as part of a EURYI scheme award as provided by EPSRC (see www.esf.org/euryi). Calculations were performed on the HECToR service in the UK We thank two anonymous referees for valuable suggestions. NR 30 TC 23 Z9 24 U1 5 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 4 PY 2011 VL 84 IS 5 AR 054203 DI 10.1103/PhysRevB.84.054203 PG 7 WC Physics, Condensed Matter SC Physics GA 802GW UT WOS:000293498300002 ER PT J AU Stankova-Pursley, J Bilek, SL Phillips, WS Newman, AV AF Stankova-Pursley, Jana Bilek, Susan L. Phillips, W. Scott Newman, Andrew V. TI Along-strike variations of earthquake apparent stress at the Nicoya Peninsula, Costa Rica, subduction zone SO GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS LA English DT Article DE apparent stress; coda wave; plate coupling; seamounts; subduction zone ID MIDDLE AMERICA TRENCH; MOMENT-RATE SPECTRA; FORE-ARC KINEMATICS; SEA-FLOOR ROUGHNESS; SEAMOUNT SUBDUCTION; SEISMOGENIC ZONE; CODA WAVES; QUATERNARY UPLIFT; LOCAL EARTHQUAKES; CONVERGENT MARGIN AB Oceanic plates vary in temperature, topography, and sediment load as they enter subduction zones. These variations persist along the subduction interface causing perturbations in coupling and earthquake rupture processes. We explore the effects of variable subducting plate structure on microseismicity rupture characteristics along the Nicoya Peninsula, Costa Rica. The subducting Cocos Plate has low relief along the northern and central portion of the peninsula, with seamounts present at the southern tip of the peninsula. We compute apparent stresses for 94 M-L 2.5-4.2 earthquakes along the plate interface using waveform coda and find along-strike variations that mimic bathymetric variability. Median stress values are higher (3.2 MPa) in the smooth northern region, with lower values in the central (2.1 MPa) and southern (0.7 MPa) segments. Higher apparent stresses along a zone of little suspected subduction topography imply increased coupling or higher friction along the interface. These results agree with geodetic and other seismic studies that suggest variable plate coupling along the Nicoya Peninsula. C1 [Stankova-Pursley, Jana; Bilek, Susan L.] New Mexico Inst Min & Technol, EES Dept, Socorro, NM 87801 USA. [Phillips, W. Scott] Los Alamos Natl Lab, EES 11, Los Alamos, NM 87545 USA. [Newman, Andrew V.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA. RP Stankova-Pursley, J (reprint author), New Mexico Inst Min & Technol, EES Dept, 801 Leroy Pl, Socorro, NM 87801 USA. EM janas@ees.nmt.edu RI Newman, Andrew/E-7682-2012 OI Newman, Andrew/0000-0001-7414-1197 FU LANL; NSF [OCE-0751610] FX Constructive reviews from three anonymous reviewers significantly improved the manuscript. This work was supported by LANL and NSF award OCE-0751610 to SLB. NR 79 TC 4 Z9 4 U1 0 U2 7 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 1525-2027 J9 GEOCHEM GEOPHY GEOSY JI Geochem. Geophys. Geosyst. PD AUG 4 PY 2011 VL 12 AR Q08002 DI 10.1029/2011GC003558 PG 15 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 804KR UT WOS:000293653200001 ER PT J AU Wing, S Ohtani, S Johnson, JR Echim, M Newell, PT Higuchi, T Ueno, G Wilson, GR AF Wing, Simon Ohtani, Shin-ichi Johnson, Jay R. Echim, Marius Newell, Patrick T. Higuchi, Tomoyuki Ueno, Genta Wilson, Gordon R. TI Solar wind driving of dayside field-aligned currents SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID INTERPLANETARY MAGNETIC-FIELD; LATITUDE BOUNDARY-LAYER; DISCRETE AURORAL ARCS; BIRKELAND CURRENTS; PLASMA SHEET; LOW-ALTITUDE; ELECTRIC POTENTIALS; DYNAMIC PRESSURE; PARTICLE-PRECIPITATION; SOUTHWARD IMF AB Variations in the dayside field-aligned current (FAC) density (J(//)), field-aligned parallel potential drop (Delta phi(//)), peak precipitating electron energy (peak E(e)), and precipitating electron energy flux (epsilon) as functions of solar wind (SW) and interplanetary magnetic field (IMF) are investigated with Defense Meteorological Satellite Program observations and a quasi-stationary low-latitude boundary layer (LLBL)-FAC coupling model. Region 1 (R1) J(//) responses to variations in SW velocity (V(sw)) and density (n(sw)) at 8-16 magnetic local time (MLT) suggest that R1 at these local times is frequently open while R1 at 6-08 and 17-18 MLT is frequently closed. R2 is located mostly on closed field lines. In the afternoon open R1 at 12-16 MLT, an increase in n(sw) increases J(//), decreases maximum peak Ee (proxy for Delta phi(//)), but has little effect on maximum epsilon. In the same R1 region, an increase in V(sw) increases J(//), maximum peak E(e), and maximum epsilon. The dependencies of J(//), maximum peak E(e), and maximum epsilon are consistent with the Knight relation and the voltage generator at the magnetopause boundary in the afternoon open R1. In the midmorning and midafternoon, the response of J(//) to V(sw) is higher for southward than for northward IMF. This can be attributed to the higher-velocity shear at the magnetopause boundary due to higher sunward convection in the LLBL inside the magnetopause. R1 in the closed-field lines near dawn and dusk appears to be more sensitive to merging rate (d Phi/dt = V(4/3)(sw) B(T)(2/3) sin(8/3)(theta(c)/2)) than to SW dynamic pressure. C1 [Wing, Simon; Ohtani, Shin-ichi; Newell, Patrick T.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA. [Echim, Marius] Inst Aeron Spatiale Belgique, B-1180 Brussels, Belgium. [Higuchi, Tomoyuki; Ueno, Genta] Inst Stat Math, Dept Stat Modeling, Minato Ku, Tokyo 1068569, Japan. [Johnson, Jay R.] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA. [Wilson, Gordon R.] USAF, Res Lab, Albuquerque, NM 87111 USA. [Echim, Marius] Inst Space Sci, Bucharest, Romania. RP Wing, S (reprint author), Johns Hopkins Univ, Appl Phys Lab, 11100 Johns Hopkins Rd, Laurel, MD 20723 USA. EM simon.wing@jhuapl.edu RI Echim, Marius/F-1813-2010; Ohtani, Shinichi/E-3914-2016 OI Echim, Marius/0000-0001-7038-9494; Ohtani, Shinichi/0000-0002-9565-6840 FU NSF [ATM-0703445, ATM-0802715, ATM-0538513, ATM-0503065, ATM0902730]; NASA [NNX10AE63G, NNX09AF46G, NNG07EK69I, NNH07AF37I, NNH09AM53I, NNH09AK63I]; Belgian Office for Science (BELSPO) [MO/35/031]; ESA PECS [98049/2007]; DOE [DE-AC02-09CH11466] FX The study was supported by NSF Grants ATM-0703445, ATM-0802715, and ATM-0538513, and by NASA Grant NNX10AE63G. Shin Ohtani acknowledges the support of NSF grant ATM-0503065 and NASA Grant NNX09AF46G. Marius Echim acknowledges support from the Belgian Office for Science (BELSPO) grant MO/35/031 and from ESA PECS grant 98049/2007. Jay R. Johnson acknowledges support from NASA grants (NNG07EK69I, NNH07AF37I, NNH09AM53I, and NNH09AK63I), NSF grant ATM0902730, and DOE contract DE-AC02-09CH11466. We thank Fred Rich and the Air Force Research Laboratory for the DMSP SSJ4 and magnetometer data. We thank James M. Weygand for the solar wind data processing. The raw solar wind data from ACE, Wind, IMP8, ISEE1 and ISEE3 were obtained from NASA CDAW and NSSDC. NR 81 TC 9 Z9 10 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD AUG 4 PY 2011 VL 116 AR A08208 DI 10.1029/2011JA016579 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 804JJ UT WOS:000293649800001 ER PT J AU Chen, JJ Bai, JM Chen, HY Graetz, J AF Chen, Jiajun Bai, Jianming Chen, Haiyan Graetz, Jason TI In Situ Hydrothermal Synthesis of LiFePO4 Studied by Synchrotron X-ray Diffraction SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID LITHIUM-ION BATTERIES; PARTICLE-SIZE; PHOSPHATE; DEFECTS; ENERGY AB The development of high capacity, safe lithium battery materials requires new tools to better understand how reaction conditions affect nucleation and crystallization, particle size, morphology, and defects. We present a general approach for studying the synthesis of Li battery electrode materials in real time. The formation of LiFePO4 was investigated by time-resolved in situ synchrotron X-ray diffraction under hydrothermal conditions, and the reaction kinetics were determined by changes of the Bragg reflections. We provide the first evidence in support of a dissolution-reprecipitation process for the formation of LiFePO4, which occurs at temperatures as low as 105 degrees C and appears to be a three-dimensional diffusion-controlled process. Lattice parameters and their evolution were monitored in situ, as well as the formation of antisite defects and their subsequent elimination under various synthesis conditions. The ability to characterize and tailor synthesis reactions in situ is essential for rapid optimization of the synthesis procedures and, ultimately, the development of new battery electrodes. C1 [Chen, Jiajun; Graetz, Jason] Brookhaven Natl Lab, Sustainable Energy Technol Dept, Upton, NY 11973 USA. [Bai, Jianming] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Chen, Haiyan] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA. RP Chen, JJ (reprint author), Brookhaven Natl Lab, Sustainable Energy Technol Dept, Upton, NY 11973 USA. EM jjchen@bnl.gov RI Chen, Haiyan/C-8109-2012; Bai, Jianming/O-5005-2015 FU U.S. Department of Energy (DOE) with Laboratory Directed Research and Development at Brookhaven National Laboratory (BNL) [DE-AC02-98CH10886]; U.S. DOE, Office of Basic Energy Sciences; U.S. DOE, Office of EERE through the ORNL's High Temperature Materials Laboratory FX This work was supported by the U.S. Department of Energy (DOE) under contract DE-AC02-98CH10886 with funding from the Laboratory Directed Research and Development at Brookhaven National Laboratory (BNL). Use of the National Synchrotron Light Source, BNL, was supported by the U.S. DOE, Office of Basic Energy Sciences, and research at beamline X14A was partially sponsored by the U.S. DOE, Office of EERE, Vehicle Technologies Program, through the ORNL's High Temperature Materials Laboratory User Program. The authors are very grateful to Dr. Dongli Zeng for help acquiring SEM images and Dr. Can Erdonmez for very fruitful discussions. NR 19 TC 31 Z9 31 U1 3 U2 68 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD AUG 4 PY 2011 VL 2 IS 15 BP 1874 EP 1878 DI 10.1021/jz2008209 PG 5 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 801EL UT WOS:000293419600006 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Das, A Davies, G De, K de Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S Deterre, C DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Garcia-Bellido, A Gavrilov, V Gay, P Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guillemin, T Guo, F Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jamin, D Jayasinghe, A Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Jung, AW Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kulikov, S Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M de Sa, RL Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Miconi, F Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Padilla, M Pal, A Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petridis, K Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Polozov, P Popov, AV Prewitt, M Price, D Prokopenko, N Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Rominsky, M Ross, A Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Salcido, P Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Soustruznik, K Stark, J Stolin, V Stoyanova, DA Strauss, M Strom, D Stutte, L Suter, L Svoisky, P Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsai, YT Tsybychev, D Tuchming, B Tully, C Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R Van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vokac, P Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L White, A Wicke, D Williams, MRJ Wilson, GW Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, YA Ye, Z Yin, H Yip, K Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. Chevalier-Thery, S. Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Das, A. Davies, G. De, K. de Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. Deterre, C. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph. Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guillemin, T. Guo, F. Gutierrez, G. Gutierrez, P. Haas, A. Hagopian, S. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J. M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A. P. Heintz, U. Hensel, C. Heredia-De La Cruz, I. Herner, K. Hesketh, G. Hildreth, M. D. Hirosky, R. Hoang, T. Hobbs, J. D. Hoeneisen, B. Hohlfeld, M. Hubacek, Z. Huske, N. Hynek, V. Iashvili, I. Illingworth, R. Ito, A. S. Jabeen, S. Jaffre, M. Jamin, D. Jayasinghe, A. Jesik, R. Johns, K. Johnson, M. Johnston, D. Jonckheere, A. Jonsson, P. Joshi, J. Jung, A. W. Juste, A. Kaadze, K. Kajfasz, E. Karmanov, D. Kasper, P. A. Katsanos, I. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y. N. Khatidze, D. Kirby, M. H. Kohli, J. M. Kozelov, A. V. Kraus, J. Kulikov, S. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V. A. Kvita, J. Lammers, S. Landsberg, G. Lebrun, P. Lee, H. S. Lee, S. W. Lee, W. M. Lellouch, J. Li, L. Li, Q. Z. Lietti, S. M. Lim, J. K. Lincoln, D. Linnemann, J. Lipaev, V. V. Lipton, R. Liu, Y. Liu, Z. Lobodenko, A. Lokajicek, M. Lopes de Sa, R. Lubatti, H. J. Luna-Garcia, R. Lyon, A. L. Maciel, A. K. A. Mackin, D. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V. L. Maravin, Y. Martinez-Ortega, J. McCarthy, R. McGivern, C. L. Meijer, M. M. Melnitchouk, A. Menezes, D. Mercadante, P. G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N. K. Muanza, G. S. Mulhearn, M. Nagy, E. Naimuddin, M. Narain, M. Nayyar, R. Neal, H. A. Negret, J. P. Neustroev, P. Novaes, S. F. Nunnemann, T. Obrant, G. Orduna, J. Osman, N. Osta, J. Otero y Garzon, G. J. Padilla, M. Pal, A. Parashar, N. Parihar, V. Park, S. K. Parsons, J. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, K. Peters, Y. Petridis, K. Petrillo, G. Petroff, P. Piegaia, R. Piper, J. Pleier, M. -A. Podesta-Lerma, P. L. M. Podstavkov, V. M. Polozov, P. Popov, A. V. Prewitt, M. Price, D. Prokopenko, N. Protopopescu, S. Qian, J. Quadt, A. Quinn, B. Rangel, M. S. Ranjan, K. Ratoff, P. N. Razumov, I. Renkel, P. Rijssenbeek, M. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Salcido, P. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. Van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Measurement of the production fraction times branching fraction f(b -> Lambda(b)) . B(Lambda(b) -> J/psi Lambda) SO PHYSICAL REVIEW D LA English DT Article ID WEAK DECAYS; QUARK-MODEL; BARYONS; COLLIDER; BOTTOM AB The Lambda(b)(udb) baryon is observed in the decay Lambda(b) -> J/psi Lambda using 6.1fb(-1) of p (p) over bar collisions collected with the D0 detector at root s = 1/96 TeV. The production fraction multiplied by the branching fraction for this decay relative to that for the decay B-0 -> J/psi K-s(0) is measured to be 0.345 +/- 0.034(stat) +/- 0.033(syst) +/- 0.003(PDG). Using the world average value of f(b -> B-0) . 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A.] Inst High Energy Phys, Protvino, Russia. [Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Juste, A.] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain. [Juste, A.] Inst Fis Altes Energies, Barcelona, Spain. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Ratoff, P. N.; Ross, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Scanlon, T.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Harder, K.; Head, T.; Hesketh, G.; Peters, K.; Peters, Y.; Petridis, K.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Jung, A. W.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Salcido, P.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Carrasco-Lizarraga, M. A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; Lopes de Sa, R.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Parihar, V.; Partridge, R.; Zivkovic, L.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Pal, A.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Orduna, J.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; Gutierrez, Phillip/C-1161-2011; bu, xuebing/D-1121-2012; Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012; Alves, Gilvan/C-4007-2013; Yip, Kin/D-6860-2013; Fisher, Wade/N-4491-2013; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012 OI De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Yip, Kin/0000-0002-8576-4311; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549 FU DOE (USA); NSF (USA); CEA (France); CNRS/IN2P3 (France); FASI (Russia); Rosatom (Russia); RFBR (Russia); CNPq (Brazil); FAPERJ (Brazil); FAPESP (Brazil); FUNDUNESP (Brazil); DAE (India); DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF (Korea); KOSEF (Korea); CONICET (Argentina); UBACyT (Argentina); FOM (The Netherlands); STFC (United Kingdom); Royal Society (United Kingdom); MSMT (Czech Republic); GACR (Czech Republic); CRC Program (Canada); NSERC (Canada); BMBF (Germany); DFG (Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS (China); CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 34 TC 9 Z9 9 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD AUG 4 PY 2011 VL 84 IS 3 AR 031102 DI 10.1103/PhysRevD.84.031102 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 803BY UT WOS:000293556300001 ER PT J AU Campbell, JM Martin, A Williams, C AF Campbell, John M. Martin, Adam Williams, Ciaran TI Next-to-leading order predictions for a lepton, missing transverse momentum, and dijets at the Tevatron SO PHYSICAL REVIEW D LA English DT Article AB In this paper we investigate the various processes that can contribute to a final state consisting of a lepton, missing transverse momentum, and two jets at next-to-leading order (NLO) at the Tevatron. In particular we consider the production of W/Z + 2 jets, diboson pairs, single top, and the t (t) over bar process with both fully leptonic and semileptonic decays. We present distributions for the invariant mass of the dijet system and normalizations of the various processes, accurate to NLO. C1 [Campbell, John M.; Martin, Adam; Williams, Ciaran] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Campbell, JM (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. FU United States Department of Energy [DE-AC02-07CH11359] FX We thank Viviana Cavaliere, Keith Ellis, Walter Giele, Roni Harnik, Joey Huston, Graham Kribs, Fabio Maltoni, Zack Sullivan, and Jan Winter for useful discussions. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. NR 28 TC 10 Z9 10 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 4 PY 2011 VL 84 IS 3 AR 036005 DI 10.1103/PhysRevD.84.036005 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 803BY UT WOS:000293556300008 ER PT J AU Kirkwood, RK Michel, P London, RA Callahan, D Meezan, N Williams, E Seka, W Suter, L Haynam, C Landen, O AF Kirkwood, R. K. Michel, P. London, R. A. Callahan, D. Meezan, N. Williams, E. Seka, W. Suter, L. Haynam, C. Landen, O. TI Amplification of light in a plasma by stimulated ion acoustic waves driven by multiple crossing pump beams SO PHYSICAL REVIEW E LA English DT Article ID IGNITION SCALE PLASMAS; RAMAN-SCATTERING; LASER-BEAMS; BRILLOUIN-SCATTERING; HOHLRAUM PLASMAS; ENERGY-TRANSFER; FACILITY; TARGETS AB Experiments demonstrate the amplification of 351 nm laser light in a hot dense plasma similar to those in inertial confinement fusion ignition experiments. A seed beam interacts with one or two counter-propagating pump beams, each with an intensity of 1.2 x 10(15) W/cm(2) at 351 nm, crossing the seed at 24.8 degrees at the position where the flow is Mach 1, allowing resonant stimulation of ion acoustic waves. Results show that the energy and power transferred to the seed are increased with two pumps beyond the level that occurs with a single pump, demonstrating that, under conditions similar to ignition experiments where each beam has a low gain exponent, the total scatter produced by the multiple beams can be significantly larger than that of the individual beams. It is further demonstrated that the amplification is greatly reduced when the pump polarization is orthogonal to the seed, as expected from models of stimulated scatter. C1 [Kirkwood, R. K.; Michel, P.; London, R. A.; Callahan, D.; Meezan, N.; Williams, E.; Suter, L.; Haynam, C.; Landen, O.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Seka, W.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA. RP Kirkwood, RK (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RI Michel, Pierre/J-9947-2012 NR 28 TC 2 Z9 2 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD AUG 4 PY 2011 VL 84 IS 2 AR 026402 DI 10.1103/PhysRevE.84.026402 PN 2 PG 6 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 803DB UT WOS:000293560200002 PM 21929115 ER PT J AU Arnold, R Augier, C Baker, J Barabash, AS Basharina-Freshville, A Blondel, S Bongrand, M Broudin-Bay, G Brudanin, V Caffrey, AJ Chapon, A Chauveau, E Durand, D Egorov, V Flack, R Garrido, X Grozier, J Guillon, B Hubert, P Hugon, C Jackson, CM Jullian, S Kauer, M Klimenko, A Kochetov, O Konovalov, SI Kovalenko, V Lalanne, D Lamhamdi, T Lang, K Liptak, Z Lutter, G Mamedov, F Marquet, C Martin-Albo, J Mauger, F Mott, J Nachab, A Nemchenok, I Nguyen, CH Nova, F Novella, P Ohsumi, H Pahlka, RB Perrot, F Piquemal, F Reyss, JL Richards, B Ricol, JS Saakyan, R Sarazin, X Simard, L Simkovic, F Shitov, Y Smolnikov, A Soldner-Rembold, S Stekl, I Suhonen, J Sutton, CS Szklarz, G Thomas, J Timkin, V Torre, S Tretyak, VI Umatov, V Vala, L Vanyushin, I Vasiliev, V Vorobel, V Vylov, T Zukauskas, A AF Arnold, R. Augier, C. Baker, J. Barabash, A. S. Basharina-Freshville, A. Blondel, S. Bongrand, M. Broudin-Bay, G. Brudanin, V. Caffrey, A. J. Chapon, A. Chauveau, E. Durand, D. Egorov, V. Flack, R. Garrido, X. Grozier, J. Guillon, B. Hubert, Ph. Hugon, C. Jackson, C. M. Jullian, S. Kauer, M. Klimenko, A. Kochetov, O. Konovalov, S. I. Kovalenko, V. Lalanne, D. Lamhamdi, T. Lang, K. Liptak, Z. Lutter, G. Mamedov, F. Marquet, Ch. Martin-Albo, J. Mauger, F. Mott, J. Nachab, A. Nemchenok, I. Nguyen, C. H. Nova, F. Novella, P. Ohsumi, H. Pahlka, R. B. Perrot, F. Piquemal, F. Reyss, J. L. Richards, B. Ricol, J. S. Saakyan, R. Sarazin, X. Simard, L. Simkovic, F. Shitov, Yu. Smolnikov, A. Soeldner-Rembold, S. Stekl, I. Suhonen, J. Sutton, C. S. Szklarz, G. Thomas, J. Timkin, V. Torre, S. Tretyak, V. I. Umatov, V. Vala, L. Vanyushin, I. Vasiliev, V. Vorobel, V. Vylov, Ts. Zukauskas, A. CA NEMO-3 Collaboration TI Measurement of the beta beta Decay Half-Life of Te-130 with the NEMO-3 Detector SO PHYSICAL REVIEW LETTERS LA English DT Article ID WEAK INTERACTION CONSTANT; MO-100; LIVES; SE-82; TIME AB We report results from the NEMO-3 experiment based on an exposure of 1275 days with 661 g of Te-130 in the form of enriched and natural tellurium foils. The beta beta decay rate of Te-130 is found to be greater than zero with a significance of 7.7 standard deviations and the half-life is measured to be T-1/2(2v)=[7.0 +/- 0.9(stat) +/- 1: 1(syst)] x 10(20) yr. This represents the most precise measurement of this half- life yet published and the first real-time observation of this decay. C1 [Arnold, R.; Tretyak, V. I.] Univ Strasbourg, CNRS, IPHC DRS, F-67037 Strasbourg, France. [Augier, C.; Blondel, S.; Bongrand, M.; Garrido, X.; Jullian, S.; Lalanne, D.; Sarazin, X.; Simard, L.; Szklarz, G.] Univ Paris 11, CNRS, IN2P3, LAL, Orsay, France. [Baker, J.; Caffrey, A. J.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Barabash, A. S.; Konovalov, S. I.; Umatov, V.; Vanyushin, I.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Basharina-Freshville, A.; Flack, R.; Grozier, J.; Kauer, M.; Mott, J.; Richards, B.; Saakyan, R.; Thomas, J.; Torre, S.; Vasiliev, V.] UCL, London WC1E 6BT, England. [Broudin-Bay, G.; Hubert, Ph.; Hugon, C.; Kovalenko, V.; Lutter, G.; Marquet, Ch.; Nachab, A.; Nguyen, C. H.; Perrot, F.; Piquemal, F.; Ricol, J. S.] Univ Bordeaux, CENBG, UMR 5797, F-33175 Gradignan, France. [Broudin-Bay, G.; Hubert, Ph.; Hugon, C.; Kovalenko, V.; Lutter, G.; Marquet, Ch.; Nachab, A.; Nguyen, C. H.; Perrot, F.; Piquemal, F.; Ricol, J. S.] CEN Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France. [Brudanin, V.; Egorov, V.; Klimenko, A.; Kochetov, O.; Kovalenko, V.; Nemchenok, I.; Shitov, Yu.; Smolnikov, A.; Timkin, V.; Tretyak, V. I.; Vylov, Ts.] Joint Inst Nucl Res, Dubna 141980, Russia. [Chapon, A.; Durand, D.; Guillon, B.; Mauger, F.] Univ Caen, ENSICAEN, LPC, F-14032 Caen, France. [Chauveau, E.; Jackson, C. M.; Soeldner-Rembold, S.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Lamhamdi, T.] Univ Sidi Mohamed Ben Abdellah, Fes 30000, Morocco. [Lang, K.; Liptak, Z.; Nova, F.; Pahlka, R. B.] Univ Texas Austin, Austin, TX 78712 USA. [Mamedov, F.; Stekl, I.; Vala, L.] Czech Tech Univ, IEAP, CZ-12800 Prague, Czech Republic. [Martin-Albo, J.; Novella, P.] Univ Valencia, CSIC, IFIC, Valencia, Spain. [Nguyen, C. H.] Hanoi Univ Sci, Hanoi, Vietnam. [Ohsumi, H.] Saga Univ, Saga 8408502, Japan. [Reyss, J. L.] CNRS, LSCE, F-91190 Gif Sur Yvette, France. [Shitov, Yu.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Simkovic, F.] Comenius Univ, FMFI, SK-84248 Bratislava, Slovakia. [Suhonen, J.] Univ Jyvaskyla, SF-40351 Jyvaskyla, Finland. [Sutton, C. S.] Mt Holyoke Coll, S Hadley, MA 01075 USA. [Vorobel, V.; Zukauskas, A.] Charles Univ Prague, Fac Math & Phys, CZ-12116 Prague, Czech Republic. RP Arnold, R (reprint author), Univ Strasbourg, CNRS, IPHC DRS, F-67037 Strasbourg, France. RI Shitov, Yuri/J-2318-2012; Nemchenok, Igor/F-9715-2014; Novella, Pau/K-2845-2014; Vala, Ladislav/L-4938-2016; Barabash, Alexander/S-8851-2016 OI Novella, Pau/0000-0002-0923-3172; FU Grants Agencies of the Czech Republic; STFC (U.K.); NSF (U.S.); RFBR (Russia) FX We thank the staff at the Modane Underground Laboratory for its technical assistance in running the experiment and Vladimir Tretyak for providing the Monte Carlo event generator [14]. We acknowledge support by the Grants Agencies of the Czech Republic, RFBR (Russia), STFC (U.K.) and NSF (U.S.). NR 30 TC 44 Z9 45 U1 2 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 4 PY 2011 VL 107 IS 6 AR 062504 DI 10.1103/PhysRevLett.107.062504 PG 4 WC Physics, Multidisciplinary SC Physics GA 803DX UT WOS:000293562700003 PM 21902318 ER PT J AU Perez, F Debayle, A Honrubia, J Koenig, M Batani, D Baton, SD Beg, FN Benedetti, C Brambrink, E Chawla, S Dorchies, F Fourment, C Galimberti, M Gizzi, LA Gremillet, L Heathcote, R Higginson, DP Hulin, S Jafer, R Koester, P Labate, L Lancaster, KL MacKinnon, AJ MacPhee, AG Nazarov, W Nicolai, P Pasley, J Ramis, R Richetta, M Santos, JJ Sgattoni, A Spindloe, C Vauzour, B Vinci, T Volpe, L AF Perez, F. Debayle, A. Honrubia, J. Koenig, M. Batani, D. Baton, S. D. Beg, F. N. Benedetti, C. Brambrink, E. Chawla, S. Dorchies, F. Fourment, C. Galimberti, M. Gizzi, L. A. Gremillet, L. Heathcote, R. Higginson, D. P. Hulin, S. Jafer, R. Koester, P. Labate, L. Lancaster, K. L. MacKinnon, A. J. MacPhee, A. G. Nazarov, W. Nicolai, P. Pasley, J. Ramis, R. Richetta, M. Santos, J. J. Sgattoni, A. Spindloe, C. Vauzour, B. Vinci, T. Volpe, L. TI Magnetically Guided Fast Electrons in Cylindrically Compressed Matter SO PHYSICAL REVIEW LETTERS LA English DT Article ID TRANSPORT AB Fast electrons produced by a 10 ps, 160 J laser pulse through laser-compressed plastic cylinders are studied experimentally and numerically in the context of fast ignition. K(alpha)-emission images reveal a collimated or scattered electron beam depending on the initial density and the compression timing. A numerical transport model shows that implosion-driven electrical resistivity gradients induce strong magnetic fields able to guide the electrons. The good agreement with measured beam sizes provides the first experimental evidence for fast-electron magnetic collimation in laser-compressed matter. C1 [Perez, F.; Koenig, M.; Baton, S. D.; Brambrink, E.; Vinci, T.] UPMC, CEA, CNRS, LULI,Ecole Polytech, F-91128 Palaiseau, France. [Debayle, A.; Honrubia, J.; Ramis, R.] Univ Politecn Madrid, ETSI Aeronaut, E-28040 Madrid, Spain. [Batani, D.; Jafer, R.; Volpe, L.] Univ Milano Bicocca, Dipartimento Fis, Milan, Italy. [Beg, F. N.; Chawla, S.; Higginson, D. P.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Benedetti, C.; Sgattoni, A.] Univ Bologna, Dipartimento Fis, Bologna, Italy. [Chawla, S.; Higginson, D. P.; MacKinnon, A. J.; MacPhee, A. G.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Dorchies, F.; Fourment, C.; Hulin, S.; Nicolai, P.; Santos, J. J.; Vauzour, B.] Univ Bordeaux, CNRS, CEA, Ctr Lasers Intenses & Applicat CELIA, F-33405 Talence, France. [Galimberti, M.; Heathcote, R.; Lancaster, K. L.; Pasley, J.; Spindloe, C.] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England. [Gizzi, L. A.; Koester, P.; Labate, L.] CNR, UOS Adriano Gozzini, Ist Nazl Ott, ILIL, I-56100 Pisa, Italy. [Gremillet, L.] CEA, DAM, DIF, F-91297 Arpajon, France. [Nazarov, W.] Univ St Andrews, St Andrews KY16 9AJ, Fife, Scotland. [Pasley, J.] Univ York, Dept Phys, York Plasma Inst, York YO10 5DQ, N Yorkshire, England. [Richetta, M.] Univ Roma Tor Vergata, Dipartimento Ingn Meccan, I-00173 Rome, Italy. RP Perez, F (reprint author), UPMC, CEA, CNRS, LULI,Ecole Polytech, F-91128 Palaiseau, France. EM frederic.perez@polytechnique.edu RI Koenig, Michel/A-2167-2012; Brennan, Patricia/N-3922-2015; Gizzi, Leonida/F-4782-2011; RICHETTA, MARIA/I-8513-2012; Vauzour, Benjamin/N-8385-2013; Jafer, Rashida/K-2078-2014; Honrubia, Javier/L-6337-2014; MacKinnon, Andrew/P-7239-2014; Higginson, Drew/G-5942-2016 OI Gizzi, Leonida A./0000-0001-6572-6492; Honrubia, Javier/0000-0002-3024-4431; MacKinnon, Andrew/0000-0002-4380-2906; Higginson, Drew/0000-0002-7699-3788 FU HiPER project; EC; MSMT; STFC; Spanish Ministry of Education and Research [ENE2009-11668]; European SILMI program; GENCI-[CCRT/CINES] [2010-x2010056304] FX The authors acknowledge the support of the HiPER project and Preparatory Phase Funding Agencies (EC, MSMT and STFC) in undertaking this work. The numerical study was supported by Grant No. ENE2009-11668 of the Spanish Ministry of Education and Research and by the European SILMI program. The authors thankfully acknowledge the computer resources, technical expertise, and assistance provided by the CeSViMa. This work was performed using HPC resources from GENCI-[CCRT/CINES] (Grant No. 2010-x2010056304). NR 26 TC 29 Z9 29 U1 3 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 4 PY 2011 VL 107 IS 6 AR 065004 DI 10.1103/PhysRevLett.107.065004 PG 4 WC Physics, Multidisciplinary SC Physics GA 803DX UT WOS:000293562700005 PM 21902333 ER PT J AU Yao, MZ Li, YB Hossu, M Joly, AG Liu, ZX Liu, ZL Chen, W AF Yao, Mingzhen Li, Yuebin Hossu, Marius Joly, Alan G. Liu, Zhongxin Liu, Zuli Chen, Wei TI Luminescence of Lanthanide-Dimethyl Sulfoxide Compound Solutions SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID INTRAMOLECULAR ENERGY-TRANSFER; DIMETHYLSULFOXIDE DMSO; CANCER-TREATMENT; FLUORESCENCE; STATE; PHOTOLUMINESCENCE; NANOPARTICLES; COMPLEXES; NECROSIS; BARRIER AB Dimethyl sulfoxide (DMSO) has the ability to penetrate living tissues without causing significant damage. Of foremost importance to our understanding of the possible functions of DMSO in biological systems is its ability to replace some of the water molecules associated with the cellular constituents or to affect the structure of the omnipresent water. Luminescence probes have been widely used for biological studies such as labeling, imaging, and detection. Luminescence probes formed in DMSO may find new applications. Here luminescence compounds formed by refluxing lanthanide nitrates of Ce, La, Tb, Yb, Nd, Gd, and Eu in DMSO are reported and their luminescence properties investigated. On the basis of their luminescence spectral properties, the compounds can be classified into four classes. For compounds I with Yb, Ce, and La, the excitation and emission spectra are very broad and their excitation or emission peaks are shifted to longer wavelengths when the monitored emission or excitation wavelength is longer. For compounds II with Gd and Nd, both the excitation and emission spectra are very broad but their emission wavelengths change little at different excitation wavelengths. For Tb-DMSO as compound III, both the typical emissions from the f-f transitions of Tb3+ and a broad emission at 445 nm are observed. At low reaction temperatures, the f-f emissions are dominant, while at high reaction temperatures such as 180 degrees C, the broad emission at 445 nm is dominant. For compound IV, Eu-DMSO, the dominant emissions are from the f-f transitions of Eu3+ and only a weak broad emission is observed, which is likely from the d-f transition of Eu2+ rather than from metal-to-ligand charge transfer states. C1 [Yao, Mingzhen; Li, Yuebin; Hossu, Marius; Liu, Zhongxin; Chen, Wei] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA. [Li, Yuebin; Liu, Zuli] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China. [Joly, Alan G.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Liu, Zhongxin] Hainan Univ, Dept Mat & Chem Engn, Haikou 570228, Peoples R China. RP Chen, W (reprint author), Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA. EM weichen@uta.edu RI Li, Yuebin/D-6599-2011 FU University of Texas at Arlington; National Science Foundation; DHS [2008-DN-077-ARI016-03, CBET-1039068]; Department of Defense [DTRA08-005]; U.S. Army Medical Research Acquisition Activity [W81XWH-10-1-0279, W81XWH-10-1-0234]; Department of Energy's Office of Biological and Environmental Research; U.S. Department of Energy [DE-AC06-76RLO1830]; Pacific Northwest National Laboratory (PNNL) FX We acknowledge the support from the startup funds from the University of Texas at Arlington, the National Science Foundation and DHS joint ARI program (Grants 2008-DN-077-ARI016-03 and CBET-1039068), Department of Defense Grant DTRA08-005, and the U.S. Army Medical Research Acquisition Activity under Contracts W81XWH-10-1-0279 and W81XWH-10-1-0234. Part of the research described was performed at the W.R. Wiley Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at the Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the U.S. Department of Energy under Contract DE-AC06-76RLO1830. NR 46 TC 8 Z9 8 U1 0 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD AUG 4 PY 2011 VL 115 IS 30 BP 9352 EP 9359 DI 10.1021/jp202350p PG 8 WC Chemistry, Physical SC Chemistry GA 798GO UT WOS:000293190800003 PM 21707086 ER PT J AU Lewis, T Winter, B Stern, AC Baer, MD Mundy, CJ Tobias, DJ Hemminger, JC AF Lewis, Tanza Winter, Bernd Stern, Abraham C. Baer, Marcel D. Mundy, Christopher J. Tobias, Douglas J. Hemminger, John C. TI Dissociation of Strong Acid Revisited: X-ray Photoelectron Spectroscopy and Molecular Dynamics Simulations of HNO3 in Water SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID NITRIC-ACID; AQUEOUS-SOLUTIONS; DENSITY; INTERFACE; SURFACE AB Molecular-level insight into the dissociation of nitric acid in water is obtained from X-ray photoelectron spectroscopy and first-principles molecular dynamics (MD) simulations. Our combined studies reveal surprisingly abrupt changes in solvation configurations of undissociated nitric acid at approximately 4 M concentration. Experimentally, this is inferred from shifts of the N1s binding energy of HNO3(aq) as a function of concentration and is associated with variations in the local electronic structure of the nitrogen atom. It also shows up as a discontinuity in the degree of dissociation as a function of concentration, determined here from the N1s photoelectron signal intensity, which can be separately quantified for undissociated HNO3(aq) and dissociated NO3-(aq). Inter-molecular interactions within the nitric acid solution are discussed on the basis of MD simulations, which reveal that molecular HNO3 interacts remarkably weakly with solvating water molecules at low concentration; around 4 M there is a turnover to a more structured solvation shell, accompanied by an increase in hydrogen bonding between HNO3 and water. We suggest that the driving force behind the more structured solvent configuration of HNO3 is the overlap of nitric acid solvent shells that sets in around, 4 M concentration. C1 [Lewis, Tanza; Stern, Abraham C.; Tobias, Douglas J.; Hemminger, John C.] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. [Winter, Bernd] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany. [Baer, Marcel D.; Mundy, Christopher J.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. [Winter, Bernd] BESSY, D-12489 Berlin, Germany. RP Tobias, DJ (reprint author), Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. RI Tobias, Douglas/B-6799-2015; Winter, Bernd/D-4657-2011; Baer, Marcel/K-7664-2012 FU NSF [CHE 0431312]; Deutsche Forschungsgemeinschaft [WI 1327/3-1]; Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy [DE AC06-76RLO 1830]; Office of Science of the U.S. DOE [DE-AC02-06CH11357]; PNNL; Battelle Memorial Institute FX AirUCI under Grant CHE 0431312 from the NSF supported this work. Additional support from the Deutsche Forschungsgemeinschaft (Project WI 1327/3-1) is gratefully acknowledged. The work at Pacific Northwest National Laboratory (PNNL) was performed under the auspices of the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy, under Contract No. DE AC06-76RLO 1830 with Battelle Memorial Institute, which operates PNNL. The molecular dynamics simulations utilized the BlueGene/P at Argonne National Laboratory (resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. DOE under Contract No. DE-AC02-06CH11357) under an INCITE 2007-2010 award as well as computational resources from the National Energy Research Supercomputing Center (NERSC) at Lawrence Berkeley National Laboratory, the Molecular Sciences Computing Facility at PNNL, and the,University of California Shared Research Computing Services (ShaRCS) pilot project. M.D.B. is grateful for the support of the Linus Pauling Distinguished Postdoctoral Fellowship program at PNNL. Manfred Faubel is gratefully acknowledged for help with the experimental technology and broad ranging discussions. NR 27 TC 24 Z9 24 U1 1 U2 36 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD AUG 4 PY 2011 VL 115 IS 30 BP 9445 EP 9451 DI 10.1021/jp205510q PG 7 WC Chemistry, Physical SC Chemistry GA 798GO UT WOS:000293190800015 PM 21688845 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Baneree, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Bolton, TA Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Christoudias, T Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Das, A Davies, G De, K de Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Gadfort, T Garcia-Bellido, A Gavrilov, V Gay, P Geist, W Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guillemin, T Guo, F Gutierrez, G Gutierrez, R Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, JJ Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hubacek, Z Huske, N Hynek, V Lashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jamin, D Jayasinghe, A Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kulikov, S Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, R Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M de Sa, RL Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Miconi, F Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Padilla, M Pal, A Pangilinan, M Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petridis, K Petrillo, G Petroff, R Piegaia, R Piper, J Pleier, MA Podesta-Lermaa, PLM Podstavkov, VM Pol, ME Polozov, R Popov, AV Prewitt, M Price, D Prokopenko, N Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, R Rijssenbeek, M Ripp-Baudots, I Rizatdinova, F Rominsky, M Ross, A Royon, C Rubinov, R Ruchti, R Safronov, G Sajot, G Salcido, P Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, R Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Soustruznik, K Stark, J Stolin, V Stoyanova, DA Strauss, M Strom, D Stutte, L Suter, L Svoisky, R Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsai, YT Tsybychev, D Tuchming, B Tully, C Tuts, PM Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vint, R Vokac, R Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L White, A Wicke, D Williams, MRJ Wilson, GW Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, VA Ye, Z Yin, H Yip, K Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Baneree, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Bolton, T. A. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. Chevalier-Thery, S. Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Christoudias, T. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Das, A. Davies, G. De, K. de Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Gadfort, T. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geist, W. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph. Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guillemin, T. Guo, F. Gutierrez, G. Gutierrez, R. Haas, A. Hagopian, S. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J. M. Hays, J. J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A. P. Heintz, U. Hensel, C. Heredia-De La Cruz, I. Herner, K. Hesketh, G. Hildreth, M. D. Hirosky, R. Hoang, T. Hobbs, J. D. Hoeneisen, B. Hohlfeld, M. Hubacek, Z. Huske, N. Hynek, V. Lashvili, I. Illingworth, R. Ito, A. S. Jabeen, S. Jaffre, M. Jamin, D. Jayasinghe, A. Jesik, R. Johns, K. Johnson, M. Johnston, D. Jonckheere, A. Jonsson, P. Joshi, J. Juste, A. Kaadze, K. Kajfasz, E. Karmanov, D. Kasper, P. A. Katsanos, I. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y. N. Khatidze, D. Kirby, M. H. Kohli, J. M. Kozelov, A. V. Kraus, J. Kulikov, S. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V. A. Kvita, J. Lammers, S. Landsberg, G. Lebrun, R. Lee, H. S. Lee, S. W. Lee, W. M. Lellouch, J. Li, L. Li, Q. Z. Lietti, S. M. Lim, J. K. Lincoln, D. Linnemann, J. Lipaev, V. V. Lipton, R. Liu, Y. Liu, Z. Lobodenko, A. Lokajicek, M. de Sa, R. Lopes Lubatti, H. J. Luna-Garcia, R. Lyon, A. L. Maciel, A. K. A. Mackin, D. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V. L. Maravin, Y. Martinez-Ortega, J. McCarthy, R. McGivern, C. L. Meijer, M. M. Melnitchouk, A. Menezes, D. Mercadante, P. G. Merkin, M. Meyer, A. Meyer, J. Miconi, F. Mondal, N. K. Muanza, G. S. Mulhearn, M. Nagy, E. Naimuddin, M. Narain, M. Nayyar, R. Neal, H. A. Negret, J. P. Neustroev, P. Novaes, S. F. Nunnemann, T. Obrant, G. Orduna, J. Osman, N. Osta, J. Otero y Garzon, G. J. Padilla, M. Pal, A. Pangilinan, M. Parashar, N. Parihar, V. Park, S. K. Parsons, J. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, K. Peters, Y. Petridis, K. Petrillo, G. Petroff, R. Piegaia, R. Piper, J. Pleier, M. -A. Podesta-Lermaa, P. L. M. Podstavkov, V. M. Pol, M. -E. Polozov, R. Popov, A. V. Prewitt, M. Price, D. Prokopenko, N. Protopopescu, S. Qian, J. Quadt, A. Quinn, B. Rangel, M. S. Ranjan, K. Ratoff, P. N. Razumov, I. Renkel, R. Rijssenbeek, M. Ripp-Baudots, I. Rizatdinova, F. Rominsky, M. Ross, A. Royon, C. Rubinov, R. Ruchti, R. Safronov, G. Sajot, G. Salcido, P. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, R. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Soustruznik, K. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, R. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Tuts, P. M. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vint, R. Vokac, R. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, V. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Measurement of spin correlation in t(t)over-bar production using dilepton final states SO PHYSICS LETTERS B LA English DT Article DE Top quark; Spin; QCD ID POLARIZED TOP QUARKS; P(P)OVER-BAR COLLISIONS; HADRON COLLIDERS; PAIR PRODUCTION; DECAY; DETECTOR; EVENTS AB We measure the correlation between the spin of the top quark and the spin of the anti-top quark in t (t) over bar -> W(+)bW(-)(b) over bar -> l(+)vbl(-) (v) over bar(b) over bar final states produced in p (p) over bar collisions at a center of mass energy root s = 1.96 TeV, where l is an electron or muon. The data correspond to an integrated luminosity of 5.4 fb(-1) and were collected with the D0 detector at the Fermilab Tevatron collider. The correlation is extracted from the angles of the two leptons in the t and (t) over bar rest frames, yielding a correlation strength C = 0.10(-0.45)(+0.45). in agreement with the NLO QCD prediction within two standard deviations, but also in agreement with the no correlation hypothesis. (C) 2011 Elsevier B.V. All rights reserved. C1 [Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, V. A.] Joint Inst Nucl Res, Dubna, Russia. [Otero y Garzon, G. J.; Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina. [Alves, G. A.; Maciel, A. K. A.; Pol, M. -E.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil. [Barreto, J.; Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil. [Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Lietti, S. M.; Novaes, S. F.; Santos, A. S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil. [Beale, S.; Liu, Z.; Taylor, W.] Simon Fraser Univ, Vancouver, BC, Canada. [Beale, S.; Liu, Z.; Taylor, W.] York Univ, Toronto, ON M3J 2R7, Canada. [Han, L.; Liu, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Avila, C.; Negret, J. P.] Univ Los Andes, Bogota, Colombia. [Kvita, J.; Soustruznik, K.] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic. [Hubacek, Z.; Hynek, V.; Simak, V.; Vokac, R.] Czech Tech Univ, CR-16635 Prague, Czech Republic. [Kupco, A.; Lokajicek, M.] Acad Sci Czech Republic, Inst Phys, Ctr Particle Phys, Prague, Czech Republic. [Hoeneisen, B.] Univ San Francisco Quito, Quito, Ecuador. [Badaud, F.; Gay, P.; Gris, Ph.] Univ Clermont Ferrand, LPC, CNRS, IN2P3, Clermont, France. [Sajot, G.; Stark, J.] Univ Grenoble 1, CNRS, Inst Natl Polytech Grenoble, LPSC,IN2P3, Grenoble, France. [Calpas, B.; Cousinou, M. -C.; Duperrin, A.; Geng, W.; Jamin, D.; Kajfasz, E.; Kermiche, S.; Muanza, G. S.; Nagy, E.; Osman, N.] Aix Marseille Univ, CNRS, IN2P3, CPPM, Marseille, France. [Grivaz, J. -F.; Guillemin, T.; Jaffre, M.; Petroff, R.] Univ Paris 11, CNRS, IN2P3, LAL, F-91405 Orsay, France. [Bernardi, G.; Brown, D.; Brown, J.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 06, LPNHE, Paris, France. [Bernardi, G.; Brown, D.; Brown, J.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 07, CNRS, IN2P3, Paris, France. [Bassler, U.; Besancon, M.; Couderc, F.; Croc, A.; Deliot, F.; Grohsjean, A.; Hubacek, Z.; Madar, R.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] CEA, Irfu, SPP, Saclay, France. [Geist, W.; Greder, S.; Miconi, F.; Ripp-Baudots, I.] Univ Strasbourg, IPHC, CNRS, IN2P3, Strasbourg, France. [Grenier, G.; Kurca, T.; Lebrun, R.; Verdier, P.] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France. [Grenier, G.; Kurca, T.; Lebrun, R.; Verdier, P.] Univ Lyon, Lyon, France. [Hebbeker, T.; Meyer, A.; Sonnenschein, L.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bernhard, R.] Univ Freiburg, Inst Phys, Freiburg, Germany. [Brandt, O.; Hensel, C.; Meyer, J.; Quadt, A.; Shabalina, E.] Univ Gottingen, Inst Phys 2, Gottingen, Germany. [Buescher, V.; Fiedler, F.; Hohlfeld, M.] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany. [Nunnemann, T.; Sanders, M. P.] Univ Munich, Munich, Germany. [Schliephake, T.; Wicke, D.] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany. [Beri, S. B.; Bhatnagar, V.; Dutt, S.; Joshi, J.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India. [Choudhary, B.; Dubey, A.; Naimuddin, M.; Nayyar, R.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Acharya, B. S.; Baneree, S.; Mondal, N. K.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India. [Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland. [Cho, S. W.; Choi, S.; Lee, H. S.; Lim, J. K.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea. [Camacho-Perez, E.; Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-De La Cruz, I.; Luna-Garcia, R.; Magana-Villalba, R.; Martinez-Ortega, J.; Podesta-Lermaa, P. L. M.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico. [van Leeuwen, W. M.] FOM Inst NIKHEF, Amsterdam, Netherlands. [van Leeuwen, W. M.] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands. [Ancu, L. S.; de Jong, S. J.; Filthaut, F.; Meijer, M. M.] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands. [Gavrilov, V.; Polozov, R.; Safronov, G.; Stolin, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Boos, E. E.; Bunichev, V.; Dudko, L. V.; Karmanov, D.; Kuzmin, V. A.; Merkin, M.; Perfilov, M.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Bezzubov, V. A.; Denisov, S. P.; Evdokimov, V. N.; Kozelov, A. V.; Kulikov, S.; Lipaev, V. V.; Popov, A. V.; Prokopenko, N.; Razumov, I.; Shchukin, A. A.; Stoyanova, D. A.; Vasilyev, I. A.] Inst High Energy Phys, Protvino, Russia. [Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Juste, A.] ICREA, Barcelona, Spain. [Juste, A.] IFAE, Barcelona, Spain. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Ratoff, P. N.; Ross, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Christoudias, T.; Davies, G.; Hays, J. J.; Jesik, R.; Jonsson, P.; Scanlon, T.; Vint, R.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Harder, K.; Head, T.; Hesketh, G.; Peters, K.; Peters, Y.; Petridis, K.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Xie, Y.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, R.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Salcido, P.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Carrasco-Lizarraga, M. A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T. A.; Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Lashvili, I.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, R.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; de Sa, R. Lopes; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, R.; Jayasinghe, A.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, R.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.; Zivkovic, L.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Pal, A.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, R.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Orduna, J.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI Bolton, Tim/A-7951-2012; bu, xuebing/D-1121-2012; Mercadante, Pedro/K-1918-2012; Alves, Gilvan/C-4007-2013; Yip, Kin/D-6860-2013; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Fisher, Wade/N-4491-2013; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; OI Yip, Kin/0000-0002-8576-4311; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias, Theodoros/0000-0001-9050-3880; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Price, Darren/0000-0003-2750-9977; Belanger-Champagne, Camille/0000-0003-2368-2617 FU DOE; NSF (USA); CEA; CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq; FAPERJ; FAPESP; FUNDUNESP (Brazil); DAE; DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF; KOSEF (Korea); CONICET; UBACyT (Argentina); FOM (The Netherlands); STFC; Royal Society (United Kingdom); MSMT; GACR (Czech Republic); CRC; NSERC (Canada); BMBF; DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); CAS; CNSF (China) FX We wish to thank W. Bernreuther, S.J. Parke, and P. Uwer for fruitful discussions regarding this analysis. We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 44 TC 34 Z9 34 U1 3 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 3 PY 2011 VL 702 IS 1 BP 16 EP 23 DI 10.1016/j.physletb.2011.05.077 PG 8 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 810QQ UT WOS:000294142600004 ER PT J AU Liu, Z Seweryniak, D Woods, PJ Davids, CN Carpenter, MP Davinson, T Janssens, RVF Page, RD Robinson, AP Shergur, J Sinha, S Tang, XD Xu, FR Zhu, S AF Liu, Z. Seweryniak, D. Woods, P. J. Davids, C. N. Carpenter, M. P. Davinson, T. Janssens, R. V. F. Page, R. D. Robinson, A. P. Shergur, J. Sinha, S. Tang, X. D. Xu, F. R. Zhu, S. TI Structure of the proton emitter La-117 studied by proton and gamma-ray spectroscopy SO PHYSICS LETTERS B LA English DT Article DE Proton radioactivity; In-beam gamma spectroscopy; Deformed nuclei; Proton emitting state configuration ID DEFORMED-NUCLEI; NEUTRON; RADIOACTIVITY; ALIGNMENT; ISOTOPES; DECAY AB Proton radioactivity from La-117 was re-investigated with much improved statistics and precision. Only the ground-state proton decay (E-p = 813(3) keV, T-1/2 = 20.1(25) ms) was observed, no evidence for a previously reported isomeric proton decay was found. Prompt gamma rays in 117La were identified using the Recoil-Decay Tagging method. Overall the data indicate that the proton-emitting state is associated with a K-pi = 3/2(+) configuration, in agreement with all the published proton-decay calculations and predictions for the ground-state configuration of La-117 calculated in the framework of either adiabatic or non-adiabatic particle models. However, this is not in agreement with the most recent state-of-the-art quasi-particle non-adiabatic model calculations which predict a K-pi = 7/2(-) configuration. (C) 2011 Elsevier B.V. All rights reserved. C1 [Liu, Z.; Woods, P. J.; Davinson, T.; Robinson, A. P.] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland. [Seweryniak, D.; Davids, C. N.; Carpenter, M. P.; Janssens, R. V. F.; Sinha, S.; Tang, X. D.; Zhu, S.] Argonne Natl Lab, Argonne, IL 60439 USA. [Page, R. D.] Univ Liverpool, Dept Phys, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England. [Shergur, J.] Univ Maryland, Dept Chem, College Pk, MD 20742 USA. [Xu, F. R.] Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China. RP Liu, Z (reprint author), Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland. EM zliu@ph.ed.ac.uk RI Xu, Furong/K-4178-2013; Carpenter, Michael/E-4287-2015 OI Carpenter, Michael/0000-0002-3237-5734 FU US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; UK Science and Technology Facilities Council (STFC) FX This work is supported by the US Department of Energy, Office of Nuclear Physics, under Contract Number DE-AC02-06CH11357 and the UK Science and Technology Facilities Council (STFC). NR 25 TC 4 Z9 4 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 3 PY 2011 VL 702 IS 1 BP 24 EP 27 DI 10.1016/j.physletb.2011.06.058 PG 4 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 810QQ UT WOS:000294142600005 ER PT J AU Schenke, B Jeon, S Gale, C AF Schenke, Bjoern Jeon, Sangyong Gale, Charles TI Anisotropic flow in root s=2.76 TeV Pb + Pb collisions at the LHC SO PHYSICS LETTERS B LA English DT Article DE Heavy-ion collisions; Flow; Viscous hydrodynamics ID TRANSIENT RELATIVISTIC THERMODYNAMICS; HEAVY-ION COLLISIONS; NUCLEAR COLLISIONS; KINETIC-THEORY; ELLIPTIC FLOW; SPECTRA AB The results on p(T)-differential elliptic flow in 2.76 TeV Pb+Pb collisions at the Large Hadron Collider (LHC) reported by the ALICE Collaboration are remarkably similar to those for is root s = 200 GeV gold-gold collisions at the Relativistic Heavy Ion Collider (RHIC). This result is surprising, given the expected longer lifetime of the system at the higher collision energies. We show that it is nevertheless consistent with (3+1)-dimensional viscous event-by-event hydrodynamic calculations, and demonstrate that elliptic flow at both RHIC and LHC is built up mostly within the first similar to 5 fm/c of the evolution. We conclude that an "almost perfect liquid" is produced in heavy-ion collisions at the LHC. Furthermore, we present predictions for triangular flow as a function of transverse momentum for different centralities. (C) 2011 Elsevier B.V. All rights reserved. C1 [Schenke, Bjoern] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Jeon, Sangyong; Gale, Charles] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. RP Schenke, B (reprint author), Brookhaven Natl Lab, Dept Phys, Bldg 510A, Upton, NY 11973 USA. EM bschenke@quark.phy.bnl.gov FU Natural Sciences and Engineering Research Council of Canada; US Department of Energy [DE-AC02-98CH10886]; Brookhaven Science Associates FX B.P.S. thanks Adrian Dumitru and Raju Venugopalan for fruitful discussions. We thank R. Snellings for providing the experimental data. This work was supported in part by the Natural Sciences and Engineering Research Council of Canada. B.P.S. was supported in part by the US Department of Energy under DOE Contract No. DE-AC02-98CH10886 and by a Lab Directed Research and Development Grant from Brookhaven Science Associates. NR 43 TC 106 Z9 106 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 3 PY 2011 VL 702 IS 1 BP 59 EP 63 DI 10.1016/j.physletb.2011.06.065 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 810QQ UT WOS:000294142600011 ER PT J AU Xiong, SS Molecke, R Bosch, M Schunk, PR Brinker, CJ AF Xiong, Shisheng Molecke, Ryan Bosch, Matthew Schunk, P. Randall Brinker, C. Jeffrey TI Transformation of a Close-Packed Au Nanoparticle/Polymer Monolayer into a Large Area Array of Oriented Au Nanowires via E-beam Promoted Uniaxial Deformation and Room Temperature Sintering SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID BLOWN BUBBLE-FILMS; LARGE-SCALE; GOLD NANOPARTICLES; CARBON NANOTUBES; ELECTRIC-FIELD; NANOSTRUCTURES; NANOCRYSTALS; ELECTRONICS; INTEGRATION; TEMPLATES AB Transformation of 2D Au nanoparticle (NP) arrays into large scale, ordered, and oriented nanorod/nanowire arrays supported on a transferrable polymer film has been accomplished. E-beam irradiation followed by room temperature aging of a suspended Au NP/polyrnethyl-methacrylate (PMMA) polymer close packed monolayer results in one-dimensional nanoparticle aggregation, reorientation, and sintering into a high density array of oriented Au nanowires with coherent single-crystal-like interfaces. Molecular dynamics simulations of alkane-thiol capped Au NPs, interacting through the Vincent potential and undergoing 2D Poisson compression, account semiquantitatively for the qualitative features of the transformation. This fabrication approach should be extendable to directing 1D aggregation of highly anisotropic nanostructures in arbitrary NP systems. C1 [Xiong, Shisheng; Molecke, Ryan; Bosch, Matthew; Brinker, C. Jeffrey] Univ New Mexico, Dept Chem & Nucl Engn, NSF UNM Ctr Microengn Mat, Albuquerque, NM 87131 USA. [Xiong, Shisheng; Schunk, P. Randall; Brinker, C. Jeffrey] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA. RP Brinker, CJ (reprint author), Univ New Mexico, Dept Chem & Nucl Engn, NSF UNM Ctr Microengn Mat, Albuquerque, NM 87131 USA. EM cjbrink@sandia.gov FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-FG02-02-ER15368]; DOE Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; National Institute for Nano Engineering (NINE) at Sandia National Laboratories; Sandia National Laboratories; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences Grant DE-FG02-02-ER15368; the DOE Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; the National Institute for Nano Engineering (NINE) program at Sandia National Laboratories; and the Sandia National Laboratories' Laboratory Directed Research and Development (LDRD) program. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Company, for the U.S. Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. NR 35 TC 4 Z9 4 U1 4 U2 33 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 3 PY 2011 VL 133 IS 30 BP 11410 EP 11413 DI 10.1021/ja202446t PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 807DA UT WOS:000293872800004 PM 21711045 ER PT J AU Hesp, KD Bergman, RG Ellman, JA AF Hesp, Kevin D. Bergman, Robert G. Ellman, Jonathan A. TI Expedient Synthesis of N-Acyl Anthranilamides and beta-Enamine Amides by the Rh(III)-Catalyzed Amidation of Aryl and Vinyl C-H Bonds with Isocyanates SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID COUPLING REACTIONS; INTERNAL ALKYNES; RHODIUM; ACTIVATION; HYDROARYLATION; ALKENES; QUINAZOLINONES; ACRYLATES; CATALYSIS; NITRILES AB A Rh(III)-catalyzed protocol for the amidation of anilide and enamide C H bonds with isocyanates has been developed. This method provides direct and efficient syntheses of N-acyl anthranilamides, enamine amides, and pyrimidin-4-one heterocycles. C1 [Bergman, Robert G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Bergman, Robert G.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Hesp, Kevin D.; Ellman, Jonathan A.] Yale Univ, Dept Chem, New Haven, CT 06520 USA. RP Bergman, RG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM rbergman@berkeley.edu; jonathan.ellman@yale.edu RI Ellman, Jonathan/C-7732-2013 FU NIH [GM069559]; Office of Energy Research, Office of Basic Energy Science, Chemical Sciences Division, U.S. Department of Energy [DE-AC02-05CH11231]; National Sciences and Engineering Research Council of Canada (NSERC) FX This work was supported by the NIH Grant GM069559 (to J.A.E.) and by the Director, Office of Energy Research, Office of Basic Energy Science, Chemical Sciences Division, U.S. Department of Energy under Contract DE-AC02-05CH11231 (to R.G.B.). K.D.H. is grateful to the National Sciences and Engineering Research Council of Canada (NSERC) for a postdoctoral fellowship. NR 37 TC 162 Z9 162 U1 6 U2 63 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 3 PY 2011 VL 133 IS 30 BP 11430 EP 11433 DI 10.1021/ja203495c PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 807DA UT WOS:000293872800009 PM 21714533 ER PT J AU Yang, F Choi, Y Liu, P Stacchiola, D Hrbek, J Rodriguez, JA AF Yang, Fan Choi, YongMan Liu, Ping Stacchiola, Dario Hrbek, Jan Rodriguez, Jose A. TI Identification of 5-7 Defects in a Copper Oxide Surface SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID OXYGEN-INDUCED RECONSTRUCTIONS; GAS SHIFT REACTION; CARBON NANOTUBES; NANOPARTICLES; CU(111); WATER; REDUCTION; OXIDATION; CU2O; CENTERS AB A topological defect in a Cu(2)O surface oxide grown on Cu(111) has been identified. Using scanning tunneling microscopy, we observed the formation of pentagonal and heptagonal rings within the Cu(2)O surface oxide. These structures break the symmetry of the hexagonal oxide surface and are a consequence of the presence of oxygen vacancies in the Cu(2)O surface. We propose that the pentagonal and heptagonal rings are formed through the rotation of a -O-Cu-O- chain in a manner similar to the Stone-Wales transformation. The proposed transformation is supported by the results of density functional theory calculations. C1 [Yang, Fan; Choi, YongMan; Liu, Ping; Stacchiola, Dario; Hrbek, Jan; Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM rodrigez@bnl.gov RI Stacchiola, Dario/B-1918-2009; Hrbek, Jan/I-1020-2013; Choi, YongMan/N-3559-2014; YANG, FAN/J-2706-2012 OI Stacchiola, Dario/0000-0001-5494-3205; Choi, YongMan/0000-0003-4276-1599; YANG, FAN/0000-0002-1406-9717 FU U.S. Department of Energy (Chemical Sciences Division) [DE-AC02-98CH10886, DE-AC02-05CH11231] FX The authors thank the U.S. Department of Energy (Chemical Sciences Division, Grants DE-AC02-98CH10886 and DE-AC02-05CH11231) for financial support. DFT calculations were carried out at Center for Functional Nanomaterials at Brookhaven National Laboratory and the National Energy Research Scientific Computing (NERSC) Center. F.Y. is grateful to Huagen Yu for helpful discussions. NR 33 TC 33 Z9 33 U1 8 U2 81 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 3 PY 2011 VL 133 IS 30 BP 11474 EP 11477 DI 10.1021/ja204652v PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 807DA UT WOS:000293872800020 PM 21714558 ER PT J AU Stevanovic, V d'Avezac, M Zunger, A AF Stevanovic, Vladan d'Avezac, Mayeul Zunger, Alex TI Universal Electrostatic Origin of Cation Ordering in A(2)BO(4) Spinel Oxides SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID THERMODYNAMICS; ORTHOTITANATE; DIFFRACTION; MANGANESE AB The crystal structures of A(2)BO(4) spinet oxides are classified as either normal or inverse, representing different distributions of the A and B cations over the tetrahedrally and octahedrally coordinated cation sites. These structures undergo characteristic structural changes as a function of temperature: (i) the nominally disordered inverse structure orders crystallographically at low T, and (ii) at finite temperatures, both inverse and normal develop characteristic distributions of cations associated with order disorder structural changes. We show here that all of these universal features emerge naturally from a simple point-ion electrostatic (PIE) model with a single adjustable parameter. Monte Carlo simulations of the PIE Hamiltonian provide quantitative order disorder characteristic temperatures. We show that, with the help of the PIE model, the magnitude of the temperatures can be inferred from the nominal charges of the atomic species in the spinet. Indeed, we show that characteristic order-disorder temperatures in 3-2 spinets (nominal charges Z(A) = 3 and Z(B) = 2) are approximately an order of magnitude lower than in 2-4 spinets, thus explaining why typical 3-2 samples exhibit much larger degrees of disorder than those belonging to the 2-4 class. C1 [Stevanovic, Vladan; d'Avezac, Mayeul; Zunger, Alex] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Stevanovic, V (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM vladan.stevanovic@nrel.gov RI Zunger, Alex/A-6733-2013; OI d'Avezac, Mayeul/0000-0002-2615-8397 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, Energy Frontier Research Centers [DE-AC36-08GO28308]; Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy [DE-AC36-08GO28308] FX This research is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, Energy Frontier Research Centers, under Award DE-AC36-08GO28308 to NREL. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract DE-AC02-05CH11231 as well as capabilities of the National Renewable Energy Laboratory Computational Sciences Center, which is supported by the Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy under Contract DE-AC36-08GO28308. NR 29 TC 22 Z9 22 U1 3 U2 38 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 3 PY 2011 VL 133 IS 30 BP 11649 EP 11654 DI 10.1021/ja2034602 PG 6 WC Chemistry, Multidisciplinary SC Chemistry GA 807DA UT WOS:000293872800045 PM 21702454 ER PT J AU Giannone, RJ Huber, H Karpinets, T Heimerl, T Kuper, U Rachel, R Keller, M Hettich, RL Podar, M AF Giannone, Richard J. Huber, Harald Karpinets, Tatiana Heimerl, Thomas Kueper, Ulf Rachel, Reinhard Keller, Martin Hettich, Robert L. Podar, Mircea TI Proteomic Characterization of Cellular and Molecular Processes that Enable the Nanoarchaeum equitans-Ignicoccus hospitalis Relationship SO PLOS ONE LA English DT Article ID SET ENRICHMENT ANALYSIS; QUANTITATIVE PROTEOMICS; SHOTGUN PROTEOMICS; MASS-SPECTROMETRY; OUTER-MEMBRANE; PROTEIN; ARCHAEA; INSIGHTS; GENOME; DATABASE AB Nanoarchaeum equitans, the only cultured representative of the Nanoarchaeota, is dependent on direct physical contact with its host, the hyperthermophile Ignicoccus hospitalis. The molecular mechanisms that enable this relationship are unknown. Using whole-cell proteomics, differences in the relative abundance of >75% of predicted protein-coding genes from both Archaea were measured to identify the specific response of I. hospitalis to the presence of N. equitans on its surface. A purified N. equitans sample was also analyzed for evidence of interspecies protein transfer. The depth of cellular proteome coverage achieved here is amongst the highest reported for any organism. Based on changes in the proteome under the specific conditions of this study, I. hospitalis reacts to N. equitans by curtailing genetic information processing (replication, transcription) in lieu of intensifying its energetic, protein processing and cellular membrane functions. We found no evidence of significant Ignicoccus biosynthetic enzymes being transported to N. equitans. These results suggest that, under laboratory conditions, N. equitans diverts some of its host's metabolism and cell cycle control to compensate for its own metabolic shortcomings, thus appearing to be entirely dependent on small, transferable metabolites and energetic precursors from I. hospitalis. C1 [Giannone, Richard J.; Hettich, Robert L.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Huber, Harald; Heimerl, Thomas; Kueper, Ulf; Rachel, Reinhard] Univ Regensburg, Lehrstuhl Mikrobiol, D-8400 Regensburg, Germany. [Huber, Harald; Heimerl, Thomas; Kueper, Ulf; Rachel, Reinhard] Univ Regensburg, Archaeenzentrum, Regensburg, Germany. [Karpinets, Tatiana; Keller, Martin; Podar, Mircea] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA. [Podar, Mircea] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. RP Giannone, RJ (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM podarm@ornl.gov RI Keller, Martin/C-4416-2012; Hettich, Robert/N-1458-2016; OI Hettich, Robert/0000-0001-7708-786X; Podar, Mircea/0000-0003-2776-0205 FU U.S. Department of Energy Office of Science, Biological and Environmental Research; ORNL; U.S. Department of Energy [DE-AC05-00OR22725]; Deutsche Forschungsgemeinschaft FX RJG, TK, MK, RLH and MP were sponsored by the U.S. Department of Energy Office of Science, Biological and Environmental Research programs at Oak Ridge National Laboratory (ORNL) and by the Laboratory Directed Research and Development Program of ORNL. ORNL is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. HH, TH, UK and RR were supported by funding from the Deutsche Forschungsgemeinschaft. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 44 TC 26 Z9 27 U1 1 U2 10 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 3 PY 2011 VL 6 IS 8 AR e22942 DI 10.1371/journal.pone.0022942 PG 19 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 803CQ UT WOS:000293558900046 PM 21826220 ER PT J AU Shumay, E Chen, J Fowler, JS Volkow, ND AF Shumay, Elena Chen, John Fowler, Joanna S. Volkow, Nora D. TI Genotype and Ancestry Modulate Brain's DAT Availability in Healthy Humans SO PLOS ONE LA English DT Article ID DOPAMINE TRANSPORTER GENE; ATTENTION-DEFICIT/HYPERACTIVITY DISORDER; DEFICIT HYPERACTIVITY DISORDER; STRIATAL D2 RECEPTORS; VARIABLE NUMBER; TANDEM REPEATS; IN-VIVO; ADHD; VNTR; POLYMORPHISMS AB The dopamine transporter (DAT) is a principal regulator of dopaminergic neurotransmission and its gene (the SLC6A3) is a strong biological candidate gene for various behavioral- and neurological disorders. Intense investigation of the link between the SLC6A3 polymorphisms and behavioral phenotypes yielded inconsistent and even contradictory results. Reliance on objective brain phenotype measures, for example, those afforded by brain imaging, might critically improve detection of DAT genotype-phenotype association. Here, we tested the relationship between the DAT brain availability and the SLC6A3 genotypes using an aggregate sample of 95 healthy participants of several imaging studies. These studies employed positron emission tomography (PET) with [(11)C] cocaine wherein the DAT availability was estimated as Bmax/Kd; while the genotype values were obtained on two repeat polymorphisms -3-UTR- and intron 8-VNTRs. The main findings are the following: 1) both polymorphisms analyzed as single genetic markers and in combination (haplotype) modulate DAT density in midbrain; 2) ethnic background and age influence the strength of these associations; and 3) age-related changes in DAT availability differ in the 3-UTR and intron8 - genotype groups. C1 [Shumay, Elena; Fowler, Joanna S.] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. [Chen, John] SUNY Stony Brook, Dept Prevent Med, Stony Brook, NY 11794 USA. [Volkow, Nora D.] Natl Inst Drug Abuse, NIH, Bethesda, MD USA. RP Shumay, E (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. EM eshumay@bnl.gov FU National Institute on Drug Abuse [KO1 DA025280-01A1, K05 DA20001]; National Institutes of Health, NIDA FX This work was performed at Brookhaven National Laboratory with infrastructure support from the Department of Energy, Office of Biological and Environmental Research and funded by the National Institute on Drug Abuse, grants KO1 DA025280-01A1 (ES), K05 DA20001 (JSF) and National Institutes of Health Intramural Research Program, NIDA (NDV). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 70 TC 31 Z9 31 U1 1 U2 7 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 3 PY 2011 VL 6 IS 8 AR e22754 DI 10.1371/journal.pone.0022754 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 803CQ UT WOS:000293558900029 PM 21826203 ER PT J AU Yeager, JD Dubey, M Wolverton, MJ Jablin, MS Majewski, J Bahr, DF Hooks, DE AF Yeager, J. D. Dubey, M. Wolverton, M. J. Jablin, M. S. Majewski, J. Bahr, D. F. Hooks, D. E. TI Examining chemical structure at the interface between a polymer binder and a pharmaceutical crystal with neutron reflectometry SO POLYMER LA English DT Article DE Interfacial properties; Polymer composites; Neutron reflectometry ID MECHANICAL-PROPERTIES; REFLECTIVITY; GRANULATION; EXPLOSIVES; POWDERS; FORMULATION; PARTICLES; PBX-9501; MODEL; FILM AB The mechanical properties of many composites are determined in part by the chemical structure and bonding at the interface between constituents in the microstructure. The study of these interfaces in molecular crystal - polymer composites is difficult using traditional techniques such as electron microscopy or X-ray scattering because of weak or detrimental interactions between the probe and materials. Here, the interface between acetaminophen and a poly(ester urethane) copolymer is analyzed using ellipsometry, infrared spectroscopy, and neutron reflectometry. These materials were chosen for their relevance to pharmaceutical tablets and plastic-bonded explosives. The acetaminophen was shown to dissolve into the polymer coating and creates an interphase region between the two materials; this mixing is almost certainly produced by typical formulation conditions, and likely affects mechanical response of the composite. Additionally, reflectometry shows that plasticizing the polymer alters this interphase region. These techniques can be applied to similar composites to reveal the relation between formulation conditions, constituent interface microstructure characteristics, and bulk mechanical response. Published by Elsevier Ltd. C1 [Yeager, J. D.; Dubey, M.; Wolverton, M. J.; Jablin, M. S.; Majewski, J.] Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Bahr, D. F.] Washington State Univ, Pullman, WA 99164 USA. RP Yeager, JD (reprint author), Los Alamos Natl Lab, Lujan Neutron Scattering Ctr, MS P952, Los Alamos, NM 87545 USA. EM jyeager@lanl.gov RI Dubey, Manish/C-9946-2011; Bahr, David/A-6521-2012; Lujan Center, LANL/G-4896-2012; OI Bahr, David/0000-0003-2893-967X; Yeager, John/0000-0002-3121-6053 FU DOE/DoD; DOE Office of Basic Energy Sciences; Los Alamos National Laboratory under DOE [DE-AC52-06NA25396]; Los Alamos National Security, LLC [DE-AC52-06NA25396] FX Los Alamos National Laboratory is operated by LANS LLC for the Department of Energy. Funding for this work was provided by the DOE/DoD Joint Munitions Project. This work benefited from the use of the Lujan Neutron Scattering Center at LANSCE funded by the DOE Office of Basic Energy Sciences and Los Alamos National Laboratory under DOE Contract DE-AC52-06NA25396. This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. We particularly thank A. Dattelbaum (LANL) for assistance with ellipsometry measurements and analysis. NR 38 TC 12 Z9 13 U1 0 U2 15 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0032-3861 EI 1873-2291 J9 POLYMER JI Polymer PD AUG 3 PY 2011 VL 52 IS 17 BP 3762 EP 3768 DI 10.1016/j.polymer.2011.06.031 PG 7 WC Polymer Science SC Polymer Science GA 805XC UT WOS:000293763400013 ER PT J AU Forster, F Gergert, E Nuber, A Bentmann, H Huang, L Gong, XG Zhang, Z Reinert, F AF Forster, F. Gergert, E. Nuber, A. Bentmann, H. Huang, Li Gong, X. G. Zhang, Z. Reinert, F. TI Electronic localization of quantum-well states in Ag/Au(111) metallic heterostructures SO PHYSICAL REVIEW B LA English DT Article ID PHOTOEMISSION-SPECTROSCOPY; SURFACE-STATE; BAND-STRUCTURE; AG FILMS; AU(111); SUPERLATTICE; PSEUDOPOTENTIALS; AG(111); SYSTEM; W(110) AB We report on a detailed analysis of the evolution and spatial localization of quantum-well states (QWSs) in Ag layers on a Au(111) substrate by means of high-resolution photoelectron spectroscopy combined with model calculations based on a simple particle-in-a-box picture, the phase accumulation model, and density functional theory-based slab-layer calculations. Due to the finite electron escape depth we could link the photoemission intensity of the QWS to the simulated charge-density distribution and therewith confirm the calculated localization of these states. The first QWS starts to be localized within the Ag film at layer thicknesses >7 ML. C1 [Forster, F.; Gergert, E.; Nuber, A.; Bentmann, H.; Reinert, F.] Univ Wurzburg, D-97074 Wurzburg, Germany. [Forster, F.; Gergert, E.; Nuber, A.; Bentmann, H.; Reinert, F.] Rontgen Res Ctr Complex Mat RCCM, D-97074 Wurzburg, Germany. [Huang, Li; Gong, X. G.] Fudan Univ, Surface Phys Lab, Shanghai 200433, Peoples R China. [Huang, Li; Gong, X. G.] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China. [Huang, Li] US DOE, Ames Lab, Ames, IA 50011 USA. [Zhang, Z.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Zhang, Z.] Univ Sci & Technol China, ICQD HFNL, Hefei 230026, Anhui, Peoples R China. [Reinert, F.] KIT, Gemeinschaftslab Nanoanalyt, D-76021 Karlsruhe, Germany. RP Reinert, F (reprint author), Univ Wurzburg, D-97074 Wurzburg, Germany. EM reinert@physik.uni-wuerzburg.de RI Reinert, Friedrich/J-3005-2013; gong, xingao/D-6532-2011 FU Deutsche Forschungsgemeinschaft [FOR 1162, Re1469/5-1]; BMBF [05KS7WW1Y2]; US National Science Foundation [0906025] FX This work was supported generously by the Deutsche Forschungsgemeinschaft (Grants No. FOR 1162 and No. Re1469/5-1), the BMBF (05KS7WW1Y2), and in part by the US National Science Foundation (Grant No. 0906025). NR 48 TC 8 Z9 8 U1 1 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 3 PY 2011 VL 84 IS 7 AR 075412 DI 10.1103/PhysRevB.84.075412 PG 8 WC Physics, Condensed Matter SC Physics GA 801NB UT WOS:000293445500011 ER PT J AU Gray, AX Janotti, A Son, J LeBeau, JM Ueda, S Yamashita, Y Kobayashi, K Kaiser, AM Sutarto, R Wadati, H Sawatzky, GA Van de Walle, CG Stemmer, S Fadley, CS AF Gray, A. X. Janotti, A. Son, J. LeBeau, J. M. Ueda, S. Yamashita, Y. Kobayashi, K. Kaiser, A. M. Sutarto, R. Wadati, H. Sawatzky, G. A. Van de Walle, C. G. Stemmer, S. Fadley, C. S. TI Insulating state of ultrathin epitaxial LaNiO3 thin films detected by hard x-ray photoemission SO PHYSICAL REVIEW B LA English DT Article ID PHOTOELECTRON ANGULAR-DISTRIBUTION; ELECTRON-SPECTROSCOPY; PARAMETERS AB In order to understand the influence of strain and film thickness on the electronic structure of thin films of strongly correlated oxides, we have applied hard x-ray photoemission (HXPS) at 6 keV, soft x-ray photoemission (XPS) at 1.5 keV, and transmission electron microscopy to epitaxial LaNiO3 films deposited on two substrates: LaAlO3 (compressive strain) and (LaAlO3)(0.3)(Sr2AlTaO6)(0.7) (tensile strain). Using inelastic attenuation lengths in LaNiO3 determined from the HXPS data, we have decomposed valence-band spectra into layer-specific contributions. This decomposition is validated by comparing with the results of first-principles calculations using a hybrid functional. The resultant thin-film LaNiO3 densities of states exhibit significant differences in spectral weights for the thinnest LaNiO3 films. A gap opening consistent with a metal-to-insulator transition is observed for the thinnest 2.7 nm LaNiO3 film on an (LaAlO3)(0.3)(Sr2AlTaO6)(0.7) substrate, with a similar gap opening also being observed in complementary soft x-ray photoemission at 1.5 keV for a thinner 1.4 nm film on an LaAlO3 substrate. A metal-to-insulator transition in very thin nm-scale films of LaNiO3 is thus suggested as a general phenomenon. C1 [Gray, A. X.; Kaiser, A. M.; Fadley, C. S.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Gray, A. X.; Kaiser, A. M.; Fadley, C. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Janotti, A.; Son, J.; LeBeau, J. M.; Van de Walle, C. G.; Stemmer, S.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. [Ueda, S.; Yamashita, Y.; Kobayashi, K.] Natl Inst Mat Sci, NIMS Beamline Stn SPring 8, Mikazuki, Hyogo 6795148, Japan. [Sutarto, R.; Wadati, H.; Sawatzky, G. A.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. [Sutarto, R.] Univ Saskatchewan, Canadian Light Source, Saskatoon, SK S7N 0X4, Canada. RP Gray, AX (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. RI Gray, Alexander/F-9267-2011; Stemmer, Susanne/H-6555-2011; Van de Walle, Chris/A-6623-2012; Son, Junwoo/E-4587-2011; Sawatzky, George/D-2997-2012; MSD, Nanomag/F-6438-2012; UEDA, Shigenori/H-2991-2011; LeBeau, James/B-6370-2008; Janotti, Anderson/F-1773-2011; YAMASHITA, Yoshiyuki/H-2704-2011 OI Stemmer, Susanne/0000-0002-3142-4696; Van de Walle, Chris/0000-0002-4212-5990; Janotti, Anderson/0000-0001-5028-8338; FU ARO MURI [W911-NF-09-1-0398]; Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy [DE-AC02-05CH11231]; NSERC; NRC; CIHR; University of Saskatchewan FX We thank Leon Balents and S. James Allen for useful discussion and insightful comments on the manuscript. The authors acknowledge support from the ARO MURI Grant W911-NF-09-1-0398. CSF also acknowledges salary support from the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy under contract number DE-AC02-05CH11231. The authors are grateful to HiSOR, Hiroshima University, and JAEA/SPring-8 for the development of HXPS at BL15XU of SPring-8. The experiments at BL15XU were performed under the approval of NIMS Beamline Station (Proposal No. 2009A4906). The research at the CLS is supported by NSERC, NRC, CIHR, and the University of Saskatchewan. NR 26 TC 20 Z9 20 U1 2 U2 54 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD AUG 3 PY 2011 VL 84 IS 7 AR 075104 DI 10.1103/PhysRevB.84.075104 PG 6 WC Physics, Condensed Matter SC Physics GA 801NB UT WOS:000293445500003 ER PT J AU Hu, FM Ma, TX Lin, HQ Gubernatis, JE AF Hu, F. M. Ma, Tianxing Lin, Hai-Qing Gubernatis, J. E. TI Magnetic impurities in graphene SO PHYSICAL REVIEW B LA English DT Article ID GAPLESS FERMI SYSTEMS; RENORMALIZATION-GROUP; ANDERSON; METALS; PHASE AB We used a quantum Monte Carlo method to study the magnetic impurity adatoms on graphene. We found that by tuning the chemical potential we could switch the values of the impurity local magnet moment between relatively large and small values. Our computations of the impurity spectral density found its behavior to differ significantly from that of an impurity in a normal metal and our computations of the charge-charge and spin-spin correlations between the impurity and the conduction-band electrons found them to be strongly suppressed. In general, our results are consistent with those from poor man's scaling and numerical renormalization group methods. C1 [Hu, F. M.; Lin, Hai-Qing] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China. [Hu, F. M.; Lin, Hai-Qing] Chinese Univ Hong Kong, Inst Theoret Phys, Hong Kong, Hong Kong, Peoples R China. [Hu, F. M.] Aalto Univ, Sch Sci & Technol, COMP Dept Appl Phys, FI-00076 Espoo, Finland. [Ma, Tianxing] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. [Lin, Hai-Qing] Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China. [Gubernatis, J. E.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Hu, FM (reprint author), Chinese Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China. RI Ma, Tianxing/D-1846-2012 FU CAEP; CUHK [402310]; US DOE-BES FX We thank C. D. Batista for a helpful conversation. This work was supported in part by CAEP and CUHK 402310. The work of JEG was supported in part by the US DOE-BES. NR 35 TC 39 Z9 39 U1 0 U2 17 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD AUG 3 PY 2011 VL 84 IS 7 AR 075414 DI 10.1103/PhysRevB.84.075414 PG 6 WC Physics, Condensed Matter SC Physics GA 801NB UT WOS:000293445500013 ER PT J AU Fok, R Kribs, GD AF Fok, R. Kribs, Graham D. TI Chiral quirkonium decays SO PHYSICAL REVIEW D LA English DT Article AB We calculate the two-body decay rates of quirkonium states formed from quirks that acquire mass solely through electroweak symmetry breaking. We consider SU(N)(ic) infracolor with two flavors of quirks transforming under the electroweak group (but not QCD) of the standard model. In one case, the quirks are in a chiral representation of the electroweak group, while in the other case, a vectorlike representation. The differences in the dominant decay channels between "chiral quirkonia" versus "vectorlike quirkonia" are striking. Several chiral quirkonia states can decay into the unique two-body resonance channels WH, ZH, t (t) over bar, t (b) over bar /b (t) over bar, and gamma H, which never dominate for vectorlike quirkonia. Additionally, the channels WW, WZ, ZZ, and W gamma, are shared among both chiral and vectorlike quirkonia. Resonances of dileptons or light quarks (dijets) can dominate for some vectorlike quirkonia states throughout their mass range, while these modes never dominate for chiral quirkonia unless the decays into pairs of gauge or Higgs bosons are kinematically forbidden. C1 [Fok, R.] Univ Oregon, Dept Phys, Eugene, OR 97403 USA. [Kribs, Graham D.] Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. RP Fok, R (reprint author), Univ Oregon, Dept Phys, Eugene, OR 97403 USA. NR 25 TC 7 Z9 7 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 3 PY 2011 VL 84 IS 3 AR 035001 DI 10.1103/PhysRevD.84.035001 PG 16 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 801NG UT WOS:000293446000002 ER PT J AU Viswanatha, R Pietryga, JM Klimov, VI Crooker, SA AF Viswanatha, Ranjani Pietryga, Jeffrey M. Klimov, Victor I. Crooker, Scott A. TI Spin-Polarized Mn2+ Emission from Mn-Doped Colloidal Nanocrystals SO PHYSICAL REVIEW LETTERS LA English DT Article ID DILUTED MAGNETIC SEMICONDUCTORS; CDSE QUANTUM DOTS; OPTICAL-PROPERTIES; FIELD; IONS; BAND; TEMPERATURE; EXCHANGE; MATRIX; SHELL AB We report magnetophotoluminescence studies of strongly quantum-confined 0D diluted magnetic semiconductors (DMS), realized in Mn2+-doped ZnSe/CdSe core-shell colloidal nanocrystals. In marked contrast to their 3D (bulk), 2D (quantum well), 1D (quantum wire), and 0D (self-assembled quantum dot) DMS counterparts, the ubiquitous yellow emission band from internal d-d (T-4(1) -> (6)A(1)) transitions of the Mn2+ ions in these nanocrystals is not suppressed in applied magnetic fields and does become circularly polarized. This polarization tracks the Mn2+ magnetization, and is accompanied by a sizable energy splitting between right-and left-circular emission components that scales with the exciton-Mn sp-d coupling strength (which, in turn, is tunable with nanocrystal size). These data highlight the influence of strong quantum confinement on both the excitation and the emission mechanisms of magnetic ions in DMS nanomaterials. C1 [Viswanatha, Ranjani; Pietryga, Jeffrey M.; Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Crooker, Scott A.] Natl High Magnet Field Lab, Los Alamos, NM 87545 USA. RP Viswanatha, R (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA. OI Klimov, Victor/0000-0003-1158-3179 FU DOE Basic Energy Sciences Chem-, Bio- and Geosciences Division FX This work was supported by the DOE Basic Energy Sciences Chem-, Bio- and Geosciences Division. We thank N. Samarth for the ZnMnSe epilayers, and J. Gaj, D. Yakovlev, and Al. Efros for valuable discussions. NR 36 TC 37 Z9 37 U1 6 U2 64 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 3 PY 2011 VL 107 IS 6 AR 067402 DI 10.1103/PhysRevLett.107.067402 PG 5 WC Physics, Multidisciplinary SC Physics GA 801NX UT WOS:000293447900021 PM 21902367 ER PT J AU Ravi, S D'Odorico, P Breshears, DD Field, JP Goudie, AS Huxman, TE Li, JR Okin, GS Swap, RJ Thomas, AD Van Pelt, S Whicker, JJ Zobeck, TM AF Ravi, Sujith D'Odorico, Paolo Breshears, David D. Field, Jason P. Goudie, Andrew S. Huxman, Travis E. Li, Junran Okin, Gregory S. Swap, Robert J. Thomas, Andrew D. Van Pelt, Scott Whicker, Jeffrey J. Zobeck, Ted M. TI AEOLIAN PROCESSES AND THE BIOSPHERE SO REVIEWS OF GEOPHYSICS LA English DT Review ID SOUTHERN NEW-MEXICO; BIOLOGICAL SOIL CRUSTS; WIND EROSION THRESHOLD; SAHARAN DUST TRANSPORT; TROPICAL NORTH-ATLANTIC; OPERATION IRAQI FREEDOM; LONG-RANGE TRANSPORT; LAST GLACIAL MAXIMUM; NATURAL DUNE SANDS; SEDIMENT TRANSPORT AB Aeolian processes affect the biosphere in a wide variety of contexts, including landform evolution, biogeochemical cycles, regional climate, human health, and desertification. Collectively, research on aeolian processes and the biosphere is developing rapidly in many diverse and specialized areas, but integration of these recent advances is needed to better address management issues and to set future research priorities. Here we review recent literature on aeolian processes and their interactions with the biosphere, focusing on (1) geography of dust emissions, (2) impacts, interactions, and feedbacks, (3) drivers of dust emissions, and (4) methodological approaches. Geographically, dust emissions are highly spatially variable but also provide connectivity at global scales between sources and effects, with "hot spots" being of particular concern. Recent research reveals that aeolian processes have impacts, interactions, and feedbacks at a variety of scales, including large-scale dust transport and global biogeochemical cycles, climate mediated interactions between atmospheric dust and ecosystems, impacts on human health, impacts on agriculture, and interactions between aeolian processes and dryland vegetation. Aeolian dust emissions are driven largely by, in addition to climate, a combination of soil properties, soil moisture, vegetation and roughness, biological and physical crusts, and disturbances. Aeolian research methods span laboratory and field techniques, modeling, and remote sensing. Together these integrated perspectives on aeolian processes and the biosphere provide insights into management options and aid in identifying research priorities, both of which are increasingly important given that global climate models predict an increase in aridity in many dryland systems of the world. C1 [Ravi, Sujith; Breshears, David D.; Field, Jason P.] Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ 85721 USA. [D'Odorico, Paolo; Swap, Robert J.] Univ Virginia, Dept Environm Sci, Charlottesville, VA 22904 USA. [Goudie, Andrew S.] Univ Oxford, St Cross Coll, Oxford OX1 3LZ, England. [Li, Junran] ARS, Jornada Expt Range, USDA, Las Cruces, NM 88003 USA. [Li, Junran; Okin, Gregory S.] Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA. [Thomas, Andrew D.] Manchester Metropolitan Univ, Sch Sci & Environm, Manchester M1 5GD, Lancs, England. [Van Pelt, Scott] ARS, Wind Eros Lab, USDA, Big Spring, TX 79720 USA. [Whicker, Jeffrey J.] Los Alamos Natl Lab, Environm Programs, Los Alamos, NM 87545 USA. [Zobeck, Ted M.] ARS, Wind Eros & Water Conservat Res Unit, USDA, Lubbock, TX 79415 USA. RP Ravi, S (reprint author), Univ Arizona, Sch Nat Resources & Environm, B2 Earthsci,Biosphere 2, Tucson, AZ 85721 USA. EM sr9k@virginia.edu RI Ravi, Sujith/C-3586-2008; Zobeck, Ted/A-6126-2012; D'Odorico, Paolo/A-5836-2008; OI Ravi, Sujith/0000-0002-0425-9373; Goudie, Andrew/0000-0002-5496-8207; Okin, Gregory/0000-0002-0484-3537 FU National Science Foundation [DEB-0717360, EAR-0746228, DEB-0743678, EAR-0838218, DEB-0620482]; Ecosystem Studies grant [0316320, DEB-0080412, DEB-0816162]; USDA Cooperative State Research, Education, and Extension Service [CSREES 2005-38420-15809]; Department of Energy [DE-AC52-06NA25396]; Leverhulme Trust; Philecology Foundation in Fort Worth, Texas FX We acknowledge current and previous sponsors of this research: National Science Foundation (grants DEB-0717360, EAR-0746228, DEB-0743678, EAR-0838218 (Paolo D'Odorico), and DEB-0620482 (to the University of New Mexico for Sevilleta Long Term Ecological Research); Ecosystem Studies grant 0316320 (Gregory S. Okin), DEB-0080412 (for the Jornada Long Term Ecological Research), and DEB-0816162 (David D. Breshears and Jason P. Field)), USDA Cooperative State Research, Education, and Extension Service (CSREES 2005-38420-15809 (Jason P. Field)), Department of Energy (DE-AC52-06NA25396 (Jeffrey J. Whicker)), Leverhulme Trust Research Fellowship (Andrew Thomas), and the Philecology Foundation in Fort Worth, Texas (for UA Biosphere2). NR 459 TC 62 Z9 63 U1 14 U2 105 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 8755-1209 EI 1944-9208 J9 REV GEOPHYS JI Rev. Geophys. PD AUG 3 PY 2011 VL 49 AR RG3001 DI 10.1029/2010RG000328 PG 45 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 804GC UT WOS:000293641300001 ER PT J AU Mascaraque, A Mentes, TO McCarty, KF Marco, JF Schmid, AK Locatelli, A de la Figuera, J AF Mascaraque, Arantzazu Mentes, T. Onur McCarty, Kevin F. Marco, Jose F. Schmid, Andreas K. Locatelli, Andrea de la Figuera, Juan TI Valence band circular dichroism in non-magnetic Ag/Ru(0001) at normal emission SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID DEPENDENT PHOTOEMISSION INTENSITIES; CONTINUOUS ABSORPTION; MAGNETIC DICHROISM; MOLECULES; RU(0001); REGION; FILMS; AU; AG AB For the non-magnetic system of Ag films on Ru(0001), we have measured the circular dichroism of photoelectrons emitted along the surface normal, the geometry typically used in photoemission electron microscopy. Photoemission spectra were acquired from micrometer-sized regions having uniformly thick Ag films on a single, atomically flat Ru terrace. For a single Ag layer, we find a circular dichroism that exceeds 6% at the d-derived band region around 4.5 eV binding energy. The dichroism decreases as the Ag film thickness increases to three atomic layers. We discuss the origin of the circular dichroism in terms of the symmetry lowering that can occur even in normal emission. C1 [Mascaraque, Arantzazu] Univ Complutense Madrid, Dept Fis Mat, E-28040 Madrid, Spain. [Mentes, T. Onur; Locatelli, Andrea] Sincrotrone Trieste SCpA, I-34149 Trieste, Italy. [McCarty, Kevin F.] Sandia Natl Labs, Livermore, CA 94550 USA. [Marco, Jose F.; de la Figuera, Juan] CSIC, Inst Quim Fis Rocasolano, E-28006 Madrid, Spain. [Schmid, Andreas K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Mascaraque, A (reprint author), Univ Complutense Madrid, Dept Fis Mat, E-28040 Madrid, Spain. RI de la Figuera, Juan/E-7046-2010; McCarty, Kevin/F-9368-2012; Mascaraque, Arantzazu/D-9504-2012; Marco, Jose/N-3176-2014; OI de la Figuera, Juan/0000-0002-7014-4777; McCarty, Kevin/0000-0002-8601-079X; Mascaraque, Arantzazu/0000-0002-2614-2862; Marco, Jose/0000-0002-5147-1449; Locatelli, Andrea/0000-0002-8072-7343 FU US Department of Energy [DE-AC04-94AL85000, DE-AC02-05CH11231]; Spanish Ministry of Science and Innovation [MAT2009-14578-C03-01, FIS2007-64982] FX This research was supported by the US Department of Energy under contracts Nos DE-AC04-94AL85000 and DE-AC02-05CH11231 and by the Spanish Ministry of Science and Innovation under project Nos MAT2009-14578-C03-01 and FIS2007-64982. NR 23 TC 2 Z9 2 U1 2 U2 17 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD AUG 3 PY 2011 VL 23 IS 30 AR 305006 DI 10.1088/0953-8984/23/30/305006 PG 5 WC Physics, Condensed Matter SC Physics GA 794WA UT WOS:000292930800007 PM 21734331 ER PT J AU Shen, M Henderson, MA AF Shen, Mingmin Henderson, Michael A. TI Site Competition during Coadsorption of Acetone with Methanol and Water on TiO2(110) SO LANGMUIR LA English DT Article ID HETEROGENEOUS PHOTOCATALYTIC OXIDATION; REDUCED TIO2(110); GASEOUS ACETONE; TITANIUM-DIOXIDE; THIN-FILMS; TIO2 110; OXYGEN-CHEMISORPTION; DEFECTIVE TIO2(110); O-2 DISSOCIATION; MOLECULAR-OXYGEN AB The competitive interaction between acetone and two solvent molecules (methanol and water) for surface sites on ruble TiO2(110) was studied using temperature-programmed desorption (TPD). On a vacuum-annealed TiO2(110) surface, which possessed similar to 5% oxygen vacancy sites, excess methanol displaced preadsorbed acetone molecules to weakly bound and physisorbed desorption states below 200 K. In contrast, acetone molecules were stabilized on an oxidized surface against displacement by methanol through formation of acetone diolate species. The behavior of acetone with methanol differs from the interactions between acetone and water which are less competitive. Examination of acetone + methanol and acetone + water multilayer combinations shows that acetone is more compatible in water-ice films than in methanol-ice films, presumably because water has greater potential as a hydrogen-bond donor than does methanol. Acetone molecules displaced from the TiO2(110) surface by water are more likely to be retained in the near-surface region, in turn having a greater opportunity to revisit the surface, than when methanol is used as a coadsorbate. C1 [Shen, Mingmin; Henderson, Michael A.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA. RP Henderson, MA (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, POB 999,MS K8-87, Richland, WA 99352 USA. EM ma.henderson@pnl.gov RI Shen, Mingmin/A-9293-2012 FU U.S. Department of Energy [DEAC05-76RL01830]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences FX The authors thank Bruce Kay and Scott Smith for helpful discussions. Work reported here was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, and performed in the William R. Wiley Environmental Molecular Science Laboratory (EMSL), a Department of Energy user facility funded by the Office of Biological and Environmental Research. Pacific Northwest National Laboratory is a multiprogram national laboratory operated for the U.S. Department of Energy by the Battelle Memorial Institute under Contract DEAC05-76RL01830. NR 72 TC 7 Z9 7 U1 3 U2 49 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0743-7463 J9 LANGMUIR JI Langmuir PD AUG 2 PY 2011 VL 27 IS 15 BP 9430 EP 9438 DI 10.1021/la2016726 PG 9 WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 796ET UT WOS:000293035300046 PM 21692462 ER PT J AU Xiao, XY Montano, GA Allen, A Achyuthan, KE Wheeler, DR Brozik, SM AF Xiao, Xiaoyin Montano, Gabriel A. Allen, Amy Achyuthan, Komandoor E. Wheeler, David R. Brozik, Susan M. TI Lipid Bilayer Templated Gold Nanoparticles Nanoring Formation Using Zirconium Ion Coordination Chemistry SO LANGMUIR LA English DT Article ID PHOSPHOLIPID-MEMBRANES; SURFACE; REORGANIZATION; BIOSENSORS; VESICLES; PHASE AB We used positively charged lipids to prepare lipid bilayer assemblies (LBAs) upon which we assembled negatively charged gold nanoparticles (AuNPs). Treatment of the assembly with zirconium chloride resulted in the formation of nanorings of the diameters inversely related to the zirconium ion concentration. The nanorings were attributed to the zirconium ion coordinated AuNPs formed during the lipid bilayer budding process promoted by the acid effect of zirconium chloride. Nanoring organization was also dependent on the fluidity of lipid bilayers, an indication of LBA-assisted nanomaterials organization. We suggest that such bioorganic-inorganic hybrid assemblies coupled to unique topological and morphological variations might be useful as stimuli-responsive sensors or storage compartments for proteins or drugs. C1 [Xiao, Xiaoyin; Allen, Amy; Achyuthan, Komandoor E.; Wheeler, David R.; Brozik, Susan M.] Sandia Natl Labs, Biosensors & Nanomat Dept, Albuquerque, NM 87185 USA. [Montano, Gabriel A.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Brozik, SM (reprint author), Sandia Natl Labs, Biosensors & Nanomat Dept, POB 5800, Albuquerque, NM 87185 USA. EM smbrozi@sandia.gov FU United States Department of Energy [DE-AC04-94AL85000] FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin company for the United States Department of Energy under Contract DE-AC04-94AL85000. Work was performed at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciencers user facility. We thank Drs. Bruce Bunker and Matt Goertz for helpful discussions. NR 41 TC 8 Z9 8 U1 3 U2 25 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0743-7463 J9 LANGMUIR JI Langmuir PD AUG 2 PY 2011 VL 27 IS 15 BP 9484 EP 9489 DI 10.1021/la2014754 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 796ET UT WOS:000293035300052 PM 21699157 ER PT J AU Skar, H Gutenkunst, RN Ramsay, KW Alaeus, A Albert, J Leitner, T AF Skar, Helena Gutenkunst, Ryan N. Ramsay, Karin Wilbe Alaeus, Annette Albert, Jan Leitner, Thomas TI Daily Sampling of an HIV-1 Patient with Slowly Progressing Disease Displays Persistence of Multiple env Subpopulations Consistent with Neutrality SO PLOS ONE LA English DT Article ID IMMUNODEFICIENCY-VIRUS TYPE-1; FREQUENCY-DEPENDENT SELECTION; EFFECTIVE POPULATION-SIZE; GENETIC DRIFT; IN-VIVO; MONONUCLEAR-CELLS; CHRONIC INFECTION; PERIPHERAL-BLOOD; ANTIBODY NEUTRALIZATION; REVERSE-TRANSCRIPTASE AB The molecular evolution of HIV-1 is characterized by frequent substitutions, indels and recombination events. In addition, a HIV-1 population may adapt through frequency changes of its variants. To reveal such population dynamics we analyzed HIV-1 subpopulation frequencies in an untreated patient with stable, low plasma HIV-1 RNA levels and close to normal CD4+ T-cell levels. The patient was intensively sampled during a 32-day period as well as approximately 1.5 years before and after this period (days -664, 1, 2, 3, 11, 18, 25, 32 and 522). 77 sequences of HIV-1 env (approximately 3100 nucleotides) were obtained from plasma by limiting dilution with 7-11 sequences per time point, except day -664. Phylogenetic analysis using maximum likelihood methods showed that the sequences clustered in six distinct subpopulations. We devised a method that took into account the relatively coarse sampling of the population. Data from days 1 through 32 were consistent with constant within-patient subpopulation frequencies. However, over longer time periods, i.e. between days 1...32 and 522, there were significant changes in subpopulation frequencies, which were consistent with evolutionarily neutral fluctuations. We found no clear signal of natural selection within the subpopulations over the study period, but positive selection was evident on the long branches that connected the subpopulations, which corresponds to >3 years as the subpopulations already were established when we started the study. Thus, selective forces may have been involved when the subpopulations were established. Genetic drift within subpopulations caused by de novo substitutions could be resolved after approximately one month. Overall, we conclude that subpopulation frequencies within this patient changed significantly over a time period of 1.5 years, but that this does not imply directional or balancing selection. We show that the short-term evolution we study here is likely representative for many patients of slow and normal disease progression. C1 [Skar, Helena; Ramsay, Karin Wilbe; Albert, Jan] Swedish Inst Infect Dis Control, Dept Virol, Solna, Sweden. [Skar, Helena; Ramsay, Karin Wilbe; Albert, Jan] Karolinska Inst, Dept Microbiol Tumor & Cell Biol, Stockholm, Sweden. [Skar, Helena; Leitner, Thomas] Los Alamos Natl Lab, Los Alamos, NM USA. [Gutenkunst, Ryan N.] Univ Arizona, Dept Mol & Cellular Biol, Tucson, AZ 85721 USA. [Alaeus, Annette] Karolinska Inst, Dept Med, Stockholm, Sweden. RP Skar, H (reprint author), Swedish Inst Infect Dis Control, Dept Virol, Solna, Sweden. EM tkl@lanl.gov FU National Institutes of Health (NIH) [1R01AI087520-01A1]; Swedish Research Council; Swedish International Development Cooperation Agency [SWE-2006-018] FX This work was supported by grants from the National Institutes of Health (NIH) [grant 1R01AI087520-01A1], the Swedish Research Council, and the Swedish International Development Cooperation Agency [grant no. SWE-2006-018]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 78 TC 2 Z9 2 U1 1 U2 7 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD AUG 2 PY 2011 VL 6 IS 8 AR e21747 DI 10.1371/journal.pone.0021747 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 802LF UT WOS:000293511900003 PM 21829600 ER PT J AU Greskowiak, J Hay, MB Prommer, H Liu, CX Post, VEA Ma, R Davis, JA Zheng, CM Zachara, JM AF Greskowiak, Janek Hay, Michael B. Prommer, Henning Liu, Chongxuan Post, Vincent E. A. Ma, Rui Davis, James A. Zheng, Chunmiao Zachara, John M. TI Simulating adsorption of U(VI) under transient groundwater flow and hydrochemistry: Physical versus chemical nonequilibrium model SO WATER RESOURCES RESEARCH LA English DT Article ID PORE-SCALE HETEROGENEITY; MASS-TRANSFER; REACTIVE TRANSPORT; SOLUTE TRANSPORT; VADOSE ZONE; URANIUM(VI); DESORPTION; SEDIMENTS; SORPTION; HANFORD AB Coupled intragrain diffusional mass transfer and nonlinear surface complexation processes play an important role in the transport behavior of U(VI) in contaminated aquifers. Two alternative model approaches for simulating these coupled processes were analyzed and compared: (1) the physical nonequilibrium approach that explicitly accounts for aqueous speciation and instantaneous surface complexation reactions in the intragrain regions and approximates the diffusive mass exchange between the immobile intragrain pore water and the advective pore water as multirate first-order mass transfer and (2) the chemical nonequilibrium approach that approximates the diffusion-limited intragrain surface complexation reactions by a set of multiple first-order surface complexation reaction kinetics, thereby eliminating the explicit treatment of aqueous speciation in the intragrain pore water. A model comparison has been carried out for column and field scale scenarios, representing the highly transient hydrological and geochemical conditions in the U(VI)-contaminated aquifer at the Hanford 300A site, Washington, USA. It was found that the response of U(VI) mass transfer behavior to hydrogeochemically induced changes in U(VI) adsorption strength was more pronounced in the physical than in the chemical nonequilibrium model. The magnitude of the differences in model behavior depended particularly on the degree of disequilibrium between the advective and immobile phase U(VI) concentrations. While a clear difference in U(VI) transport behavior between the two models was noticeable for the column-scale scenarios, only minor differences were found for the Hanford 300A field scale scenarios, where the model-generated disequilibrium conditions were less pronounced as a result of frequent groundwater flow reversals. C1 [Greskowiak, Janek; Prommer, Henning] CSIRO Land & Water, Wembley, WA, Australia. [Greskowiak, Janek] Carl von Ossietzky Univ Oldenburg, Working Grp Hydrogeol & Landscape Hydrol, Inst Biol & Environm Sci, D-26111 Oldenburg, Germany. [Hay, Michael B.; Davis, James A.] US Geol Survey, Menlo Pk, CA 94025 USA. [Prommer, Henning] Univ Western Australia, Sch Earth & Environm, Crawley, WA 6009, Australia. [Liu, Chongxuan; Zachara, John M.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Ma, Rui; Zheng, Chunmiao] Univ Alabama, Dept Geol Sci, Tuscaloosa, AL 35487 USA. [Post, Vincent E. A.] Flinders Univ S Australia, Adelaide, SA 5001, Australia. [Davis, James A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Greskowiak, J (reprint author), CSIRO Land & Water, Wembley, WA, Australia. EM janek.greskowiak@uni-oldenburg.de RI Prommer, Henning/A-4555-2008; Post, Vincent/E-6054-2011; Liu, Chongxuan/C-5580-2009; Zheng, Chunmiao/I-5257-2014; Davis, James/G-2788-2015; Greskowiak, Janek/F-4198-2012 OI Prommer, Henning/0000-0002-8669-8184; Post, Vincent/0000-0002-9463-3081; Zheng, Chunmiao/0000-0001-5839-1305; FU CSIRO; US Department of Energy, Office of Biological and Environmental Research (BER) FX We very much thank Aaron McDonough for preparing the parallel version of PHT3D, National Computational Infrastructure (NCI) Facility of Australia and iVEC, Western Australia, as well as Richard Silberstein (CSIRO) for providing high performance computing resources. This research was supported by a CSIRO OCE postdoctoral fellowship for JG; and by the US Department of Energy, Office of Biological and Environmental Research (BER) Subsurface Biogeochemistry Research Program (SBR) through the Hanford Integrated Field Research Challenge. NR 36 TC 10 Z9 10 U1 5 U2 40 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0043-1397 J9 WATER RESOUR RES JI Water Resour. Res. PD AUG 2 PY 2011 VL 47 AR W08501 DI 10.1029/2010WR010118 PG 14 WC Environmental Sciences; Limnology; Water Resources SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources GA 804JF UT WOS:000293649400001 ER PT J AU Mihaila, B Cooper, F Dawson, JF Chien, CC Timmermans, E AF Mihaila, Bogdan Cooper, Fred Dawson, John F. Chien, Chih-Chun Timmermans, Eddy TI Analytical limits for cold-atom Bose gases with tunable interactions SO PHYSICAL REVIEW A LA English DT Article ID GROUND-STATE ENERGY; TRANSITION-TEMPERATURE; EINSTEIN CONDENSATE; O(N) MODEL; CROSSOVER; SYSTEM; BCS AB We discuss the equilibrium properties of dilute Bose gases using a nonperturbative formalism based on auxiliary fields related to the normal and anomalous densities. We show analytically that for a dilute Bose gas of weakly interacting particles at zero temperature, the leading-order auxiliary field (LOAF) approximation leads to well-known analytical results. Close to the critical point the LOAF predictions are the same as those obtained using an effective field theory in the large-N approximation. We also report analytical approximations for the LOAF results in the unitarity limit, which compare favorably with our numerical results. LOAF predicts that the equation of state for the Bose gas in the unitarity limit is E/(pV) = 1, unlike the case of the Fermi gas when E/(pV) = 3/2. C1 [Mihaila, Bogdan; Cooper, Fred; Chien, Chih-Chun; Timmermans, Eddy] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Cooper, Fred] Santa Fe Inst, Santa Fe, NM 87501 USA. [Dawson, John F.] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA. RP Mihaila, B (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RI Mihaila, Bogdan/D-8795-2013 OI Mihaila, Bogdan/0000-0002-1489-8814 FU US Department of Energy FX Work performed in part under the auspices of the US Department of Energy. The authors would like to thank E. Mottola for useful discussions and the Santa Fe Institute for its hospitality during this work. NR 45 TC 7 Z9 7 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD AUG 2 PY 2011 VL 84 IS 2 AR 023603 DI 10.1103/PhysRevA.84.023603 PG 11 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 800OX UT WOS:000293373900009 ER PT J AU Toft-Petersen, R Jensen, J Jensen, TBS Andersen, NH Christensen, NB Niedermayer, C Kenzelmann, M Skoulatos, M Le, MD Lefmann, K Hansen, SR Li, JY Zarestky, JL Vaknin, D AF Toft-Petersen, Rasmus Jensen, Jens Jensen, Thomas Bagger Stibius Andersen, Niels Hessel Christensen, Niels Bech Niedermayer, Christof Kenzelmann, Michel Skoulatos, Markos Manh Duc Le Lefmann, Kim Hansen, Sonja Rosenlund Li, Jiying Zarestky, Jerel L. Vaknin, David TI High-field magnetic phase transitions and spin excitations in magnetoelectric LiNiPO4 SO PHYSICAL REVIEW B LA English DT Article ID SINGLET SYSTEM HOF3; FERROELECTRICITY; LICOPO4 AB The magnetically ordered phases and spin dynamics of magnetoelectric LiNiPO4 have been studied in fields up to 17.3 T along the c axis. Using neutron diffraction, we show that a previously proposed linearly polarized incommensurate (IC) structure exists only for temperatures just below the Neel temperature T-N. The ordered IC structure at the lowest temperatures is shown instead to be an elliptically polarized canted spiral for fields larger than 12 T. The transition between the two IC phases is of second order and takes place about 2 K below T-N. For mu H-0 > 16 T and temperatures below 10 K, the spiral structure is found to lock in to a period of five crystallographic unit cells along the b axis. Based on the neutron-diffraction data, combined with detailed magnetization measurements along all three crystallographic axes, we establish the magnetic phase diagrams for fields up to 17.3 T along c and for fields up to 16 T along a and b. The spin excitations in the high-field IC spiral phase have been studied in detail by inelastic neutron scattering. A mean-field analysis shows that the spin Hamiltonian derived previously from the low-temperature spin waves at zero field predicts the transition between the linear and elliptical polarization of the IC structure, and that a generalization of the spin-wave theory, assuming the random-phase approximation, accounts for the inelastic scattering data obtained in the commensurable uniform phase at fields below 12 T as well as those obtained in the high-field IC spiral phase. C1 [Toft-Petersen, Rasmus; Jensen, Thomas Bagger Stibius; Andersen, Niels Hessel; Christensen, Niels Bech] Tech Univ Denmark, Riso DTU, Mat Res Div, DK-4000 Roskilde, Denmark. [Lefmann, Kim] Niels Bohr Inst, Nanosci Ctr, DK-2100 Copenhagen, Denmark. [Christensen, Niels Bech; Niedermayer, Christof] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland. [Kenzelmann, Michel] Paul Scherrer Inst, Lab Dev & Methods, CH-5232 Villigen, Switzerland. [Skoulatos, Markos; Manh Duc Le] Helmholtz Zentrum Berlin Mat & Energy, D-14109 Berlin, Germany. [Li, Jiying; Zarestky, Jerel L.; Vaknin, David] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Li, Jiying; Zarestky, Jerel L.; Vaknin, David] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Toft-Petersen, R (reprint author), Tech Univ Denmark, Riso DTU, Mat Res Div, DK-4000 Roskilde, Denmark. RI Andersen, Niels/A-3872-2012; Le, Manh Duc/D-9901-2011; Niedermayer, Christof/K-4436-2014; Christensen, Niels/A-3947-2012; Jensen, Jens/C-7484-2015; Lefmann, Kim/M-9228-2014; Kenzelmann, Michel/A-8438-2008; Vaknin, David/B-3302-2009 OI Le, Manh Duc/0000-0003-3012-6053; Christensen, Niels/0000-0001-6443-2142; Jensen, Jens/0000-0002-7954-8073; Lefmann, Kim/0000-0003-4282-756X; Kenzelmann, Michel/0000-0001-7913-4826; Vaknin, David/0000-0002-0899-9248 FU Danish Agency for Science, Technology, and Innovation under DANSCATT; Swiss NSF [PP002-102831]; US Department of Energy [DE-AC02-07CH11358] FX Work was supported by the Danish Agency for Science, Technology, and Innovation under DANSCATT and by the Swiss NSF via Contract No. PP002-102831. The manuscript has been authored, in whole or in part, under Contract No. DE-AC02-07CH11358 with the US Department of Energy. Neutron experiments were performed at the SINQ neutron spallation source at the Paul Scherrer Institute, Switzerland, and at the Berlin Neutron Scattering Center (BENSC) at the Helmholtz Zentrum Berlin, Germany. NR 25 TC 9 Z9 9 U1 2 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD AUG 2 PY 2011 VL 84 IS 5 AR 054408 DI 10.1103/PhysRevB.84.054408 PG 10 WC Physics, Condensed Matter SC Physics GA 800OY UT WOS:000293374000009 ER PT J AU Nisoli, C Bishop, AR AF Nisoli, Cristiano Bishop, A. R. TI Thermomechanics of DNA: Theory of Thermal Stability under Load SO PHYSICAL REVIEW LETTERS LA English DT Article ID STRUCTURAL TRANSITIONS; STATISTICAL-MECHANICS; MOLECULE; MODEL; DENATURATION AB A theory for thermomechanical behavior of homogeneous DNA at thermal equilibrium predicts critical temperatures for denaturation under torque and stretch, phase diagrams for stable B-DNA, supercoiling, optimally stable torque, and the overstretching transition as force-induced DNA melting. Agreement with available single molecule manipulation experiments is excellent. C1 [Nisoli, Cristiano] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Nisoli, C (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. OI Nisoli, Cristiano/0000-0003-0053-1023 FU National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DEAC52-06NA25396] FX We are grateful to B. Alexandrov and K. Rasmussen (LANL), S. Ares and J. Bois (MPIPKS Dresden), C. Matek and A. Louis (Oxford) for stimulating conversations, and to Amity Law (Harvard), C. Reichhardt (LANL), and P. Lammert (PSU) for helping with the manuscript. This work was carried out under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory under Contract No. DEAC52-06NA25396. NR 24 TC 7 Z9 8 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 2 PY 2011 VL 107 IS 6 AR 068102 DI 10.1103/PhysRevLett.107.068102 PG 4 WC Physics, Multidisciplinary SC Physics GA 800QA UT WOS:000293377000020 PM 21902371 ER PT J AU Orenstein, J AF Orenstein, J. TI Optical Nonreciprocity in Magnetic Structures Related to High-T-c Superconductors SO PHYSICAL REVIEW LETTERS LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTORS; PSEUDOGAP; REFLECTION; SYMMETRY; STATES; CR2O3; TIME; ANTIFERROMAGNETS; TRANSMISSION; DOMAINS AB Rotation of the plane of polarization of reflected light (Kerr effect) is a direct manifestation of broken time-reversal symmetry and is generally associated with the appearance of a ferromagnetic moment. Here I identify magnetic structures that may arise within the unit cell of cuprate superconductors that generate polarization rotation despite the absence of a net moment. For these magnetic symmetries the Kerr effect is mediated by magnetoelectric coupling, which can arise when antiferromagnetic order breaks inversion symmetry. The structures identified are candidates for a time-reversal breaking phase in the pseudogap regime of the cuprates. C1 [Orenstein, J.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Orenstein, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Orenstein, J (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. RI Orenstein, Joseph/I-3451-2015 FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05CH11231] FX I would like to thank P. Bourges, J. C. Davis, J. Hinton, A. Kapitulnik, J. Koralek, S. A. Kivelson, A. Shekhter, and C. M. Varma for helpful discussions. This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 32 TC 23 Z9 23 U1 2 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 2 PY 2011 VL 107 IS 6 AR 067002 DI 10.1103/PhysRevLett.107.067002 PG 4 WC Physics, Multidisciplinary SC Physics GA 800QA UT WOS:000293377000017 PM 21902360 ER PT J AU Marchetti, F Rowan-Carroll, A Williams, A Polyzos, A Berndt-Weis, ML Yauk, CL AF Marchetti, Francesco Rowan-Carroll, Andrea Williams, Andrew Polyzos, Aris Berndt-Weis, M. Lynn Yauk, Carole L. TI Sidestream tobacco smoke is a male germ cell mutagen SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article ID MINISATELLITE MUTATION-RATE; CHERNOBYL CLEANUP WORKERS; MICROSATELLITE MUTATIONS; GENOME STABILITY; DOSE-RESPONSE; DNA-DAMAGE; MOUSE; MICE; RADIATION; ERYTHROCYTES AB Active cigarette smoking increases oxidative damage, DNA adducts, DNA strand breaks, chromosomal aberrations, and heritable mutations in sperm. However, little is known regarding the effects of second-hand smoke on the male germ line. We show here that short-term exposure to mainstream tobacco smoke or sidestream tobacco smoke (STS), the main component of second-hand smoke, induces mutations at an expanded simple tandem repeat locus (Ms6-hm) in mouse sperm. We further show that the response to STS is not linear and that, for both mainstream tobacco smoke and STS, doses that induced significant increases in expanded simple tandem repeat mutations in sperm did not increase the frequencies of micronucleated reticulocytes and erythrocytes in the bone marrow and blood of exposed mice. These data show that passive exposure to cigarette smoke can cause tandem repeat mutations in sperm under conditions that may not induce genetic damage in somatic cells. Although the relationship between noncoding tandem repeat instability and mutations in functional regions of the genome is unclear, our data suggest that paternal exposure to second-hand smoke may have reproductive consequences that go beyond the passive smoker. C1 [Marchetti, Francesco; Polyzos, Aris] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Rowan-Carroll, Andrea; Williams, Andrew; Berndt-Weis, M. Lynn; Yauk, Carole L.] Hlth Canada, Environm Hlth Sci & Res Bur, Ottawa, ON K1A 0K9, Canada. RP Marchetti, F (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. EM francesco.marchetti@hc-sc.gc.ca; carole.yauk@hc-sc.gc.ca OI Marchetti, Francesco/0000-0002-9435-4867; Yauk, Carole/0000-0003-4919-876X FU United States Department of Energy by the Lawrence Berkeley National Laboratory [DE-AC02-05CH1123]; California Tobacco Related Disease Research Program [13RT-0140A]; Canadian Regulatory Systems for Biotechnology FX We thank Drs. David De Marini, Jack Bishop, George Douglas, Andrew J. Wyrobek, and Francesca Pacchierotti for helpful comments on the manuscript. The present work was performed in part under the auspices of the United States Department of Energy by the Lawrence Berkeley National Laboratory under Contract DE-AC02-05CH1123. This work was supported by California Tobacco Related Disease Research Program Grant 13RT-0140A (to F.M.) and by the Canadian Regulatory Systems for Biotechnology (C.L.Y.). NR 43 TC 29 Z9 29 U1 0 U2 6 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD AUG 2 PY 2011 VL 108 IS 31 BP 12811 EP 12814 DI 10.1073/pnas.1106896108 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 800SC UT WOS:000293385700056 PM 21768363 ER PT J AU Goble, AM Zhang, ZN Sauder, JM Burey, SK Swaminathan, S Raushel, FM AF Goble, Alissa M. Zhang, Zhening Sauder, J. Michael Burey, Stephen K. Swaminathan, Subramanyam Raushel, Frank M. TI Pa0148 from Pseudomonas aeruginosa Catalyzes the Deamination of Adenine SO BIOCHEMISTRY LA English DT Article ID MOUSE ADENOSINE-DEAMINASE; SITE-DIRECTED MUTAGENESIS; CONFORMATIONAL-CHANGE; ESCHERICHIA-COLI; MECHANISM; INHIBITORS; RECOGNITION; ACTIVATION; RIBOSWITCH; COMPLEXES AB Four proteins from NCBI cog1816, previously annotated as adenosine deaminases, have been subjected to structural and functional characterization. Pa0148 (Pseudomonas aeruginosa PA01), AAur1117 (Arthrobacter aurescens TC1), Sgx9403e, and Sgx9403g have been purified and their substrate profiles determined. Adenosine is not a substrate for any of these enzymes. All of these proteins will dearainate adenine to produce hypoxanthine with k(cat)/K-m values that exceed 10(5)M(-1) s(-1). These enzymes will also accept 6-chloropurine, 6-methoxypurine, N-6-methyladenine, and 2,6-diaminopurine as alternate substrates. X-ray structures of Pa0148 and AAur1117 have been determined and reveal nearly identical distorted (beta/alpha)(8) barrels with a single zinc ion that is characteristic of members of the amidohydrolase superfamily. Structures of Pa0148 with adenine, 6-chloropurine, and hypoxanthine were also determined, thereby permitting identification of the residues responsible for coordinating the substrate and product. C1 [Goble, Alissa M.; Raushel, Frank M.] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA. [Zhang, Zhening; Swaminathan, Subramanyam] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Sauder, J. Michael; Burey, Stephen K.] Lilly Biotechnol Ctr, San Diego, CA 92121 USA. RP Raushel, FM (reprint author), Texas A&M Univ, Dept Chem, POB 30012, College Stn, TX 77843 USA. EM swami@bnl.gov; raushel@tamu.edu RI Raushel, Frank/B-7125-2015 OI Raushel, Frank/0000-0002-5918-3089 FU National Institutes of Health [GM 71790, GM 74945]; Robert A. Welch Foundation [A-840] FX This work was supported in part by the National Institutes of Health (GM 71790 and GM 74945) and the Robert A. Welch Foundation (A-840). NR 43 TC 5 Z9 5 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0006-2960 J9 BIOCHEMISTRY-US JI Biochemistry PD AUG 2 PY 2011 VL 50 IS 30 BP 6589 EP 6597 DI 10.1021/bi200868u PG 9 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 796EV UT WOS:000293035500008 PM 21710971 ER PT J AU Zhu, SJ Wang, JG Gu, L Hamilton, JH Ramayya, AV Luo, YX Rasmussen, JO Hwang, JK Ding, HB Li, K Liu, SH Yeoh, EY Xu, Q Xiao, ZG AF Zhu ShengJiang Wang JianGuo Gu Long Hamilton, J. H. Ramayya, A., V Luo YiXiao Rasmussen, J. O. Hwang, J. K. Ding HuaiBo Li Ke Liu ShaoHua Yeoh, E. Y. Xu Qiang Xiao ZhiGang TI New multi-phonon gamma vibrational bands in A similar to 110 neutron-rich nuclei SO SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY LA English DT Article DE high spin states; neutron-rich nucleus; gamma-vibrational bands ID ROTATIONAL BANDS; COLLECTIVE BANDS; DEFORMED-NUCLEI; FISSION; IDENTIFICATION; MO-106; STATE AB The high spin states of neutron-rich Nb-103, Tc-107 and Tc-109 nuclei in A similar to 110 region have been investigated by measuring prompt gamma-gamma-gamma coincident measurements populated with the spontaneous fission of Cf-252 with the Gammasphere detector array. In Nb-103, one-phonon K = 9/2 and two-phonon K = 13/2 gamma-vibrational bands have been identified. In Tc-107 and Tc-109, one-phonon K = 11/2 and two-phonon K = 15/2 gamma-vibrational bands, in which the zero-phonon bands are based on K=7/2 excited states, have also been identified. The two-phonon bands are first observed in odd-Z nuclei. The characteristics for these band structures have been discussed. C1 [Zhu ShengJiang; Wang JianGuo; Gu Long; Ding HuaiBo; Yeoh, E. Y.; Xu Qiang; Xiao ZhiGang] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Hamilton, J. H.; Ramayya, A., V; Luo YiXiao; Hwang, J. K.; Li Ke; Liu ShaoHua] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA. [Luo YiXiao; Rasmussen, J. O.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Zhu, SJ (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. EM zhushj@mail.tsinghua.edu.cn OI Hwang, Jae-Kwang/0000-0002-4100-3473 FU Major State Basic Research Development Program [2007CB815005]; National Natural Science Foundation of China [10775078]; U. S. Department of Energy [DE-FG05-88ER40407, DEAC03-76SF00098] FX The work at Tsinghua University was supported by the Major State Basic Research Development Program (Grant No. 2007CB815005), and the National Natural Science Foundation of China (Grant No. 10775078). The work at Vanderbilt University, Lawrence Berkeley National Laboratory, was supported by U. S. Department of Energy (Grant Nos. DE-FG05-88ER40407 and DEAC03-76SF00098). NR 27 TC 6 Z9 6 U1 1 U2 5 PU SCIENCE PRESS PI BEIJING PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA SN 1674-7348 J9 SCI CHINA PHYS MECH JI Sci. China-Phys. Mech. Astron. PD AUG PY 2011 VL 54 SU 1 BP S44 EP S48 DI 10.1007/s11433-011-4417-7 PG 5 WC Physics, Multidisciplinary SC Physics GA 922EJ UT WOS:000302529300008 ER PT J AU Akl, TJ Long, RQ McShane, MJ Ericson, MN Wilson, MA Cote, GL AF Akl, Tony J. Long, Ruiqi McShane, Michael J. Ericson, M. Nance Wilson, Mark A. Cote, Gerard L. TI Optimizing probe design for an implantable perfusion and oxygenation sensor SO BIOMEDICAL OPTICS EXPRESS LA English DT Article ID TISSUE-SIMULATING PHANTOMS; LIVER-TRANSPLANTATION; MULTILAYERED TISSUES; BLOOD-FLOW; INDIA INK; REFLECTANCE; VALIDATION; MODEL AB In an effort to develop an implantable optical perfusion and oxygenation sensor, based on multiwavelength reflectance pulse oximetry, we investigate the effect of source-detector separation and other source-detector characteristics to optimize the sensor's signal to background ratio using Monte Carlo (MC) based simulations and in vitro phantom studies. Separations in the range 0.45 to 1.25 mm were found to be optimal in the case of a point source. The numerical aperture (NA) of the source had no effect on the collected signal while the widening of the source spatial profile caused a shift in the optimal source-detector separation. Specifically, for a 4.5 mm flat beam and a 2.4 mm x 2.5 mm photodetector, the optimal performance was found to be when the source and detector are adjacent to each other. These modeling results were confirmed by data collected from in vitro experiments on a liver phantom perfused with dye solutions mimicking the absorption properties of hemoglobin for different oxygenation states. (C) 2011 Optical Society of America C1 [Akl, Tony J.; Long, Ruiqi; McShane, Michael J.; Cote, Gerard L.] Texas A&M Univ, Dept Biomed Engn, Zachry Engn Ctr 337, College Stn, TX 77843 USA. [Ericson, M. Nance] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Wilson, Mark A.] Univ Pittsburgh, Dept Surg, Pittsburgh, PA 15213 USA. [Wilson, Mark A.] Vet Affairs Healthcare Syst, Pittsburgh, PA 15240 USA. RP Akl, TJ (reprint author), Texas A&M Univ, Dept Biomed Engn, Zachry Engn Ctr 337, College Stn, TX 77843 USA. EM takl@tamu.edu RI Ericson, Milton/H-9880-2016; OI Ericson, Milton/0000-0002-6628-4865; McShane, Mike/0000-0001-6838-3982 FU NIH [5R01-GM077150]; HHS/HRSA FX This research was funded by a bioengineering research partnership (BRP) grant from NIH, (# 5R01-GM077150). The data and analyses reported in the 2009 Annual Report of the U.S. Organ Procurement and Transplantation Network and the Scientific Registry of Transplant Recipients have been supplied by UNOS and Arbor Research under contract with HHS/HRSA. The authors alone are responsible for reporting and interpreting these data; the views expressed herein are those of the authors and not necessarily those of the U.S. Government. The authors would like to thank Travis King, M. S. student in the Optical Biosensing Laboratory, for his helpful discussions. NR 33 TC 9 Z9 9 U1 0 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 2156-7085 J9 BIOMED OPT EXPRESS JI Biomed. Opt. Express PD AUG 1 PY 2011 VL 2 IS 8 BP 2096 EP 2109 PG 14 WC Biochemical Research Methods; Optics; Radiology, Nuclear Medicine & Medical Imaging SC Biochemistry & Molecular Biology; Optics; Radiology, Nuclear Medicine & Medical Imaging GA 886VN UT WOS:000299882100002 PM 21833350 ER PT J AU Nonoyama, A Garcia-Lopez, A Garcia-Rubio, LH Leparc, GF Potter, RL AF Nonoyama, Akihisa Garcia-Lopez, Alicia Garcia-Rubio, Luis H. Leparc, German F. Potter, Robert L. TI Hypochromicity in red blood cells: an experimental and theoretical investigation SO BIOMEDICAL OPTICS EXPRESS LA English DT Article ID LIGHT-SCATTERING; SCREENING HYPOCHROMISM; POLYNUCLEOTIDES; ERYTHROCYTES; SPECTROSCOPY; ABSORPTION; TURBIDIMETRY; SUSPENSIONS; ULTRAVIOLET; HAEMOLYSIS AB Multiwavelength UV-visible transmission spectrophotometry is a useful tool for the examination of micron-size particle suspensions in the context of particle size and chemical composition. This paper reports the reliability of this method to characterize the spectra of purified red blood cells both in their physiological state and with modified hemoglobin content. Previous studies have suggested the contribution of hypochromism on the particle spectra caused by the close electronic interaction of the encapsulated chromophores. Our research shows, however, that this perceived hypochromism can be accounted for by considering two important issues: the acceptance angle of the instrument and the combined scattering and absorption effect of light on the particles. In order to establish these ideas, spectral analysis was performed on purified and modified red cells where the latter was accomplished with a modified hypotonic shock protocol that altered the hemoglobin concentration within the cells. Moreover, the Mie theory was used to successfully simulate the spectral features and trends of the red cells. With this combination of experimental and theoretical exploration, definition of hypochromism has been extended to two subcategories. (C) 2011 Optical Society of America C1 [Nonoyama, Akihisa; Potter, Robert L.] Univ S Florida, Dept Chem, Tampa, FL 33620 USA. [Garcia-Lopez, Alicia] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Garcia-Rubio, Luis H.] Claro Sci, St Petersburg, FL 33716 USA. [Garcia-Rubio, Luis H.; Leparc, German F.] Florida Blood Serv, St Petersburg, FL 33716 USA. RP Nonoyama, A (reprint author), Univ S Florida, Dept Chem, 4202 E Fowler Ave, Tampa, FL 33620 USA. EM garlop01@gmail.com FU Engineering Research Center (ERC) for Particle Science and Technology at the University of Florida (NSF) [EEC-94-02989]; Los Alamos National Laboratory [W-7406-ENG-36] FX The authors would like to acknowledge the Florida Blood Services, St. Petersburg, FL for their resources and expertise in hematology, the University of South Florida Department of Chemistry (Tampa, FL), the Engineering Research Center (ERC) for Particle Science and Technology at the University of Florida (NSF grant # EEC-94-02989), and Los Alamos National Laboratory (contract # W-7406-ENG-36). NR 45 TC 8 Z9 8 U1 0 U2 8 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 2156-7085 J9 BIOMED OPT EXPRESS JI Biomed. Opt. Express PD AUG 1 PY 2011 VL 2 IS 8 BP 2126 EP 2143 PG 18 WC Biochemical Research Methods; Optics; Radiology, Nuclear Medicine & Medical Imaging SC Biochemistry & Molecular Biology; Optics; Radiology, Nuclear Medicine & Medical Imaging GA 886VN UT WOS:000299882100005 PM 21833353 ER PT J AU Parish, CM Miller, MK AF Parish, C. M. Miller, M. K. TI "Multivariate statistical analysis of atom probe tomography data" [Ultramicroscopy (vol 110, pg 1362, yr 2010)] SO ULTRAMICROSCOPY LA English DT Correction AB A small error in the mathematics described in the previous paper (C.M. Parish and M.K. Miller: Multivariate statistical analysis of atom probe tomography data, Ultramicroscopy 110(11) (2010) 1362-1373) has been found. Although the results and conclusions are completely unchanged, it is important to correct the error. (C) 2011 Elsevier B.V. All rights reserved. C1 [Parish, C. M.; Miller, M. K.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Parish, CM (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM parishcm@ornl.gov RI Parish, Chad/J-8381-2013; OI Parish, Chad/0000-0003-1209-7439 NR 4 TC 0 Z9 0 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-3991 J9 ULTRAMICROSCOPY JI Ultramicroscopy PD AUG-SEP PY 2011 VL 111 IS 9-10 BP 1522 EP 1522 DI 10.1016/j.ultramic.2011.02.003 PG 1 WC Microscopy SC Microscopy GA 894XQ UT WOS:000300461200011 ER PT J AU Jo, JH Lee, MW Woo, SH Lee, DS AF Jo, Ji Hye Lee, Min Woo Woo, Seung Han Lee, Dae Sung TI Prediction of Biological Hydrogen Production in a Packed-Bed Bioreactor Using a Genetically Evolved Artificial Neural Network SO JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS LA English DT Article; Proceedings Paper CT 2nd International Conference on New and Renewable Energies (ICNRE) CY APR 08, 2011 CL Kyungpook Natl Univ, Daegu, SOUTH KOREA HO Kyungpook Natl Univ DE Clostridium tyrobutyricum; Hydrogen Production; Neural Network; Genetic Algorithm; Process Simulation ID BIOHYDROGEN PRODUCTION; MICROBIAL COMMUNITY; FOOD WASTE; OPTIMIZATION; MICROFLORA; ALGORITHMS; REACTOR AB In this study, a fermentative hydrogen-producing bacterium, Clostridium tyrobutyricum JM1, was isolated from a food waste treatment process. The isolate was immobilized in a packed-bed bioreactor using polyurethane foam as a support medium. The performance of the reactor was predicted by a feed-forward backpropagation neural network (FBNN) whose structure and weights were genetically evolved using a genetic algorithm (GA). The GA was used to optimize the structure of the FBNN. The organic loading rate, the pH, the microorganisms' concentrations, the hydraulic retention time (HRT), and the total volumetric gas flow rate were the inputs of the ANN model. The proposed model was evaluated in terms of its estimation of the key quality parameters of the reactor, such as the hydrogen production rate and the metabolites in the effluent. The simulation results showed that the FBNN model was able to effectively describe the daily variations of the packed-bed bioreactor performance at various HRTs. C1 [Woo, Seung Han] Keimyung Univ, Dept Chem Engn, Taegu 704701, South Korea. [Jo, Ji Hye] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Jo, Ji Hye] Korea Environm Inst, Integrated Environm Res Grp, Seoul 122706, South Korea. [Lee, Min Woo] Hanbat Natl Univ, Dept Chem Engn, Taejon 305719, South Korea. [Lee, Dae Sung] Kyungpook Natl Univ, Dept Environm Engn, Taegu 702701, South Korea. RP Woo, SH (reprint author), Keimyung Univ, Dept Chem Engn, 2800 Dalgubeoldaero, Taegu 704701, South Korea. NR 20 TC 0 Z9 0 U1 0 U2 4 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1555-130X J9 J NANOELECTRON OPTOE JI J. Nanoelectron. Optoelectron. PD AUG PY 2011 VL 6 IS 3 SI SI BP 253 EP 257 DI 10.1166/jno.2011.1163 PG 5 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied SC Engineering; Science & Technology - Other Topics; Physics GA 882SA UT WOS:000299583000009 ER PT J AU Ahn, JW Canik, JM Maingi, R Gray, TK Lore, JD McLean, AG Park, JK Roquemore, AL Soukhanovskii, VA AF Ahn, J. -W. Canik, J. M. Maingi, R. Gray, T. K. Lore, J. D. McLean, A. G. Park, J. -K. Roquemore, A. L. Soukhanovskii, V. A. TI Characteristics of divertor heat and particle deposition with intrinsic and applied 3-D fields in NSTX H-mode plasmas SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom AB Divertor heat and particle flux profiles are modified by externally imposed non-axisymmetric magnetic perturbations in the National Spherical Torus Experiment. The applied 3-D field causes strike point splitting that is represented as local peaks and valleys in the divertor profiles. The plasma response in an ideal perturbed equilibrium approach was included in the field line tracing by taking account of the B-field generated by the plasma current up to a certain fraction of normalized flux inside the separatrix and being superposed to the vacuum field. The inclusion of this type of plasma response does not significantly affect the location and spacing of the split strike points at the divertor surface. A modest level of divertor profile modification is found to occur even without the application of 3-D fields in certain high triangularity (delta = 0.65-0.8) discharges, with the location of local peaks and valleys same before and after the application. The intrinsic error field from the non-circularity of PF5 coil is known to have primarily n = 3 component in NSTX and was modeled to be included in the vacuum field line tracing. The produced puncture plot of the field line along with the connection length profile shows that the radial location of local peaks agrees well with the measurement, identifying intrinsic error field as a possible source of intrinsic strike point splitting. The radial location of local peaks in the profiles during the triggered ELM by the applied n = 3 field is the same before and after the 3-D field application. This shows that the heat flux from the triggered ELMs appears to follow the imposed n = 3 field structure. (C) 2011 Elsevier B.V. All rights reserved. C1 [Ahn, J. -W.; Park, J. -K.; Roquemore, A. L.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Ahn, J. -W.; Canik, J. M.; Maingi, R.; Gray, T. K.; Lore, J. D.; McLean, A. G.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Soukhanovskii, V. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Ahn, JW (reprint author), Princeton Plasma Phys Lab, MS-15, Princeton, NJ 08543 USA. EM jahn@pppl.gov OI Canik, John/0000-0001-6934-6681; Lore, Jeremy/0000-0002-9192-465X NR 25 TC 3 Z9 3 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S918 EP S922 DI 10.1016/j.jnucmat.2011.01.115 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100209 ER PT J AU Burgos, JMM Schmitz, O Unterberg, EA Loch, SD Ballance, CP AF Burgos, J. M. Munoz Schmitz, O. Unterberg, E. A. Loch, S. D. Ballance, C. P. TI Implementation of a new atomic basis for the He I equilibrium line ratio technique for electron temperature and density diagnostic in the SOL for H-mode plasmas in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID RECOMBINATION; SCATTERING; HYDROGEN; IONS AB Evaluating the ratio of selected helium lines allows for measurement of electron densities and temperatures. This technique is applied for L-mode plasmas at TEXTOR (O. Schmitz et al., Plasma Phys. Control. Fusion 50 (2008) 115004). We report our first efforts to extend it to H-mode plasma diagnostics in DIII-D. This technique depends on the accuracy of the atomic data used in the collisional radiative model (CRM). We present predictions for the electron temperatures and densities by using recently calculated R-Matrix With Pseudostates (RMPS) and Convergent Close-Coupling (CCC) electron-impact excitation and ionization data. We include contributions from higher Rydberg states by means of the projection matrix. These effects become significant for high electron density conditions, which are typical in H-mode. We apply a non-equilibrium model for the time propagation of the ionization balance to predict line emission profiles from experimental H-mode data from DIII-D. (C) 2010 Elsevier B.V. All rights reserved. C1 [Burgos, J. M. Munoz] Oak Ridge Inst Sci Educ, Oak Ridge, TN 37830 USA. [Schmitz, O.] Assoc EURATOM FZJ, Forschungszentrum Julich, Inst Energieforsch Plasmaphys, Trilateral Euregio Clust, Germany. [Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Loch, S. D.; Ballance, C. P.] Auburn Univ, Auburn, AL 36849 USA. RP Burgos, JMM (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA. EM munozj@fusion.gat.com RI Unterberg, Ezekial/F-5240-2016 OI Unterberg, Ezekial/0000-0003-1353-8865 NR 12 TC 2 Z9 2 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1155 EP S1158 DI 10.1016/j.jnucmat.2010.11.052 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100262 ER PT J AU Canik, JM Maingi, R Soukhanovskii, VA Bell, RE Kugel, HW LeBlanc, BP Osborne, TH AF Canik, J. M. Maingi, R. Soukhanovskii, V. A. Bell, R. E. Kugel, H. W. LeBlanc, B. P. Osborne, T. H. TI Measurements and 2-D modeling of recycling and edge transport in discharges with lithium-coated PFCs in NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID SPHERICAL TORUS EXPERIMENT; PLASMA; DIVERTOR; B2-EIRENE; PEDESTAL; REGIMES; PHYSICS; POWER AB The application of lithium coatings on plasma facing components has been shown to profoundly affect plasma performance in the National Spherical Torus Experiment, improving energy confinement and eliminating edge-localized modes. The edge particle balance during these ELM-free discharges has been studied through 2-D plasma-neutrals modeling, constrained by measurements of the upstream plasma density and temperature profiles and the divertor heat flux and D-alpha emission. The calculations indicate that the reduction in divertor D-alpha emission with lithium coatings applied is consistent with a drop in recycling coefficient from R similar to 0.98 to R similar to 0.9. The change in recycling is not sufficient to account for the change in edge density profiles: interpretive modeling indicates similar transport coefficients within the edge transport barrier (D/chi(e) similar to 0.2/1.0 m(2)/s), but a widening of the barrier with lithium. (C) 2010 Elsevier B.V. All rights reserved. C1 [Canik, J. M.; Maingi, R.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Soukhanovskii, V. A.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Bell, R. E.; Kugel, H. W.; LeBlanc, B. P.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Osborne, T. H.] Gen Atom Co, San Diego, CA USA. RP Canik, JM (reprint author), 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM canikjm@ornl.gov OI Canik, John/0000-0001-6934-6681 NR 25 TC 19 Z9 19 U1 3 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S409 EP S412 DI 10.1016/j.jnucmat.2010.11.084 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100091 ER PT J AU Causey, RA Cowgill, DF Doerner, R Kolasinski, R Mills, B Morse, D Smugeresky, J Wampler, WR Williams, R Huber, D AF Causey, R. A. Cowgill, D. F. Doerner, R. Kolasinski, R. Mills, B. Morse, D. Smugeresky, J. Wampler, W. R. Williams, R. Huber, D. TI Deuterium retention in tungsten at elevated temperatures SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID HYDROGEN ISOTOPE RETENTION; PLASMA-FACING MATERIALS; TDS AB The tungsten ITER divertor will be operated at temperatures above 1000 K. Most of the laboratory experiments on hydrogen isotope retention in tungsten have been performed at lower temperatures where the hydrogen is retained as both atoms and molecules. At higher temperatures, atomic trapping plays a smaller role. The purpose of this paper is to see if hydrogen is trapped at internal voids at elevated temperatures, and to see if gas-filled cavities can be formed at high fiuences. Additionally, this paper examines the effect of helium bubbles and radiation damage on trapping. (C) 2011 Published by Elsevier B.V. C1 [Causey, R. A.; Cowgill, D. F.; Kolasinski, R.; Mills, B.; Morse, D.; Smugeresky, J.] Sandia Natl Labs, Livermore, CA USA. [Doerner, R.] Univ Calif San Diego, San Diego, CA 92103 USA. [Wampler, W. R.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Williams, R.; Huber, D.] Ohio State Univ, Columbus, OH 43210 USA. RP Causey, RA (reprint author), Sandia Natl Labs, Livermore, CA USA. EM rion999@pacbell.net NR 21 TC 7 Z9 7 U1 3 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S672 EP S675 DI 10.1016/j.jnucmat.2010.10.057 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100152 ER PT J AU Elder, JD Wampler, WR McLean, AG Stangeby, PC Allen, SL Bray, BD Brooks, NH Leonard, AW Unterberg, EA Watkins, JG AF Elder, J. D. Wampler, W. R. McLean, A. G. Stangeby, P. C. Allen, S. L. Bray, B. D. Brooks, N. H. Leonard, A. W. Unterberg, E. A. Watkins, J. G. TI OEDGE modeling of the DIII-D double null (CH4)-C-13 puffing experiment SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DIVERTOR; DEPOSITION; TRANSPORT; CARBON; C-13; REDEPOSITION; DISCHARGES; INJECTION; PLASMAS AB Unbalanced double null ELMy H-mode configurations in DIII-D are used to simulate the situation in ITER high triangularity, burning plasma magnetic equilibria, where the second X-point lies close to the top of the vacuum vessel, creating a secondary divertor region at the upper blanket modules. The measured plasma conditions in the outer secondary divertor closely duplicated those projected for ITER. (CH4)-C-13 was injected into the secondary outer divertor to simulate sputtering there. The majority of the C-13 found was in the secondary outer divertor. This material migration pattern is radically different than that observed for main wall (CH4)-C-13 injections into single null configurations where the deposition is primarily at the inner divertor. The implications for tritium codeposition resulting from sputtering at the secondary divertor in ITER are significant since release of tritium from Be co-deposits at the main wall bake temperature for ITER, 240 degrees C, is incomplete. The principal features of the measured C-13 deposition pattern have been replicated by the OEDGE interpretive code. (C) 2010 Elsevier B.V. All rights reserved. C1 [Elder, J. D.; Stangeby, P. C.] Univ Toronto, Inst Aerosp Studies, Toronto, ON M3H 5T6, Canada. [Wampler, W. R.; Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [McLean, A. G.; Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Allen, S. L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Bray, B. D.; Brooks, N. H.; Leonard, A. W.] Gen Atom Co, San Diego, CA 92186 USA. RP Elder, JD (reprint author), Univ Toronto, Inst Aerosp Studies, 4925 Dufferin St, Downsview, ON M3H 5T6, Canada. EM david@starfire.utias.utoronto.ca RI Unterberg, Ezekial/F-5240-2016 OI Unterberg, Ezekial/0000-0003-1353-8865 NR 18 TC 3 Z9 3 U1 0 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S513 EP S516 DI 10.1016/j.jnucmat.2010.11.039 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100116 ER PT J AU Goldston, RJ AF Goldston, Robert J. TI When is it valid to assume that heat flux is parallel to B? SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom AB It is frequently assumed that heat flow in the plasma scrape-off-layer is everywhere parallel to B, due to the strong anisotropy in electron thermal conductivity. This assumption is convenient but paradoxical. Here are examined three situations where this assumption has sometimes been applied: (1) extrapolating from midplane T-e(R) measurements to divertor heat flux profile, (2) determining the location of the separatrix from measured midplane T-e(R), combined with total heat flux leaving the plasma, and (3) predicting the heat flux to plasma-facing components in the scrape-off-layer of diverted plasmas. Numerical solution of the anisotropic, nonlinear heat equation suggests that the first application is poor, the second well justified, and the third far from accurate. Additional plasma physics effects may mitigate these results, but the simple assumption of dominant parallel heat flow due to anisotropy in electron thermal conductivity is not supported in many important cases. (C) 2010 Elsevier B.V. All rights reserved. C1 Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. RP Goldston, RJ (reprint author), Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. EM rgoldston@pppl.gov NR 4 TC 3 Z9 3 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S566 EP S569 DI 10.1016/j.jnucmat.2010.11.005 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100127 ER PT J AU Gray, TK Maingi, R Soukhanovskii, VA Surany, JE Ahn, JW McLean, AG AF Gray, T. K. Maingi, R. Soukhanovskii, V. A. Surany, J. E. Ahn, J-W McLean, A. G. TI Dependence of divertor heat flux widths on heating power, flux expansion, and plasma current in the NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID SPHERICAL TORUS EXPERIMENT; H-MODE DISCHARGES AB We report the dependence of the lower divertor surface heat flux profiles, measured from infrared thermography and mapped magnetically to the mid-plane on loss power into the scrape-off layer (P-LOSS), plasma current (I-p), and magnetic flux expansion (f(exp)), as well as initial results with lithium wall conditioning in NSTX. Here we extend previous studies [R. Maingi et al., J. Nucl. Mater. 363-365 (2007) 196-200] to higher triangularity similar to 0.7 and higher I-p <= 1.2 MA. First we note that the mid-plane heat flux width mapped to the mid-plane, lambda(mid)(q) is largely independent of P-LOSS for P-LOSS >= 4 MW. lambda(mid)(q) is also found to be relatively independent of f(exp); peak heat flux is strongly reduced as f(exp) is increased, as expected. Finally, lambda(mid)(q) is shown to strongly contract with increasing I-p such that lambda(mid)(q) alpha I-p(-1.6) with a peak divertor heat flux of q(div), (peak) similar to 15 MW/m(2) when I-p = 1.2 MA and P-LOSS similar to 6 MW. These relationships are then used to predict the divertor heat flux for the planned NSTX-Upgrade, with heating power between 10 and 15 MW, B-t = 1.01 and I-p= 2.0 MA for 5 s. (C) 2011 Elsevier B.V. All rights reserved. C1 [Gray, T. K.] ORISE, Oak Ridge, TN USA. [Gray, T. K.; Maingi, R.; Ahn, J-W; McLean, A. G.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Soukhanovskii, V. A.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Surany, J. E.] Princeton Univ, Princeton, NJ 08544 USA. RP Gray, TK (reprint author), POB 451,MS 34, Princeton, NJ 08543 USA. EM tkgray@pppl.gov NR 24 TC 34 Z9 34 U1 2 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S360 EP S364 DI 10.1016/j.jnucmat.2011.01.029 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100080 ER PT J AU Groth, M Porter, GD Rensink, ME Rognlien, TD Wiesen, S Wischmeier, M Eich, T Herrmann, A Jachmich, S Lasnier, CJ Muller, HW Watkins, JG Beurskens, MNA Bray, BD Brezinsek, S Brooks, NH Fenstermacher, ME Fuchs, C Huber, A Kallenbach, A Leonard, AW Meigs, A Rudakov, DL AF Groth, M. Porter, G. D. Rensink, M. E. Rognlien, T. D. Wiesen, S. Wischmeier, M. Eich, T. Herrmann, A. Jachmich, S. Lasnier, C. J. Mueller, H. W. Watkins, J. G. Beurskens, M. N. A. Bray, B. D. Brezinsek, S. Brooks, N. H. Fenstermacher, M. E. Fuchs, C. Huber, A. Kallenbach, A. Leonard, A. W. Meigs, A. Rudakov, D. L. CA DIII-D ASDEX Upgrade Teams JET EFDA Contributors TI Influence of cross-field drifts and chemical sputtering on simulations of divertor particle and heat loads in ohmic and L-mode plasmas in DIII-D, AUG, and JET using UEDGE SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID PHYSICS AB Measurements and simulations with the UEDGE code of radiated power, and ion saturation currents and power loads to the target plates have been compared for density scans in ohmic and low confinement mode plasmas in DIII-D, ASDEX Upgrade, and JET. Simulations including cross-field drifts and assuming elevated chemical sputtering yields of 3%-4% move the numerical solutions closer to many of the measurements compared to omitting the drifts and using the published Davis-Haasz Yields. Adopting these assumptions the simulations reproduce the measured currents and powers, and their functional dependence on upstream density to within a factor of 2, with the exception of the ion currents to the low field side target in ASDEX Upgrade and the high field side target in JET. The applicability of using enhanced sputtering yields is discussed by comparing measured and simulated emission from low charge state carbon in the divertor regions. (C) 2010 Published by Elsevier B.V. C1 [Groth, M.] Aalto Univ, Assoc EURATOM Tekes, Espoo 02015, Finland. [Groth, M.; Porter, G. D.; Rensink, M. E.; Rognlien, T. D.; Lasnier, C. J.; Fenstermacher, M. E.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Wiesen, S.; Brezinsek, S.; Huber, A.] EURATOM Assoziat, TEC, Forschungszentrum Julich GmbH, Julich, Germany. [Wischmeier, M.; Eich, T.; Herrmann, A.; Mueller, H. W.; Fuchs, C.; Kallenbach, A.] EURATOM Assoziat, Max Planck Inst Plasmaphys, Garching, Germany. [Jachmich, S.] Ecole Royale Mil, Assoc Euratom Belgian State, Brussels, Belgium. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Beurskens, M. N. A.; Meigs, A.] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon, Oxon, England. [DIII-D] Gen Atom Co, DIIID Natl Fus Facil, San Diego, CA 92121 USA. [Rudakov, D. L.] Univ Calif San Diego, La Jolla, CA 92093 USA. [ASDEX Upgrade Teams] ASDEX Upgrade, D-85748 Garching, Germany. [JET EFDA Contributors] JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. RP Groth, M (reprint author), Aalto Univ, Assoc EURATOM Tekes, Otakaari 4, Espoo 02015, Finland. EM mathias.groth@tkk.fi RI Groth, Mathias/G-2227-2013; Brezinsek, Sebastijan/B-2796-2017 OI Brezinsek, Sebastijan/0000-0002-7213-3326 NR 16 TC 11 Z9 11 U1 1 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S530 EP S534 DI 10.1016/j.jnucmat.2010.10.024 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100119 ER PT J AU Hill, DN Porter, GD Rognlien, TD AF Hill, D. N. Porter, G. D. Rognlien, T. D. TI Comparison between 2D simulation and the standard 2-point model for scrape-off layer transport including effects of spatially varying transport coefficients SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DIII-D; PLASMAS; CODE AB The effect of 2D transport in the tokamak scrape-off layer (SOL) on relating measured divertor heat-flux profiles to midplane plasma profiles is explored with the UEDGE code for a range of transport assumptions. The relationship between the divertor heat-flux profile and the midplane plasma temperature profile as determined from UEDGE is compared to commonly used predictions from 1D and "2-point" analytic relation. Results show that the parametric variation in lambda(q,div) with midplane separatrix values follows the conduction-limited 2-point model, though the actual value of q(parallel to) on a given flux surface is much lower than implied by the midplane T-e,T-sep. and lambda(q,div), is similar to twice as wide as expected from these models. Poloidal variations in chi result in minimal change to radial profiles and probably can't be distinguished experimentally from cases with uniform chi having the same flux-surface average value. (C) 2010 Elsevier B.V. All rights reserved. C1 [Hill, D. N.; Porter, G. D.; Rognlien, T. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Hill, DN (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. EM hilldn@fusion.gat.com NR 8 TC 0 Z9 0 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S570 EP S573 DI 10.1016/j.jnucmat.2010.11.013 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100128 ER PT J AU Hollmann, EM Umstadter, KR Doerner, RP Munoz, J Nishijima, D Pigarov, AY AF Hollmann, E. M. Umstadter, K. R. Doerner, R. P. Munoz, J. Nishijima, D. Pigarov, A. Yu TI Measurement of parallel transport of B+ and Al2+ impurities in a linear He+ plasma SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID GAS-TARGET DIVERTOR; ELECTRON-CAPTURE; IONS; JET AB Laser ablation is used to inject trace quantities (similar to 1%) of boron or aluminum impurities into steady-state, cylindrical He+ plasmas. The He+ plasmas have an axial flow velocity of about 2 x 10(3) m/s, corresponding to Mach number M similar to 0.2. The parallel flow of the resulting B+ or Al2+. impurity ions is measured directly using photomultiplier tubes with line filters. Perpendicular loss of the impurity ions is estimated indirectly from particle conservation. Rapid (< 100 mu s) entrainment of B+ in the background flow is observed; Al2+ ions appear to accelerate up to perhaps half the background flow velocity in the same time period. Preliminary comparisons with expected transport rates indicate that the observed parallel transport is approximate to 2-3x faster than expected from classical collisional transport, while perpendicular transport appears slightly slower than expected. (C) 2010 Elsevier B.V. All rights reserved. C1 [Hollmann, E. M.; Umstadter, K. R.; Doerner, R. P.; Nishijima, D.; Pigarov, A. Yu] Univ Calif San Diego, La Jolla, CA 92093 USA. [Munoz, J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Hollmann, EM (reprint author), Univ Calif San Diego, La Jolla, CA 92093 USA. EM ehollmann@ucsd.edu NR 19 TC 5 Z9 5 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S425 EP S429 DI 10.1016/j.jnucmat.2010.10.067 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100095 ER PT J AU Hollmann, EM Arnoux, G Commaux, N Eidietis, NW Evans, TE Granetz, RS Huber, A Humphreys, DA Izzo, VA James, AN Jernigan, TC Lehnen, M Maddaluno, G Paccagnella, R Parks, PB Philipps, V Reinke, ML Rudakov, DL Saint-Laurent, F Sizyuk, V Strait, EJ Wesley, JC Wong, CPC Yu, JH AF Hollmann, E. M. Arnoux, G. Commaux, N. Eidietis, N. W. Evans, T. E. Granetz, R. S. Huber, A. Humphreys, D. A. Izzo, V. A. James, A. N. Jernigan, T. C. Lehnen, M. Maddaluno, G. Paccagnella, R. Parks, P. B. Philipps, V. Reinke, M. L. Rudakov, D. L. Saint-Laurent, F. Sizyuk, V. Strait, E. J. Wesley, J. C. Wong, C. P. C. Yu, J. H. TI Plasma-surface interactions during tokamak disruptions and rapid shutdowns SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID TRANSIENT HEAT LOADS; RUNAWAY ELECTRONS; DIII-D; POWER LOAD; ITER; EROSION; JET; MITIGATION; IMPURITY; ARMOR AB Recent progress in understanding of disruptions and in developing methods to avoid disruption damage is presented. Nearly complete mitigation of conducted heat loads has been achieved with high-Z gas jet shutdown. The resulting local radiation heat flash melting in the main chamber might be a concern in ITER, especially with beryllium walls. During the current quench, significant vessel forces can occur due to halo currents I-halo; however, these are found to fall reliably below a boundary of (halo current fraction times halo current peaking factor) <0.7 both experimentally and numerically. Numerical simulations indicate that runaway electrons (REs) could cause serious damage to hard-to reach components in ITER, making their suppression a high priority. During the current quench, less than 20% of the density required for collisional suppression of REs appears to have been achieved. Collisional suppression of REs may have been achieved, however, in full-current RE beams with gas injection. (C) 2010 Elsevier B.V. All rights reserved. C1 [Hollmann, E. M.; Izzo, V. A.; James, A. N.; Rudakov, D. L.; Yu, J. H.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Arnoux, G.] JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Commaux, N.; Jernigan, T. C.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Eidietis, N. W.; Evans, T. E.; Humphreys, D. A.; Parks, P. B.; Strait, E. J.; Wesley, J. C.; Wong, C. P. C.] Gen Atom Co, San Diego, CA 92186 USA. [Granetz, R. S.; Reinke, M. L.] MIT Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. [Sizyuk, V.] Purdue Univ, W Lafayette, IN 47907 USA. [Huber, A.; Lehnen, M.; Philipps, V.] Forschungszentrum Julich GmbH, Inst Energieforsch Plasmaphys, D-52425 Julich, Germany. [Maddaluno, G.] Assoc EURATOM NAE Fus, Ctr Rice Frascati, I-00044 Rome, Italy. [Paccagnella, R.] Consorzio RFX, Assoc Euratom ENAE Fus, Padua, Italy. [Saint-Laurent, F.] CEA, IRFM, F-13108 St Paul Les Durance, France. RP Hollmann, EM (reprint author), Univ Calif San Diego, 9500 Gilman Dr, La Jolla, CA 92093 USA. EM ehollmann@ucsd.edu NR 62 TC 14 Z9 14 U1 0 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S27 EP S34 DI 10.1016/j.jnucmat.2010.10.009 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100005 ER PT J AU Jakubowski, MW Evans, TE Fenstermacher, ME Lasnier, CJ Wolf, RC Baylor, LR Boedo, JA Burrell, KH deGrassie, JS Gohil, P Mordijck, S Laengner, R Leonard, AW Moyer, RA Petrie, TW Petty, CC Pinsker, RI Rhodes, TL Schaffer, MJ Schmitz, O Snyder, PB Stoschus, H Osborne, TH Orlov, DM Unterberg, EA Watkins, JG AF Jakubowski, M. W. Evans, T. E. Fenstermacher, M. E. Lasnier, C. J. Wolf, R. C. Baylor, L. R. Boedo, J. A. Burrell, K. H. deGrassie, J. S. Gohil, P. Mordijck, S. Laengner, R. Leonard, A. W. Moyer, R. A. Petrie, T. W. Petty, C. C. Pinsker, R. I. Rhodes, T. L. Schaffer, M. J. Schmitz, O. Snyder, P. B. Stoschus, H. Osborne, T. H. Orlov, D. M. Unterberg, E. A. Watkins, J. G. TI Toroidally resolved structure of divertor heat flux in RMP H-mode discharges on DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID ASDEX-UPGRADE; ENERGY; ELMS; THERMOGRAPHY; DEPOSITION; TOKAMAKS; PLATES; EDGE AB As shown on DIII-D edge localized modes (ELMs) can be either completely eliminated or mitigated with resonant magnetic perturbation (RMP) fields. Two infrared cameras, separated 105 degrees toroidally, were used to make simultaneous measurements of ELM heat loads with high frame rates. Without the RMP fields ELMs display a variety of different heat load dynamics and a range of toroidal variability that is characteristic of their 3D structure. Comparing radial averages there is no asymmetry between two toroidal locations. With RMP-mitigated ELMs, the variability in the radially averaged power loads is significantly reduced and toroidal asymmetries in power loads are introduced. In addition to RMP ELM suppression scenarios an RMP scenario with only very small ELMs and very good confinement has been achieved. (C) 2010 Published by Elsevier B.V. C1 [Jakubowski, M. W.; Wolf, R. C.] Max Planck Inst Plasma Phys, IPP EURATOM Assoc, D-17491 Greifswald, Germany. [Evans, T. E.; Burrell, K. H.; deGrassie, J. S.; Gohil, P.; Leonard, A. W.; Petrie, T. W.; Petty, C. C.; Pinsker, R. I.; Schaffer, M. J.; Snyder, P. B.; Osborne, T. H.] Gen Atom Co, San Diego, CA 92186 USA. [Fenstermacher, M. E.; Lasnier, C. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Laengner, R.; Schmitz, O.; Stoschus, H.] Forschungszentrum Julich, Assoc FZJ EURATOM, TEC, Julich, Germany. [Baylor, L. R.; Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Boedo, J. A.; Mordijck, S.; Moyer, R. A.; Orlov, D. M.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Rhodes, T. L.] Univ Calif Los Angeles, Los Angeles, CA 92093 USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Jakubowski, MW (reprint author), Max Planck Inst Plasma Phys, IPP EURATOM Assoc, Wendelsteinstr 1, D-17491 Greifswald, Germany. EM marcin.jakubowski@ipp.mpg.de RI Orlov, Dmitriy/D-2406-2016; Unterberg, Ezekial/F-5240-2016 OI Orlov, Dmitriy/0000-0002-2230-457X; Unterberg, Ezekial/0000-0003-1353-8865 NR 23 TC 4 Z9 4 U1 2 U2 15 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S901 EP S905 DI 10.1016/j.jnucmat.2010.12.005 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100205 ER PT J AU James, AN Hollmann, EM Yu, JH Austin, ME Commaux, N Evans, T Humphreys, DA Jernigan, TC Parks, PB Putvinski, S Strait, EJ Tynan, GR Wesley, J AF James, A. N. Hollmann, E. M. Yu, J. H. Austin, M. E. Commaux, N. Evans, T. Humphreys, D. A. Jernigan, T. C. Parks, P. B. Putvinski, S. Strait, E. J. Tynan, G. R. Wesley, J. TI Pellet interaction with runaway electrons SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID ABLATION; PLASMA AB We describe results from recent experiments studying interaction of solid polystyrene pellets with a runaway electron current channel generated after cryogenic argon pellet rapid shutdown of DIII-D. Fast camera imaging shows the pellet trajectory and continuum emission from the subsequent explosion, with geometric calibration providing detailed explosion analysis and runaway energy. Electron cyclotron emission also occurs, associated with knock-on electrons broken free from the pellet by RE which then accelerate and runaway, and also with a short lived hot plasma blown off the pellet surface. In addition, we compare heating and explosion times from observations and a model of pellet heating and breakdown by runaway interaction. (C) 2011 Elsevier B.V. All rights reserved. C1 [James, A. N.; Hollmann, E. M.; Yu, J. H.; Tynan, G. R.] UC San Diego Ctr Energy Res, La Jolla, CA 92093 USA. [Austin, M. E.] Univ Texas Austin, Austin, TX 78712 USA. [Commaux, N.; Jernigan, T. C.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Evans, T.; Humphreys, D. A.; Parks, P. B.; Strait, E. J.; Wesley, J.] Gen Atom Co, San Diego, CA USA. [Putvinski, S.] ITER Org, St Paul Les Durance, France. RP James, AN (reprint author), UC San Diego Ctr Energy Res, 9500 Gilman Dr, La Jolla, CA 92093 USA. EM anjames@cer.ucsd.edu NR 14 TC 2 Z9 2 U1 1 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S849 EP S851 DI 10.1016/j.jnucmat.2011.01.135 PG 3 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100194 ER PT J AU Jaworski, MA Gerhardt, SP Morley, NB Abrams, T Kaita, R Kallman, J Kugel, H Majeski, R Ruzic, DN AF Jaworski, M. A. Gerhardt, S. P. Morley, N. B. Abrams, T. Kaita, R. Kallman, J. Kugel, H. Majeski, R. Ruzic, D. N. TI Macroscopic motion of liquid metal plasma facing components in a diverted plasma SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID LITHIUM LIMITER AB Liquid metal plasma facing components (PFCs) have been identified as an alternative material for fusion plasma experiments. The use of a liquid conductor where significant magnetic fields are present is considered risky, with the possibility of macroscopic fluid motion and possible ejection into the plasma core. Analysis is carried out on thermoelectric magnetohydrodynamic (TEMHD) forces caused by temperature-gradients in the liquid-container system itself in addition to scrape-off-layer currents interacting with the PFC from a diverted plasma. Capillary effects at the liquid-container interface will be examined which govern droplet ejection criteria. Stability of the interface is determined using linear stability methods. In addition to application to liquid metal PFCs, thin film liquid metal effects have application to current and future devices where off-normal events may liquefy portions of the first wall and other plasma facing components. (C) 2010 Elsevier B.V. All rights reserved. C1 [Jaworski, M. A.; Gerhardt, S. P.; Abrams, T.; Kaita, R.; Kallman, J.; Kugel, H.; Majeski, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Morley, N. B.] Univ Calif Los Angeles, MAE Dept, Los Angeles, CA 90095 USA. [Ruzic, D. N.] Univ Illinois, Urbana, IL 61801 USA. RP Jaworski, MA (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM mjaworsk@pppl.gov NR 20 TC 7 Z9 8 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S985 EP S988 DI 10.1016/j.jnucmat.2010.10.074 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100223 ER PT J AU Joseph, I Rognlien, TD AF Joseph, I. Rognlien, T. D. TI Assessment of thermo-electric techniques for scrape-off layer current drive in flux-tube geometry SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID PLASMAS; POINT; FIELD AB The magnitude of the parallel current that can be driven by asymmetries between divertor target plates is calculated in magnetic flux-tube geometry. Current can be driven between ends of the flux-tube by passive techniques that generate a thermo-electric potential by heating or cooling one side relative to the other through pumping or neutral gas injection. The induced thermo-electric potential depends on the total particle flux pumped relative to the total recycling flux. For the geometry considered, pumping efficiency is higher for pumping by the target plate or from the private flux zone than for pumping from the outer side of the plate. Neutral gas injection is not as effective at generating an asymmetry. An important constraint for these methods may be the additional heat flux delivered to the hotter target, but additional Ohmic heating is much smaller than that generated by electrical biasing. (C) 2011 Published by Elsevier B.V. C1 [Joseph, I.] Lawrence Livermore Natl Lab, Fus Energy Program L630, Livermore, CA 94551 USA. RP Joseph, I (reprint author), Lawrence Livermore Natl Lab, Fus Energy Program L630, 7000 East Ave, Livermore, CA 94551 USA. EM joseph5@llnl.gov NR 14 TC 2 Z9 2 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S932 EP S935 DI 10.1016/j.jnucmat.2010.11.056 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100212 ER PT J AU Jung, S Surla, V Gray, TK Andruczyk, D Ruzic, DN AF Jung, S. Surla, V. Gray, T. K. Andruczyk, D. Ruzic, D. N. TI Characterization of a theta-pinch plasma using triple probe diagnostic SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DISRUPTIONS AB Plasma diagnostics were carried out in a theta-pinch device to investigate the applicability for plasma-material interaction under fusion-like conditions. A series of triple probe diagnostics show that the plasma is sustained for approximately 80 mu s at each pulse, with 3.0 (10)(21) m(-3) plasma density and up to 40 eV electron temperature when a 32 mu F main capacitor is discharged at 20 kV. In order to increase plasma density and temperature, an RF antenna is installed near one end of a Pyrex tube and a 50 mu F preionization capacitor is connected to an electrode placed at the same end as the antenna. In this configuration, several time delays between the main and preionization capacitors are tested. When the preionization capacitor was triggered 45 mu s before the main bank discharge, it resulted in high energetic plasma being obtained with a few density spikes at 10(22) m(-3) and electron temperature around 100 eV. Published by Elsevier B.V. C1 [Jung, S.; Surla, V.; Andruczyk, D.; Ruzic, D. N.] Univ Illinois, Dept Nucl Plasma & Radiol Engn, Ctr Plasma Mat Interact, Urbana, IL 61801 USA. [Gray, T. K.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. [Gray, T. K.] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Jung, S (reprint author), 216 Talbot,104 S Wright St, Urbana, IL 61801 USA. EM jung73@illinois.edu NR 8 TC 5 Z9 5 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S993 EP S995 DI 10.1016/j.jnucmat.2011.01.046 PG 3 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100225 ER PT J AU Kent, PRC Dadras, J Krstic, PS AF Kent, P. R. C. Dadras, J. Krstic, P. S. TI Improved hydrocarbon potentials for sputtering studies SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID GRAPHITE AB We refit the REBO hydrocarbon potentials by reparameterizing the bond lengths and energies of hydrocarbons with recent data, using systematic addition of the parameters of all hydrocarbons CxDy with x equal or less than four. In addition we also refit the short-distance potentials to reproduce a repulsive ZBL term. To test the improved potential, we performed large scale molecular dynamics calculations of amorphous deuterated carbon bombarded by deuterium, and compare our results with data obtained using the REBO potential as well as with recent experiments. (C) 2010 Elsevier B.V. All rights reserved. C1 [Dadras, J.; Krstic, P. S.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Kent, P. R. C.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Dadras, J.; Krstic, P. S.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RP Krstic, PS (reprint author), Oak Ridge Natl Lab, Div Phys, Bldg 6010,MS 6272,POB 2008, Oak Ridge, TN 37831 USA. EM krsticp@ornl.gov RI Kent, Paul/A-6756-2008 OI Kent, Paul/0000-0001-5539-4017 NR 16 TC 1 Z9 1 U1 1 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S183 EP S186 DI 10.1016/j.jnucmat.2010.08.051 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100040 ER PT J AU Kolasinski, RD Cowgill, DF Causey, RA AF Kolasinski, R. D. Cowgill, D. F. Causey, R. A. TI A continuum-scale model of hydrogen precipitate growth in tungsten plasma-facing materials SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DEUTERIUM; BUBBLES; METALS; STATE AB The low solubility of hydrogen in tungsten leads to the growth of near-surface hydrogen precipitates during high-flux plasma exposure, strongly affecting migration and trapping in the material. We have developed a continuum-scale model of precipitate growth that leverages existing techniques for simulating the evolution of He-3 gas bubbles in metal tritides. The present approach focuses on bubble growth by dislocation loop punching, assuming a diffusing flux to nucleation sites that arises from ion implantation. The bubble size is dictated by internal hydrogen pressure, the mechanical properties of the material, as well as local stresses. In this article, we investigate the conditions required for bubble growth. Recent focused ion beam (FIB) profiling studies that reveal the sub-surface damage structure provide an experimental database for comparison with the modeling results. (C) 2010 Elsevier B.V. All rights reserved. C1 [Kolasinski, R. D.; Cowgill, D. F.; Causey, R. A.] Sandia Natl Labs, Hydrogen & Met Sci Dept, Livermore, CA 94550 USA. RP Kolasinski, RD (reprint author), Sandia Natl Labs, Hydrogen & Met Sci Dept, POB 969,MS 9161, Livermore, CA 94550 USA. EM rkolasi@sandia.gov NR 20 TC 8 Z9 8 U1 3 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S676 EP S679 DI 10.1016/j.jnucmat.2010.10.077 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100153 ER PT J AU Krasheninnikova, NS Tang, XZ AF Krasheninnikova, Natalia S. Tang, Xianzhu TI Equilibrium properties of the plasma sheath with a magnetic field parallel to the wall SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID TARGET FUSION; TRANSITION; CONFIGURATION; SURFACE; SPACE AB Motivated by the Magnetized Target Fusion (MTF), a systematic investigation of the equilibrium properties of a 1D plasma sheath with a magnetic field parallel to the wall was carried out using analytical theory and kinetic simulations. Initially uniform full Maxwellian plasma consisting of equal temperature collisionless electrons and ions is allowed to interact with a perfectly absorbing conducting wall, which charges positively due to large ions gyro-radii. The analysis of the steady-state plasma and field profiles reveals the importance of the relation between electron and ion thermal Larmor radii and plasma Debye length. In particular, the sheath width scaling, the details of the particle flows and the break-down of force balance components exhibit different behaviors in three possible regimes. Despite our primary motivation, the results in this paper can also be applicable to the divertor and the first wall of tokamaks. (C) 2010 Elsevier B.V. All rights reserved. C1 [Krasheninnikova, Natalia S.; Tang, Xianzhu] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Krasheninnikova, NS (reprint author), POB 1663,MS P365, Los Alamos, NM 87545 USA. EM nkrash@lanl.gov NR 38 TC 0 Z9 0 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S187 EP S191 DI 10.1016/j.jnucmat.2010.11.038 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100041 ER PT J AU Kugel, HW Bell, MG Allain, JP Bell, RE Ding, S Gerhardt, SP Jaworski, MA Kaita, R Kallman, J Kaye, SM LeBlanc, BP Maingi, R Majeski, R Maqueda, R Mansfield, DK Mueller, D Nygren, R Paul, SF Raman, R Roquemore, AL Sabbagh, SA Schneider, H Skinner, CH Soukhanovskii, VA Taylor, CN Timberlake, JR Wampler, WR Zakharov, LE Zweben, SJ AF Kugel, H. W. Bell, M. G. Allain, J. P. Bell, R. E. Ding, S. Gerhardt, S. P. Jaworski, M. A. Kaita, R. Kallman, J. Kaye, S. M. LeBlanc, B. P. Maingi, R. Majeski, R. Maqueda, R. Mansfield, D. K. Mueller, D. Nygren, R. Paul, S. F. Raman, R. Roquemore, A. L. Sabbagh, S. A. Schneider, H. Skinner, C. H. Soukhanovskii, V. A. Taylor, C. N. Timberlake, J. R. Wampler, W. R. Zakharov, L. E. Zweben, S. J. CA NSTX Res Team TI NSTX plasma response to lithium coated divertor SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID LIQUID LITHIUM AB NSTX experiments have explored lithium evaporated on a graphite divertor and other plasma-facing components in both L- and H- mode confinement regimes heated by high-power neutral beams. Improvements in plasma performance have followed these lithium depositions, including a reduction and eventual elimination of the HeGDC time between discharges, reduced edge neutral density, reduced plasma density, particularly in the edge and the SOL, increased pedestal electron and ion temperature, improved energy confinement and the suppression of ELMs in the H-mode. However, with improvements in confinement and suppression of ELMs, there was a significant secular increase in the effective ion charge Z(eff) and the radiated power in H-mode plasmas as a result of increases in the carbon and medium-Z metallic impurities. Lithium itself remained at a very low level in the plasma core, < 0.1%. Initial results are reported from operation with a Liquid Lithium Divertor (LLD) recently installed. (C) 2010 Elsevier B.V. All rights reserved. C1 [Kugel, H. W.; Bell, M. G.; Bell, R. E.; Gerhardt, S. P.; Jaworski, M. A.; Kaita, R.; Kallman, J.; Kaye, S. M.; LeBlanc, B. P.; Majeski, R.; Maqueda, R.; Mansfield, D. K.; Mueller, D.; Paul, S. F.; Roquemore, A. L.; Schneider, H.; Skinner, C. H.; Timberlake, J. R.; Zakharov, L. E.; Zweben, S. J.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Allain, J. P.; Taylor, C. N.] Purdue Univ, W Lafayette, IN 47907 USA. [Ding, S.] Acad Sci, Inst Plasma Phys, Hefei, Peoples R China. [Maingi, R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Nygren, R.; Wampler, W. R.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Raman, R.] Univ Washington, Seattle, WA 98195 USA. [Sabbagh, S. A.] Columbia Univ, New York, NY 10027 USA. [Soukhanovskii, V. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Kugel, HW (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM hkugel@pppl.gov OI Allain, Jean Paul/0000-0003-1348-262X NR 21 TC 16 Z9 16 U1 3 U2 16 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S400 EP S404 DI 10.1016/j.jnucmat.2010.12.016 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100089 ER PT J AU Lasnier, CJ Makowski, MA Boedo, JA Allen, SL Brooks, NH Hill, DN Leonard, AW Watkins, JG West, WP AF Lasnier, C. J. Makowski, M. A. Boedo, J. A. Allen, S. L. Brooks, N. H. Hill, D. N. Leonard, A. W. Watkins, J. G. West, W. P. TI Scaling of divertor heat flux profile widths in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID H-MODE DISCHARGES; POWER; ELMS AB New scalings of the dependence of divertor heat flux peak and profile width, important parameters for the design of future large tokamaks, have been obtained from recent DIII-D experiments. We find the peak heat flux depends linearly on input power, decreases linearly with increasing density, and increases linearly with plasma current. The profile width has a weak dependence on input power, is independent of density up to the onset of detachment, and is inversely proportional to the plasma current. We compare these results with previously published scalings, and present mathematical expressions incorporating these results. (C) 2011 Elsevier B.V. All rights reserved. C1 [Lasnier, C. J.; Brooks, N. H.; Leonard, A. W.; West, W. P.] Gen Atom Co, San Diego, CA 92186 USA. [Lasnier, C. J.; Makowski, M. A.; Allen, S. L.; Hill, D. N.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Boedo, J. A.] Univ Calif San Diego, San Diego, CA 92093 USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Lasnier, CJ (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA. EM Lasnier@LLNL.gov NR 9 TC 6 Z9 6 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S353 EP S356 DI 10.1016/j.jnucmat.2010.12.008 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100078 ER PT J AU Likonen, J Hakola, A Strachan, J Coad, JP Widdowson, A Koivuranta, S Hole, DE Mizohata, K Rubel, M Jachmich, S Stamp, M AF Likonen, J. Hakola, A. Strachan, J. Coad, J. P. Widdowson, A. Koivuranta, S. Hole, D. E. Mizohata, K. Rubel, M. Jachmich, S. Stamp, M. CA JET-EFDA Contributors TI Deposition of C-13 tracer in the JET MkII-HD divertor SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID FIELD; EDGE AB Migration of C-13 has been investigated at JET by puffing (CH4)-C-13 into the outer midplane at the end of the 2007 campaign. The C-13 deposition profile was measured with secondary ion mass spectrometry (SIMS) and Rutherford backscattering (RBS) techniques. C-13 was mainly found on Tile 1 and near the outer strike point (OSP) on Tile 7. The C-13 transport was modelled with the EDGE2D/NIMBUS code. Previous work indicates that migration pathways are: (1) through the main chamber scrape-off layer (SOL), (2) migration through the private flux region (PFR) aided by E x B drifts and (3) neutral migration originating near the strike points. The main contribution of this paper is to further describe the neutral migration. (C) 2010 EURATOM. Published by Elsevier B.V. All rights reserved. C1 [Likonen, J.] Assoc EURATOM Tekes, VTT, Tech Res Ctr Finland, FI-02044 Espoo, Finland. [Strachan, J.] Princeton Univ, PPPL, Princeton, NJ 08543 USA. [Coad, J. P.; Widdowson, A.] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Hole, D. E.] Univ Sussex, Sch Sci & Technol, Dept Engn & Design, Brighton BN1 9QH, E Sussex, England. [Mizohata, K.] Univ Helsinki, Dept Phys, Assoc EURATOM Tekes, FI-00014 Helsinki, Finland. [Rubel, M.] Royal Inst Technol, Assoc EURATOM VR, Alfven Lab, S-10044 Stockholm, Sweden. [Jachmich, S.; Stamp, M.] EURATOM Assoc Belgian State, Ecole Royale Mil, Plasma Phys Lab, Brussels, Belgium. RP Likonen, J (reprint author), Assoc EURATOM Tekes, VTT, Tech Res Ctr Finland, POB 1000, FI-02044 Espoo, Finland. EM jari.likonen@vtt.fi NR 8 TC 2 Z9 2 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S250 EP S253 DI 10.1016/j.jnucmat.2010.10.076 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100055 ER PT J AU Makowski, MA Lasnier, CJ Leonard, AW Boedo, J Watkins, JG Hill, DN AF Makowski, M. A. Lasnier, C. J. Leonard, A. W. Boedo, J. Watkins, J. G. Hill, D. N. TI Comparison of upstream T-e profiles with downstream heat flux profiles and their implications on parallel heat transport in the SQL in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID CODE AB In the DIII-D tokamak, we measure the downstream target plate heat flux with an IRTV camera and relate it to Thomson and Langmuir probe profile measurements of n(e) and T-e in the scrape-off layer (SOL) by projecting all measurements to the out-board midplane in order to assess the competition between parallel and cross-field heat transport. We analyze the measured characteristic widths associated with the SOL and model the results with the UEDGE code to provide insight into the mechanisms defining the various widths and the implications they have on transport. Analysis of the scaling of the heat flux width reveals an essentially inverse dependence on I-p. The B-t dependence is extremely weak to non-existent. No dependence was found on the shear and normalized pressure gradient at the 95% flux surface (s(95), alpha(95)), nor on P-soi, n(e) or P-inj. (C) 2010 Elsevier B.V. All rights reserved. C1 [Makowski, M. A.; Leonard, A. W.] Gen Atom Co, San Diego, CA 92186 USA. [Makowski, M. A.; Lasnier, C. J.; Hill, D. N.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Boedo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Makowski, MA (reprint author), Gen Atom Co, POB 85608,MS 13-153, San Diego, CA 92186 USA. EM makowski1@llnl.gov NR 7 TC 2 Z9 2 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S357 EP S359 DI 10.1016/j.jnucmat.2010.09.039 PG 3 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100079 ER PT J AU Maqueda, RJ Stotler, DP Zweben, SJ AF Maqueda, R. J. Stotler, D. P. Zweben, S. J. CA NSTX Team TI Intermittency in the scrape-off layer of the National Spherical Torus Experiment during H-mode confinement SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DIII-D TOKAMAK; ALCATOR C-MOD; EDGE TURBULENCE; TRANSPORT; BOUNDARY; NSTX AB A gas puff imaging diagnostic is used in the National Spherical Tokamak Experiment [M. Ono, et al., Nucl. Fusion 40 (2000) 5571 to study the edge turbulence and intermittency present during H-mode discharges. In the case of low power Ohmic H-modes the suppression of turbulence/blobs is maintained through the duration of the (short lived) H-modes. Similar quiescent edges are seen during the early stages of H-modes created with the use of neutral beam injection. Nevertheless, as time progresses following the L-H transition, turbulence and blobs re-appear although at a lower level than that typically seen during L-mode confinement. It is also seen that the time-averaged SOL emission profile broadens, as the power loss across the separatrix increases. These broad profiles are characterized by a large level of fluctuations and intermittent events. Published by Elsevier B.V. C1 [Maqueda, R. J.; Stotler, D. P.; Zweben, S. J.; NSTX Team] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. RP Maqueda, RJ (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08540 USA. EM rmaqueda@pppl.gov RI Stotler, Daren/J-9494-2015 OI Stotler, Daren/0000-0001-5521-8718 NR 20 TC 8 Z9 8 U1 0 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S459 EP S462 DI 10.1016/j.jnucmat.2010.11.002 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100103 ER PT J AU McLean, AG Stangeby, PC Bray, BD Brezinsek, S Brooks, NH Davis, JW Isler, RC Kirschner, A Laengner, R Lasnier, CJ Mu, Y Munoz, J Rudakov, DL Schmitz, O Unterberg, EA Watkins, JG Whyte, DG Wong, CPC AF McLean, A. G. Stangeby, P. C. Bray, B. D. Brezinsek, S. Brooks, N. H. Davis, J. W. Isler, R. C. Kirschner, A. Laengner, R. Lasnier, C. J. Mu, Y. Munoz, J. Rudakov, D. L. Schmitz, O. Unterberg, E. A. Watkins, J. G. Whyte, D. G. Wong, C. P. C. TI Quantification of chemical erosion in the DIII-D divertor and implications for ITER SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID FLUX DEPENDENCE; CARBON AB The Porous Plug Injector (PPI) has proven to be an invaluable diagnostic for in situ characterization and quantification of erosion phenomena in DIII-D. Previous work has led to derivation of three primary figures of merit for chemical erosion (CE) in attached and cold divertor conditions: relative intensity of C+ chemical and physical sources, the CE yield (Y-chem) and effective photon efficiencies for chemically eroded products. Application of these figures for accounting of observed absolutely calibrated CI and CII emission intensities is demonstrated to produce a self-consistent solution at the DIII-D targets. Reinterpretation of the CI (C degrees) spectral lineshape profile supports the relative roles of local chemical versus physical sputtering as previously determined for CII (C+). Comparison of calculated in situ Y-chem to that measured ex situ suggests a tokamak-specific lower energy threshold for CE and has potentially major implications for prediction of tritium co-deposition near the divertor targets in ITER. Published by Elsevier B.V. C1 [McLean, A. G.; Isler, R. C.; Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Stangeby, P. C.; Davis, J. W.; Mu, Y.] Univ Toronto, Inst Aerosp Studies, Toronto, ON M3H 5T6, Canada. [Bray, B. D.; Brooks, N. H.; Wong, C. P. C.] Gen Atom Co, San Diego, CA 92186 USA. [Brezinsek, S.; Kirschner, A.; Laengner, R.; Schmitz, O.] Forschungszentrum Julich, Inst Fuer Plasmaphys, D-52425 Julich, Germany. [Lasnier, C. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Munoz, J.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. [Rudakov, D. L.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Whyte, D. G.] MIT Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. RP McLean, AG (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM amclean@pppl.gov RI Unterberg, Ezekial/F-5240-2016; Brezinsek, Sebastijan/B-2796-2017; OI Unterberg, Ezekial/0000-0003-1353-8865; Brezinsek, Sebastijan/0000-0002-7213-3326; Isler, Ralph/0000-0002-5368-7200; Kirschner, Andreas/0000-0002-3213-3225 NR 20 TC 0 Z9 0 U1 1 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S141 EP S144 DI 10.1016/j.jnucmat.2011.01.044 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100030 ER PT J AU Meyer, FW Harris, PR Zhang, H Jacob, W Schwarz-Selinger, T von Toussaint, U AF Meyer, F. W. Harris, P. R. Zhang, H. Jacob, W. Schwarz-Selinger, T. von Toussaint, U. TI Erosion of a-C:D thin films by low energy D+, D-2(+), and D-3(+) ion beam irradiation SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID MOLECULAR-D-IONS; ATJ GRAPHITE; HYDROCARBON FILMS; CHEMICAL EROSION; BOMBARDMENT; SURFACE; YIELDS AB We report measurements of total C sputtering yields for room temperature a-C:D thin films irradiated by equal velocity D+, D-2(+) and D-3(+) beams in the energy range 30-200 eV/D. The C sputtering yields were deduced from crater volumes determined from 2-D ellipsometry scans, the known thin film C density, and the measured total number of incident D particles during the beam exposures. While our results for incident D-3(+) ions are in good agreement with mass loss measurements for D-3(+), our results for D-2(+) and D+ incident ions fall systematically below the D-3(+) results, indicating a significant molecular size effect. A molecular size effect has been previously found for CD4 production during low energy impact of same velocity D+, D-2(+), and D-3(+) ions incident on ATJ graphite, which, however, was smaller in magnitude. The ellipsometry-based total C sputtering yields are compared with recently deduced total C production yields based on a mass spectroscopy approach. (C) 2010 Published by Elsevier B.V. C1 [Meyer, F. W.; Harris, P. R.; Zhang, H.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Jacob, W.; Schwarz-Selinger, T.; von Toussaint, U.] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany. RP Meyer, FW (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. EM meyerfw@ornl.gov RI Schwarz-Selinger, Thomas/J-7714-2012; OI Jacob, Wolfgang/0000-0003-3504-142X NR 16 TC 3 Z9 3 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S125 EP S128 DI 10.1016/j.jnucmat.2010.08.037 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100026 ER PT J AU Mu, Y Elder, JD Stangeby, PC McLean, AG AF Mu, Y. Elder, J. D. Stangeby, P. C. McLean, A. G. TI 3D-DIVIMP(HC) code modeling of DIII-D DiMES porous plug injector experiments SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom AB A Porous Plug Injector (PPI) system for the Divertor Material Evaluation System (DIMES) on DIII-D has been employed for in situ study of chemical erosion in the tokamak divertor environment. The 3D-DIVIMP(HC) code has been applied to the interpretation of the CI, CII and other spectroscopic measurements made at the PPI location, for (a) the synthetic source due to injection of CH4 through the PPI, and (b) the natural emission from the PPI head itself, which was inserted above surrounding graphite tiles by similar to 0.3 mm. The code successfully replicated the MDS (spectrometer)-measured absolute emissions of CH, CI, CII 427 nm, 514 nm, and 658 nm [1] and the DiMES TV-measured spatial shapes of the CH, CI, and CII 514 nm [1] emission "clouds" to within the combined uncertainties. It is thus concluded that the most important physics and chemistry of chemical sputtering have most likely been included in the model. (C) 2011 Elsevier B.V. All rights reserved. C1 [Mu, Y.] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA. [Elder, J. D.; Stangeby, P. C.] Univ Toronto, Inst Aerosp Studies, Toronto, ON M3H 5T6, Canada. [McLean, A. G.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Mu, Y (reprint author), Univ Calif San Diego, Energy Res Ctr, 9500 Gilman Dr, La Jolla, CA 92093 USA. EM yrmu@starfire.utias.utoronto.ca NR 13 TC 0 Z9 0 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S145 EP S148 DI 10.1016/j.jnucmat.2010.12.319 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100031 ER PT J AU Myra, JR Russell, DA D'Ippolito, DA Ahn, JW Maingi, R Maqueda, RJ Lundberg, DP Stotler, DP Zweben, SJ Umansky, M AF Myra, J. R. Russell, D. A. D'Ippolito, D. A. Ahn, J-W. Maingi, R. Maqueda, R. J. Lundberg, D. P. Stotler, D. P. Zweben, S. J. Umansky, M. TI Turbulent transport and the scrape-off-layer width SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID H-MODE DISCHARGES; COHERENT STRUCTURES; HEAT-FLUX; DIVERTOR; EDGE; PHYSICS; NSTX AB The two-dimensional fluid turbulence code SOLT is employed to study the role of midplane turbulence on the scrape-off-layer (SOL) heat flux width of tokamak plasmas. The physics simulated includes curvature-driven-interchange modes, sheath losses, and perpendicular turbulent diffusive and convective (blob) transport. Midplane SOL profiles of density, temperature and parallel heat flux are obtained from the simulation and compared with experimental results from the National Spherical Torus Experiment (NSTX) to study the scaling of the heat flux width with power and plasma current. It is concluded that midplane turbulence is the main contributor to the SOL width for the low power ELM-free H-mode discharges studied, while additional physics is required to explain the plasma current scaling of the SOL width observed experimentally in higher power discharges. Additional simulations predict a transition to a convectively-dominated SOL at critical values of power and connection length. (C) 2010 Elsevier B.V. All rights reserved. C1 [Myra, J. R.; Russell, D. A.; D'Ippolito, D. A.] Lodestar Res Corp, Boulder, CO USA. [Ahn, J-W.; Maingi, R.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Maqueda, R. J.] Nova Photon Inc, Princeton, NJ USA. [Maqueda, R. J.; Lundberg, D. P.; Stotler, D. P.; Zweben, S. J.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Umansky, M.] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Myra, JR (reprint author), Lodestar Res Corp, Boulder, CO USA. EM jrmyra@lodestar.com RI Stotler, Daren/J-9494-2015 OI Stotler, Daren/0000-0001-5521-8718 NR 13 TC 7 Z9 7 U1 1 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S605 EP S608 DI 10.1016/j.jnucmat.2010.10.030 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100136 ER PT J AU Nichols, J Roquemore, AL Davis, W Mansfield, DK Skinner, CH Feibush, E Boeglin, W Patel, R Abolafia, D Hartzfeld, K Maqueda, R AF Nichols, J. Roquemore, A. L. Davis, W. Mansfield, D. K. Skinner, C. H. Feibush, E. Boeglin, W. Patel, R. Abolafia, D. Hartzfeld, K. Maqueda, R. TI 3-D reconstruction of pre-characterized lithium and tungsten dust particle trajectories in NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom AB Calibrated amounts of 40 mu m lithium dust and 10 mu m tungsten powder have been dropped from above into the SOL of the National Spherical Torus Experiment (NSTX) to benchmark modeling of dust dynamics and transport. By combining the output from two visible-range fast cameras, 3-D trajectories are reliably obtained and have resulted in the generation of several hundred individual particle tracks. Particles are observed to undergo a variety of accelerations both parallel and perpendicular to the magnetic field, as well as abrupt large-angle changes in direction. All tracks obtained to date display particle motion that is constrained to within a few centimeters of the last closed flux surface. The 3-D trajectories are presented and compared to the location of the last closed flux surface as determined by EFIT. (C) 2010 Elsevier B.V. All rights reserved. C1 [Nichols, J.; Roquemore, A. L.; Davis, W.; Mansfield, D. K.; Skinner, C. H.; Feibush, E.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Nichols, J.] Cornell Univ, Ithaca, NY 14853 USA. [Boeglin, W.; Patel, R.] Florida Int Univ, Miami, FL 33199 USA. [Abolafia, D.] Bergen Cty Acad, Hackensack, NJ 07601 USA. [Hartzfeld, K.] Toms River High Sch, Toms River, NJ 08753 USA. [Maqueda, R.] Nova Photon Inc, Princeton, NJ 08540 USA. RP Nichols, J (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM jnichols@pppl.gov; dmansfie@pppl.gov OI Davis, William/0000-0003-0666-7247 NR 10 TC 10 Z9 10 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1098 EP S1101 DI 10.1016/j.jnucmat.2010.10.049 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100249 ER PT J AU Otsuka, T Shimada, M Kolasinski, R Calderoni, P Sharpe, JP Ueda, Y Hatano, Y Tanabe, T AF Otsuka, T. Shimada, M. Kolasinski, R. Calderoni, P. Sharpe, J. P. Ueda, Y. Hatano, Y. Tanabe, T. TI Application of tritium imaging plate technique to examine tritium behaviors on the surface and in the bulk of plasma-exposed materials SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID FUSION-REACTOR; HYDROGEN PERMEATION; FACING COMPONENTS; STAINLESS-STEELS; TRANSPORT; RELEASE AB We have applied a tritium imaging plate technique to measure the tritium distribution profile on surface and in bulk of various metal materials after exposure to a deuterium-tritium plasma in a linear plasma experimental apparatus. The experimental tritium concentration profiles in mm range are interpreted according to a simple hydrogen diffusion model in each metal. We found that a significant amount of tritium is localized in near surface regions and is clearly distinguishable from tritium diffused in the bulk. The amount of surface tritium is not likely correlated to bulk properties (diffusivity and solubility), but is related to trapping in surface defects or metal impurities such as oxide and carbide. (C) 2010 Elsevier B.V. All rights reserved. C1 [Otsuka, T.; Tanabe, T.] Kyushu Univ, Interdisciplinary Grad Sch Engn & Sci, Fukuoka 812, Japan. [Shimada, M.; Calderoni, P.; Sharpe, J. P.] Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID USA. [Kolasinski, R.] Sandia Natl Labs, Hydrogen & Met Sci Dept, Livermore, CA 94550 USA. [Ueda, Y.] Osaka Univ, Grad Sch Engn, Suita, Osaka 565, Japan. [Hatano, Y.] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama, Japan. RP Otsuka, T (reprint author), Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan. EM t-otsuka@nucl.kyushu-u.ac.jp OI Shimada, Masashi/0000-0002-1592-843X; Calderoni, Pattrick/0000-0002-2316-6404 NR 14 TC 6 Z9 6 U1 1 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S769 EP S772 DI 10.1016/j.jnucmat.2010.11.046 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100175 ER PT J AU Petrie, TW Evans, TE Fenstermacher, ME Mordijck, S Brooks, NH Ferron, JR Hudson, B Hyatt, AW Lasnier, CJ Leonard, AW Luce, TC Moyer, RA Politzer, PA Schaffer, MJ Snyder, PB Watkins, JG AF Petrie, T. W. Evans, T. E. Fenstermacher, M. E. Mordijck, S. Brooks, N. H. Ferron, J. R. Hudson, B. Hyatt, A. W. Lasnier, C. J. Leonard, A. W. Luce, T. C. Moyer, R. A. Politzer, P. A. Schaffer, M. J. Snyder, P. B. Watkins, J. G. TI First results examining the compatibility of RMP ELM suppression with the radiating divertor in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID EDGE LOCALIZED MODES; PEDESTAL; PLASMAS; COLLISIONALITY; JET AB We report on recent DIII-D experiments that integrate edge localized mode (ELM) suppression using resonant magnetic perturbations (RMPs) with divertor heat flux reduction under radiating divertor conditions. Our results illustrate the limitations in maintaining ELM suppression at gas puffing levels that were representative of good puff and pump operation in previous experiments without RMP. The electron pressure gradient in the pedestal (del P-e) increased steadily during gas puffing and ELMs returned once del P-e reached values consistent with the peeling-ballooning stability limit, as determined by edge stability analysis. Even with this return of ELMs, a radiating divertor with RMP generated higher levels of total radiated power (similar to 40%) than comparable standard ELMing discharges without RMP at the same density. Differences in the accumulation of the seed argon in the core plasma between RMP and non-RMP during puff and pump were less than 20%. (C) 2010 Elsevier B.V. All rights reserved. C1 [Petrie, T. W.; Evans, T. E.; Brooks, N. H.; Ferron, J. R.; Hyatt, A. W.; Leonard, A. W.; Luce, T. C.; Politzer, P. A.; Schaffer, M. J.; Snyder, P. B.] Gen Atom Co, San Diego, CA 92186 USA. [Fenstermacher, M. E.; Lasnier, C. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Mordijck, S.; Moyer, R. A.] Univ Calif San Diego, San Diego, CA 92093 USA. [Hudson, B.] Oak Ridge Inst Sci Educ, Oak Ridge, TN 37830 USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Petrie, TW (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA. EM petrie@fusion.gat.com NR 14 TC 4 Z9 4 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S906 EP S909 DI 10.1016/j.jnucmat.2010.09.040 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100206 ER PT J AU Pitcher, CS Andrew, P Barnsley, R Bertalot, L Counsell, GG Encheva, A Feder, RE Hatae, T Johnson, DW Kim, J Kusama, Y Lee, HG Mukhin, EE Reichle, R Thomas, DM Tugarinov, SN Udintsev, VS Vasu, P Vayakis, G Walker, CI Walsh, MJ Yang, QW Yatsuka, E Zhao, J Zvonkov, AV AF Pitcher, C. S. Andrew, P. Barnsley, R. Bertalot, L. Counsell, G. G. Encheva, A. Feder, R. E. Hatae, T. Johnson, D. W. Kim, J. Kusama, Y. Lee, H. G. Mukhin, E. E. Reichle, R. Thomas, D. M. Tugarinov, S. N. Udintsev, V. S. Vasu, P. Vayakis, G. Walker, C. I. Walsh, M. J. Yang, Q. W. Yatsuka, E. Zhao, J. Zvonkov, A. V. TI Plasma boundary and first-wall diagnostics in ITER SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DIVERTOR AB ITER plasma boundary and first-wall diagnostics are summarized in terms of their physical implementation and physics motivation. The challenge of extracting diagnostic signals while maintaining nuclear shielding is discussed, as well as the problems associated with high levels of erosion and redeposition. (C) 2011 Published by Elsevier B.V. C1 [Pitcher, C. S.; Andrew, P.; Barnsley, R.; Bertalot, L.; Encheva, A.; Kim, J.; Reichle, R.; Thomas, D. M.; Udintsev, V. S.; Vayakis, G.; Walker, C. I.; Walsh, M. J.] ITER Org, CS 90 046, F-13067 St Paul Les Durance, France. [Counsell, G. G.] F4E, Barcelona, Spain. [Feder, R. E.; Johnson, D. W.] PPPL, Princeton, NJ USA. [Hatae, T.; Kusama, Y.; Yatsuka, E.] JAEA, Naka, Ibaraki, Japan. [Lee, H. G.] NFRI, Taejon, South Korea. [Mukhin, E. E.] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia. [Tugarinov, S. N.] TRINITI, Troitsk, Moscow Oblast, Russia. [Vasu, P.] IPR, Gandhinagar, Gujarat, India. [Yang, Q. W.] SWIP, Chengdu, Sichuan, Peoples R China. [Zhao, J.] IPP, Hefei, Anhui, Peoples R China. [Zvonkov, A. V.] Kurchatov Inst, Moscow, Russia. RP Pitcher, CS (reprint author), ITER Org, CS 90 046, F-13067 St Paul Les Durance, France. EM spencer.pitcher@iter.org NR 11 TC 0 Z9 0 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1127 EP S1132 DI 10.1016/j.jnucmat.2011.01.111 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100256 ER PT J AU Raman, R Jarboe, TR Mueller, D Nelson, BA Bell, MG Kugel, HW LeBlanc, B Roquemore, L Soukhanovskii, V AF Raman, R. Jarboe, T. R. Mueller, D. Nelson, B. A. Bell, M. G. Kugel, H. W. LeBlanc, B. Roquemore, L. Soukhanovskii, V. CA NSTX Res Team TI Reduction of low-Z impurities during plasma start-up SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID SPHERICAL TORUS EXPERIMENT AB Reduction of low-Z impurities is essential during the plasma start-up in tokamaks. For plasma start-up using the method of Coaxial Helicity Injection (CHI) it has been found that conventional wall conditioning methods have been inadequate to generate a plasma with acceptably low levels of low-Z impurities. NSTX has now used a new combination of techniques to improve CHI start-up performance. These are the use of high-current discharge cleaning of the lower divertor surfaces, which function as the CHI electrodes, to remove loosely bound impurities, controlling the poloidal magnetic field to avoid plasma wall contact and the use of evaporated lithium coatings of the electrodes and other plasma-facing surfaces. Together, these techniques have enabled significant improvement in NSTX CHI performance leading to a saving of central solenoid flux and the first observation of electron temperatures during CHI exceeding the oxygen radiation barrier temperature. (C) 2010 Elsevier B.V. All rights reserved. C1 [Raman, R.; Jarboe, T. R.] Univ Washington, Seattle, WA 98195 USA. [Mueller, D.; Nelson, B. A.; Bell, M. G.; Kugel, H. W.; LeBlanc, B.; Roquemore, L.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Soukhanovskii, V.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Raman, R (reprint author), Univ Washington PPPL, POB 451, Princeton, NJ 08543 USA. EM raman@aa.washington.edu; hkugel@pppl.gov NR 7 TC 1 Z9 1 U1 2 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1017 EP S1020 DI 10.1016/j.jnucmat.2010.11.077 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100231 ER PT J AU Reinhold, CO Krstic, PS AF Reinhold, C. O. Krstic, P. S. TI Isotopic effects in the energy spectrum of molecules sputtered from carbon SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID CHEMICAL EROSION; BOMBARDMENT; GRAPHITE; YIELDS AB We investigate the translational and rovibrational energy spectra of sputtered molecules resulting from bombardment of hydrogen-supersaturated carbon by hydrogen isotopes H. D, and T at energies of 1-20 eV using classical molecular dynamics simulations. The chemical erosion yields and mass spectra of sputtered molecules are found to be quite sensitive to the isotope mass of the impinging projectiles. However, the mean translational and rovibrational energies of the sputtered molecules are found to be nearly mass independent especially near the sputtering thresholds. (C) 2010 Elsevier B.V. All rights reserved. C1 [Reinhold, C. O.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. RP Reinhold, CO (reprint author), Oak Ridge Natl Lab, Div Phys, Bldg 6010 MS 6272,POB 2008, Oak Ridge, TN 37831 USA. EM reinhold@ornl.gov; krsticp@ornl.gov OI Reinhold, Carlos/0000-0003-0100-4962 NR 16 TC 0 Z9 0 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S121 EP S124 DI 10.1016/j.jnucmat.2010.07.046 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100025 ER PT J AU Rudakov, DL Boedo, JA Pitts, RA Jackson, GL Lasnier, CJ Leonard, AW Moyer, RA Stangeby, PC Tynan, GR Watkins, JG AF Rudakov, D. L. Boedo, J. A. Pitts, R. A. Jackson, G. L. Lasnier, C. J. Leonard, A. W. Moyer, R. A. Stangeby, P. C. Tynan, G. R. Watkins, J. G. TI SOL width in limited versus diverted discharges in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID TRANSPORT AB An experiment aimed at benchmarking the ITER scrape-off layer (SOL) power width scaling in limited L-mode discharges has been conducted on DIII-D. Scans of the main scaling parameters were performed in an inner-wall-limited (IWL) magnetic configuration. Using the near-SOL density and temperature e-folding lengths, lambda(n), lambda(T), determined from reciprocating Langmuir probe measurements, SOL power flux density e-folding lengths, lambda(q), are derived. A few lower single null (LSN) discharges were also run for comparison. The results are generally in agreement with the ITER design assumptions, finding that lambda(n) and lambda(T) are correlated (lambda(T) similar to 1.2 lambda(n)) and both lambda(n) and lambda(T) are on average 2.1-2.5 times larger in IWL configurations than in LSN. In moderate elongation (kappa similar to 1.4) IWL discharges, lambda(q) is largest and agrees with the assumed ITER scaling within the estimated uncertainty (a factor of similar to 2). In IWL discharges lambda(q) measurements are consistent with the expectations of SOL power balance. (C) 2010 Elsevier B.V. All rights reserved. C1 [Rudakov, D. L.; Boedo, J. A.; Moyer, R. A.; Tynan, G. R.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Pitts, R. A.] ITER Org, F-13067 St Paul Les Durance, France. [Jackson, G. L.; Leonard, A. W.] Gen Atom Co, San Diego, CA 92186 USA. [Lasnier, C. J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Stangeby, P. C.] Univ Toronto, Inst Aerosp Studies, Toronto, ON M3H 5T6, Canada. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Rudakov, DL (reprint author), Univ Calif San Diego, 9500 Gilman Dr,Mail code 0417, La Jolla, CA 92093 USA. EM rudakov@fusion.gat.com NR 7 TC 12 Z9 12 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S387 EP S390 DI 10.1016/j.jnucmat.2010.10.036 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100086 ER PT J AU Schmitz, O Evans, TE Fenstermacher, ME McLean, A Boedo, J Brooks, NH Frerichs, H Jakubowski, M Laengner, R Lasnier, CL Loarte, A Moyer, RA Orlov, D Reimerdes, H Reiter, D Samm, U Stoschus, H Unterberg, EA Watkins, JG AF Schmitz, O. Evans, T. E. Fenstermacher, M. E. McLean, A. Boedo, J. Brooks, N. H. Frerichs, H. Jakubowski, M. Laengner, R. Lasnier, C. L. Loarte, A. Moyer, R. A. Orlov, D. Reimerdes, H. Reiter, D. Samm, U. Stoschus, H. Unterberg, E. A. Watkins, J. G. CA DIII-D Team TEXTOR Team TI The influence of three-dimensional stochastic magnetic boundaries on plasma edge transport and the resulting plasma wall interaction SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID CHEMICAL EROSION; DIII-D; DIVERTOR; PERTURBATIONS; STABILITY; TOKAMAK; PHYSICS; TEXTOR AB The three-dimensional (3D) features of plasma edge profiles and wall interaction patterns induced by edge resonant magnetic perturbation fields (RMP) are discussed comparing TEXTOR and DIII-D. We show that the scrape-off layer (SOL) profiles and decay lengths depend the edge safety factor, the RMP base mode as well as on the plasma rotation during RMP application indicating modification of SOL transport by the 3D perturbation fields. This is compatible with channelling of particle and heat efflux along open perturbed field lines in the very edge of the plasma boundary into a completely re-arranged, helically striated 3D divertor footprint. The distribution of the measured divertor heat and particle fluxes at DIII-D match the vacuum modelled magnetic footprint topology in L-mode while in H-mode the striation width exceeds the modelled footprint width by 15-30%. This 3D structure of the measured heat and particle fluxes results in a new situation for the material erosion properties and initial quantification of the net-erosion within the 3D footprint shows in L-mode a 50% decrease of the chemical erosion yield and evidence for a comparably small 15-20% increase in physical sputtering. Extrapolation of these findings to ITER by vacuum modelling of the magnetic footprint for the actual ELM control coils shows a similar vacuum magnetic footprint topology as found at DIII-D during RMP ELM suppression. However, the open field lines escape the CFC covered ITER divertor area potentially transferring net-erosion characteristics from the CFC domain onto the Tungsten including so far unconsidered heat and particle loads on this sensitive material. (C) 2011 Elsevier B.V. All rights reserved. C1 [Schmitz, O.; Frerichs, H.; Laengner, R.; Reiter, D.; Samm, U.; Stoschus, H.] Forschungszentrum Juelich, Assoc EURATOM FZJ, TEC, D-52428 Julich, Germany. [Evans, T. E.; Brooks, N. H.] Gen Atom Co, San Diego, CA 92186 USA. [Boedo, J.; Moyer, R. A.; Orlov, D.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Fenstermacher, M. E.; Lasnier, C. L.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Jakubowski, M.] Max Planck Inst Plasma Phys, Greifswald, Germany. [McLean, A.; Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Loarte, A.] ITER Org, CS 90046, F-13067 St Paul Les Durance, France. [Reimerdes, H.] Columbia Univ, New York, NY USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM USA. RP Schmitz, O (reprint author), Wilhelm Johnen Str, D-52425 Julich, Germany. EM o.schmitz@fz-juelich.de RI Orlov, Dmitriy/D-2406-2016; Unterberg, Ezekial/F-5240-2016 OI Orlov, Dmitriy/0000-0002-2230-457X; Unterberg, Ezekial/0000-0003-1353-8865 NR 43 TC 19 Z9 19 U1 2 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S886 EP S893 DI 10.1016/j.jnucmat.2011.01.136 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100203 ER PT J AU Scotti, F Soukhanovskii, VA Adams, ML Scott, HA Kugel, HW Kaita, R Roquemore, AL AF Scotti, Filippo Soukhanovskii, V. A. Adams, M. L. Scott, H. A. Kugel, H. W. Kaita, R. Roquemore, A. L. TI Observation and modeling of inner divertor re-attachment in discharges with lithium coatings in NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID REGIMES; PLASMAS AB In the National Spherical Torus Experiment (NSTX), modifications to the inner divertor plasma regimes are observed in high triangularity, H-mode, NBI heated discharges due to lithium coatings evaporated on the plasma facing components. In particular, the drop in the recombination rate, the reduced neutral pressure and the reduced electron density (inferred from Stark broadening measurements of high-n deuterium Balmer lines) suggested that the inner divertor, which is usually detached in discharges without lithium, re-attached. Experimental results are compared to simulations obtained with a 1D partially ionized plasma transport model integrated in the non-local thermodynamic equilibrium radiation transport code CRETIN to understand how the reduced recycling affects the divertor parameters in NSTX discharges with lithium coatings. (C) 2011 Elsevier B.V. All rights reserved. C1 [Scotti, Filippo; Kugel, H. W.; Kaita, R.; Roquemore, A. L.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Soukhanovskii, V. A.; Adams, M. L.; Scott, H. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Scotti, F (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM fscotti@pppl.gov NR 10 TC 6 Z9 6 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S405 EP S408 DI 10.1016/j.jnucmat.2010.12.041 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100090 ER PT J AU Shimada, M Hatano, Y Calderoni, P Oda, T Oya, Y Sokolov, M Zhang, K Cao, G Kolasinski, R Sharpe, JP AF Shimada, Masashi Hatano, Y. Calderoni, P. Oda, T. Oya, Y. Sokolov, M. Zhang, K. Cao, G. Kolasinski, R. Sharpe, J. P. TI First result of deuterium retention in neutron-irradiated tungsten exposed to high flux plasma in TPE SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DAMAGED TUNGSTEN; HYDROGEN; DISCHARGE; BEHAVIOR; RELEASE AB With the Japan-US joint research project Tritium, Irradiations, and Thermofluids for America and Nippon (TITAN), an initial set of tungsten samples (99.99% purity, A.L.M.T. Co.) were irradiated by high flux neutrons at 323 K to 0.025 dpa in High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL). Subsequently, one of the neutron-irradiated tungsten samples was exposed to a high-flux deuterium plasma (ion flux: 5 x 10(21) m(-2) s(-1), ion fluence: 4 x 10(25) m(-2)) in the Tritium Plasma Experiment (TPE) at Idaho National Laboratory (INL). The deuterium retention in the neutron-irradiated tungsten was 40% higher in comparison to the unirradiated tungsten. The observed broad desorption spectrum from neutron-irradiated tungsten and associated TMAP modeling of the deuterium release suggest that trapping occurs in the bulk material at more than three different energy sites. (C) 2010 Elsevier B.V. All rights reserved. C1 [Shimada, Masashi; Calderoni, P.; Sharpe, J. P.] Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID 83415 USA. [Hatano, Y.; Zhang, K.] Toyama Univ, Hydrogen Isotope Res Ctr, Toyama 9308555, Japan. [Oda, T.] Univ Tokyo, Dept Nucl Engn & Management, Tokyo 1138656, Japan. [Oya, Y.] Shizuoka Univ, Fac Sci, Radiosci Res Lab, Shizuoka 4228529, Japan. [Sokolov, M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Cao, G.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA. [Kolasinski, R.] Sandia Natl Labs, Hydrogen & Met Sci Dept, Livermore, CA 94551 USA. RP Shimada, M (reprint author), Idaho Natl Lab, Fus Safety Program, 2525 N Fremont Ave, Idaho Falls, ID 83415 USA. EM Masashi.Shimada@inl.gov OI Shimada, Masashi/0000-0002-1592-843X; Calderoni, Pattrick/0000-0002-2316-6404 NR 21 TC 31 Z9 31 U1 5 U2 21 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S667 EP S671 DI 10.1016/j.jnucmat.2010.11.050 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100151 ER PT J AU Skinner, CH Allain, JP Blanchard, W Kugel, HW Maingi, R Roquemore, L Soukhanovskii, V Taylor, CN AF Skinner, C. H. Allain, J. P. Blanchard, W. Kugel, H. W. Maingi, R. Roquemore, L. Soukhanovskii, V. Taylor, C. N. TI Deuterium retention in NSTX with lithium conditioning SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID HYDROGEN RETENTION; DIII-D; GRAPHITE; TOKAMAK; LIMITERS; DEVICES; SYSTEM AB High (approximate to 90%) deuterium retention was observed in NSTX gas balance measurements both with- and without lithiumization of the carbon plasma-facing components. The gas retained in ohmic discharges was measured by comparing the vessel pressure rise after a discharge to that of a gas-only pulse with the pumping valves closed. For neutral beam heated discharges the gas input and gas pumped by the NB cryopanels were tracked. The discharges were followed by outgassing of deuterium that reduced the retention. The relationship between retention and surface chemistry was explored with a new plasma-material interface probe connected to an in vacuo surface science station that exposed four material samples to the plasma. XPS and TDS analysis demonstrated that binding of D atoms in graphite is fundamentally changed by lithium - in particular atoms are weakly bonded in regions near lithium atoms bound to either oxygen or the carbon matrix. This is in contrast to the strong ionic bonding that occurs between D and pure Li. (C) 2010 Elsevier B.V. All rights reserved. C1 [Skinner, C. H.; Blanchard, W.; Kugel, H. W.; Roquemore, L.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Allain, J. P.; Taylor, C. N.] Purdue Univ, W Lafayette, IN 47907 USA. [Maingi, R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Soukhanovskii, V.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Skinner, CH (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM cskinner@pppl.gov OI Allain, Jean Paul/0000-0003-1348-262X NR 25 TC 11 Z9 11 U1 3 U2 13 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S773 EP S776 DI 10.1016/j.jnucmat.2010.08.063 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100176 ER PT J AU Smirnov, RD Krasheninnikov, SI Pigarov, AY Roquemore, AL Mansfield, DK Nichols, J AF Smirnov, R. D. Krasheninnikov, S. I. Pigarov, A. Yu Roquemore, A. L. Mansfield, D. K. Nichols, J. TI Modeling of dust impact on tokamak edge plasmas SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID FUSION DEVICES; TRANSPORT; DYNAMICS; SAFETY AB The first self-consistent modeling of impact of dust on edge plasmas in tokamaks with the coupled dust-plasma transport code DUSTT/UEDGE is presented. The code validation for the modeling of lithium dust with radius similar to 20 mu m in the plasmas is performed using 3D reconstructed dust trajectories measured during lithium dust injection experiments on NSTX. The modeling demonstrates that the dust injection with rates of several of tens mg/s can have profound effect on the edge plasma profiles, transport, and stability. The differences between the dust injection and the injection of equivalent amounts of gaseous impurities in the plasmas are discussed. (C) 2011 Elsevier B.V. All rights reserved. C1 [Smirnov, R. D.; Krasheninnikov, S. I.; Pigarov, A. Yu] Univ Calif San Diego, La Jolla, CA 92093 USA. [Roquemore, A. L.; Mansfield, D. K.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Nichols, J.] Cornell Univ, Ithaca, NY 14853 USA. RP Smirnov, RD (reprint author), 9500 Gilman Dr,MC 0411, La Jolla, CA 92093 USA. EM rsmirnov@ucsd.edu RI Smirnov, Roman/B-9916-2011 OI Smirnov, Roman/0000-0002-9114-5330 NR 28 TC 13 Z9 13 U1 1 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1067 EP S1072 DI 10.1016/j.jnucmat.2011.01.004 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100242 ER PT J AU Soukhanovskii, VA Ahn, JW Bell, RE Gates, DA Gerhardt, S Kaita, R Kolemen, E Kugel, HW LeBlanc, BP Maingi, R Maqueda, R McLean, A Menard, JE Mueller, DM Paul, SF Raman, R Roquemore, AL Ryutov, DD Scott, HA AF Soukhanovskii, V. A. Ahn, J-W Bell, R. E. Gates, D. A. Gerhardt, S. Kaita, R. Kolemen, E. Kugel, H. W. LeBlanc, B. P. Maingi, R. Maqueda, R. McLean, A. Menard, J. E. Mueller, D. M. Paul, S. F. Raman, R. Roquemore, A. L. Ryutov, D. D. Scott, H. A. TI "Snowflake" divertor configuration in NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID TIME EQUILIBRIUM RECONSTRUCTION; SPHERICAL TORUS EXPERIMENT; TOKAMAK; PLASMAS; POWER AB Steady-state handling of divertor heat flux is a critical issue for present and future conventional and spherical tokamaks with compact high power density divertors. A novel "snowflake" divertor (SFD) configuration that takes advantage of magnetic properties of a second-order poloidal null has been predicted to have a larger plasma-wetted area and a larger divertor volume, in comparison with a standard first-order poloidal X-point divertor configuration. The SFD was obtained in 0.8 MA, 4-6 MW NBI-heated H-mode discharges in NSTX using two divertor magnetic coils. The SFD led to a partial detachment of the outer strike point even in low-collisionality scrape-off layer plasma obtained with lithium coatings in NSTX. Significant divertor peak heat flux reduction and impurity screening have been achieved simultaneously with good core confinement and MHD properties. (C) 2010 Elsevier B.V. All rights reserved. C1 [Soukhanovskii, V. A.; Bell, R. E.; Gates, D. A.; Gerhardt, S.; Kaita, R.; Kolemen, E.; Kugel, H. W.; LeBlanc, B. P.; Menard, J. E.; Mueller, D. M.; Paul, S. F.; Roquemore, A. L.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Soukhanovskii, V. A.; Ryutov, D. D.; Scott, H. A.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Ahn, J-W; Maingi, R.; McLean, A.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Maqueda, R.] Nova Photon Inc, Princeton, NJ USA. [Raman, R.] Univ Washington, Seattle, WA 98195 USA. RP Soukhanovskii, VA (reprint author), Princeton Plasma Phys Lab, MS34,POB 451, Princeton, NJ 08543 USA. EM vlad@llnl.gov OI Menard, Jonathan/0000-0003-1292-3286 NR 23 TC 15 Z9 15 U1 1 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S365 EP S368 DI 10.1016/j.jnucmat.2010.07.047 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100081 ER PT J AU Stotler, DP Skinner, CH Blanchard, WR Krstic, PS Kugel, HW Schneider, H Zakharov, LE AF Stotler, D. P. Skinner, C. H. Blanchard, W. R. Krstic, P. S. Kugel, H. W. Schneider, H. Zakharov, L. E. TI Simulations of diffusive lithium evaporation onto the NSTX vessel walls SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID DEPOSITION AB A model for simulating the diffusive evaporation of lithium into a helium filled NSTX vacuum vessel is described and validated against an initial set of deposition experiments. The DEGAS 2 based model consists of a three-dimensional representation of the vacuum vessel, the elastic scattering process, and a kinetic description of the evaporated atoms. Additional assumptions are required to account for deuterium out-gassing during the validation experiments. The model agrees with the data over a range of pressures to within the estimated uncertainties. Suggestions are made for more discriminating experiments that will lead to an improved model. (C) 2010 Published by Elsevier B.V. C1 [Stotler, D. P.; Skinner, C. H.; Blanchard, W. R.; Kugel, H. W.; Schneider, H.; Zakharov, L. E.] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA. [Krstic, P. S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Stotler, DP (reprint author), Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM dstotler@pppl.gov RI Stotler, Daren/J-9494-2015 OI Stotler, Daren/0000-0001-5521-8718 NR 12 TC 1 Z9 1 U1 2 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1058 EP S1061 DI 10.1016/j.jnucmat.2010.11.070 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100240 ER PT J AU Strachan, JD Corrigan, G Harting, D Lauro-Taroni, L Maggi, CF Matthews, GF O'Mullane, M Reiter, D Seebacher, J Spence, J Summers, H Wiesen, S AF Strachan, J. D. Corrigan, G. Harting, D. Lauro-Taroni, L. Maggi, C. F. Matthews, G. F. O'Mullane, M. Reiter, D. Seebacher, J. Spence, J. Summers, H. Wiesen, S. CA JET-EFDA Contributors TI EDGE2D comparisons of JET tungsten and carbon screening SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom AB This paper studies the effect of bundling groups of contiguous carbon and tungsten ionization stages on the calculated impurity screening. EDGE2D/EIRENE was used to calculate the charge state distribution in the SOL and the edge of the plasma core, which resulted from the puffing of either atomic carbon or tungsten at the JET outer mid-plane. The input parameters were constant for a number of code calculations where the only parameter changed was the number and/or charge states bundled in either carbon or tungsten. In this manner, the effect of bundling on the carbon or tungsten screening or fuelling efficiency was determined. For carbon and tungsten there was only a weak dependence upon the actual bundling scheme used. Published by Elsevier B.V. C1 [Strachan, J. D.; Corrigan, G.; Harting, D.; Lauro-Taroni, L.; Maggi, C. F.; Matthews, G. F.; O'Mullane, M.; Reiter, D.; Seebacher, J.; Spence, J.; Summers, H.; Wiesen, S.] JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Strachan, J. D.] Princeton Univ, PPPL, Princeton, NJ 08543 USA. [Corrigan, G.; Harting, D.; Lauro-Taroni, L.; Matthews, G. F.; O'Mullane, M.; Spence, J.; Summers, H.] EURATOM CCFE Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. [Maggi, C. F.] EURATOM, MPI Plasmaphys, D-85748 Garching, Germany. [Reiter, D.; Wiesen, S.] Assoc EURATOM FZ Julich, Inst Energieforsch Plasmaphys, D-52425 Julich, Germany. [Seebacher, J.] Univ Innsbruck, Assoc EURATOM OAW, Inst Theoret Phys, A-6020 Innsbruck, Austria. RP Strachan, JD (reprint author), Princeton Univ, PPPL, Princeton, NJ 08541 USA. EM jstrachan@pppl.gov NR 9 TC 5 Z9 5 U1 3 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S501 EP S504 DI 10.1016/j.jnucmat.2010.08.028 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100113 ER PT J AU Taylor, CN Allain, JP Heim, B Krstic, PS Skinner, CH Kugel, HW AF Taylor, C. N. Allain, J. P. Heim, B. Krstic, P. S. Skinner, C. H. Kugel, H. W. TI Surface chemistry and physics of deuterium retention in lithiated graphite SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID LITHIUM AB Lithium wall conditioning in TFTR, CDX-U, T-11M, and NSTX is found to yield enhanced plasma performance manifest, in part, through improved deuterium particle control. X-ray photoelectron spectroscopy (XPS) experiments examine the affect of D irradiation on lithiated graphite and show that the surface chemistry of lithiated graphite after D ion bombardment (500 eV/amu) is fundamentally different from that of non-Li conditioned graphite. Instead of simple LiD bonding seen in pure liquid Li, graphite introduces additional complexities. XPS spectra show that Li-O-D (533.0 +/- 0.6 eV) and Li-C-D (291.4 +/- 0.6 eV) bonds, for a nominal Li dose of 2 mu m, become "saturated" with D at fluences between 3.8 and 5.2 x 10(17) cm(-2). Atomistic modeling indicate that Li-O-D-C interactions may be a result of multibody effects as opposed to molecular bonding. (C) 2010 Elsevier B.V. All rights reserved. C1 [Taylor, C. N.; Allain, J. P.; Heim, B.] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA. [Krstic, P. S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Skinner, C. H.; Kugel, H. W.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Taylor, CN (reprint author), Purdue Univ, Birck Nanotechnol Ctr, Discovery Pk, W Lafayette, IN 47907 USA. EM ctaylor@purdue.edu OI Allain, Jean Paul/0000-0003-1348-262X NR 9 TC 12 Z9 12 U1 1 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S777 EP S780 DI 10.1016/j.jnucmat.2010.09.049 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100177 ER PT J AU Umstadter, KR Rudakov, DL Wampler, W Watkins, JG Wong, CPC AF Umstadter, K. R. Rudakov, D. L. Wampler, W. Watkins, J. G. Wong, C. P. C. TI Effect of ELMs on deuterium-loaded-tungsten plasma facing components SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID RETENTION; DIMES AB Prior heat pulse testing of plasma facing components (PFCs) has been completed in vacuum environments without the presence of background plasma. Edge localized modes (ELMs) will not be this kind of isolated event and one should know the effect of a plasma background during these transients. Heat-pulse experiments have been conducted in the PISCES-A device utilizing laser heating in a divertor-like plasma background. Initial results indicate that the erosion of PFCs is enhanced as compared to heat pulse or plasma only tests. To determine if the enhanced erosion effect is a phenomena only witnessed in the laboratory PISCES device, tungsten and graphite samples were exposed to plasmas in the lower divertor of the DIII-D tokamak using the Divertor Material Evaluation System (DiMES). Mass loss analysis indicates that materials that contain significant deuterium prior to experiencing a transient heating event will erode faster than those that have no or little retained deuterium. (C) 2011 Elsevier B.V. All rights reserved. C1 [Umstadter, K. R.; Rudakov, D. L.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Wampler, W.; Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Wong, C. P. C.] Gen Atom Co, San Diego, CA 92186 USA. RP Umstadter, KR (reprint author), Univ Calif San Diego, MC 0417,9500 Gilman Dr, La Jolla, CA 92093 USA. EM karl@ucsd.edu NR 8 TC 4 Z9 4 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S83 EP S86 DI 10.1016/j.jnucmat.2010.11.104 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100016 ER PT J AU Unterberg, EA Allen, SL Brooks, NH Evans, TE Leonard, AW McLean, A Watkins, JG Whyte, DG AF Unterberg, E. A. Allen, S. L. Brooks, N. H. Evans, T. E. Leonard, A. W. McLean, A. Watkins, J. G. Whyte, D. G. TI Global particle balance measurements in DIII-D H-mode discharges SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID WALL SATURATION; TOKAMAKS; ITER; RETENTION; ISSUES; JT-60U AB Experiments are performed on the DIII-D tokamak to determine the retention rate in an all graphite first-wall tokamak. A time-dependent particle balance analysis shows a majority of the fuel retention occurs during the initial Ohmic and L-mode phase of discharges, with peak fuel retention rates typically similar to 2 x 10(21) D/s. The retention rate can be zero within the experimental uncertainties (<3 x 10(20) D/s) during the later stationary phase of the discharge. In general, the retention inventory can decrease in the stationary phase by similar to 20-30% from the initial start-up phase of the discharge. Particle inventories determined as a function of time in the discharge, using a "dynamic" particle balance analysis, agree with more accurate particle inventories directly measured after the discharge, termed "static" particle balance. Similarly, low stationary retention rates are found in discharges with heating from neutral-beams, which injects particles, and from electron cyclotron waves, which does not inject particles. Detailed analysis of the static and dynamic balance methods provide an estimate of the DIII-D global co-deposition rate of <= 0.6-1.2 x 10(20) D/s. Dynamic particle balance is also performed on discharges with resonant magnetic perturbation ELM suppression and shows no additional retention during the ELM-suppressed phase of the discharge. (C) 2011 Elsevier B.V. All rights reserved. C1 [Unterberg, E. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Allen, S. L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Brooks, N. H.; Evans, T. E.; Leonard, A. W.] Gen Atom, San Diego, CA 92186 USA. [Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Whyte, D. G.] MIT, Cambridge, MA 02139 USA. RP Unterberg, EA (reprint author), Co Gen Atom, POB 85608, San Diego, CA 92186 USA. EM unterberge@fusion.gat.com RI Unterberg, Ezekial/F-5240-2016 OI Unterberg, Ezekial/0000-0003-1353-8865 NR 33 TC 3 Z9 3 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S740 EP S747 DI 10.1016/j.jnucmat.2011.02.028 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100169 ER PT J AU Wampler, WR Rudakov, DL Watkins, JG Lasnier, CJ AF Wampler, W. R. Rudakov, D. L. Watkins, J. G. Lasnier, C. J. TI The influence of displacement damage on deuterium retention in tungsten exposed to divertor plasma in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID EROSION AB Experiments were conducted to determine the influence of displacement damage on retention of deuterium in tungsten plasma-facing components in a tokamak. Tungsten samples, previously damaged by ion irradiation, were exposed to the outer strike point of attached H-mode plasmas in DIII-D. Nuclear reaction analysis (NRA) was used to measure the depth profile of deuterium retained in the tungsten. Displacement damage increased the concentration of retained deuterium to the maximum depth (about 2.5 mu m) of the damage, to concentrations up to 0.003 D/W, compared to D/W < 10(-5) in undamaged W. Tungsten coverage on adjacent carbon surfaces of the probe was mapped by Rutherford backscattering, giving the average tungsten erosion rate and spatial variation of redeposition. (C) 2010 Elsevier B.V. All rights reserved. C1 [Wampler, W. R.; Watkins, J. G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Rudakov, D. L.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Lasnier, C. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Wampler, WR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM wrwampl@sandia.gov NR 9 TC 8 Z9 8 U1 1 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S653 EP S656 DI 10.1016/j.jnucmat.2010.11.043 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100148 ER PT J AU Xu, W Surla, V Jaworski, MA Lee, M Mui, T Neumann, MJ Ruzic, DN AF Xu, W. Surla, V. Jaworski, M. A. Lee, M. Mui, T. Neumann, M. J. Ruzic, D. N. TI Investigation of the heat transfer in TEMHD driven swirling lithium flow SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom AB Thermoelectric magnetohydrodynamic (TEMHD) driven flow was recently observed directly in SLiDE experiment when the lithium is heated by a non-uniform electron beam and affected by the magnetic field in the same direction. This type of flow is believed to have the ability transferring the heat from the hot spot to the cool part efficiently in a convection way. Detailed temperature distribution and heat transfer in this flow is investigated with the help of infrared camera system. A 3D convection heat transfer model is applied to explain the experiment results. (C) 2011 Elsevier B.V. All rights reserved. C1 [Xu, W.; Surla, V.; Lee, M.; Mui, T.; Neumann, M. J.; Ruzic, D. N.] Univ Illinois, Dept Nucl Plasma & Radiol Engn, Ctr Plasma Mat Interact, Urbana, IL 61801 USA. [Jaworski, M. A.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Xu, W (reprint author), Univ Illinois, Dept Nucl Plasma & Radiol Engn, Ctr Plasma Mat Interact, 104 S Wright St, Urbana, IL 61801 USA. EM wenyuxu1@illinois.edu NR 5 TC 0 Z9 0 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S981 EP S984 DI 10.1016/j.jnucmat.2010.12.022 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100222 ER PT J AU Zuo, GZ Hu, JS Li, JG Luo, NC Zakharov, LE Zhang, L Ti, A AF Zuo, G. Z. Hu, J. S. Li, J. G. Luo, N. C. Zakharov, L. E. Zhang, L. Ti, A. TI First results of lithium experiments on EAST and HT-7 SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID SUPERCONDUCTING TOKAMAK; CDX-U; LIMITER; EDGE; PLASMA; SYSTEM; FTU; HE AB Lithium as first wall materials was successively performed on EAST and HT-7 superconducting tokamaks. In the last 2 years, lithium coating were carried out by means of ICRF, DC-GDC and HF-GDC on EAST and HT-7, and liquid lithium limiters with free lithium surface and CPS configuration were successively applied on HT-7. Both techniques of lithium coating and liquid lithium limiter were useful for the improvement of plasma performances. This paper will give the first results of lithium experiments on EAST and HT-7. (C) 2010 Elsevier B.V. All rights reserved. C1 [Zuo, G. Z.; Hu, J. S.; Li, J. G.; Luo, N. C.; Zhang, L.; Ti, A.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China. [Zakharov, L. E.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Hu, JS (reprint author), POB 1126, Hefei 230031, Anhui, Peoples R China. EM zuoguizh@ipp.ac.cn; hujs@ipp.ac.cn NR 14 TC 21 Z9 23 U1 4 U2 27 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S1062 EP S1066 DI 10.1016/j.jnucmat.2010.08.052 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100241 ER PT J AU Zweben, SJ Terry, JL LaBombard, B Agostini, M Greenwald, M Grulke, O Hughes, JW D'Ippolito, DA Krasheninnikov, SI Myra, JR Russell, DA Stotler, DP Umansky, M AF Zweben, S. J. Terry, J. L. LaBombard, B. Agostini, M. Greenwald, M. Grulke, O. Hughes, J. W. D'Ippolito, D. A. Krasheninnikov, S. I. Myra, J. R. Russell, D. A. Stotler, D. P. Umansky, M. TI Estimate of convective radial transport due to SOL turbulence as measured by GPI in Alcator C-Mod SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 19th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI) CY MAY 24-28, 2010 CL Univ Calif, Gen Atom, San Diego, CA SP Lawrence Livermore Natl Lab HO Univ Calif, Gen Atom ID SCRAPE-OFF-LAYER; EDGE TURBULENCE; PLASMA; SIMULATION; DRIVEN AB The convective radial transport effects of SOL turbulence have been estimated using recent turbulence data from the gas puff imaging (GPI) camera diagnostic on Alcator C-Mod. The average radial turbulence speed within the region 1-2 cm outside the separatrix near the outer was calculated by a 2-0 cross-correlation technique to be V-t similar to 0.2-0.3 km/s. Assuming this to be the local convective plasma velocity, the density SOL width lambda(n) was evaluated using a simple convective model to be lambda(n) similar to 4-7 cm, which is similar to 2-3 times higher than that measured using a Langmuir probe. This convective velocity was also similar to 2-3 times lower than the velocities estimated from analytic blob models, but showed a similar scaling with plasma current at constant q(95). The measured blob speeds were lower than both the convective speeds and the analytic blob model speeds. (C) 2010 Elsevier B.V. All rights reserved. C1 [Zweben, S. J.; Stotler, D. P.] PPPL, Princeton, NJ 08540 USA. [Terry, J. L.; LaBombard, B.; Greenwald, M.; Hughes, J. W.] MIT, PSFC, Cambridge, MA 02139 USA. [Agostini, M.] Consorzio RFX, Padua, Italy. [Grulke, O.] IPP, Garching, Germany. [D'Ippolito, D. A.; Myra, J. R.; Russell, D. A.] Lodestar Res, Boulder, CO 80301 USA. [Krasheninnikov, S. I.] UCSD, San Diego, CA 92093 USA. [Umansky, M.] LLNL, Livermore, CA 94550 USA. RP Zweben, SJ (reprint author), PPPL, POB 451, Princeton, NJ 08540 USA. EM szweben@pppl.gov RI Stotler, Daren/J-9494-2015; OI Stotler, Daren/0000-0001-5521-8718; AGOSTINI, MATTEO/0000-0002-3823-1002; Greenwald, Martin/0000-0002-4438-729X NR 16 TC 4 Z9 4 U1 2 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD AUG 1 PY 2011 VL 415 IS 1 SU S BP S463 EP S466 DI 10.1016/j.jnucmat.2010.08.018 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 862XT UT WOS:000298128100104 ER PT J AU Kalyanapu, AJ Shankar, S Pardyjak, ER Judi, DR Burian, SJ AF Kalyanapu, Alfred J. Shankar, Siddharth Pardyjak, Eric R. Judi, David R. Burian, Steven J. TI Assessment of GPU computational enhancement to a 2D flood model SO ENVIRONMENTAL MODELLING & SOFTWARE LA English DT Article DE 2D flood model; Flood simulation; GPU programming; CUDA ID INUNDATION MODEL; SIMULATION; UNCERTAINTY; EXPERIENCES; MANAGEMENT; SYSTEMS; FLOWS AB This paper presents a study of the computational enhancement of a Graphics Processing Unit (GPU) enabled 2D flood model. The objectives are to demonstrate the significant speedup of a new GPU-enabled full dynamic wave flood model and to present the effect of model spatial resolution on its speedup. A 2D dynamic flood model based on the shallow water equations is parallelized using the GPU approach developed in NVIDIA's Compute Unified Development Architecture (CUDA). The model is validated using observations of the Taum Sauk pump storage hydroelectric power plant dam break flood event. For the Taum Sauk flood simulation, the GPU model speedup compared to an identical CPU model implementation is 80x-88x for computational domains ranging from 65.5 k to 1.05 M cells. Thirty minutes of event time were simulated by the GPU model in 2 min, 15 times faster than real time. An important finding of the analysis of model domain size is the GPU model is not constrained by model domain extent as is the CPU model. Finally, the GPU implementation is shown to be scalable compared with the CPU version, an important characteristic for large domain flood modeling studies. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Kalyanapu, Alfred J.; Burian, Steven J.] Univ Utah, Dept Civil & Environm Engn, Salt Lake City, UT 84112 USA. [Shankar, Siddharth] Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA. [Pardyjak, Eric R.] Univ Utah, Dept Mech Engn, Salt Lake City, UT 84112 USA. [Judi, David R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Kalyanapu, AJ (reprint author), Univ Utah, Dept Civil & Environm Engn, 122 S Cent Campus Dr,Suite 104, Salt Lake City, UT 84112 USA. EM Alfred.Kalyanapu@utah.edu OI Burian, Steven/0000-0003-0523-4968 NR 53 TC 45 Z9 47 U1 1 U2 21 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 1364-8152 J9 ENVIRON MODELL SOFTW JI Environ. Modell. Softw. PD AUG PY 2011 VL 26 IS 8 BP 1009 EP 1016 DI 10.1016/j.envsoft.2011.02.014 PG 8 WC Computer Science, Interdisciplinary Applications; Engineering, Environmental; Environmental Sciences SC Computer Science; Engineering; Environmental Sciences & Ecology GA 765JM UT WOS:000290701600003 ER PT J AU Banks, JW Sjogreen, B AF Banks, J. W. Sjoegreen, B. TI A Normal Mode Stability Analysis of Numerical Interface Conditions for Fluid/Structure Interaction SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS LA English DT Article DE Finite difference method; normal mode analysis; fluid/structure interaction; compressible fluid; interface condition AB In multi physics computations where a compressible fluid is coupled with a linearly elastic solid, it is standard to enforce continuity of the normal velocities and of the normal stresses at the interface between the fluid and the solid. In a numerical scheme, there are many ways that velocity- and stress-continuity can be enforced in the discrete approximation. This paper performs a normal mode stability analysis of the linearized problem to investigate the stability of different numerical interface conditions for a model problem approximated by upwind type finite difference schemes. The analysis shows that depending on the ratio of densities between the solid and the fluid, some numerical interface conditions are stable up to the maximal CFL-limit, while other numerical interface conditions suffer from a severe reduction of the stable CFL-limit. The paper also presents a new interface condition, obtained as a simplified characteristic boundary condition, that is proved to not suffer from any reduction of the stable CFL-limit. Numerical experiments in one space dimension show that the new interface condition is stable also for computations with the non-linear Euler equations of compressible fluid flow coupled with a linearly elastic solid. C1 [Banks, J. W.; Sjoegreen, B.] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. RP Banks, JW (reprint author), Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, POB 5508, Livermore, CA 94551 USA. EM banks20@llnl.gov; sjogreen2@llnl.gov RI Banks, Jeffrey/A-9718-2012 FU Lawrence Livermore National Laboratory under the U.S. Department of Energy [DE-AC52-07NA27344] FX This study has been supported by Lawrence Livermore National Laboratory under the auspices of the U.S. Department of Energy through contract number DE-AC52-07NA27344. NR 7 TC 6 Z9 6 U1 1 U2 3 PU GLOBAL SCIENCE PRESS PI WANCHAI PA ROOM 3208, CENTRAL PLAZA, 18 HARBOUR RD, WANCHAI, HONG KONG 00000, PEOPLES R CHINA SN 1815-2406 J9 COMMUN COMPUT PHYS JI Commun. Comput. Phys. PD AUG PY 2011 VL 10 IS 2 BP 279 EP 304 DI 10.4208/cicp.060210.300910a PG 26 WC Physics, Mathematical SC Physics GA 871UQ UT WOS:000298763600002 ER PT J AU Zhang, H Ju, LL Gunzburger, M Ringler, T Price, S AF Zhang, Huai Ju, Lili Gunzburger, Max Ringler, Todd Price, Stephen TI Coupled Models and Parallel Simulations for Three-Dimensional Full-Stokes Ice Sheet Modeling SO NUMERICAL MATHEMATICS-THEORY METHODS AND APPLICATIONS LA English DT Article DE Ice sheet modeling; nonlinear Stokes equation; finite element method; parallel implementation; centroial Voronoi Delaunay meshes ID CENTROIDAL VORONOI TESSELLATIONS; PRECONDITIONED ITERATIVE METHODS; DOMAIN DECOMPOSITION; MULTIGRID METHODS; MASS-BALANCE; HIGHER-ORDER; GREENLAND; CLIMATE; MESHES; SOLVER AB A three-dimensional full-Stokes computational model is considered for determining the dynamics, temperature, and thickness of ice sheets. The governing thermo-mechanical equations consist of the three-dimensional full-Stokes system with nonlinear rheology for the momentum, an advective-diffusion energy equation for temperature evolution, and a mass conservation equation for ice-thickness changes. Here, we discuss the variable resolution meshes, the finite element discretizations, and the parallel algorithms employed by the model components. The solvers are integrated through a well-designed coupler for the exchange of parametric data between components. The discretization utilizes high-quality variable-resolution centroidal Voronoi Delaunay triangulation meshing and existing parallel solvers. We demonstrate the gridding technology, discretization schemes, and the efficiency and scalability of the parallel solvers through computational experiments using both simplified geometries arising from benchmark test problems and a realistic Greenland ice sheet geometry. C1 [Zhang, Huai; Ju, Lili] Univ S Carolina, Dept Math, Columbia, SC 29208 USA. [Gunzburger, Max] Florida State Univ, Dept Comp Sci, Tallahassee, FL 32306 USA. [Ringler, Todd; Price, Stephen] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Zhang, Huai] Chinese Acad Sci, Lab Computat Geodynam, Grad Univ, Beijing 100049, Peoples R China. RP Ju, LL (reprint author), Univ S Carolina, Dept Math, Columbia, SC 29208 USA. EM hzhang@gucas.ac.cn; ju@math.sc.edu; mgunzburger@fsu.edu; ringler@lanl.gov; sprice@lanl.gov RI Price, Stephen /E-1568-2013 OI Price, Stephen /0000-0001-6878-2553 FU US DOE Office of Science [DE-FG02-07ER64431, DE-FG02-07ER64432, DOE 07SCPF152]; US National Science Foundation [DMS-0913491] FX This work was partially supported by the US DOE Office of Science's Climate Change Prediction Program through DE-FG02-07ER64431, DE-FG02-07ER64432 and DOE 07SCPF152, and by the US National Science Foundation under grant number DMS-0913491. NR 46 TC 9 Z9 9 U1 0 U2 4 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA EDINBURGH BLDG, SHAFTESBURY RD, CB2 8RU CAMBRIDGE, ENGLAND SN 1004-8979 EI 2079-7338 J9 NUMER MATH-THEORY ME JI Numer. Math.-Theory Methods Appl. PD AUG PY 2011 VL 4 IS 3 BP 396 EP 418 DI 10.4208/nmtma.2011.m1031 PG 23 WC Mathematics, Applied; Mathematics SC Mathematics GA 871VP UT WOS:000298766100005 ER PT J AU Given, MJ Timoshkin, IV Wilson, MP MacGregor, SJ Lehr, JM AF Given, Martin J. Timoshkin, Igor V. Wilson, Mark P. MacGregor, Scott J. Lehr, Jane M. TI A Novel Design for a Multistage Corona Stabilized Closing Switch SO IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION LA English DT Article DE Corona; gas discharges; pulse power system switches AB The possibility of controlling the voltage distribution across the gaps of a closing switch based on a cascade of corona stabilized electrodes has been examined. When operating in a corona stabilized mode the corona current flowing in each gap must be equal. By altering the corona characteristics of the gaps, through changing electrode separation and the area of corona emission, it should therefore be possible to control the voltage distribution across the elements of the cascade. A simple theoretical model of the behavior of corona emission for an electrode with a protruding cylindrical corona generation element has been developed. Experimental tests have confirmed the broad validity of the model. The experimental data for individual electrode geometries has been used to predict the expected self break behavior of a two gap cascade and the predictions are compared with experimental data. The voltage distribution across the cascade has also been measured and compared with the values predicted from the model. C1 [Given, Martin J.; Timoshkin, Igor V.; Wilson, Mark P.; MacGregor, Scott J.] Univ Strathclyde, Dept Elect & Elect Engn, Glasgow G1 1XW, Lanark, Scotland. [Lehr, Jane M.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Given, MJ (reprint author), Univ Strathclyde, Dept Elect & Elect Engn, 204 George St, Glasgow G1 1XW, Lanark, Scotland. OI Given, Martin/0000-0002-6354-2486; Wilson, Mark/0000-0003-3088-8541 NR 5 TC 4 Z9 4 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1070-9878 J9 IEEE T DIELECT EL IN JI IEEE Trns. Dielectr. Electr. Insul. PD AUG PY 2011 VL 18 IS 4 BP 983 EP 989 PG 7 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 807SB UT WOS:000293918900008 ER PT J AU Wilson, MP Timoshkin, IV Given, MJ MacGregor, SJ Sinclair, MA Thomas, KJ Lehr, JM AF Wilson, Mark P. Timoshkin, Igor V. Given, Martin J. MacGregor, Scott J. Sinclair, Mark A. Thomas, Ken J. Lehr, Jane M. TI Effect of Applied Field and Rate of Voltage Rise On Surface Breakdown of Oil-immersed Polymers SO IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION LA English DT Article DE Dielectric breakdown; flashover; oil insulation; plastic insulation; pulse power systems ID STREAMER PROPAGATION; DISCHARGE AB In sub-systems of high-voltage, pulsed-power machines, the introduction of a solid into bulk liquid insulation located between two conductors is often necessary to provide mechanical support. Breakdown events on or around the surface of the solid can result in permanent damage to the insulation system. Described in the present paper are experimental results pertaining to surface breakdown of five different solid dielectrics held between plane-parallel electrodes immersed in mineral oil. The effect of varying level of peak applied field from 200 kV/cm (dV/dt 70 kV/mu s) to 1 MV/cm (dV/dt 350 kV/mu s) is investigated, and the breakdown voltages and times to breakdown are compared to those for an open oil gap. The time to breakdown is shown to be reduced by the introduction of a solid spacer into the gap. Rexolite and Torlon samples suffered significant mechanical damage, and consistently showed lower breakdown voltage than the other materials - average streamer propagation velocity up to 125 km/s was implied by the short times to breakdown. Although ultra-high molecular weight polyethylene yielded the longest times to breakdown of the five types of liquid-solid gap, breakdown events could be initiated at lower levels of applied field for spacers of this material than those with permittivity closely matched to that of the surrounding mineral oil. Polypropylene and low-density polyethylene are concluded to provide the most stable performance in mineral oil. Due to the similarity of the applied voltage wave-shape (1/6.5 mu s) to short-tail lightning impulses, the results may also be of interest to high-voltage system designers in the power industry. C1 [Wilson, Mark P.; Timoshkin, Igor V.; Given, Martin J.; MacGregor, Scott J.] Univ Strathclyde, Dept Elect & Elect Engn, Inst Energy & Environm, Glasgow G1 1XW, Lanark, Scotland. [Sinclair, Mark A.; Thomas, Ken J.] AWE Aldermaston, Hydrodynam Div, Reading RG7 4PR, Berks, England. [Lehr, Jane M.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Wilson, MP (reprint author), Univ Strathclyde, Dept Elect & Elect Engn, Inst Energy & Environm, Royal Coll Bldg,204 George St, Glasgow G1 1XW, Lanark, Scotland. OI Wilson, Mark/0000-0003-3088-8541 FU AWE Aldermaston FX M. P. W. gratefully acknowledges financial support of the study from AWE Aldermaston. NR 15 TC 14 Z9 16 U1 0 U2 11 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1070-9878 J9 IEEE T DIELECT EL IN JI IEEE Trns. Dielectr. Electr. Insul. PD AUG PY 2011 VL 18 IS 4 BP 1003 EP 1010 PG 8 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 807SB UT WOS:000293918900011 ER PT J AU Reass, WA Baca, DM Bland, MJ Gribble, RF Kwon, HJ Cho, YS Kim, DI McCarthy, J Clark, KB AF Reass, W. A. Baca, D. M. Bland, M. J. Gribble, R. F. Kwon, H. J. Cho, Y. S. Kim, D. I. McCarthy, J. Clark, K. B. TI Operations of Polyphase Resonant Converter-modulators at the Korean Atomic Energy Research Institute SO IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION LA English DT Article DE Power conditioning; resonant converter; modulator; Nanocrystalline transformer; IGBT AB This paper presents operational data and parameters of the newest generation of polyphase resonant high voltage converter modulator (HVCM) as developed and delivered to the KAERI 100 MeV "PEFP" accelerator. The KAERI design realizes improvements from the SNS and SLAC designs. The present KAERI system operates two parallel THALES TH2089F 350 MHz klystrons with total power draw of 50 amperes at 105 kV. An additional 3 klystron system operating at 105 kV and 75 A is also being considered for the high energy sections of this accelerator. In these systems, to improve the IGBT switching performance, the HVCMs will be fitted with artificial zero-voltage-switching (ZVS) networks at turn-off. This new method of artificial ZVS should result in a 6 fold reduction of IGBT switching losses. This will improve the HCVM conversion efficiency to better than 95% at full average power, which is 500 kW for the 2 klystron system and 750 kW for the 3 klystron system. The artificial ZVS is accomplished by placing a soft switching capacitor network across the resonant boost transformer primary winding. This low loss snubber circuit reduces the dv/dt across the IGBTs at turn-off. As the transformer input busswork is extremely low inductance (< 10 nH), the single network acts like it is across each IGBT collector-emitter terminal of the 4 transistor H-bridge switching network. We will review these topological improvements and the overall system as delivered to the KAERI accelerator with details of the installed operational results. C1 [Reass, W. A.; Baca, D. M.; Bland, M. J.; Gribble, R. F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Kwon, H. J.; Cho, Y. S.; Kim, D. I.] Korea Atom Energy Res Inst, Taejon 305353, South Korea. [McCarthy, J.; Clark, K. B.] Dynapower Corp, S Burlington, VT 05403 USA. RP Reass, WA (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. NR 7 TC 3 Z9 3 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1070-9878 J9 IEEE T DIELECT EL IN JI IEEE Trns. Dielectr. Electr. Insul. PD AUG PY 2011 VL 18 IS 4 BP 1104 EP 1110 PG 7 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 807SB UT WOS:000293918900025 ER PT J AU Aaltonen, T Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, JA Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauce, M Bauer, G Bedeschi, F Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Binkley, M Bisello, D Bizjak, I Bland, KR Blumenfeld, B Bocci, A Bodek, A Bortoletto, D Boudreau, J Boveia, A Brau, B Brigliadori, L Brisuda, A Bromberg, C Brucken, E Bucciantonio, M Budagov, J Budd, HS Budd, S Burkett, K Busetto, G Bussey, P Buzatu, A Calancha, C Camarda, S Campanelli, M Campbell, M Canelli, F Canepa, A Carls, B Carlsmith, D Carosi, R Carrillo, S Carron, S Casal, B Casarsa, M Castro, A Catastini, P Cauz, D Cavaliere, V Cavalli-Sforza, M Cerri, A Cerrito, L Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chou, JP Chung, WH Chung, YS Ciobanu, CI Ciocci, MA Clark, A Compostella, G Convery, ME Conway, J Corbo, M Cordelli, M Cox, CA Cox, DJ Crescioli, F Almenar, CC Cuevas, J Culbertson, R Dagenhart, D d'Ascenzo, N Datta, M de Barbaro, P De Cecco, S De Lorenzo, G Dell'Orso, M Deluca, C Demortier, L Deng, J Deninno, M Devoto, F d'Errico, M Di Canto, A Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Dorigo, M Dorigo, T Ebina, K Elagin, A Eppig, A Erbacher, R Errede, D Errede, S Ershaidat, N Eusebi, R Fang, HC Farrington, S Feindt, M Fernandez, JP Ferrazza, C Field, R Flanagan, G Forrest, R Frank, MJ Franklin, M Freeman, JC Funakoshi, Y Furic, I Gallinaro, M Galyardt, J Garcia, JE Garfinkel, AF Garosi, P Gerberich, H Gerchtein, E Giagu, S Giakoumopoulou, V Giannetti, P Gibson, K Ginsburg, CM Giokaris, N Giromini, P Giunta, M Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldin, D Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Grinstein, S Grosso-Pilcher, C Group, RC da Costa, JG Gunay-Unalan, Z Haber, C Hahn, SR Halkiadakis, E Hamaguchi, A Han, JY Happacher, F Hara, K Hare, D Hare, M Harr, RF Hatakeyama, K Hays, C Heck, M Heinrich, J Herndon, M Hewamanage, S Hidas, D Hocker, A Hopkins, W Horn, D Hou, S Hughes, RE Hurwitz, M Husemann, U Hussain, N Hussein, M Huston, J Introzzi, G Iori, M Ivanov, A James, E Jang, D Jayatilaka, B Jeon, EJ Jha, MK Jindariani, S Johnson, W Jones, M Joo, KK Jun, SY Junk, TR Kamon, T Karchin, PE Kasmi, A Kato, Y Ketchum, W Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kimura, N Kirby, M Klimenko, S Kondo, K Kong, DJ Konigsberg, J Kotwal, AV Kreps, M Kroll, J Krop, D Krumnack, N Kruse, M Krutelyov, V Kuhr, T Kurata, M Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G LeCompte, T Lee, E Lee, HS Lee, JS Lee, SW Leo, S Leone, S Lewis, JD Limosani, A Lin, CJ Linacre, J Lindgren, M Lipeles, E Lister, A Litvintsev, DO Liu, C Liu, Q Liu, T Lockwitz, S Lockyer, NS Loginov, A Lucchesi, D Lueck, J Lujan, P Lukens, P Lungu, G Lys, J Lysak, R Madrak, R Maeshima, K Makhoul, K Maksimovic, P Malik, S Manca, G Mangano, ML Manousakis-Katsikakis, A Margaroli, F Marino, C Martinez, M Martinez-Ballarin, R Mastrandrea, P Mathis, M Mattson, ME Mazzanti, P McFarland, KS McIntyre, P McNulty, R Mehta, A Mehtala, P Menzione, A Mesropian, C Miao, T Mietlicki, D Mitra, A Miyake, H Moed, S Moggi, N Mondragon, MN Moon, CS Moore, R Morello, MJ Morlock, J Fernandez, PM Mukherjee, A Muller, T Murat, P Mussini, M Nachtman, J Nagai, Y Naganoma, J Nakano, I Napier, A Nett, J Neu, C Neubauer, MS Nielsen, J Nodulman, L Norniella, O Nurse, E Oakes, L Oh, SH Oh, YD Oksuzian, I Okusawa, T Orava, R Ortolan, L Griso, SP Pagliarone, C Palencia, E Papadimitriou, V Paramonov, AA 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Muller, Th. Murat, P. Mussini, M. Nachtman, J. Nagai, Y. Naganoma, J. Nakano, I. Napier, A. Nett, J. Neu, C. Neubauer, M. S. Nielsen, J. Nodulman, L. Norniella, O. Nurse, E. Oakes, L. Oh, S. H. Oh, Y. D. Oksuzian, I. Okusawa, T. Orava, R. Ortolan, L. Griso, S. Pagan Pagliarone, C. Palencia, E. Papadimitriou, V. Paramonov, A. A. Patrick, J. Pauletta, G. Paulini, M. Paus, C. Pellett, D. E. Penzo, A. Phillips, T. J. Piacentino, G. Pianori, E. Pilot, J. Pitts, K. Plager, C. Pondrom, L. Potamianos, K. Poukhov, O. Prokoshin, F. Pronko, A. Ptohos, F. Pueschel, E. Punzi, G. Pursley, J. Rahaman, A. Ramakrishnan, V. Ranjan, N. Redondo, I. Renton, P. Rescigno, M. Rimondi, F. Ristori, L. Robson, A. Rodrigo, T. Rodriguez, T. Rogers, E. Rolli, S. Roser, R. Rossi, M. Rubbo, F. Ruffini, F. Ruiz, A. Russ, J. Rusu, V. Safonov, A. Sakumoto, W. K. Sakurai, Y. Santi, L. Sartori, L. Sato, K. Saveliev, V. Savoy-Navarro, A. Schlabach, P. Schmidt, A. Schmidt, E. E. Schmidt, M. P. Schmitt, M. Schwarz, T. Scodellaro, L. Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sexton-Kennedy, E. Sforza, F. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shiraishi, S. Shochet, M. Shreyber, I. Simonenko, A. Sinervo, P. Sissakian, A. Sliwa, K. Smith, J. R. Snider, F. D. Soha, A. Somalwar, S. Sorin, V. Squillacioti, P. Stancari, M. Stanitzki, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thome, J. Thompson, G. A. Thomson, E. Ttito-Guzman, P. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Tu, Y. Ukegawa, F. Uozumi, S. Varganov, A. Vazquez, F. Velev, G. Vellidis, C. Vidal, M. Vila, I. Vilar, R. Vizan, J. Vogel, M. Volpi, G. Wagner, P. Wagner, R. L. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Wick, F. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamaoka, J. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zucchelli, S. TI Measurement of the top pair production cross section in the lepton plus jets channel using a jet flavor discriminant SO PHYSICAL REVIEW D LA English DT Article ID COLLIDER DETECTOR; COLLISIONS; FERMILAB; QUARK AB We present a new method to measure the top quark pair production cross section and the background rates with data corresponding to an integrated luminosity of 2.7 fb(-1) from p (p) over bar collisions at root s = 1.96 TeV collected with the CDF II Detector. We select events with a single electron or muon candidate, missing transverse energy, and at least one b-tagged jet. We perform a simultaneous fit to a jet flavor discriminant across nine samples defined by the number of jets and b tags. An advantage of this approach is that many systematic uncertainties are measured in situ and inversely scale with integrated luminosity. We measure a top cross section of sigma(t (t) over bar) 7.64 +/- 0.57(stat + syst) +/- 0.45(luminosity) pb. C1 [Aaltonen, T.; Brucken, E.; Devoto, F.; Mehtala, P.; Orava, R.] Univ Helsinki, Div High Energy Phys, Dept Phys, FIN-00014 Helsinki, Finland. [Aaltonen, T.; Brucken, E.; Devoto, F.; Mehtala, P.; Orava, R.] Helsinki Inst Phys, FIN-00014 Helsinki, Finland. [Chen, Y. C.; Hou, S.; Mitra, A.; Teng, P. K.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [LeCompte, T.; Nodulman, L.; Paramonov, A. A.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Giakoumopoulou, V.; Giokaris, N.; Manousakis-Katsikakis, A.; Vellidis, C.] Univ Athens, GR-15771 Athens, Greece. 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[Buzatu, A.; Hussain, N.; Sinervo, P.; Stelzer, B.; Stelzer-Chilton, O.; Warburton, A.] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada. [Buzatu, A.; Hussain, N.; Sinervo, P.; Stelzer, B.; Stelzer-Chilton, O.; Warburton, A.] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada. [Buzatu, A.; Hussain, N.; Sinervo, P.; Stelzer, B.; Stelzer-Chilton, O.; Warburton, A.] Univ Toronto, Toronto, ON M5S 1A7, Canada. [Buzatu, A.; Hussain, N.; Sinervo, P.; Stelzer, B.; Stelzer-Chilton, O.; Warburton, A.] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Amidei, D.; Campbell, M.; Eppig, A.; Mietlicki, D.; Strycker, G. L.; Tecchio, M.; Varganov, A.; Wright, T.] Univ Michigan, Ann Arbor, MI 48109 USA. [Bromberg, C.; Campanelli, M.; Gunay-Unalan, Z.; Hussein, M.; Huston, J.; Tollefson, K.] Michigan State Univ, E Lansing, MI 48824 USA. [Shreyber, I.] ITEP, Inst Theoret & Expt Phys, Moscow 117259, Russia. [Gold, M.; Gorelov, I.; Seidel, S.; Strologas, J.; Vogel, M.] Univ New Mexico, Albuquerque, NM 87131 USA. [Anastassov, A.; Schmitt, M.; Stentz, D.] Northwestern Univ, Evanston, IL 60208 USA. [Hughes, R. E.; Lannon, K.; Pilot, J.; Wilson, J. S.; Winer, B. L.; Wolfe, H.] Ohio State Univ, Columbus, OH 43210 USA. [Nakano, I.] Okayama Univ, Okayama 7008530, Japan. [Hamaguchi, A.; Kato, Y.; Okusawa, T.; Seiya, Y.; Wakisaka, T.; Yamamoto, K.; Yoshida, T.] Osaka City Univ, Osaka 588, Japan. [Azfar, F.; Farrington, S.; Hays, C.; Linacre, J.; Oakes, L.; Renton, P.] Univ Oxford, Oxford OX1 3RH, England. [Amerio, S.; Bauce, M.; Bisello, D.; Busetto, G.; Compostella, G.; d'Errico, M.; Dorigo, T.; Lucchesi, D.; Griso, S. Pagan; Totaro, P.] Ist Nazl Fis Nucl, Sez Padova Trento, I-35131 Padua, Italy. [Bauce, M.; Bisello, D.; Busetto, G.; Compostella, G.; d'Errico, M.; Lucchesi, D.; Griso, S. Pagan] Univ Padua, I-35131 Padua, Italy. [Ciobanu, C. I.; Corbo, M.; d'Ascenzo, N.; Ershaidat, N.; Saveliev, V.; Savoy-Navarro, A.] Univ Paris 06, IN2P3, CNRS, UMR7585, F-75252 Paris, France. [Ciobanu, C. I.; Corbo, M.; d'Ascenzo, N.; Ershaidat, N.; Saveliev, V.; Savoy-Navarro, A.] LPNHE, Paris, France. [Canepa, A.; Heinrich, J.; Keung, J.; Kroll, J.; Lipeles, E.; Lockyer, N. S.; Pianori, E.; Rodriguez, T.; Thomson, E.; Tu, Y.; Wagner, P.; Whiteson, D.; Williams, H. H.] Univ Penn, Philadelphia, PA 19104 USA. [Barria, P.; Bedeschi, F.; Bellettini, G.; Bucciantonio, M.; Carosi, R.; Cavaliere, V.; Chiarelli, G.; Ciocci, M. A.; Crescioli, F.; Dell'Orso, M.; Di Canto, A.; Di Ruzza, B.; Donati, S.; Ferrazza, C.; Garosi, P.; Giannetti, P.; Giunta, M.; Introzzi, G.; Lami, S.; Latino, G.; Leo, S.; Leone, S.; Menzione, A.; Piacentino, G.; Punzi, G.; Ruffini, F.; Sartori, L.; Scribano, A.; Scuri, F.; Sforza, F.; Trovato, M.; Volpi, G.] Ist Nazl Fis Nucl, I-56127 Pisa, Italy. [Bellettini, G.; Bucciantonio, M.; Cavaliere, V.; Crescioli, F.; Dell'Orso, M.; Di Canto, A.; Donati, S.; Latino, G.; Leo, S.; Punzi, G.; Sforza, F.; Volpi, G.] Univ Pisa, I-56127 Pisa, Italy. [Barria, P.; Ciocci, M. A.; Garosi, P.; Ruffini, F.; Scribano, A.] Univ Siena, I-56127 Pisa, Italy. [Ferrazza, C.; Trovato, M.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Boudreau, J.; Gibson, K.; Liu, C.; Rahaman, A.; Ristori, L.; Shepard, P. F.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Apresyan, A.; Barnes, V. E.; Bortoletto, D.; Flanagan, G.; Garfinkel, A. F.; Jones, M.; Laasanen, A. T.; Liu, Q.; Margaroli, F.; Potamianos, K.; Ranjan, N.; Sedov, A.] Purdue Univ, W Lafayette, IN 47907 USA. [Bodek, A.; Budd, H. S.; Chung, Y. S.; de Barbaro, P.; Han, J. Y.; McFarland, K. S.; Sakumoto, W. K.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Demortier, L.; Gallinaro, M.; Goulianos, K.; Lungu, G.; Malik, S.; Mesropian, C.] Rockefeller Univ, New York, NY 10065 USA. [De Cecco, S.; Giagu, S.; Iori, M.; Mastrandrea, P.; Rescigno, M.] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy. [Giagu, S.; Iori, M.] Univ Roma La Sapienza, I-00185 Rome, Italy. [Halkiadakis, E.; Hare, D.; Hidas, D.; Lath, A.; Somalwar, S.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Asaadi, J.; Aurisano, A.; Elagin, A.; Eusebi, R.; Goldin, D.; Kamon, T.; Khotilovich, V.; Krutelyov, V.; Lee, E.; Lee, S. W.; McIntyre, P.; Nett, J.; Safonov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA. [Cauz, D.; Dorigo, M.; Pagliarone, C.; Pauletta, G.; Penzo, A.; Rossi, M.; Santi, L.; Zanetti, A.] Ist Nazl Fis Nucl, I-34100 Trieste, Italy. [Cauz, D.; Dorigo, M.; Pagliarone, C.; Pauletta, G.; Penzo, A.; Rossi, M.; Santi, L.; Zanetti, A.] Ist Nazl Fis Nucl, I-33100 Udine, Italy. [Pauletta, G.; Santi, L.] Univ Trieste Udine, I-33100 Udine, Italy. [Hara, K.; Kim, S. H.; Kurata, M.; Miyake, H.; Nagai, Y.; Sato, K.; Shimojima, M.; Sudo, Y.; Takemasa, K.; Takeuchi, Y.; Tomura, T.; Ukegawa, F.] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan. [Hare, M.; Napier, A.; Rolli, S.; Sliwa, K.; Whitehouse, B.] Tufts Univ, Medford, MA 02155 USA. [Group, R. C.; Neu, C.; Oksuzian, I.] Univ Virginia, Charlottesville, VA 22906 USA. RP Aaltonen, T (reprint author), Univ Helsinki, Div High Energy Phys, Dept Phys, FIN-00014 Helsinki, Finland. RI Gorelov, Igor/J-9010-2015; Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; vilar, rocio/P-8480-2014; Garcia, Jose /H-6339-2015; ciocci, maria agnese /I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Chiarelli, Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino, Giovanni/K-3269-2015; Martinez Ballarin, Roberto/K-9209-2015; De Cecco, Sandro/B-1016-2012; Robson, Aidan/G-1087-2011; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012; Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014 OI Dorigo, Mirco/0000-0002-0681-6946; Gallinaro, Michele/0000-0003-1261-2277; Brucken, Jens Erik/0000-0001-6066-8756; Torre, Stefano/0000-0002-7565-0118; Gorelov, Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117; Hays, Chris/0000-0003-2371-9723; Farrington, Sinead/0000-0001-5350-9271; Robson, Aidan/0000-0002-1659-8284; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; ciocci, maria agnese /0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi, Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924; Martinez Ballarin, Roberto/0000-0003-0588-6720; Punzi, Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398; Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science, and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A.P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; Korean World Class University; National Research Foundation of Korea; Science and Technology Facilities Council and the Royal Society, UK; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio, Spain; Slovak RD Agency; Academy of Finland FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science, and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland. NR 23 TC 8 Z9 8 U1 2 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD AUG 1 PY 2011 VL 84 IS 3 AR 031101 DI 10.1103/PhysRevD.84.031101 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 800BN UT WOS:000293332300001 ER PT J AU Singh, DJ AF Singh, David J. TI Electronic Transport in Old and New Thermoelectric Materials SO SCIENCE OF ADVANCED MATERIALS LA English DT Review DE Thermoelectric; Electronic Structure; Transport Theory ID GENERALIZED GRADIENT APPROXIMATION; LATTICE THERMAL-CONDUCTIVITY; 2ND VALENCE-BAND; FILLED SKUTTERUDITES; LEAD TELLURIDE; ROOM-TEMPERATURE; ENERGY-CONVERSION; CURRENT CARRIERS; SOLID-SOLUTIONS; PBTE AB There is no known fundamental limit to the performance of thermoelectric materials as characterized by the dimensionless figure of merit, ZT, and in fact there has been significant recent progress in improving the performance of practical materials. Here we discuss some of the issues involved in improving ZT starting from transport theory, with particular emphasis on recent results on IV-VI chalcogenides and filled skutterudites. C1 Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Singh, DJ (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RI Singh, David/I-2416-2012 FU U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies FX I am grateful for useful discussions and collaborations with David Parker, Mao-Hua Du and Alaska Subedi. This research was sponsored by the U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, as part of the Propulsion Materials Program. NR 78 TC 13 Z9 13 U1 2 U2 64 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1947-2935 J9 SCI ADV MATER JI Sci. Adv. Mater. PD AUG PY 2011 VL 3 IS 4 SI SI BP 561 EP 570 DI 10.1166/sam.2011.1183 PG 10 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 843LH UT WOS:000296672800004 ER PT J AU Salvador, JR Yang, J Wereszczak, AA Wang, H Cho, JY AF Salvador, J. R. Yang, J. Wereszczak, A. A. Wang, H. Cho, J. Y. TI Temperature Dependent Tensile Fracture Stress of n- and p-Type Filled-Skutterudite Materials SO SCIENCE OF ADVANCED MATERIALS LA English DT Article DE Thermoelectrics; Skutterudites; Weibull Modulus; Fracture Strength ID THERMOELECTRIC PROPERTIES; MECHANICAL-PROPERTIES AB While materials with excellent thermoelectric performance are most desirable for higher heat to electrical energy conversion efficiency, thermoelectric materials must also be sufficiently mechanically robust to withstand the large number of thermal cycles and vibrational stresses likely to be encountered while in service, particularly in automotive applications. Further these TE materials should be composed of non-toxic and naturally abundant constituent elements and be available as both n- and p-type varieties. Skutterudite based thermoelectric materials seemingly fit this list of criteria. In this contribution we report on the synthesis, tensile fracture strengths, low temperature electrical and thermal transport properties, and coefficients of thermal expansion (CTE), of the n-type skutterudite La0.5(+/-0.01)Ba0.07(+/-0.04)Yb0.08(+/-0.02)Co4.00(+/-0.01)Sb12.02(+/-0.03) and the p-type Ce0.30(+/-0.02)Co2.57(+/-10.02)Fe1.43(+/-0.02)Sb11.98(+/-0.03). Both materials have tensile fracture strengths that are temperature independent up to 500 degrees C, and are in the range of similar to 140 MPa as measured by a three point bend flexure test fixture described herein. The CTE's were measured by dual rod dilatometry and were determined to be 10.3 ppm/degrees C for the n-type material and 11.5 ppm/degrees C for p-type up to 450 degrees C. C1 [Salvador, J. R.] GM R&D Ctr, Chem Sci & Mat Syst Lab, Warren, MI 48090 USA. [Yang, J.] GM R&D Ctr, Electrochem Energy Res Lab, Warren, MI 48090 USA. [Wereszczak, A. A.; Wang, H.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Cho, J. Y.] Optimal Inc Plymouth Township, Plymouth Township, MI 48170 USA. RP Salvador, JR (reprint author), GM R&D Ctr, Chem Sci & Mat Syst Lab, Warren, MI 48090 USA. RI Yang, Jihui/A-3109-2009; Wang, Hsin/A-1942-2013; Wereszczak, Andrew/I-7310-2016 OI Wang, Hsin/0000-0003-2426-9867; Wereszczak, Andrew/0000-0002-8344-092X FU U.S. Department of Energy [DE-FC26-04NT42278]; U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies [DE-AC05-00OR22725]; UT-Battelle, LLC FX JRS, JYC, and JY would like to thank J. F. Herbst and M. W. Verbrugge for their continued support and encouragement. Elemental analysis provided by Richard Waldo, and powder X-ray diffraction measurements provided by Misle Tessema are highly appreciated. The work is supported by GM and U.S. Department of Energy under corporate agreement DE-FC26-04NT42278 and U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, as part of the Propulsion Materials Program, under contract DE-AC05-00OR22725 with UT-Battelle, LLC. We would also like to acknowledge Alan Thompson of Marlow Industries for aiding in the machining of test coupons used in for this study. NR 27 TC 10 Z9 10 U1 1 U2 14 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1947-2935 J9 SCI ADV MATER JI Sci. Adv. Mater. PD AUG PY 2011 VL 3 IS 4 SI SI BP 577 EP 586 DI 10.1166/sam.2011.1185 PG 10 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 843LH UT WOS:000296672800006 ER PT J AU Skoug, EJ Cain, JD Majsztrik, P Kirkham, M Lara-Curzio, E Morelli, DT AF Skoug, Eric J. Cain, Jeffrey D. Majsztrik, Paul Kirkham, Melanie Lara-Curzio, Edgar Morelli, Donald T. TI Doping Effects on the Thermoelectric Properties of Cu3SbSe4 SO SCIENCE OF ADVANCED MATERIALS LA English DT Article DE Thermoelectric; Diamond-Like Semicinductor; p-Type Doping ID CHALCOGENIDES; PERFORMANCE AB We present the first systematic doping study on the ternary semiconductor Cu3SbSe4. We have developed a novel synthesis procedure that produces high-quality polycrystalline samples with hole concentrations an order of magnitude lower than have previously been reported for the undoped compound. The hole concentration can be increased by adding small amounts of either Ge or Sn on the Sb site. The power factor increases with increasing doping, reaching a maximum value of 16 mu W/cmK(2). The thermoelectric properties are optimized for the 2% Sn doped compound which has ZT = 0.72 at 630 K, rivaling that of state-of-the-art thermoelectric materials in this temperature range. C1 [Skoug, Eric J.; Cain, Jeffrey D.; Morelli, Donald T.] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. [Majsztrik, Paul; Kirkham, Melanie; Lara-Curzio, Edgar] Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA. RP Skoug, EJ (reprint author), Michigan State Univ, Dept Chem Engn & Mat Sci, 2527 Engn Bldg, E Lansing, MI 48824 USA. RI Kirkham, Melanie/B-6147-2011 OI Kirkham, Melanie/0000-0001-8411-9751 FU National Science Foundation [NSF-CBET-0754029]; Center for Revolutionary Materials for Solid State Energy Conversion; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001054]; U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies FX This work is supported by the National Science Foundation under Award No. NSF-CBET-0754029. In addition, sample synthesis efforts were partially supported as part of the Center for Revolutionary Materials for Solid State Energy Conversion, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001054. Research through the Oak Ridge National Laboratory's High Temperature Materials Laboratory User Program was sponsored by the U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program. NR 25 TC 18 Z9 18 U1 3 U2 64 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1947-2935 J9 SCI ADV MATER JI Sci. Adv. Mater. PD AUG PY 2011 VL 3 IS 4 SI SI BP 602 EP 606 DI 10.1166/sam.2011.1189 PG 5 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 843LH UT WOS:000296672800010 ER PT J AU Shi, X Salvador, JR Yang, J Wang, H AF Shi, X. Salvador, J. R. Yang, J. Wang, H. TI Prospective Thermoelectric Materials: (AgSbTe2)(100-x)(SnTe)(x) Quaternary System (x=80, 85, 90, and 95) SO SCIENCE OF ADVANCED MATERIALS LA English DT Article DE Thermoelectrics; TASS; Low Thermal Conductivity ID MULTIPLE-FILLED SKUTTERUDITES; HIGH FIGURE; MERIT; AGPBMSBTE2+M; TRANSPORT AB (AgSbTe2)(100-x)(GeTe)(x) is an important p-type thermoelectric materials with high thermoelectric figure of merit (ZT). We report on the high temperature electrical and thermal transport properties of (AgSbTe2)(100-x)(SnTe)(x) compounds with x = 80, 85, 90, and 95. Similar to (AgSbTe2)(100-x)(GeTe)(x) (TAGS-x), (AgSbTe2)(100-x)(SnTe)(x) (TASS-x) alloys show very low thermal conductivity. The lowest lattice thermal conductivity value for TASS-85 is 0.3 W/m . K at room temperature, close to the minimum value for these types of materials. The Hall effect study demonstrates that the hole mobility in (AgSbTe2)(100-x)(SnTe)(x) compounds is higher than that in (AgSbTe2)(100-x)(GeTe)(x). Among all the compositions, (AgSbTe2)(15)(SnTe)(85) possesses the largest power factor and lowest thermal conductivity, thus resulting in the highest ZT of 0.75 at 800 K. Further optimization of the hole density in (AgSbTe2)(100-x)(SnTe)(x) may increase ZT to values comparable to those of TAGS-x compounds. C1 [Yang, J.] Gen Motors R&D Ctr, Electrochem Energy Res Lab, Warren, MI 48090 USA. [Shi, X.] Optimal Inc, Plymouth, MI 48170 USA. [Shi, X.; Salvador, J. R.] Gen Motors R&D Ctr, Chem Sci & Mat Syst Lab, Warren, MI 48090 USA. [Wang, H.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Yang, J (reprint author), Gen Motors R&D Ctr, Electrochem Energy Res Lab, Warren, MI 48090 USA. RI shi, xun/B-4499-2009; Yang, Jihui/A-3109-2009; Wang, Hsin/A-1942-2013 OI shi, xun/0000-0002-3806-0303; Wang, Hsin/0000-0003-2426-9867 FU GM; DOE [DE-FC26-04NT42278]; Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies; Department of Energy [DEAC05000OR22725] FX XS, JRS, AND JY would like to thank Drs. J. F. Herbst and M. W. Verbrugge for continuous support and encouragement. The work is supported by GM and by DOE under corporate agreement DE-FC26-04NT42278, by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies as part of the High Temperature Materials Laboratory User Program at Oak Ridge National Laboratory managed by the UT-Battelle LLC, for the Department of Energy under contract DEAC05000OR22725. NR 41 TC 9 Z9 9 U1 6 U2 45 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1947-2935 J9 SCI ADV MATER JI Sci. Adv. Mater. PD AUG PY 2011 VL 3 IS 4 SI SI BP 667 EP 671 DI 10.1166/sam.2011.1198 PG 5 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 843LH UT WOS:000296672800019 ER PT J AU Saraswat, V Kambadur, P Kodali, S Grove, D Krishnamoorthy, S AF Saraswat, Vijay Kambadur, Prabhanjan Kodali, Sreedhar Grove, David Krishnamoorthy, Sriram TI Lifeline-based Global Load Balancing SO ACM SIGPLAN NOTICES LA English DT Article DE UTS; global load balancing; distributed computing; X10; work-stealing; parallel programming; Algorithms; Design ID TERMINATION AB On shared-memory systems, Cilk-style work-stealing [5] has been used to effectively parallelize irregular task-graph based applications such as Unbalanced Tree Search (UTS) [24, 28]. There are two main difficulties in extending this approach to distributed memory. In the shared memory approach, thieves (nodes without work) constantly attempt to asynchronously steal work from randomly chosen victims until they find work. In distributed memory, thieves cannot autonomously steal work from a victim without disrupting its execution. When work is sparse, this results in performance degradation. In essence, a direct extension of traditional work-stealing to distributed memory violates the work-first principle underlying work-stealing. Further, thieves spend useless CPU cycles attacking victims that have no work, resulting in system inefficiencies in multi-programmed contexts. Second, it is non-trivial to detect active distributed termination (detect that programs at all nodes are looking for work, hence there is no work). This problem is well-studied and requires careful design for good performance. Unfortunately, in most existing languages/frameworks, application developers are forced to implement their own distributed termination detection. In this paper, we develop a simple set of ideas that allow work-stealing to be efficiently extended to distributed memory. First, we introduce lifeline graphs: low-degree, low-diameter, fully-connected directed graphs. Such graphs can be constructed from k-dimensional hypercubes. When a node is unable to find work after w unsuccessful steals, it quiesces after informing the outgoing edges in its lifeline graph. Quiescent nodes do not disturb other nodes. A quiesced node is reactivated when work arrives from a lifeline, and itself shares this work with those of its incoming lifelines that are activated. Termination occurs precisely when computation at all nodes has quiesced. In a language such as X10, such passive distributed termination can be detected automatically using the finish construct no application code is necessary. Our design is implemented in a few hundred lines of X10. On the binomial tree described in [26], the program achieve 87% efficiency on an Infiniband cluster of 1024 Power7 cores, with a peak throughput of 2.37 GNodes/sec. It achieves 87% efficiency on a Blue Gene/P with 2048 processors, and a peak throughput of 0.966 GNodes/s. All numbers are relative to single core sequential performance. This implementation has been refactored into a reusable global load balancing framework. Applications can use this framework to obtain global load balance with minimal code changes. In summary, we claim: (a) the first formulation of UTS that does not involve application level global termination detection, (b) the introduction of lifeline graphs to reduce failed steals (c) the demonstration of simple lifeline graphs based on k-hypercubes, (d) performance with superior efficiency (or the same efficiency but over a wider range) than published results on UTS. hi particular, our framework can deliver the same or better performance as an unrestricted random work-stealing implementation, while reducing the number of attempted steals. C1 [Krishnamoorthy, Sriram] Pacific NW Natl Lab, Richland, WA 99352 USA. EM vijay@saraswat.org; pkambadu@us.ibm.com; srkodali@in.ibm.com; groved@us.ibm.com; sriram@pnl.gov FU Office of Science of the U.S. Department of Energy [DE-AC02-06CH11357]; Defense Advanced Research Projects Agency [HR0011-07-9-0002] FX This research used resources of the Argonne Leadership Computing Facility at Argonne National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-06CH11357.; This material is based upon work supported by the Defense Advanced Research Projects Agency under its Agreement No. HR0011-07-9-0002. NR 30 TC 16 Z9 16 U1 1 U2 8 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA SN 0362-1340 J9 ACM SIGPLAN NOTICES JI ACM Sigplan Not. PD AUG PY 2011 VL 46 IS 8 BP 201 EP 211 PG 11 WC Computer Science, Software Engineering SC Computer Science GA 838CR UT WOS:000296264900021 ER PT J AU Agouzal, A Lipnikov, K Vassilevski, Y AF Agouzal, A. Lipnikov, K. Vassilevski, Yu. TI Families of meshes minimizing P-1 interpolation error for functions with indefinite Hessian SO RUSSIAN JOURNAL OF NUMERICAL ANALYSIS AND MATHEMATICAL MODELLING LA English DT Article ID SIMPLICIAL MESHES; GENERATION; ADAPTATION AB For a given function, we consider the problem of minimizing the P-1 interpolation error on a set of triangulations with a fixed number of triangles. The minimization problem is reformulated as the problem of generating a mesh which is quasi-uniform in a specially designed metric. For functions with indefinite Hessian, we show the existence of a set of metrics with highly diverse properties. This set may include both anisotropic and isotropic metrics, which produce families of different meshes providing a comparable reduction of interpolation error. The developed theory is verified with numerical examples. C1 [Agouzal, A.] Univ Lyon 1, Anal Numer Lab, F-69622 Villeurbanne, France. [Lipnikov, K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Vassilevski, Yu.] Inst Numer Math, Moscow 119333, Russia. RP Agouzal, A (reprint author), Univ Lyon 1, Anal Numer Lab, Bat 101, F-69622 Villeurbanne, France. EM vasilevs@dodo.inm.ras.ru RI Vassilevski, Yuri/A-6068-2016 FU Russian Foundation for Basic Research [11-01-00971]; RAS; Federal program 'Scientific and pedagogical stuff of innovative Russia' FX This research was partly supported by the Russian Foundation for Basic Research (grant 11-01-00971), the RAS program 'Optimal methods for problems of mathematical physics' and the Federal program 'Scientific and pedagogical stuff of innovative Russia'. NR 19 TC 0 Z9 0 U1 0 U2 1 PU WALTER DE GRUYTER & CO PI BERLIN PA GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY SN 0927-6467 J9 RUSS J NUMER ANAL M JI Russ. J. Numer. Anal. Math. Model PD AUG PY 2011 VL 26 IS 4 BP 337 EP 352 DI 10.1515/RJNAMM.2011.019 PG 16 WC Engineering, Multidisciplinary; Mathematics, Applied SC Engineering; Mathematics GA 839RX UT WOS:000296388000001 ER PT J AU Dolotko, O Kobayashi, T Wiench, JW Pruski, M Pecharsky, V AF Dolotko, Oleksandr Kobayashi, Takeshi Wiench, Jerzy W. Pruski, Marek Pecharsky, Vitalij TI Investigation of the thermochemical transformations in the LiAlH4-LiNH2 system SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE Metal hydrides; Hydrogen storage; Thermal decomposition; Rehydrogenation; Solid-state NMR; X-ray diffraction ID SOLID-STATE NMR; HYDROGEN STORAGE; COMPLEX HYDRIDES; THERMAL-DECOMPOSITION; QUADRUPOLAR NUCLEI; LITHIUM; DESTABILIZATION; SPECTROSCOPY; SENSITIVITY; IMIDES AB The thermal transformations in the lithium alanate-amide system consisting of lithium aluminum hydride (LiAlH4) and lithium amide (LiNH2), mixed in a 1:1 M ratio, were investigated using the pressure-composition-temperature analysis, solid-state nuclear magnetic resonance, X-ray powder diffraction, and residual gas analysis. Below 250 degrees C, the alanate decomposes into Al, LiH and H-2, through the formation of Li3AlH6, whereas the amide remains largely intact. The release of gaseous hydrogen corresponds to approximately 5 wt%. Above 250 degrees C, additional 4 wt% of hydrogen is produced through solidstate reactions among LiNH2, LiH and metallic Al, through the formation of intermetallic Li-Al binary alloy and an unidentified intermediate. The overall reaction of the thermochemical transformation of the LiAlH4 LiNH2 mixture results in the production of Li3AlN2, metallic Al, LiH and the release of 9 wt% of gaseous hydrogen. The reaction mechanism of the thermal decomposition is different from one identified earlier during mechanical treatment of the same system. Rehydrogenation of the thermally-decomposed products of LiAlH4-LiNH2 mixture using high hydrogen pressure (180 bar) and heating (275 degrees C) yields LiNH2 and amorphous aluminum nitride (AlN). Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Pecharsky, Vitalij] Iowa State Univ, Dept Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA. [Pruski, Marek] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Pecharsky, V (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames Lab, 253 Spedding, Ames, IA 50011 USA. EM vitkp@ameslab.gov FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; Iowa State University FX This research was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358 with Iowa State University. We thank Dr. Niraj Singh for helpful discussions. NR 37 TC 8 Z9 8 U1 4 U2 25 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD AUG PY 2011 VL 36 IS 17 BP 10626 EP 10634 DI 10.1016/j.ijhydene.2011.05.163 PG 9 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 824XJ UT WOS:000295235200021 ER PT J AU Wecker, MSA Meuser, JE Posewitz, MC Ghirardi, ML AF Wecker, Matt S. A. Meuser, Jonathan E. Posewitz, Matthew C. Ghirardi, Maria L. TI Design of a new biosensor for algal H-2 production based on the H-2-sensing system of Rhodobacter capsulatus SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE Hydrogen sensor; Biosensor; Rhodobacter capsulatus; Chlamydomonas reinhardtii; GFP; HupUV ID CHLAMYDOMONAS-REINHARDTII; HYDROGEN-PRODUCTION; BRADYRHIZOBIUM-JAPONICUM; GENE-EXPRESSION; RHODOPSEUDOMONAS-PALUSTRIS; SEQUENCE-ANALYSIS; PHOTOPRODUCTION; SENSORS; HUPT; PROTEINS AB The H-2-sensing system of Rhodobacter capsulatus was engineered to elicit a fluorescent response upon cell exposure to H-2. The system is surprisingly sensitive to H-2 and is capable of detecting levels of H-2 down to 200 pM in solution, which approximates the background concentration of H-2 in water exposed to the earth's atmosphere. The response was roughly linear between 0.3 and 300 ppm V of added headspace H-2 and gave a K-app of 142 nM H-2. when cells were grown anaerobically for 12 h in the presence of H-2. Hydrogen-sensing R. capsulatus cells were grown fermentatively in the dark in co-culture with Chlamydomonas reinhardtii on microtiter plates and the bacteria fluoresced in proportion to H-2 production by the algae. This represents a promising, high-throughput assay for H-2 production in algal libraries, and an enhanced capability for developing H-2 as a clean and renewable fuel. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Ghirardi, Maria L.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Wecker, Matt S. A.] GeneBiologics LLC, Boulder, CO 80303 USA. [Meuser, Jonathan E.] Colorado Sch Mines, Div Environm Sci & Engn, Golden, CO 80401 USA. [Posewitz, Matthew C.] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA. RP Ghirardi, ML (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM matt.wecker@nrel.gov; jmeuser@mymail.mines.edu; mposewit@mines.edu; maria.ghirardi@nrel.gov FU Department of Energy [KP160103] FX We would like to thank the following individuals for their gracious supplies: Dr. John C. Willison of the Laboratoire de Chimie et Biologie des Metaux in France for all R. capsulatus strains; and Dr. Michael Kovach of the Baldwin Wallace College in Ohio for the pBBR1MCS broad host range vectors. This work was funded by the Department of Energy's Biological and Environmental Research Program grant # KP160103. NR 46 TC 15 Z9 16 U1 2 U2 22 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD AUG PY 2011 VL 36 IS 17 BP 11229 EP 11237 DI 10.1016/j.ijhydene.2011.05.121 PG 9 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 824XJ UT WOS:000295235200086 ER PT J AU Cao, QH Carena, M Gori, S Menon, A Schwaller, P Wagner, CEM Wang, LT AF Cao, Qing-Hong Carena, Marcela Gori, Stefania Menon, Arjun Schwaller, Pedro Wagner, Carlos E. M. Wang, Lian-Tao TI W plus two jets from a quasi-inert Higgs doublet SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Beyond Standard Model; Higgs Physics ID BOSON AB We show that, the result recently reported by the CDF collaboration showing an excess in the invariant mass distribution of jet pairs produced in association with a W-boson can be explained by a simple extension of the Standard Model (SM) with an additional quasi-inert Higgs doublet. The two additional neutral Higgs states H-0 and A(0) have a mass of about 150 GeV and decay into a pair of jets. (WH0)-H-+/-/A(0) pairs are produced from the decay of the heavier charged Higgs boson H-+/-. Depending on the precise masses of the neutral and charged Higgs bosons, the model is shown to be in agreement with constraints from electroweak precision tests and from flavor physics for a broad range of the Standard Model-like Higgs mass from 100 GeV to several hundreds of GeV. Other possible signals of this model at the Tevatron and the LHC are discussed. C1 [Cao, Qing-Hong; Schwaller, Pedro; Wagner, Carlos E. M.] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA. [Cao, Qing-Hong; Carena, Marcela; Gori, Stefania; Wagner, Carlos E. M.; Wang, Lian-Tao] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Carena, Marcela] Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. [Menon, Arjun] IIT, Chicago, IL 60616 USA. [Schwaller, Pedro] Univ Illinois, Dept Phys, Chicago, IL 60607 USA. [Wagner, Carlos E. M.; Wang, Lian-Tao] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. RP Cao, QH (reprint author), Argonne Natl Lab, HEP Div, 9700 Cass Ave, Argonne, IL 60439 USA. EM qinghongcao@gmail.com; carena@fnal.gov; goris@uchicago.edu; aamenon@agni.phys.iit.edu; pschwaller@hep.anl.gov; cwagner@hep.anl.gov; liantaow@uchicago.edu FU U.S. Department of Energy (DOE), Div. of HEP [DE-AC02-06CH11357]; UIC DOE HEP [DE-FG02-84ER40173]; DOE [DE-SC0003930]; U.S. Department of Energy [DE-FG02-94ER40840]; Fermi Research Alliance, LLC [DE-AC02-07CH11359] FX We thank W. Altmannshofer and R. Culbertson for useful discussions. Work at ANL is supported in part by the U.S. Department of Energy (DOE), Div. of HEP, Contract DE-AC02-06CH11357. Fermilab is operated by the Fermi Research Alliance, LLC under Contract No DE-AC02-07CH11359 with the U.S. Department of Energy. P.S. is partially supported by the UIC DOE HEP Contract DE-FG02-84ER40173. L.-T. W. is supported by the DOE Early Career Award under grant DE-SC0003930. A.M. is supported by the U.S. Department of Energy under Contract No. DE-FG02-94ER40840. NR 34 TC 20 Z9 20 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 002 DI 10.1007/JHEP08(2011)002 PG 15 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200035 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Bansal, S Benucci, L De Wolf, EA Janssen, X Maps, J Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Velde, CV Vanlaer, P Adler, V Cimmino, A Costantini, S Grunewald, M Klein, B Lellouch, J Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L Gil, EC De Jeneret, JD Delaerel, C Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Nuttens, C Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Brito, L Damiao, DD Pol, ME Souza, MHG Alda, WL Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A Bernardes, CA Dias, FA Tomei, TRFP Gregores, EM Lagana, C Marinho, F Mercadante, PG Novaes, SF Padula, SS Darmenov, N Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Dimitrov, A Hadjiiska, R Karadzhinova, A Kozhuharov, V Litov, L Mateev, M Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Meng, X Tao, J Wang, J Wang, J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Khali, S Mahmoud, MA Hektor, A Kadastik, M Miintel, M Raidal, M Rebane, L Tiko, A Azzolini, V Eerola, P Fedi, G Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Karjalainen, A Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, P Chariot, C Dahms, T Dobrzynski, L Elgammal, S de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beauceron, S Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Lomidze, D Anagnostou, G Beranek, S Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Ata, M 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Tomaszewska, J Walsh, R Wissing, C Autermann, C Blobel, V Bobrovskyi, S Draeger, J Enderle, H Gebbert, U Gorner, M Kaschube, K Kaussen, G Kirschenmann, H Klanner, R Lange, J Mura, B Naumann-Emme, S Nowak, F Pietsch, N Sander, C Schettler, H Schleper, P Schlieckau, E Schroder, M Schum, T Schwandt, J Stadie, H Steinbruck, G Thomsen, J Barth, C Bauer, J Berger, J Buege, V Chwalek, T De Boer, W Dierlamm, A Dirkes, G Feindt, M Gruschke, J Hackstein, C Hartmann, F Heinrich, M Held, H Hoffmann, KH Hone, S Komaragiri, JR Kuhr, T Martschei, D Mueller, S Muller, T Niegel, M Oberst, O Oehler, A Ott, J Peiffer, T Quast, G Rabbertz, K Ratnikov, F Ratnikova, N Renz, M Saout, C Scheurer, A Schieferdecker, P Schilling, FP Schott, G Simonis, HJ Stober, FM Troendle, D Wagner-Kuhr, J Weiler, T Zeise, M Zhukov, V Ziebarth, EB Daskalakis, G Geralis, T Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I Markou, A Markou, C Mavrommatis, C Ntomari, E Petrakou, E Gouskos, L Mertzimekis, TJ Panagiotou, A Stiliaris, E Evangelou, I Foudas, C Kokkas, P Manthos, N Papadopoulos, I Patras, V Triantis, FA Aranyi, A Bencze, G Boldizsar, L Hajdul, C Hidas, P Horvath, D Kapusi, A Krajczar, K Sikler, F Veres, GI Vesztergombi, G Beni, N Molnar, J Palinkas, J Szillasi, Z Veszpremi, V Raics, P Trocsanyi, ZL Ujvari, B Beri, SB Bhatnagar, V Dhingra, N Gupta, R Jindal, M Kaur, M Kohli, JM Mehta, MZ Nishu, N Saini, LK Sharma, A Singh, AP Singh, J Singh, SP Ahuja, S Choudhary, BC Gupta, P Jain, S Kumar, A Kumar, A Naimuddin, M Ranjan, K Shivpuri, RK Banerjee, S Bhattacharya, S Dutta, S Gomber, B Jain, S Khurana, R Sarkar, S Choudhury, RK Dutta, D Kailas, S Kumar, V Mehta, P Mohanty, AK Pant, LM Shukla, P Aziz, T Guchait, M Gurtu, A Maity, M Majumder, D Majumder, G Mazumdar, K Mohanty, GB Saha, A Sudhakar, K Wickramage, N Banerjee, S Dugad, S Mondal, NK Arfaei, H Bakhshiansohi, H Etesami, SM Fahim, A Hashemi, M Jafari, A Khakzad, M Mohammadi, A Najafabadi, MM Mehdiabadi, SP Safarzadeh, B Zeinali, M 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CA Collaboration CMS TI Search for new physics with jets and missing transverse momentum in pp collisions at root s=7 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID SUPERSYMMETRIC PARTICLES; GRAND UNIFICATION; NEUTRALINO; COLLIDER; SQUARKS; GLUINOS; FB(-1); EVENTS; ENERGY; MSSM AB A search for new physics is presented based on an event signature of at least three jets accompanied by large missing transverse momentum, using a data sample corresponding to an integrated luminosity of 36 pb(-1) collected in proton-proton collisions at root s = 7 TeV with the CMS detector at the LHC. No excess of events is observed above the expected standard model backgrounds, which are all estimated from the data. Exclusion limits are presented for the constrained minimal supersymmetric extension of the standard model. Cross section limits are also presented using simplified models with new particles decaying to an undetected particle and one or two jets. C1 [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] Inst Hochenergiephys OeAW, Vienna, Austria. [Mossolov, V.; Shumeiko, N.; Gonzalez, J. Suarez] Natl Ctr Particle & High Energy Phys, Minsk, Byelarus. [Bansal, S.; Benucci, L.; De Wolf, E. A.; Janssen, X.; Maps, J.; Maes, T.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.] Univ Antwerp, Antwerp, Belgium. [Blekman, F.; Blyweert, S.; D'Hondt, J.; Devroede, O.; Suarez, R. 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S.; Jiang, C. H.; Liang, D.; Liang, S.; Meng, X.; Tao, J.; Wang, J.; Wang, J.; Wang, X.; Wang, Z.; Xiao, H.; Xu, M.; Zang, J.; Zhang, Z.] Inst High Energy Phys, Beijing 100039, Peoples R China. [Ban, Y.; Guo, S.; Guo, Y.; Li, W.; Mao, Y.; Qian, S. J.; Teng, H.; Zhu, B.; Zou, W.] Peking Univ, State Key Lab Nucl Phys & Tech, Beijing 100871, Peoples R China. [Cabrera, A.; Gomez Moreno, B.; Ocampo Rios, A. A.; Osorio Oliveros, A. F.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia. [Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.] Univ Cyprus, Nicosia, Cyprus. [Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic. [Assran, Y.; Khali, S.; Mahmoud, M. A.] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt. [Hektor, A.; Kadastik, M.; Miintel, M.; Raidal, M.; Rebane, L.; Tiko, A.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.; Fedi, G.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Czellar, S.; Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Karjalainen, A.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] IN2P3 CNRS, Lab Annecy le Vieux Phys Particules, Annecy Le Vieux, France. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Plestina, R.; Baffioni, S.; Beaudette, F.; Benhabib, L.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Chariot, C.; Dahms, T.; Dobrzynski, L.; Elgammal, S.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.] IN2P3 CNRS, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France. [Agram, J. -L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A-C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, CNRS IN2P3, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France. [Fassi, F.; Mercier, D.] Inst Natl Phys Nucl & Phys Particules IN2P3, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beauceron, S.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chasserat, J.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France. [Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia. [Anagnostou, G.; Beranek, S.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Dietz-Laursonn, E.; Erdmann, M.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Lingemann, J.; Magass, C.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katkovl, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Raval, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Goerner, M.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schroeder, M.; Schum, T.; Schwandt, J.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Hone, S.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F-P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Stiliaris, E.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdul, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Kumar, A.; Naimuddin, M.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Jain, S.; Khurana, R.; Sarkar, S.] Saha Inst Nucl Phys, Kolkata, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Potenza, A.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de la Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Pela, J.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Bunin, P.; Golutvin, I.; Karjavin, V.; Konoplyanikov, V.; Kozlov, G.; Laney, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Savina, M.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanovt, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Katkovl, I.; Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Penis, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Delaerel, C.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Jung, H.; Hajdul, C.; Sikler, F.; Mohanty, A. K.; De Filippis, N.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Montoya, C. A. Carrillo; Iorio, A. O. M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Lucaroni, A.; Taroni, S.; Boccali, T.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Botta, C.; Graziano, A.; Pela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Lon, P. Bail; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Coarasa Perez, J. A.; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvoldl, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Racz, A.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.] Paul Scherrer Inst, Villigen, Switzerland. [Baeni, L.; Bortignon, P.; Caminada, L.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucukle, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA. [Henderson, C.] Univ Alabama, Tuscaloosa, AL USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wiirthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois Chicago UIC, Chicago, IL USA. [Ozturk, S.; Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J-P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Iran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Iii, R. P. Kenny; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kim, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y-J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.; Zennamo, J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; De Mattia, M.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. 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Dahms, Torsten/0000-0003-4274-5476; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152 NR 57 TC 33 Z9 33 U1 1 U2 40 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. 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PD AUG PY 2011 IS 8 AR 155 DI 10.1007/JHEP08(2011)155 PG 46 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200004 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rahbaran, B Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Bansal, S Benucci, L De Wolf, EA Janssen, X Maes, J Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Velde, CV Vanlaer, P Adler, V 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CA CMS Collaboration TI Search for supersymmetry in pp collisions at root s=7 TeV in events with a single lepton, jets, and missing transverse momentum SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID PROTON-PROTON COLLISIONS; PARTICLE PHYSICS; HADRON COLLIDERS; ATLAS DETECTOR; DARK-MATTER; NEUTRALINO; SQUARKS; GLUINOS; FB(-1); MSSM AB Results are reported from a search for physics beyond the standard model in proton-proton collisions at a center-of-mass energy of 7TeV, focusing on the signature with a single, isolated, high-transverse-momentum lepton (electron or muon), energetic jets, and large missing transverse momentum. The data sample comprises an integrated luminosity of 36 pb(-1); recorded by the CMS experiment at the LHC. The search is motivated by models of new physics, including supersymmetry. The observed event yields are consistent with standard model backgrounds predicted using control samples obtained from the data. The characteristics of the event sample are consistent with those expected for the production of t (t) over bar and W+ jets events. The results are interpreted in terms of limits on the parameter space for the constrained minimal supersymmetric extension of the standard model. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Pauss, F.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rahbaran, B.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] Inst Hochenergiephys OeAW, Vienna, Austria. [Mossolov, V.; Shumeiko, N.; Gonzalez, J. Suarez] Natl Ctr Particle & High Energy Phys, Minsk, Byelarus. [Bansal, S.; Benucci, L.; De Wolf, E. A.; Janssen, X.; Maes, J.; Maes, T.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.; Van Remortel, N.] Univ Antwerp, Antwerp, Belgium. [Blekman, F.; Blyweert, S.; D'Hondt, J.; Devroede, O.; Suarez, R. Gonzalez; Kalogeropoulos, A.; Maes, M.; Van Doninck, W.; Van Mulders, P.; Van Onsem, G. P.; Villella, I.] Vrije Univ Brussel, Brussels, Belgium. [Charaf, O.; Clerbaux, B.; De Lentdecker, G.; Dero, V.; Gay, A. P. R.; Hammad, G. H.; Hreus, T.; Marage, P. E.; Thomas, L.; Velde, C. Vander; Vanlaer, P.] Univ Libre Bruxelles, Brussels, Belgium. [Adler, V.; Cimmino, A.; Costantini, S.; Grunewald, M.; Klein, B.; Lellouch, J.; Marinov, A.; Mccartin, J.; Ryckbosch, D.; Thyssen, F.; Tytgat, M.; Vanelderen, L.; Verwilligen, P.; Walsh, S.; Zaganidis, N.] Univ Ghent, B-9000 Ghent, Belgium. [Basegmez, S.; Bruno, G.; Caudron, J.; Ceard, L.; Gil, E. Cortina; De Jeneret, J. De Favereau; Delaere, C.; Favart, D.; Giammanco, A.; Gregoire, G.; Hollar, J.; Lemaitre, V.; Liao, J.; Militaru, O.; Nuttens, C.; Ovyn, S.; Pagano, D.; Pin, A.; Piotrzkowski, K.; Schul, N.] Catholic Univ Louvain, B-1348 Louvain, Belgium. [Beliy, N.; Caebergs, T.; Daubie, E.] Univ Mons, B-7000 Mons, Belgium. [Alves, G. A.; Brito, L.; De Jesus Damiao, D.; Pol, M. E.; Souza, M. H. G.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil. [Alda Junior, W. L.; Carvalho, W.; Da Costa, E. M.; De Oliveira Martins, C.; Fonseca De Souza, S.; Mundim, L.; Nogima, H.; Oguri, V.; Prado Da Silva, W. L.; Santoro, A.; Silva Do Amaral, S. M.; Sznajder, A.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil. [Bernardes, C. A.; Dias, F. A.; Fernandez Perez Tomei, T. R.; Gregores, E. M.; Lagana, C.; Marinho, F.; Mercadante, P. G.; Novaes, S. F.; Padula, Sandra S.; Horvath, D.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil. [Darmenov, N.; Genchev, V.; Iaydjiev, P.; Piperov, S.; Rodozov, M.; Stoykova, S.; Sul-Tanov, G.; Tcholakov, V.; Trayanov, R.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria. [Dimitrov, A.; Hadjiiska, R.; Karadzhinova, A.; Kozhuharov, V.; Litov, L.; Mateev, M.; Pavlov, B.; Petkov, P.] Univ Sofia, BU-1126 Sofia, Bulgaria. [Bian, J. G.; Chen, G. M.; Chen, H. S.; Jiang, C. H.; Liang, D.; Liang, S.; Meng, X.; Tao, J.; Wang, J.; Wang, J.; Wang, X.; Wang, Z.; Xiao, H.; Xu, M.; Zang, J.; Zhang, Z.] Inst High Energy Phys, Beijing 100039, Peoples R China. [Ban, Y.; Guo, S.; Guo, Y.; Li, W.; Mao, Y.; Qian, S. J.; Teng, H.; Zhu, B.; Zou, W.] Peking Univ, State Key Lab Nucl Phys & Tech, Beijing 100871, Peoples R China. [Cabrera, A.; Gomez Moreno, B.; Ocampo Rios, A. A.; Osorio Oliveros, A. F.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia. [Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.] Univ Cyprus, Nicosia, Cyprus. [Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic. [Assran, Y.; Kamel, A. Ellithi; Khalil, S.; Mahmoud, M. A.] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt. [Hektor, A.; Kadastik, M.; Muentel, M.; Raidal, M.; Rebane, L.; Tiko, A.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.; Fedi, G.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Czellar, S.; Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Karjalainen, A.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] IN2P3 CNRS, Lab Annecy le Vieux Phys Particules, Annecy Le Vieux, France. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Plestina, R.; Baffioni, S.; Beaudette, F.; Benhabib, L.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dahms, T.; Dobrzynski, L.; Elgammal, S.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.] IN2P3 CNRS, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France. [Agram, J. -L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J-M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A-C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, CNRS IN2P3, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France. [Fassi, F.; Mercier, D.] Inst Natl Phys Nucl & Phys Particules IN2P3, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beauceron, S.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chasserat, J.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France. [Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia. [Anagnostou, G.; Beranek, S.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Dietz-Laursonn, E.; Erdmann, M.; Hebbeker, T.; Heidemann, C.; Hinzmann, A.; Hoepfner, K.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Lingemann, J.; Magass, C.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Inst Phys 3, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Raval, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Goerner, M.; Hermanns, T.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schroeder, M.; Schum, T.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Stiliaris, E.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdu, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Kumar, A.; Naimuddin, M.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Jain, S.; Khurana, R.; Sarkar, S.] Saha Inst Nucl Phys, Kolkata, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Hesari, H.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Passaseo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Potenza, A.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius State Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de la Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Pela, J.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Bunin, P.; Golutvin, I.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Savina, M.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Katkov, I.; Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, Ctr Invest Energet Medioambient & Tecnol, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Darmenov, N.; Genchev, V.; Iaydjiev, P.; Jung, H.; Hajdu, C.; Sikler, F.; Mohanty, A. K.; De Filippis, N.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Montoya, C. A. Carrillo; Iorio, A. O. M.; Perrozzi, L.; Lucaroni, A.; Taroni, S.; Boccali, T.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Botta, C.; Graziano, A.; Pela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland. [Baeni, L.; Bortignon, P.; Caminada, L.; Casal, B.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A-M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA. [Henderson, C.] Univ Alabama, Tuscaloosa, AL USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Urthwein, F. W.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois Chicago UIC, Chicago, IL USA. [Ozturk, S.; Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Iii, R. P. Kenny; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.; Zennamo, J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. 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Dudko, Lev/0000-0002-4462-3192; Della Ricca, Giuseppe/0000-0003-2831-6982; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301 FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences; NICPB (Estonia); Academy of Finland; MEC; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU (Korea); LAS (Lithuania); CINVES-TAV; CONACYT; SEP; UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST; MAE; RFBR (Russia); MSTD (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA); Marie-Curie programme; European Research Council (European Union); Leventis Foundation; A. P. Sloan Foundation; Alexander von Humboldt Foundation; Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); Council of Science and Industrial Research, India FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVES-TAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST, MAE and RFBR (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); and the Council of Science and Industrial Research, India. NR 61 TC 22 Z9 22 U1 1 U2 41 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 156 DI 10.1007/JHEP08(2011)156 PG 43 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200003 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Vander Velde, C Vanlaer, P Adler, V Cimmino, A 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Goulianos, K. Lungu, G. Malik, S. Mesropian, C. Yan, M. Atramentov, O. Barker, A. Duggan, D. Gershtein, Y. Gray, R. Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Asaadi, J. Eusebi, R. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Nguyen, C. N. Osipenkov, I. Pakhotin, Y. Pivarski, J. Safonov, A. Sengupta, S. Tatarinov, A. Toback, D. Weinberger, M. Akchurin, N. Bardak, C. Damgov, J. Jeong, C. Kovitanggoon, K. Lee, S. W. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Issah, M. Johns, W. Kurt, P. Maguire, C. Melo, A. Sheldon, P. Snook, B. Tuo, S. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Cox, B. Francis, B. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Bellinger, J. N. Carlsmith, D. Dasu, S. Efron, J. Flood, K. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Klabbers, P. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Loveless, R. Mohapatra, A. Palmonari, F. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Measurement of the inclusive Z cross section via decays to tau pairs in pp collisions at root s=7 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering AB The first measurement of inclusive Z > tau(+) tau(-) production in pp collisions at the LHC is presented, in the final states mu+hadrons, e+hadrons, e-mu, and mu+mu. The data sample corresponds to an integrated luminosity of 36 pb(-1) collected with the CMS detector. The measured cross section is sigma (pp -> ZX) x B (Z -> tau(+)tau(-)) = 1.00 +/- 0.05 (stat.)+/- 0.08 (syst.) +/- 0.04 (lumi.) nb, which is in good agreement with the next-to-next-to-leading order QCD prediction and improves on previous measurements in the Z -> e(+)e(-) and mu(+)mu(-) channels. The reconstruction efficiency for hadronic T decays is determined with a precision of 7%. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kasieczka, G.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] OeAW, Inst Hochenergiephys, Vienna, Austria. [Mossolov, V.; Shumeiko, N.; Gonzalez, J. 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T.; Nespolo, M.; Passaseo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Ventura, S.; Zotto, P.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Kaminskiy, A.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Rolandi, G.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Engn, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jeong, M. S.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Kim, H.; Choi, M.; Kang, S.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Kwon, E.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius State Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Lopez-Fernandez, R.; Magana Villalba, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoameri, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Smirnov, V.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Katkov, I.; Zhukov, V.; Kaminskiy, A.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.; Adiguzel, A.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Hammer, J.; Delaere, C.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Jung, H.; Hajdu, C.; Sikler, F.; Sharma, A.; Mohanty, A. K.; De Filippis, N.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Montoya, C. A. Carrillo; Iorio, A. O. M.; Nespolo, M.; Perrozzi, L.; Lucaroni, A.; Taroni, S.; Boccali, T.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Botta, C.; Graziano, A.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Polese, G.; Racz, A.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland. [Weber, M.; Bortignon, P.; Caminada, L.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Chang, Y. H.; Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Ctr Nat Sci, Kharkov Phys & Technol Inst, Kharkov, Ukraine. [Hansen, M.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Bhattacharya, S.; Avetisyan, A.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Felcini, M.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Liu, H.; Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Das, S.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Banerjee, S.; Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. 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L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, Vic, Australia. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Iii, R. P. Kenny; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Li, W.; Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. 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[Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Flood, K.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Palmonari, F.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA. [Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Khalil, S.] British Univ, Cairo, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.] Univ Haute Alsace, Mulhouse, France. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. [Krajczar, K.; Veres, G. I.; Vesztergombi, G.] Eotvos Lorand Univ, Budapest, Hungary. [Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Bakhshiansohi, H.; Fahim, A.; Jafari, A.] Sharif Univ Technol, Tehran, Iran. [Mohammadi, A.] Shiraz Univ, Shiraz, Iran. [Zeinali, M.] Isfahan Univ Technol, Esfahan, Iran. [Cavallo, N.; Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Lacaprara, S.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy. [Martini, L.] Univ Siena, I-53100 Siena, Italy. [Bell, A. J.] Univ Geneva, Geneva, Switzerland. [Rolandi, G.] Sezione Ist Nazl Fis Nucl, Pisa, Italy. [Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Cerci, S.; Cerci, D. Sunar] Adiyaman Univ, Adiyaman, Turkey. [Sogut, K.] Mersin Univ, Mersin, Turkey. [Demir, D.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey. 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RI Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini, Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ferguson, Thomas/O-3444-2014; Benussi, Luigi/O-9684-2014; Russ, James/P-3092-2014; Dahms, Torsten/A-8453-2015; Rolandi, Luigi (Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Markina, Anastasia/E-3390-2012; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; de Jesus Damiao, Dilson/G-6218-2012; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Stahl, Achim/E-8846-2011; Mercadante, Pedro/K-1918-2012; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Tomei, Thiago/E-7091-2012; Focardi, Ettore/E-7376-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra /G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012; Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler, Manfred/H-3106-2012; Venturi, Andrea/J-1877-2012; Katkov, Igor/E-2627-2012; Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton, Tim/A-7951-2012; Yang, Fan/B-2755-2012; buotempo, salvatore/B-5210-2012; Krammer, Manfred/A-6508-2010; Tinoco Mendes, Andre David/D-4314-2011; Lokhtin, Igor/D-7004-2012; Kodolova, Olga/D-7158-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Belyaev, Andrey/E-1540-2012; Matorras, Francisco/I-4983-2015; Ragazzi, Stefano/D-2463-2009; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov, Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; Cakir, Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Ozdemir, Kadri/P-8058-2014; Grandi, Claudio/B-5654-2015; Leonidov, Andrey/P-3197-2014; Ahmed, Ijaz/E-9144-2015; Lazzizzera, Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; My, Salvatore/I-5160-2015; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Gerbaudo, Davide/J-4536-2012; Della Ricca, Giuseppe/B-6826-2013; Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Sznajder, Andre/L-1621-2016; Vilela Pereira, Antonio/L-4142-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016 OI Scodellaro, Luca/0000-0002-4974-8330; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ferguson, Thomas/0000-0001-5822-3731; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Dahms, Torsten/0000-0003-4274-5476; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Stahl, Achim/0000-0002-8369-7506; Mundim, Luiz/0000-0001-9964-7805; Tomei, Thiago/0000-0002-1809-5226; Focardi, Ettore/0000-0002-3763-5267; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; Katkov, Igor/0000-0003-3064-0466; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Krammer, Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192; Matorras, Francisco/0000-0003-4295-5668; Ragazzi, Stefano/0000-0001-8219-2074; Rovelli, Tiziano/0000-0002-9746-4842; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; My, Salvatore/0000-0002-9938-2680; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Heath, Helen/0000-0001-6576-9740; Della Ricca, Giuseppe/0000-0003-2831-6982; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Sznajder, Andre/0000-0001-6998-1108; Vilela Pereira, Antonio/0000-0003-3177-4626; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301 FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences; NICPB (Estonia); Academy of Finland; ME; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST; MAE (Russia); MSTDS (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTDS (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 29 TC 7 Z9 7 U1 1 U2 41 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 117 DI 10.1007/JHEP08(2011)117 PG 32 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200044 ER PT J AU Chatrchyan, S Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L De Wolf, EA Janssen, X Maes, J Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, M Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Vander Velde, C Vanlaer, P Adler, V Cimmino, A 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Vishnevskiy, D. Zielinski, M. Bhatti, A. Ciesielski, R. Demortier, L. Goulianos, K. Lungu, G. Malik, S. Mesropian, C. Yan, M. Atramentov, O. Barker, A. Duggan, D. Gershtein, Y. Gray, R. Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Eusebi, R. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Osipenkov, I. Pakhotin, Y. Pivarski, J. Safonov, A. Sengupta, S. Tatarinov, A. Toback, D. Weinberger, M. Akchurin, N. Bardak, C. Damgov, J. Jeong, C. Kovitanggoon, K. Lee, S. W. Mane, P. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Issah, M. Johns, W. Kurt, P. Maguire, C. Melo, A. Sheldon, P. Snook, B. Tuo, S. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Cox, B. Francis, B. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Bellinger, J. N. Carlsmith, D. Dasu, S. Efron, J. Flood, K. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Klabbers, P. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Loveless, R. Mohapatra, A. Palmonari, F. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Charged particle transverse momentum spectra in pp collisions at root s=0.9 and 7 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID QUARK-GLUON PLASMA; COLLABORATION; PERSPECTIVE AB The charged particle transverse momentum (p(T)) spectra are presented for pp collisions at root s = 0.9 and 7 TeV. The data samples were collected with the CMS detector at the LHC and correspond to integrated luminosities of 231 mu b(-1) and 2.96 pb(-1), respectively. Calorimeter-based high-transverse-energy triggers are employed to enhance the statistical reach of the high-p(T) measurements. The results are compared with leading and next-to-leading order QCD and with an empirical scaling of measurements at different collision energies using the scaling variable x(T) equivalent to 2p(T)/root s over the p(T) range up to 200 GeV/e. Using a combination of xi, scaling and direct interpolation at fixed p(T), a reference transverse momentum spectrum at root s = 2.76 TeV is constructed, which can be used for studying high-p(T) particle suppression in the dense QCD medium produced in heavy-ion collisions at that centre-of-mass energy. C1 [Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. 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[De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jeong, M. S.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Kim, H.; Choi, M.; Kang, S.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Kwon, E.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.; Yiu, C. H.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Kodolova, O.; Korotkikh, V.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Maestre, J. Alcaraz; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Llatas, M. Chamizo; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Hammer, J.; Delaere, C.; Darmenov, N.; Genchev, V.; Iaydjiev, P.; Jung, H.; Hajdu, C.; Krajczar, K.; Sharma, A.; Mohanty, A. K.; De Filippis, N.; Tropiano, A.; De Guio, F.; Gennai, S.; Montoya, C. A. Carrillo; Iorio, A. O. M.; Nespolo, M.; Perrozzi, L.; Lucaroni, A.; Taroni, S.; Boccali, T.; Tonelli, G.; Venturi, A.; Grassi, M.; Pandolfi, F.; Rovelli, C.; Botta, C.; Graziano, A.; Kossov, M.; Grishin, V.; Abbaneo, D.; Ray, E. Au Ff; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Racz, A.; Antunes, J. Rodrigues; Rolandi, G.; Rommerskirchen, T.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoye, M.; Tadel, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.] Paul Scherrer Inst, Villigen, Switzerland. [Weber, M.; Bortignon, P.; Caminada, L.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Dutta, S.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Chang, Y. H.; Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine. [Hansen, M.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Bhattacharya, S.; Avetisyan, A.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Liu, H.; Breedon, R.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Liu, H.; Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.; Kelly, T.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Cassel, D.; Chatterjee, A.; Das, S.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Banerjee, S.; Yang, Y.; Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Mesa, D.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hamdan, S.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] UIC, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Kenny, R. P., III; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Li, W.; Ma, Y.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Loizides, C.; Luckey, P. D.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Kumar, A.; Baur, U.; Godshalk, A.; Iashvili, I.; Kharchilava, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Schmitt, M.; Anastassov, A.; Kubik, A.; Odell, N.; Erzynski, R. A. O. Fi; Pollack, B.; Pozdnyakov, A.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Malik, S.; Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Issah, M.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. 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Bedoya, Cristina/K-8066-2014; My, Salvatore/I-5160-2015; Matorras, Francisco/I-4983-2015; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Paulini, Manfred/N-7794-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ferguson, Thomas/O-3444-2014; Ragazzi, Stefano/D-2463-2009; Benussi, Luigi/O-9684-2014; Russ, James/P-3092-2014; Grandi, Claudio/B-5654-2015; Leonidov, Andrey/P-3197-2014; Ahmed, Ijaz/E-9144-2015; Lazzizzera, Ignazio/E-9678-2015; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Markina, Anastasia/E-3390-2012; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Codispoti, Giuseppe/F-6574-2014; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; 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Dudko, Lev/D-7127-2012 OI Heath, Helen/0000-0001-6576-9740; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; bianco, stefano/0000-0002-8300-4124; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255; Gonzi, Sandro/0000-0003-4754-645X; Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146; Bean, Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619; Boccali, Tommaso/0000-0002-9930-9299; Menasce, Dario Livio/0000-0002-9918-1686; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Bilki, Burak/0000-0001-9515-3306; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350; Ligabue, Franco/0000-0002-1549-7107; Seixas, Joao/0000-0002-7531-0842; Sznajder, Andre/0000-0001-6998-1108; Vilela Pereira, Antonio/0000-0003-3177-4626; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Della Ricca, Giuseppe/0000-0003-2831-6982; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; My, Salvatore/0000-0002-9938-2680; Matorras, Francisco/0000-0003-4295-5668; Rovelli, Tiziano/0000-0002-9746-4842; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ferguson, Thomas/0000-0001-5822-3731; Ragazzi, Stefano/0000-0001-8219-2074; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Amapane, Nicola/0000-0001-9449-2509; Stahl, Achim/0000-0002-8369-7506; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Tomei, Thiago/0000-0002-1809-5226; Focardi, Ettore/0000-0002-3763-5267; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Katkov, Igor/0000-0003-3064-0466; Krammer, Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192 FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences; NICPB (Estonia); Academy of Finland; MEC; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU (Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST; MAE (Russia); MSTD (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA); Marie-Curie programme; European Research Council (European Union); Leventis Foundation; A. P. Sloan Foundation; Alexander von Humboldt Foundation; Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); and the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium). NR 46 TC 19 Z9 19 U1 1 U2 45 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 086 DI 10.1007/JHEP08(2011)086 PG 39 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200075 ER PT J AU Cheung, C D'Eramo, F Thaler, J AF Cheung, Clifford D'Eramo, Francesco Thaler, Jesse TI The spectrum of goldstini and modulini SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Supersymmetry Breaking; Supergravity Models; Supersyminetric Standard Model ID SUPERSYMMETRY-BREAKING; SUPERGRAVITY AB When supersymmetry is broken in multiple sectors via independent dynamics, the theory furnishes a corresponding multiplicity of "goldstini" degrees of freedom Nvhich may play a substantial role in collider phenomenology and cosmology. In this paper, we explore the tree-level mass spectrum of goldstini arising from a general admixture of F-term. D-term, and almost no-scale supersymmetry breaking, employing non-linear superfields and a novel gauge fixing for supergravity discussed in a companion paper. In theories of F-term and D-term breaking, goldstini acquire a mass which is precisely twice the gravitino mass, while the inclusion of no-scale breaking renders one of these modes, the modulino, massless. We argue that the vanishing modulino mass can be explained in terms of an accidental and spontaneously broken "global" supersynanetry. C1 [Cheung, Clifford] Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA. [Cheung, Clifford] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA. [D'Eramo, Francesco; Thaler, Jesse] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA. RP Cheung, C (reprint author), Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA. EM clifford.cheung@berkeley.edu; fderamo@mit.edu; jthaler@jthaler.net OI Thaler, Jesse/0000-0002-2406-8160; D'Eramo, Francesco/0000-0001-8499-7685 FU Office of Science Office of High Energy and Nuclear Physics, of the PS Department of Energy [DE-AC02-05CH11231]; National Science Foundation [PHY-0457315]; U.S. Department of Energy [DE-FG02-05ER41360] FX We thank Markus Luty, Yasunori Nomura, Raman Sundrurn, and Jay Wacker for helpful conversations. C.C is supported in part by the Director, Office of Science Office of High Energy and Nuclear Physics, of the PS Department of Energy under Contract DE-AC02-05CH11231 and by the National Science Foundation on grant PHY-0457315. F.D. and J.T. are supported by the U.S. Department of Energy under cooperative research agreement Contract Number DE-FG02-05ER41360. NR 31 TC 15 Z9 15 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 115 DI 10.1007/JHEP08(2011)115 PG 19 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200046 ER PT J AU Hook, A Torroba, G AF Hook, Anson Torroba, Gonzalo TI A microscopic theory of gauge mediation SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Supersymmetry and Duality; Supersymmetry Breaking ID DYNAMICAL SUPERSYMMETRY BREAKING; MODELS AB We construct models of indirect gauge mediation where the dynamics responsible for breaking supersymmetry simultaneously generates a weakly coupled subsector of messengers. This provides a microscopic realization of messenger gauge mediation where the messenger and hidden sector fields are unified into a single sector. The UV theory is SQCD with massless and massive quarks plus singlets, and at low energies it flows to a weakly coupled quiver gauge theory. One node provides the primary source of supersymmetry breaking, which is then transmitted to the node giving rise to the messenger fields. These models break R-symmetry spontaneously, produce realistic gaugino and sfermion masses, and give a heavy gravitino. C1 [Hook, Anson] Stanford Univ, SLAC, Stanford, CA 94309 USA. Stanford Univ, Dept Phys, Stanford, CA 94309 USA. RP Hook, A (reprint author), Stanford Univ, SLAC, 2575 Sand Hill Rd, Stanford, CA 94309 USA. EM hook@stanford.edu; torrobag@slac.stanford.edu FU US DOE at SLAC [DE-AC02-76SF00515] FX We are grateful to R. Essig and S. Kachru for very helpful discussions on gauge mediation and phenomenology. We would also like to thank N. Craig, R. Essig, S. Kachru, S. Franco, A. Nacif, S. Schafer-Nameki, C. Tamarit and J. Wacker for helpful comments on our work. We are supported by the US DOE under contract number DE-AC02-76SF00515 at SLAC. NR 44 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 113 DI 10.1007/JHEP08(2011)113 PG 24 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200048 ER PT J AU Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hoch, M Hormann, N Hrubec, J Jeitler, M Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rahbaran, B Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Trauner, C Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Bansal, S Benucci, L De Wolf, EA Janssen, X Luyckx, S Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Blekman, F Blyweert, S D'Hondt, J Suarez, RG Kalogeropoulos, A Maes, M Olbrechts, A Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Raval, A Thomas, L Vander Marcken, G Vander Velde, C Vanlaer, P Adler, V Cimmino, A Costantini, S Grunewald, M Klein, B Lellouch, J Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L Gil, EC De Jeneret, JD Delaere, C Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Nuttens, C Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Brito, L Damiao, DD Pol, ME Souza, MHG Alda, WL Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A Bernardes, CA Dias, FA Costa, TD Tomei, TRFP Gregores, EM Lagana, C Marinho, F Mercadante, PG Novaes, SF Padula, SS Darmenov, N Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vutova, M Dimitrov, A Hadjiiska, R Karadzhinova, A Kozhuharov, V Litov, L Mateev, M Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Meng, X Tao, J Wang, J Wang, J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AF Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Kovac, M Brigljevic, V Duric, S Kadija, K Luetic, J Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Kamel, AE Khali, S Mahmoud, MA Radi, A Hektor, A Kadastik, M Mfintel, M Raidal, M Rebane, L Tiko, A Azzolini, V Eerola, P Fedi, G Voutilainen, M Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Karjalainen, A Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Les, JM Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Benhabib, L Bianchini, L Bluj, M Broutin, C Busson, P Chariot, C Dahms, T Dobrzynski, L Elgammal, S de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beauceron, S Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chasserat, J Chierici, R Contardo, D Depasse, P El Mamouni, H Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Viret, S Lomidze, D Anagnostou, G Beranek, S Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Zhukov, V Ata, M Dietz-Laursonn, E Erdmann, M Hebbeker, T Heidemann, C Hinzmann, A Hoepfner, K Klimkovich, T Klingebiel, D Kreuzer, P Lanske, D Lingemann, J Magass, C Merschmeyer, M Meyer, A Papacz, P Pieta, H Reithler, H Schmitz, SA Sonnenschein, L Steggemann, J Teyssier, D Bontenackels, M Cherepanov, V Davids, M Flugge, G Geenen, H Giffels, M Ahmad, WH Hoehle, F Kargoll, B Kress, T Kuessel, Y Linn, A Nowack, A Perchalla, L Pooth, O Rennefeld, J Sauerland, P Stahl, A Tornier, D Zoeller, MH Martin, MA Behrenhoff, W Behrens, U Bergholz, M Bethani, A Borras, K Cakir, A Campbell, A Castro, E Dammann, D Eckerlin, G Eckstein, D Flossdorf, A Flucke, G Geiser, A Hauk, J Jung, H Kasemann, M Katsas, P Kleinwort, C Kluge, H Knutsson, A Kramer, M Krucker, D Kuznetsova, E Lange, W Lohmann, W Mankel, R Marienfeld, M Melzer-Pellmann, IA Meyer, AB Mnich, J Mussgiller, A Olzem, J Petrukhin, A Pitzl, D Raspereza, A Rosin, M Schmidt, R Schoerner-Sadenius, T Sen, N Spiridonov, A Stein, M Tomaszewska, J Walsh, R Wissing, C Autermann, C Blobel, V Bobrovskyi, S Draeger, J Enderle, H Gebbert, U Gorner, M Hermanns, T Kaschube, K Kaussen, G Kirschenmann, H Klanner, R Lange, J Mura, B Naumann-Emme, S Nowak, F Pietsch, N Sander, C Schettler, H Schleper, P Schlieckau, E Schroder, M Schum, T Stadie, H Steinbruck, G Thomsen, J Barth, C Bauer, J Berger, J Buege, V Chwalek, T De Boer, W Dierlamm, A Dirkes, G Feindt, M Gruschke, J Hackstein, C Hartmann, F Heinrich, M Held, H Hoffmann, KH Hone, S Katkov, I Komaragiri, JR Kuhr, T Martschei, D Mueller, S Muller, T Niegel, M Oberst, O Oehler, A Ott, J Peiffer, T Quast, G Rabbertz, K Ratnikov, F Ratnikova, N Renz, M Rocker, S Saout, C Scheurer, A Schieferdecker, P Schilling, FP Schmanau, M Schott, G Simonis, HJ Stober, FM Troendle, D Wagner-Kuhr, J Weiler, T Zeise, M Ziebarth, EB Daskalakis, G Geralis, T Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I 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Gershtein, Y. Gray, R. Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Eusebi, R. Flanagan, W. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Osipenkov, I. Pakhotin, Y. Perloff, A. Safonov, A. Sengupta, S. Suarez, I. Tatarinov, A. Toback, D. Akchurin, N. Bardak, C. Damgov, J. Dudero, P. R. Jeong, C. Kovitanggoon, K. Lee, S. W. Libeiro, T. Mane, P. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Issah, M. Johns, W. Johnston, C. Kurt, P. Maguire, C. Melo, A. Sheldon, P. Snook, B. Tuo, S. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Cox, B. Francis, B. Goadhouse, S. Goodell, J. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Wood, J. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Don, C. Kottachchi Kankanamge Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Belknap, D. Bellinger, J. N. Carlsmith, D. Cepeda, M. Dasu, S. Efron, J. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Herve, A. Klabbers, P. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Loveless, R. Mohapatra, A. Ojalvo, I. Parker, W. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at root s(NN)=2.76 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID HEAVY-ION COLLISIONS; NUCLEAR COLLISIONS; MODEL; LHC; QCD AB A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76 TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density, dN(ch)/d eta vertical bar(eta=0), for head-on collisions is found to be 1612 +/- 55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented. C1 [Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. 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A.; Brito, L.; De Jesus Damiao, D.; Pol, M. E.; Souza, M. H. G.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil. [Alda Junior, W. L.; Carvalho, W.; Da Costa, E. M.; De Oliveira Martins, C.; Fonseca De Souza, S.; Mundim, L.; Nogima, H.; Oguri, V.; Prado Da Silva, W. L.; Santoro, A.; Silva Do Amaral, S. M.; Sznajder, A.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil. [Bernardes, C. A.; Dias, F. A.; Dos Anjos Costa, T.; Fernandez Perez Tomei, T. R.; Gregores, E. M.; Lagana, C.; Marinho, F.; Mercadante, P. G.; Novaes, S. F.; Padula, Sandra S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil. [Darmenov, N.; Genchev, V.; Iaydjiev, P.; Piperov, S.; Rodozov, M.; Stoykova, S.; Sultanov, G.; Tcholakov, V.; Trayanov, R.; Vutova, M.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria. [Dimitrov, A.; Hadjiiska, R.; Karadzhinova, A.; Kozhuharov, V.; Litov, L.; Mateev, M.; Pavlov, B.; Petkov, P.] Univ Sofia, BU-1126 Sofia, Bulgaria. [Bian, J. G.; Chen, G. M.; Chen, H. S.; Jiang, C. H.; Liang, D.; Liang, S.; Meng, X.; Tao, J.; Wang, J.; Wang, J.; Wang, X.; Wang, Z.; Xiao, H.; Xu, M.; Zang, J.; Zhang, Z.] Inst High Energy Phys, Beijing 100039, Peoples R China. [Ban, Y.; Guo, S.; Guo, Y.; Li, W.; Mao, Y.; Qian, S. J.; Teng, H.; Zhu, B.; Zou, W.] Peking Univ, State Key Lab Nucl Phys & Tech, Beijing 100871, Peoples R China. [Cabrera, A.; Gomez Moreno, B.; Ocampo Rios, A. A.; Osorio Oliveros, A. F.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia. [Antunovic, Z.; Dzelalija, M.; Kovac, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Luetic, J.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.] Univ Cyprus, Nicosia, Cyprus. [Finger, M.; Finger, M., Jr.] Charles Univ Prague, Prague, Czech Republic. [Assran, Y.; Kamel, A. Ellithi; Khali, S.; Mahmoud, M. A.; Radi, A.] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt. [Hektor, A.; Kadastik, M.; Mfintel, M.; Raidal, M.; Rebane, L.; Tiko, A.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.; Fedi, G.; Voutilainen, M.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Czellar, S.; Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Karjalainen, A.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] IN2P3 CNRS, Lab Annecy le Vieux Phys Particules, Annecy Le Vieux, France. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Les, J. Male; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Baffioni, S.; Beaudette, F.; Benhabib, L.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Chariot, C.; Dahms, T.; Dobrzynski, L.; Elgammal, S.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.] IN2P3 CNRS, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France. [Agram, J.-L.; Andrea, J.; Bloch, D.; Bodin, D.; Brom, J-M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J-C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A-C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, CNRS IN2P3, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France. [Fassi, F.; Mercier, D.] IN2P3, Inst Natl Phys Nucl & Phys Particules, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beauceron, S.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chasserat, J.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.; Viret, S.] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France. [Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia. [Anagnostou, G.; Beranek, S.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.; Zhukov, V.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Dietz-Laursonn, E.; Erdmann, M.; Hebbeker, T.; Heidemann, C.; Hinzmann, A.; Hoepfner, K.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Lingemann, J.; Magass, C.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Cherepanov, V.; Davids, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Hoehle, F.; Kargoll, B.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Bethani, A.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Hauk, J.; Jung, H.; Kasemann, M.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kraemer, M.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Petrukhin, A.; Pitzl, D.; Raspereza, A.; Rosin, M.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Spiridonov, A.; Stein, M.; Tomaszewska, J.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Goerner, M.; Hermanns, T.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schroeder, M.; Schum, T.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Hone, S.; Katkov, I.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Roecker, S.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schmanau, M.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Saoulidou, N.; Stiliaris, E.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdu, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Choudhary, B. C.; Gupta, P.; Kumar, A.; Kumar, A.; Malhotra, S.; Naimuddin, M.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Jain, S.; Jain, S.; Khurana, R.; Sarkar, S.] Saha Inst Nucl Phys, Kolkata, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mathew, T.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Hesari, H.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Slivestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Nuzzo, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Fabozzi, F.; Buontempo, S.; Iorio, A. O. M.; Lista, L.; Merola, M.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Sigamani, M.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Pandolfi, F.; Rahatlou, S.; Rovelli, C.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Maselli, S.; Migliore, E.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Migliore, E.; Monaco, V.; Pelliccioni, M.; Potenza, A.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Orientale Novara Univ Piemonte, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Marone, M.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Marone, M.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.; Nam, S. K.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Ro, S. R.; Son, D. C.; Son, T.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Univ & Elementary Particles, Kwangju, South Korea. [Jo, H. Y.] Konkuk Univ, Seoul, South Korea. [Choi, S.; Gyun, D.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Seo, E.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Cho, Y.; Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Polujanskas, M.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Martinez-Ortega, J.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Ansari, M. H.; Asghar, M. I.; Hoorani, H. R.; Khalid, S.; Khan, W. A.; Khurshid, T.; Qazi, S.; Shah, M. A.; Shoaib, M.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Pela, J.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Bunin, P.; Gavrilenko, M.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Laney, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Maeshima, K.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Erofeeva, M.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Zhukov, V.; Belyaev, A.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Mesyats, G.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Darmenov, N.; Genchev, V.; Iaydjiev, P.; Foudas, C.; Hajdu, C.; Sikler, F.; Mohanty, A. K.; De Filippis, N.; Fasanella, D.; Tropiano, A.; Benaglia, A.; Gennai, S.; Massironi, A.; Montoya, C. A. Carrillo; Buontempo, S.; Iorio, A. O. M.; Bacchetta, N.; Nespolo, M.; Tosi, M.; Lucaroni, A.; Taroni, S.; Tonelli, G.; Venturi, A.; Del Re, D.; Grassi, M.; Gallinaro, M.; Pela, J.; Kaftanov, V.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guida, R.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Quertenmont, L.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Roland, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Silva, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoye, M.; Tsirou, A.; Vichoudis, P.; Woehri, H. K.; Worm, S. D.; Zeuner, W. D.; Kovalskyi, D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Caminada, L.; Marchica, C.; Naegeli, C.] Paul Scherrer Inst, Villigen, Switzerland. [Baeni, L.; Bortignon, P.; Caminada, L.; Casal, B.; Chanon, N.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Milenovic, P.; Moortgat, F.; Naegeli, C.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Starodumov, A.; Stieger, B.; Takahashi, M.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Jaeger, A.; Mejias, B. Millan; Otiougova, P.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wan, X.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yalvac, M.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Jarvis, M.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA. [Henderson, C.] Univ Alabama, Tuscaloosa, AL USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Breedon, R.; Breto, G.; Sanchez, M. Calderon De La Barca; Chauhan, S.; Chertok, M.; Conway, J.; Conway, R.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Houtz, R.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Mall, O.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Rutherford, B.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, H.; Long, O. R.; Luthra, A.; Nguyen, H.; Paramesvaran, S.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wfirthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Mullin, S. D.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.; West, C.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dias, F. A.; Dubinin, M.; Spiropulu, M.; Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Henriksson, K.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Liu, Y.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Jindariani, S.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pivarski, J.; Pordes, R.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Myeonghun, P.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Lton, J. Ye; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Gaultney, V.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Ozturk, S.; Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J-P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Iran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Iii, R. P. Kenny; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kim, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y-J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Franzoni, G.; Gude, A.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.; Turkewitz, J.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Jindal, P.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Mucia, N.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Brinkerhoff, A.; Hildreth, M.; Jessop, C.; Karmgard, D. 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RI Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Gerbaudo, Davide/J-4536-2012; Cakir, Altan/P-1024-2015; Matorras, Francisco/I-4983-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Flix, Josep/G-5414-2012; Ozdemir, Kadri/P-8058-2014; Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Sznajder, Andre/L-1621-2016; Vilela Pereira, Antonio/L-4142-2016; Sen, Sercan/C-6473-2014; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; My, Salvatore/I-5160-2015; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Leonidov, Andrey/M-4440-2013; Andreev, Vladimir/M-8665-2015; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; 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Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Stahl, Achim/E-8846-2011; Mercadante, Pedro/K-1918-2012; Della Ricca, Giuseppe/B-6826-2013; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Alves, Gilvan/C-4007-2013; Zalewski, Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Markina, Anastasia/E-3390-2012; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014 OI Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Matorras, Francisco/0000-0003-4295-5668; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Sznajder, Andre/0000-0001-6998-1108; Vilela Pereira, Antonio/0000-0003-3177-4626; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; My, Salvatore/0000-0002-9938-2680; Rovelli, Tiziano/0000-0002-9746-4842; Calvo Alamillo, Enrique/0000-0002-1100-2963; Paulini, Manfred/0000-0002-6714-5787; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ferguson, Thomas/0000-0001-5822-3731; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Katkov, Igor/0000-0003-3064-0466; Tomei, Thiago/0000-0002-1809-5226; Krammer, Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192; Focardi, Ettore/0000-0002-3763-5267; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Stahl, Achim/0000-0002-8369-7506; Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330 FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland; ME; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU (Korea); LAS (Lithuania); CINVES-TAV; CONACYT; SEP; UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST; MAE (Russia); MSTD (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA); Marie-Curie programme; European Research Council (European Union); Leventis Foundation; A. P. Sloan Foundation; Alexander von Humboldt Foundation; Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVES-TAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA).; Individuals have received support from the Marie-Curie programme and the European Research Council (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy); the Belgian Federal Science Policy Office; the Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); and the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium). NR 35 TC 0 Z9 0 U1 1 U2 42 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 141 DI 10.1007/JHEP08(2011)141 PG 34 WC Physics, Particles & Fields SC Physics GA 820JH UT WOS:000294901200018 ER PT J AU Biswas, K Good, MS Roberts, KC Subramanian, MA Hendricks, TJ AF Biswas, Krishnendu Good, Morris S. Roberts, Kamandi C. Subramanian, M. A. Hendricks, Terry J. TI Thermoelectric and structural properties of high-performance In-based skutterudites for high-temperature energy recovery SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID POWER-GENERATION; ELASTIC-MODULI; EFFICIENCY; MERIT AB The temperature-dependent thermoelectric (TE) and structural properties of n-type filled skutterudites were measured from 300-625 K. In(0.2)Co(4)Sb(12), and In(0.2)Ce(0.05)Yb(0.1)Co(4)Sb(12) exhibited figure of merit (ZT) values as high as 1.2 at 625 K and In(0.2)Ce(0.15)Co(4)Sb(12) showed ZT values of similar to 1.4 at 625 K. The room temperature Young's modulus, Poisson's ratio, and coefficient of thermal expansion (at 298-673 K) of In(0.2)Ce(0.15)Co(4)Sb(12), In(0.2)Co(4)Sb(12), and In(0.2)Ce(0.05)Yb(0.1)Co(4)Sb(12) compositions were found to be lower than that for the unfilled Co(4)Sb(12) skutterudite material. It was discovered that thermal cycling of n-type In(0.15)Ce(0.1)Co(4)Sb(12) and In(0.2)Ce(0.17)Co(4)Sb(12) materials from 323-673 K (200 cycles) actually increased their power factors by 13.6-36% at 510-525 K without appreciably changing the Young's modulus or the Poisson's ratio. The transport and structural properties characterized in this work are critical to transitioning these materials into operating TE devices and systems. C1 [Hendricks, Terry J.] MicroProd Breakthrough Inst, Pacific NW Natl Lab, Corvallis, OR 97330 USA. [Biswas, Krishnendu; Subramanian, M. A.] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA. [Good, Morris S.; Roberts, Kamandi C.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Hendricks, TJ (reprint author), MicroProd Breakthrough Inst, Pacific NW Natl Lab, Corvallis, OR 97330 USA. EM terry.hendricks@pnl.gov RI Biswas, Krishnendu/C-1076-2013 FU U.S. Department of Energy (DOE), Office of Vehicle Technology (OVT); Propulsion Materials Technology Manager, DOE-OVT; Thermoelectric Technology Manager, DOE-OVT FX The authors sincerely thank the U.S. Department of Energy (DOE), Office of Vehicle Technology (OVT), Jerry Gibbs, Propulsion Materials Technology Manager, DOE-OVT, and John Fairbanks, Thermoelectric Technology Manager, DOE-OVT, for their support of this research and development. NR 26 TC 10 Z9 10 U1 1 U2 7 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD AUG PY 2011 VL 26 IS 15 BP 1827 EP 1835 DI 10.1557/jmr.2011.163 PG 9 WC Materials Science, Multidisciplinary SC Materials Science GA 836BC UT WOS:000296080700011 ER PT J AU Zhou, J Jie, Q Wu, LJ Dimitrov, I Li, Q Shi, X AF Zhou, Juan Jie, Qing Wu, Lijun Dimitrov, Ivo Li, Qiang Shi, Xun TI Nanostructures and defects in nonequilibrium-synthesized filled skutterudite CeFe4Sb12 SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID THERMOELECTRIC PERFORMANCE AB We studied nanoprecipitates (NPs) and defects in p-type filled skutterudite CeFe4Sb12 prepared by a nonequilibrium melt spinning plus spark plasma sintering method using transmission electron microscopy. NPs with mostly spherical shapes and different sizes (from several nanometers to several tens of nanometers) have been observed. Among these, two types of NPs were most commonly observed, Sb-rich superlattices and CeSb2. The Sb-rich superlattices with a periodicity of about 3.6 nm were induced by the ordering of excessive Sb atoms along the c-direction. These NPs typically share coherent interfaces with the surrounding matrix and induce anisotropic strain fields in the matrix. NPs with compositions close to CeSb2, on the other hand, have been shown to be much larger in size (similar to 30 nm) and have orthorhombic structures. Various defects were typically observed on the interfaces between these NPs and the matrix. The strain fields induced by these NPs are less distinct, possibly because part of the strain has been released by defect formation. C1 [Zhou, Juan; Jie, Qing; Wu, Lijun; Dimitrov, Ivo; Li, Qiang] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Shi, Xun] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China. RP Li, Q (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. EM qiangli@bnl.gov RI shi, xun/B-4499-2009; Jie, Qing/H-3780-2011; Jie, Qing/N-8673-2013 OI shi, xun/0000-0002-3806-0303; FU U.S. Department of Energy, Office of Basic Energy Science, Materials Science and Engineering Division [DE-AC02-98CH10886]; Brookhaven National Laboratory; General Motors Corporation FX We thank Dr. Jihui Yang of Materials and Processes Laboratory, General Motors R&D Center for generous help with sample preparation. We thank the Center for Functional Nanomaterials, Brookhaven National Laboratory for generous support in using its facilities. The work at Brookhaven National Laboratory was primarily supported by the U.S. Department of Energy, Office of Basic Energy Science, Materials Science and Engineering Division, under Contract No. DE-AC02-98CH10886. This research was also partly supported by the Cooperative Research and Development Agreements (CRADA) between Brookhaven National Laboratory (Q. Li) and General Motors Corporation (J.H. Yang). NR 17 TC 5 Z9 5 U1 1 U2 22 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD AUG PY 2011 VL 26 IS 15 BP 1842 EP 1847 DI 10.1557/jmr.2011.79 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA 836BC UT WOS:000296080700013 ER PT J AU Lin, QY Tepfer, S Heideman, C Mortensen, C Nguyen, N Zschack, P Beekman, M Johnson, DC AF Lin, Qiyin Tepfer, Sara Heideman, Colby Mortensen, Clay Ngoc Nguyen Zschack, Paul Beekman, Matt Johnson, David C. TI Influence of selenium vapor postannealing on the electrical transport properties of PbSe-WSe2 nanolaminates SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID MISFIT-LAYERED COMPOUNDS; HEAT-TREATMENT AB The influence of annealing time and annealing temperature under controlled partial pressure of selenium on the in-plane electrical transport properties of specimens of [(PbSe)(0.99)](1)[WSe2](1) turbostratic nanolaminates was studied. The annealing treatments were found to be very effective in reducing carrier concentrations and improving carrier mobility in the annealed films, which is attributed to the reduction of compositional and structural defects. As a result, room temperature Hall mobilities greater than 60 cm(2) V-1.s(-1) are observed in spite of the small in-plane domain sizes (on the order of 10 nm) that are related to the turbostratic disorder. The technique appears promising for decreasing the concentration of kinetically trapped defects in these and related self-assembled nanostructures, a key challenge to evaluating the expected potential for controlling electrical and thermal transport properties via designed nanostructure in these and related materials. C1 [Lin, Qiyin; Tepfer, Sara; Heideman, Colby; Mortensen, Clay; Ngoc Nguyen; Beekman, Matt; Johnson, David C.] Univ Oregon, Dept Chem, Eugene, OR 97403 USA. [Zschack, Paul] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Johnson, DC (reprint author), Univ Oregon, Dept Chem, Eugene, OR 97403 USA. EM davej@uoregon.edu RI Beekman, Matt/I-4470-2014 OI Beekman, Matt/0000-0001-9694-2286 FU Office of Naval Research [N0014-07-1-0358]; Oregon Nanoscience and Microtechnologies Institute; Army Research Laboratory; National Science Foundation [DGE-0549503]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The authors thank Ms. Jenia Karapetrova for technical assistance during collection of the synchrotron XRD data and acknowledge Dr. Harald Bottner for useful discussions concerning the vapor annealing apparatus. This work was supported through the Office of Naval Research (N0014-07-1-0358), the Oregon Nanoscience and Microtechnologies Institute, and the Army Research Laboratory. Coauthors C. Mortensen and C. Heideman were supported by the National Science Foundation through the Integrative Graduate Education and Research Traineeship (IGERT) (Grant No. DGE-0549503). The use of the APS was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 17 TC 11 Z9 11 U1 2 U2 19 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD AUG PY 2011 VL 26 IS 15 BP 1866 EP 1871 DI 10.1557/jmr.2011.77 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA 836BC UT WOS:000296080700017 ER PT J AU Kirkham, M Majsztrik, P Skoug, E Morelli, D Wang, H Porter, WD Payzant, EA Lara-Curzio, E AF Kirkham, Melanie Majsztrik, Paul Skoug, Eric Morelli, Donald Wang, Hsin Porter, Wallace D. Payzant, E. Andrew Lara-Curzio, Edgar TI High-temperature order/disorder transition in the thermoelectric Cu3SbSe3 SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID CU3BIS3 AB We report the results of an investigation on the structural evolution of a potential new thermoelectric material, Cu3SbSe3, as a function of temperature from 25 to 390 degrees C. From high-temperature x-ray diffraction data, the refined lattice parameters were seen to change nonlinearly, but continuously, with temperature, with an increased rate of thermal expansion in the a and b lattice parameters from around 125 degrees C to 175 degrees C and negative thermal expansion in the c axis from around 100 degrees C to 175 degrees C. Crystallographic charge flipping analysis indicated an increase in the disorder of the copper cations with temperature. This reversible order/disorder phase transition in Cu3SbSe3 affects the transport properties, as evidenced by thermal conductivity measurements, which change from negative to positive slope at the transition temperature. This structural change in Cu3SbSe3 has implications for its potential use in thermoelectric generators. C1 [Kirkham, Melanie; Majsztrik, Paul; Wang, Hsin; Porter, Wallace D.; Payzant, E. Andrew; Lara-Curzio, Edgar] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Skoug, Eric; Morelli, Donald] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. RP Kirkham, M (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM kirkhammj@ornl.gov RI Payzant, Edward/B-5449-2009; Kirkham, Melanie/B-6147-2011; Wang, Hsin/A-1942-2013 OI Payzant, Edward/0000-0002-3447-2060; Kirkham, Melanie/0000-0001-8411-9751; Wang, Hsin/0000-0003-2426-9867 FU National Science Foundation [NSH-CBET-0754029]; Center on Revolutionary Materials for Solid State Energy Conversion, an Energy Frontier Research Center; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001054]; Oak Ridge National Laboratory's High Temperature Materials Laboratory; U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy FX Sample synthesis at Michigan State University was supported by the National Science Foundation under award number NSH-CBET-0754029. Characterization research at Oak Ridge National Laboratory was sponsored by the Center on Revolutionary Materials for Solid State Energy Conversion, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001054 and by Oak Ridge National Laboratory's High Temperature Materials Laboratory, sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program. NR 9 TC 15 Z9 15 U1 1 U2 43 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD AUG PY 2011 VL 26 IS 15 BP 2001 EP 2005 DI 10.1557/jmr.2011.43 PG 5 WC Materials Science, Multidisciplinary SC Materials Science GA 836BC UT WOS:000296080700036 ER PT J AU Larbalestier, D Canfield, PC AF Larbalestier, David Canfield, Paul C. TI Superconductivity at 100-Where we've been and where we're going SO MRS BULLETIN LA English DT Article AB Basic scientific questions and tantalizingly revolutionary applications have been intertwined throughout the 100-year history of superconductivity. Within two years of his discovery of superconductivity in 1911, H. Kamerlingh Onnes imagined high-field applications for superconducting wires, only to have his hopes dashed by limitations of upper critical field and critical current density. Over the next 98 years, a scientific tango would play out repeatedly between (1) discovering and understanding new superconductors, often with higher transition temperature values and (2) improving these materials' upper critical field and critical current values while keeping manufacturing costs down. In this article, we take stock of where the field currently stands, with mature, developing, and recently discovered superconductors, and try to give a sense of where it may be going. C1 [Larbalestier, David] Florida State Univ, Ctr Appl Superconduct, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. [Larbalestier, David] Florida State Univ, Dept Mech Engn, Tallahassee, FL 32310 USA. [Canfield, Paul C.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Canfield, Paul C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Larbalestier, D (reprint author), Florida State Univ, Ctr Appl Superconduct, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. EM larbalestier@asc.magnet.fsu.edu; canfield@ameslab.gov RI Canfield, Paul/H-2698-2014; Larbalestier, David/B-2277-2008 OI Larbalestier, David/0000-0001-7098-7208 NR 18 TC 0 Z9 0 U1 2 U2 17 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0883-7694 EI 1938-1425 J9 MRS BULL JI MRS Bull. PD AUG PY 2011 VL 36 IS 8 BP 590 EP 595 DI 10.1557/mrs.2011.174 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 836CI UT WOS:000296085400016 ER PT J AU Sefat, AS Singh, DJ AF Sefat, Athena S. Singh, David J. TI Chemistry and electronic structure of iron-based superconductors SO MRS BULLETIN LA English DT Article ID LAYERED QUATERNARY COMPOUND; 43 K; PRESSURE; BA0.6K0.4FE2AS2; LAO1-XFXFEAS; TEMPERATURE; LIFEAS; GAPS AB The solid state provides a richly varied fabric for intertwining chemical bonding, electronic structure, and magnetism. The discovery of superconductivity in iron pnictides and chalcogenides has revealed new aspects of this interplay, especially involving magnetism and superconductivity. Moreover, it has challenged prior thinking about high-temperature superconductivity by providing a set of materials that differ in many crucial aspects from the previously known cuprate superconductors. Here we review some of what is known about the superconductivity and its interplay with magnetism, chemistry, and electronic structure in Fe-based superconductors. C1 [Sefat, Athena S.; Singh, David J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Sefat, AS (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM sefata@ornl.gov; singhdj@ornl.gov RI Mushiake, Maki/A-2925-2012; Singh, David/I-2416-2012; Sefat, Athena/R-5457-2016 OI Sefat, Athena/0000-0002-5596-3504 FU U.S. Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering FX This work was supported by the U.S. Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering. NR 95 TC 25 Z9 25 U1 0 U2 20 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0883-7694 J9 MRS BULL JI MRS Bull. PD AUG PY 2011 VL 36 IS 8 BP 614 EP 619 DI 10.1557/mrs.2011.175 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 836CI UT WOS:000296085400020 ER PT J AU Ni, N Bud'ko, SL AF Ni, Ni Bud'ko, Sergey L. TI Tuning the ground state of BaFe2As2: Phase diagrams and empirical trends SO MRS BULLETIN LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; IRON; TRANSITION; PRESSURE; METAL AB We present a brief review of the phase diagrams of the transition metal, electron-doped BaFe2As2 systems and a comparison between them. This article also reviews the phase diagrams of hole-and isoelectronic-doped BaFe2As2, as well as BaFe2As2 under pressure. Empirical rules on the conditions necessary to induce superconductivity in this material are outlined. Evidence for multiple Lifshitz transitions in Co-doped BaFe2As2 and possible connections to superconductivity are also discussed. C1 [Ni, Ni] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. [Bud'ko, Sergey L.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Ni, N (reprint author), Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. EM nni@princeton.edu; budko@ameslab.gov FU AFOSR MURI on superconductivity; U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering; U.S. Department of Energy by Iowa State University [DE-AC02-07CH11358]; State of Iowa through Iowa State University FX We would like to thank P.C. Canfield for countless fruitful discussions, adult supervision, and providing a local example of how to practice Gonzo science. Collaboration and support of the members of Novel Materials and Ground States Group, Condensed Matter Physics Program and Division of Materials Sciences and Engineering at Ames Laboratory/Iowa State University is greatly appreciated. N. Ni would like to thank R.J. Cava for discussions and the support by the AFOSR MURI on superconductivity. Work at the Ames Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. S.L.B. was supported, in part, by the State of Iowa through Iowa State University. We are grateful to Chang Liu for providing us with a modified version of Figure 4 from Reference 41 and stimulating endless discussions. NR 50 TC 14 Z9 14 U1 0 U2 15 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0883-7694 J9 MRS BULL JI MRS Bull. PD AUG PY 2011 VL 36 IS 8 BP 620 EP 625 DI 10.1557/mrs.2011.178 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 836CI UT WOS:000296085400021 ER PT J AU Aalseth, CE Aguayo, E Amman, M Avignone, FT Back, HO Bai, X Barabash, AS Barbeau, PS Bergevin, M Bertrand, FE Boswell, M Brudanin, V Bugg, W Burritt, TH Busch, M Capps, G Chan, YD Collar, JI Cooper, RJ Creswick, R Detwiler, JA Diaz, J Doe, PJ Efremenko, Y Egorov, V Ejiri, H Elliott, SR Ely, J Esterline, J Farach, H Fast, JE Fields, N Finnerty, P Fraenkle, FM Gehman, VM Giovanetti, GK Green, M Guiseppe, VE Gusey, K Hallin, AL Harper, GC Hazama, R Henning, R Hime, A Hong, H Hoppe, EW Hossbach, TW Howard, S Howe, MA Johnson, RA Keeter, KJ Keillor, M Keller, C Kephart, JD Kidd, MF Knecht, A Kochetov, O Konovalov, SI Kouzes, RT LaRoque, BH Leviner, L Loach, JC Luke, PN MacMullin, S Marino, MG Martin, RD Medlin, D Mei, DM Miley, HS Miller, ML Mizouni, L Myers, AW Nomachi, M Orrell, JL Peterson, D Phillips, DG Poon, AWP Perevozchikov, O Perumpilly, G Prior, G Radford, DC Reid, D Rielage, K Robertson, RGH Rodriguez, L Ronquest, MC Salazar, H Schubert, AG Shima, T Shirchenko, M Sobolev, V Steele, D Strain, J Swift, G Thomas, K Timkin, V Tornow, W Van Wechel, TD Vanyushin, I Varner, RL Vetter, K Vorren, K Wilkerson, JF Wolfe, BA Xiang, W Yakushev, E Yaver, H Young, AR Yu, CH Yumatov, V Zhang, C AF Aalseth, C. E. Aguayo, E. Amman, M. Avignone, F. T., III Back, H. O. Bai, X. Barabash, A. S. Barbeau, P. S. Bergevin, M. Bertrand, F. E. Boswell, M. Brudanin, V. Bugg, W. Burritt, T. H. Busch, M. Capps, G. Chan, Y-D Collar, J. I. Cooper, R. J. Creswick, R. Detwiler, J. A. Diaz, J. Doe, P. J. Efremenko, Yu Egorov, V. Ejiri, H. Elliott, S. R. Ely, J. Esterline, J. Farach, H. Fast, J. E. Fields, N. Finnerty, P. Fraenkle, F. M. Gehman, V. M. Giovanetti, G. K. Green, M. Guiseppe, V. E. Gusey, K. Hallin, A. L. Harper, G. C. Hazama, R. Henning, R. Hime, A. Hong, H. Hoppe, E. W. Hossbach, T. W. Howard, S. Howe, M. A. Johnson, R. A. Keeter, K. J. Keillor, M. Keller, C. Kephart, J. D. Kidd, M. F. Knecht, A. Kochetov, O. Konovalov, S. I. Kouzes, R. T. LaRoque, B. H. Leviner, L. Loach, J. C. Luke, P. N. MacMullin, S. Marino, M. G. Martin, R. D. Medlin, D. Mei, D-M Miley, H. S. Miller, M. L. Mizouni, L. Myers, A. W. Nomachi, M. Orrell, J. L. Peterson, D. Phillips, D. G., II Poon, A. W. P. Perevozchikov, O. Perumpilly, G. Prior, G. Radford, D. C. Reid, D. Rielage, K. Robertson, R. G. H. Rodriguez, L. Ronquest, M. C. Salazar, H. Schubert, A. G. Shima, T. Shirchenko, M. Sobolev, V. Steele, D. Strain, J. Swift, G. Thomas, K. Timkin, V. Tornow, W. Van Wechel, T. D. Vanyushin, I. Varner, R. L. Vetter, K. Vorren, K. Wilkerson, J. F. Wolfe, B. A. Xiang, W. Yakushev, E. Yaver, H. Young, A. R. Yu, C-H Yumatov, V. Zhang, C. TI The MAJORANA Experiment SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento ID GERMANIUM DETECTOR AB The MAJORANA Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in Ge-76. Initially, MAJORANA aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype DEMONSTRATOR module are presented. C1 [Guiseppe, V. E.; Keller, C.; Mei, D-M; Perevozchikov, O.; Perumpilly, G.; Thomas, K.; Xiang, W.; Zhang, C.] Univ S Dakota, Dept Earth Sci & Phys, Vermillion, SD 57069 USA. [Aalseth, C. E.; Aguayo, E.; Ely, J.; Fast, J. E.; Hoppe, E. W.; Hossbach, T. W.; Keillor, M.; Kephart, J. D.; Kouzes, R. T.; Miley, H. S.; Mizouni, L.; Myers, A. W.; Orrell, J. L.; Reid, D.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Amman, M.; Bergevin, M.; Chan, Y-D; Detwiler, J. A.; Loach, J. C.; Luke, P. N.; Martin, R. D.; Poon, A. W. P.; Prior, G.; Vetter, K.; Yaver, H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Avignone, F. T., III; Creswick, R.; Farach, H.; Mizouni, L.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. [Avignone, F. T., III; Bertrand, F. E.; Capps, G.; Cooper, R. J.; Radford, D. C.; Varner, R. L.; Wilkerson, J. F.; Yu, C-H] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Back, H. O.; Leviner, L.; Young, A. R.] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. [Back, H. O.; Busch, M.; Esterline, J.; Finnerty, P.; Fraenkle, F. M.; Giovanetti, G. K.; Green, M.; Henning, R.; Howe, M. A.; Leviner, L.; MacMullin, S.; Phillips, D. G., II; Strain, J.; Swift, G.; Tornow, W.; Vorren, K.; Wilkerson, J. F.; Young, A. R.] Triangle Univ Nucl Lab, Durham, NC 27706 USA. [Bai, X.; Hong, H.; Howard, S.; Medlin, D.; Sobolev, V.] S Dakota Sch Mines & Technol, Rapid City, SD USA. [Barabash, A. S.; Konovalov, S. I.; Vanyushin, I.; Yumatov, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Barbeau, P. S.; Collar, J. I.; Fields, N.] Univ Chicago, Dept Phys, Chicago, IL 60637 USA. [Boswell, M.; Elliott, S. R.; Gehman, V. M.; Hime, A.; Kidd, M. F.; LaRoque, B. H.; Rielage, K.; Rodriguez, L.; Ronquest, M. C.; Salazar, H.; Steele, D.] Los Alamos Natl Lab, Los Alamos, NM USA. [Brudanin, V.; Egorov, V.; Gusey, K.; Kochetov, O.; Shirchenko, M.; Timkin, V.; Yakushev, E.] Joint Inst Nucl Res, Dubna, Russia. [Bugg, W.; Efremenko, Yu] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Burritt, T. H.; Diaz, J.; Doe, P. J.; Harper, G. C.; Johnson, R. A.; Knecht, A.; Marino, M. G.; Miller, M. L.; Peterson, D.; Robertson, R. G. H.; Schubert, A. G.; Van Wechel, T. D.; Wolfe, B. A.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. [Burritt, T. H.; Diaz, J.; Doe, P. J.; Harper, G. C.; Johnson, R. A.; Knecht, A.; Marino, M. G.; Miller, M. L.; Peterson, D.; Robertson, R. G. H.; Schubert, A. G.; Van Wechel, T. D.; Wolfe, B. A.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Busch, M.; Esterline, J.; Swift, G.; Tornow, W.] Duke Univ, Dept Phys, Durham, NC 27706 USA. [Ejiri, H.; Hazama, R.; Nomachi, M.; Shima, T.] Osaka Univ, Nucl Phys Res Ctr, Osaka, Japan. [Ejiri, H.; Hazama, R.; Nomachi, M.; Shima, T.] Osaka Univ, Dept Phys, Osaka, Japan. [Finnerty, P.; Fraenkle, F. M.; Giovanetti, G. K.; Green, M.; Henning, R.; Howe, M. A.; MacMullin, S.; Phillips, D. G., II; Strain, J.; Vorren, K.; Wilkerson, J. F.] Univ N Carolina, Dept Phys, Chapel Hill, NC USA. [Hallin, A. L.] Univ Alberta, Ctr Particle Phys, Edmonton, AB, Canada. [Keeter, K. J.] Black Hills State Univ, Dept Phys, Spearfish, SD 57799 USA. [Vetter, K.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. RP Guiseppe, VE (reprint author), Univ S Dakota, Dept Earth Sci & Phys, Vermillion, SD 57069 USA. EM vincente.guiseppe@usd.edu RI Hallin, Aksel/H-5881-2011; radford, David/A-3928-2015; Barabash, Alexander/S-8851-2016; OI Keillor, Martin/0000-0001-7828-5868; Wilkerson, John/0000-0002-0342-0217; Marino, Michael/0000-0003-1226-6036; Rielage, Keith/0000-0002-7392-7152; Green, Matthew/0000-0002-1958-8030 NR 12 TC 21 Z9 21 U1 0 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 44 EP 46 DI 10.1016/j.nuclphysbps.2011.04.063 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500010 ER PT J AU Surman, R McLaughlin, GC Friedland, A Duan, HY AF Surman, Rebecca McLaughlin, Gail C. Friedland, Alexander Duan, Huaiyu TI Collective oscillations and r-process nucleosynthesis SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento ID CORE-COLLAPSE SUPERNOVAE; NEUTRON-STAR MERGERS; METAL-POOR; CAPTURE; ENRICHMENT; EVOLUTION; GALAXY AB Neutrinos have recently been shown to have collective phenomenon which causes them to flavor transform near the center of the supernova. These flavor transformations can potentially impact; supernova nucleosynthesis, particularly for processes that occur near the core, such as the r-process. In this paper we explore the effects of collective oscillations on a supernova r-process. We find that magnitude of the effect depends senstivitely on the astrophysical conditions-in particular on the interplay between the time when nuclei begin to exist in significant numbers and the time when the collective oscillation begins. Because of this delicate balance, a more definitive understanding of the astrophysical conditions is necesssary. Here, we explore scenarios based on outflow models currently in use and discuss their implications. C1 [Surman, Rebecca] Union Coll, Dept Phys & Astron, Schenectady, NY 12308 USA. [McLaughlin, Gail C.] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. [Friedland, Alexander] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA. [Duan, Huaiyu] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA. RP Surman, R (reprint author), Union Coll, Dept Phys & Astron, Schenectady, NY 12308 USA. NR 24 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 121 EP 123 DI 10.1016/j.nuclphysbps.2011.04.081 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500028 ER PT J AU Bowden, NS AF Bowden, N. S. TI Reactor monitoring using antineutrino detectors SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento ID NEUTRINO; POWER AB Nuclear reactors have served as the antineutrino source for many fundamental physics experiments. The techniques developed by these experiments make it possible to use these weakly interacting particles for a practical purpose. T he large flux of antineutrinos that leaves a reactor carries information about two quantities of interest for safeguards: the reactor power and fissile inventory. Measurements made with antineutrino detectors could therefore offer an alternative means for verifying the power history and fissile inventory of a reactor as part of International Atomic Energy Agency (IAEA) and/or other reactor safeguards regimes. Several efforts to develop this monitoring technique are underway worldwide. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Bowden, NS (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. OI Bowden, Nathaniel/0000-0002-6115-0956 NR 10 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 134 EP 136 DI 10.1016/j.nuclphysbps.2011.04.085 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500032 ER PT J AU Ochoa-Ricoux, JP AF Ochoa-Ricoux, J. P. CA Daya Bay Collaboration TI The Daya Bay Neutrino Oscillation Experiment SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento AB The search for the mixing angle theta(13), the last unknown angle in the neutrino mixing matrix, is one of the main priorities in the field of neutrino physics. By measuring sin(2)(2 theta(13)) to better than 0.01 at 90% CL., the Daya Bay Reactor Neutrino Experiment has the highest sensitivity to this parameter among all the other experiments that are currently operating or under construction. The experiment consists of multiple identical detectors placed underground at different baselines from three groups of reactors, a configuration that minimizes systematic errors and cosmogenic backgrounds. The main aspects of the experiment, as well as its current status and future prospects, are reviewed. C1 [Ochoa-Ricoux, J. P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Ochoa-Ricoux, JP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,MS 50A2161, Berkeley, CA 94720 USA. OI Ochoa-Ricoux, Juan Pedro/0000-0001-7376-5555 NR 3 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 140 EP 142 DI 10.1016/j.nuclphysbps.2011.04.087 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500034 ER PT J AU Polly, CC AF Polly, C. C. TI Improved statistics in the search for (nu)over-bar(e) appearing in an (nu)over-bar(mu) beam in the MiniBooNE detector SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento ID NUCLEI; SIMULATION AB The MiniBooNE experiment at; Fermi National Accelerator Laboratory recently updated a search for (nu) over bar (e) appearing in an (nu) over bar (mu) beam to include higher statistics. Previous results were published with a. total of 3.39 x 10(20) protons on target (POT) [1], while these results have been expanded to include a total of 5.66 x 10(20) POT [2]. An excess of 20.9 +/- 14.0 events is observed in the energy range from 475 < E-nu(QE) < 1250 MeV, with the statistical significance of the excess peaking at 25.7 +/- 7.2 in the lowest two energy bins 475 - 675 MeV. The consistency with the background-only hypothesis in the 475-1250 MeV region is 0.5%, after constraints from the measured <(nu)over bar>(mu) spectrum have been applied. A fit to a 2 nu-mixing hypothesis yields a best-lit point at (Delta m(2), sin(2)2 theta) = (0.064eV(2), 0.96), although the 1 sigma allowed region encompasses a range of Delta m(2) values up to 1eV(2) at reduced values of sin(2)2 theta. After Feldman-Cousins corrections [3], it is found that the best-fit is preferred at a 99.4% C.L. over a background-only hypothesis, with an absolute goodness-of-fit of 8.7% C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Polly, CC (reprint author), Fermilab Natl Accelerator Lab, POB 500,MS 122, Batavia, IL 60510 USA. NR 29 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 EI 1873-3832 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 183 EP 185 DI 10.1016/j.nuclphysbps.2011.04.095 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500042 ER PT J AU Norman, A AF Norman, A. CA NOvA Collaboration TI The NO nu A Experiment at FNAL, status and perspectives SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento AB The NO nu A experiment is a new long baseline neutrino experiment designed to measure theta(13) through the appearance of nu(e) in nu(mu) beam, at an off-axis angle of 14 mrad. The NO nu A experiment has constructed and instrumented their near detector and has begun taking data in a surface location that places the detector in both the Neutrinos at the Main Injector (NuMI) neutrino beam and booster neutrino beam at Fermi lab. This location provides significant neutrino fluxes for studies of both nu(e) and nu(mu) interactions and for understanding of the detector response to both types of interactions. C1 [Norman, A.] Fermilab Natl Accelerator Lab, Comp Div, Batavia, IL 60510 USA. RP Norman, A (reprint author), Fermilab Natl Accelerator Lab, Comp Div, POB 500, Batavia, IL 60510 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 196 EP 198 DI 10.1016/j.nuclphysbps.2011.04.099 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500046 ER PT J AU Cardall, CY AF Cardall, C. Y. TI Core-collapse supernova explosion simulations SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Neutrino Oscillation Workshop (NOW) CY SEP 05-11, 2010 CL Otranto, ITALY SP Dept Phys, Sect Istituto Nazl Fisica Nucleare (INFN), Universita Ricerca (MIUR), Italian Ministero Istruzione, Univ Bari & Salento ID NEUTRINO RADIATION HYDRODYNAMICS; ACCRETION-SHOCK INSTABILITY; MECHANISM; EVOLUTION; ENGINE; STARS AB Neutrinos play important roles in the pre-collapse evolution, explosion, and aftermath of core-collapse supernovae. Detected neutrino signals from core-collapse supernovae would provide insight into the explosion mechanism and unknown neutrino mixing parameters. Achieving these goals requires large-scale, multiphysics simulations. For many years, several groups have performed such simulations with increasing realism. Current simulations and plans for future work of the Oak Ridge group are described. C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. RP Cardall, CY (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. NR 19 TC 1 Z9 1 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 EI 1873-3832 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD AUG PY 2011 VL 217 BP 275 EP 277 DI 10.1016/j.nuclphysbps.2011.04.118 PG 3 WC Physics, Particles & Fields SC Physics GA 825QI UT WOS:000295296500065 ER PT J AU Yang, DL Le, LAA Martinez, RJ Currier, RP Spencer, DF AF Yang, Dali Le, Loan A. Martinez, Ronald J. Currier, Robert P. Spencer, Dwain F. TI Kinetics of CO2 hydrate formation in a continuous flow reactor SO CHEMICAL ENGINEERING JOURNAL LA English DT Article DE Mass transfer; CO2 hydrate; Hydrate formation; Kinetics; IGCC ID CARBON-DIOXIDE; CLATHRATE-HYDRATE; LIQUID CO2; DEEP-SEA; WATER; SIMULATION; INTERFACE; BEHAVIOR; SYSTEM; PHASE AB In a previous paper, we examined heat transfer issues during CO2 hydrate formation in a tubular continuous flow reactor (Energy & Fuels 22 (2008) 2649-2659). In this work, the CO2 hydrate formation dynamics are examined from a chemical kinetics perspective. Mixtures of CO2 and argon, or helium, are used to mimic the composition of shifted synthesis gas (typically similar to 40 vol% CO2 in hydrogen). The kinetics of CO2 hydrate formation are reported at high fluid velocities and at high gas volume fractions (exceeding 85%). The effects of the gas carrier, fluid velocity, slurry concentration, and temperature on the hydrate formation rate are investigated. The CO2 hydrate phase likely forms at the interface between aqueous and gas phases and can be well-represented by a first-order reaction rate law under each of the distinct flow conditions considered. At the highest velocities and gas volume fractions tested, vigorous inter-phase mixing reduces heat and mass transfer resistances and the global reaction rate may ultimately approach the intrinsic CO2 hydrate formation rate. Under many other conditions, the global hydrate formation rate appears to be heat transfer-limited. Under heat transfer-limited regimes, the higher heat transfer rates associated with helium/CO2 mixtures (relative to argon/CO2) give apparent overall rate constants higher than those obtained from a Ar/CO2 mixture under similar flow conditions. However, even in the presence of thermal transport resistances, the hydrate formation rate remains rapid under industrially relevant processing conditions and the apparent kinetics can still be represented reasonably well by a simple first-order model, which should prove useful in process simulation and assessment studies. (C) 2011 Elsevier B.V. All rights reserved. C1 [Yang, Dali] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Le, Loan A.; Martinez, Ronald J.; Currier, Robert P.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Spencer, Dwain F.] SIMTECHE, Redding, CA 96003 USA. RP Yang, DL (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. EM dyang@lanl.gov; currier@lanl.gov FU US Department of Energy, Office of Fossil Energy (DOE/NETL) FX Expert technical assistance from Mr. Michael Sedillo in building and operating the ETM system is greatly appreciated. This work was funded by the US Department of Energy, Office of Fossil Energy (DOE/NETL), for which authors are grateful. NR 54 TC 11 Z9 13 U1 1 U2 36 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 1385-8947 J9 CHEM ENG J JI Chem. Eng. J. PD AUG 1 PY 2011 VL 172 IS 1 BP 144 EP 157 DI 10.1016/j.cej.2011.05.082 PG 14 WC Engineering, Environmental; Engineering, Chemical SC Engineering GA 827OW UT WOS:000295438800017 ER PT J AU Dadfarnia, M Sofronis, P Somerday, BP Balch, DK Schembri, P Melcher, R AF Dadfarnia, M. Sofronis, P. Somerday, B. P. Balch, D. K. Schembri, P. Melcher, R. TI On the environmental similitude for fracture in the SENT specimen and a cracked hydrogen gas pipeline SO ENGINEERING FRACTURE MECHANICS LA English DT Article DE Hydrogen embrittlement; Similitude; Pipeline; Transferability; Constraint fracture ID TIP FIELDS; VOID GROWTH; CONSTRAINT; STEEL; PARAMETER; STRESS; IRON AB We investigate the use of laboratory fracture specimens to ascertain the resistance to hydrogen embrittlement of a hydrogen pipeline with an axial crack on the inner diameter (ID) surface. In particular, we study the interaction of hydrogen with material elastoplasticity in single edge notch tension (SENT) specimens loaded in hydrogen gas at a pressure of 15 MPa. We find that the transient and steady state hydrogen concentration fields in the neighborhood of the crack tip in the SENT specimen and the real-life pipeline are essentially the same. This environmental similitude warrants the use of the SENT specimen in a gaseous hydrogen environment to examine the compatibility of steel pipelines with hydrogen. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Dadfarnia, M.; Sofronis, P.] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA. [Somerday, B. P.; Balch, D. K.] Sandia Natl Labs, Livermore, CA 94551 USA. [Schembri, P.; Melcher, R.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Sofronis, P (reprint author), Univ Illinois, Dept Mech Sci & Engn, 1206 W Green St, Urbana, IL 61801 USA. EM sofronis@illinois.edu OI Dadfarnia, Mohsen/0000-0002-5218-971X FU Los Alamos National Laboratory under US Department of Energy [LANL 62568-001-08]; US Department of Energy [GO15045]; National Science Foundation [DMR 0302470] FX The authors gratefully acknowledge support from (i) the Los Alamos National Laboratory under US Department of Energy contract no. LANL 62568-001-08; (ii) US Department of Energy Grant GO15045; and (iii) National Science Foundation Grant DMR 0302470. NR 35 TC 4 Z9 4 U1 2 U2 16 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0013-7944 J9 ENG FRACT MECH JI Eng. Fract. Mech. PD AUG PY 2011 VL 78 IS 12 BP 2429 EP 2438 DI 10.1016/j.engfracmech.2011.06.002 PG 10 WC Mechanics SC Mechanics GA 827OC UT WOS:000295436800005 ER PT J AU Abdalla, M Kumar, S Jones, M Burke, J Williams, M AF Abdalla, M. Kumar, S. Jones, M. Burke, J. Williams, M. TI Testing DNDC model for simulating soil respiration and assessing the effects of climate change on the CO2 gas flux from Irish agriculture SO GLOBAL AND PLANETARY CHANGE LA English DT Article DE soil respiration; spring barley; soil tillage; pasture; DNDC ID CARBON-DIOXIDE ENRICHMENT; DRAINED ILLINOIS AGROECOSYSTEMS; ELEVATED ATMOSPHERIC CO2; CORN-SOYBEAN ROTATIONS; LONG-TERM; CROPPING SYSTEMS; ORGANIC-MATTER; LAND-USE; NITROGEN-FERTILIZATION; TEMPERATURE-DEPENDENCE AB Simulation models can be valuable to investigate potential effects of climate change on greenhouse gas emissions from terrestrial ecosystems. DNDC (the DeNitrification-DeComposition model) was tested against observed soil respiration data from adjacent pasture and arable fields in the Irish midlands. The arable field was converted from grassland approximately 50 years ago and managed since 2003 under two different tillage systems; conventional and reduced tillage. Both fields were located on the same soil type, classified as a free draining sandy loam soil derived from fluvial glacial gravels with low soil moisture holding capacity. Soil respiration measurements were made from January 2003 to August 2005. Three climate scenarios were investigated, a baseline of measured climatic data from a weather station at the field site, and high and low temperature sensitivity scenarios predicted by the Community Climate Change Consortium for Ireland (C4I) based on the Hadley Centre Global Climate Model (HadCM(3)) and the Intergovernment Panel on Climate Change (IPCC) A1B emission scenario. The aims of this study were to use measured soil respiration rates to validate the DNDC model for estimating CO2 efflux from these key Irish soils, investigate the effects of future climate change on CO2 efflux and estimate the efflux uncertainties due to using different future climate projections. The results indicate that the DNDC model can reliably estimate soil respiration from the two fields examined. The model underestimated annual measured CO2 efflux from the pasture by only13% (model efficiency: ME = 0.6; root mean square error: RMSE = 1.9 and mean absolute error: MAE = 6.3) and that from the arable conventional and reduced tillage by 9% (ME = 0.6; RMSE = 1.6 and MAE = 2.4) and 8% (ME = 0.23; RMSE = 1.8 and MAE = 2.9), respectively. Short-term land use change had no significant effects on CO2 effluxes from soil. Using the high temperature sensitivity scenario, future C effluxes would increase by 15% for the pasture and 14 and 16% for the arable conventional and reduced tillage systems, respectively. However, under the low temperature sensitivity scenario, lower increases in the C efflux of 6% for the pasture and 5% for the arable field were predicted. The calculated annual CO2 efflux uncertainties for using the high and low temperature sensitivity scenarios were 9% for the pasture and 8% for the arable field. (C) 2011 Elsevier B.V. All rights reserved. C1 [Abdalla, M.; Jones, M.; Williams, M.] Trinity Coll Dublin, Sch Nat Sci, Dept Bot, Dublin 2, Ireland. [Kumar, S.] Univ Plymouth Coll, Duchy Coll, Callington PL17 8PB, Cornwall, England. [Burke, J.] Teagasc Co, Oak Pk Crops Res Ctr, Carlow, Ireland. RP Abdalla, M (reprint author), Trinity Coll Dublin, Sch Nat Sci, Dept Bot, Dublin 2, Ireland. EM abdallm@tcd.ie FU Irish EPA [2001-CD-C1M1]; EU [EVK2-CT2001-00105] FX This work was funded by the Irish EPA project no: 2001-CD-C1M1 and the EU sixth framework programme (contract EVK2-CT2001-00105). We are grateful to the Irish National Meteorological Service Research Group (Met Eireann) for providing us with the C4I Climate Projections and good collaboration. We are also grateful to the field staff of Teagasc in Carlow for facilitating our field work. NR 113 TC 23 Z9 24 U1 2 U2 55 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-8181 EI 1872-6364 J9 GLOBAL PLANET CHANGE JI Glob. Planet. Change PD AUG-SEP PY 2011 VL 78 IS 3-4 BP 106 EP 115 DI 10.1016/j.gloplacha.2011.05.011 PG 10 WC Geography, Physical; Geosciences, Multidisciplinary SC Physical Geography; Geology GA 825WT UT WOS:000295313500004 ER PT J AU Zhou, JZ Wu, LY Deng, Y Zhi, XY Jiang, YH Tu, QC Xie, JP Van Nostrand, JD He, ZL Yang, YF AF Zhou, Jizhong Wu, Liyou Deng, Ye Zhi, Xiaoyang Jiang, Yi-Huei Tu, Qichao Xie, Jianping Van Nostrand, Joy D. He, Zhili Yang, Yunfeng TI Reproducibility and quantitation of amplicon sequencing-based detection SO ISME JOURNAL LA English DT Article ID MICROBIAL COMMUNITY COMPOSITION; BACTERIAL DIVERSITY; RARE BIOSPHERE; SPECIES RICHNESS; SOIL; PCR; REVEALS; GENES; AMPLIFICATION; METAGENOMICS AB To determine the reproducibility and quantitation of the amplicon sequencing-based detection approach for analyzing microbial community structure, a total of 24 microbial communities from a long-term global change experimental site were examined. Genomic DNA obtained from each community was used to amplify 16S rRNA genes with two or three barcode tags as technical replicates in the presence of a small quantity (0.1% wt/wt) of genomic DNA from Shewanella oneidensis MR-1 as the control. The technical reproducibility of the amplicon sequencing-based detection approach is quite low, with an average operational taxonomic unit (OTU) overlap of 17.2%+/-2.3% between two technical replicates, and 8.2%+/-2.3% among three technical replicates, which is most likely due to problems associated with random sampling processes. Such variations in technical replicates could have substantial effects on estimating beta-diversity but less on alpha-diversity. A high variation was also observed in the control across different samples (for example, 66.7-fold for the forward primer), suggesting that the amplicon sequencing-based detection approach could not be quantitative. In addition, various strategies were examined to improve the comparability of amplicon sequencing data, such as increasing biological replicates, and removing singleton sequences and less-representative OTUs across biological replicates. Finally, as expected, various statistical analyses with preprocessed experimental data revealed clear differences in the composition and structure of microbial communities between warming and non-warming, or between clipping and non-clipping. Taken together, these results suggest that amplicon sequencing-based detection is useful in analyzing microbial community structure even though it is not reproducible and quantitative. However, great caution should be taken in experimental design and data interpretation when the amplicon sequencing-based detection approach is used for quantitative analysis of the beta-diversity of microbial communities. The ISME Journal (2011) 5, 1303-1313; doi:10.1038/ismej.2011.11; published online 24 February 2011 C1 [Zhou, Jizhong; Wu, Liyou; Deng, Ye; Zhi, Xiaoyang; Jiang, Yi-Huei; Tu, Qichao; Xie, Jianping; Van Nostrand, Joy D.; He, Zhili] Univ Oklahoma, Dept Bot & Microbiol, Inst Environm Genom, Norman, OK 73019 USA. [Zhou, Jizhong; Yang, Yunfeng] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China. [Zhou, Jizhong] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Zhou, JZ (reprint author), Univ Oklahoma, Dept Bot & Microbiol, Inst Environm Genom, Norman, OK 73019 USA. EM jzhou@ou.edu RI He, Zhili/C-2879-2012; Deng, Ye/A-2571-2013; Yang, Yunfeng/H-9853-2013; hui, wanghui/C-5671-2008; Van Nostrand, Joy/F-1740-2016; OI Yang, Yunfeng/0000-0001-8274-6196; Van Nostrand, Joy/0000-0001-9548-6450; ?, ?/0000-0002-7584-0632 FU US Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231, DE-SC0004601]; United States Department of Agriculture [2007-35319-18305] FX We thank Dr Fares Najar and Dr Bruce Roe at the University of Oklahoma for providing sequencing services, and Qiong Wang and James Cole at the Michigan State University for helping process pyrosequencing data. This work has been supported, through contract DE-AC02-05CH11231 (as part of ENIGMA, a Scientific Focus Area) and contract DE-SC0004601, by the US Department of Energy, Office of Science, Office of Biological and Environmental Research, Genomics: GTL Foundational Science, the United States Department of Agriculture (Project 2007-35319-18305) NR 58 TC 149 Z9 151 U1 12 U2 90 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1751-7362 J9 ISME J JI ISME J. PD AUG PY 2011 VL 5 IS 8 BP 1303 EP 1313 DI 10.1038/ismej.2011.11 PG 11 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA 832DO UT WOS:000295782200007 PM 21346791 ER PT J AU Adams, AS Jordan, MS Adams, SM Suen, G Goodwin, LA Davenport, KW Currie, CR Raffa, KF AF Adams, Aaron S. Jordan, Michelle S. Adams, Sandye M. Suen, Garret Goodwin, Lynne A. Davenport, Karen W. Currie, Cameron R. Raffa, Kenneth F. TI Cellulose-degrading bacteria associated with the invasive woodwasp Sirex noctilio SO ISME JOURNAL LA English DT Article DE Streptomyces; Pantoea; symbiosis; CAZyme; glycoside hydrolase ID DIGESTIVE ENZYMES; TERMITIDAE GUT; PINUS RADIATA; UNITED-STATES; BEETLE; CURCULIONIDAE; COLEOPTERA; MICROORGANISMS; PATHOGENICITY; AMYLOSTEREUM AB Sirex noctilio is an invasive wood-feeding wasp that threatens the world's commercial and natural pine forests. Successful tree colonization by this insect is contingent on the decline of host defenses and the ability to utilize the woody substrate as a source of energy. We explored its potential association with bacterial symbionts that may assist in nutrient acquisition via plant biomass deconstruction using growth assays, culture-dependent and -independent analysis of bacterial frequency of association and whole-genome analysis. We identified Streptomyces and gamma-Proteobacteria that were each associated with 94% and 88% of wasps, respectively. Streptomyces isolates grew on all three cellulose substrates tested and across a range of pH 5.6 to 9. On the basis of whole-genome sequencing, three Streptomyces isolates have some of the highest proportions of genes predicted to encode for carbohydrate-active enzymes (CAZyme) of sequenced Actinobacteria. gamma-Proteobacteria isolates grew on a cellulose derivative and a structurally diverse substrate, ammonia fiber explosion-treated corn stover, but not on microcrystalline cellulose. Analysis of the genome of a Pantoea isolate detected genes putatively encoding for CAZymes, the majority predicted to be active on hemicellulose and more simple sugars. We propose that a consortium of microorganisms, including the described bacteria and the fungal symbiont Amylostereum areolatum, has complementary functions for degrading woody substrates and that such degradation may assist in nutrient acquisition by S. noctilio, thus contributing to its ability to be established in forested habitats worldwide. The ISME Journal (2011) 5, 1323-1331; doi:10.1038/ismej.2011.14; published online 3 March 2011 C1 [Adams, Aaron S.; Jordan, Michelle S.; Raffa, Kenneth F.] Univ Wisconsin, Dept Entomol, Madison, WI 53706 USA. [Adams, Sandye M.; Suen, Garret; Currie, Cameron R.] Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA. [Suen, Garret; Currie, Cameron R.] Univ Wisconsin, Dept Energy, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA. [Goodwin, Lynne A.; Davenport, Karen W.] US DOE, Joint Genome Inst, Walnut Creek, CA USA. RP Raffa, KF (reprint author), Univ Wisconsin, Dept Entomol, 1630 Linden Dr, Madison, WI 53706 USA. EM raffa@entomology.wisc.edu OI Suen, Garret/0000-0002-6170-711X FU University of Wisconsin College of Agricultural and Life Sciences; National Science Foundation [MCB-0702025]; USDA NRI [2008-02438]; DOE Great Lakes Bioenergy Research Center (DOE Office of Science BER) [DE-FC02-07ER64494]; Office of Science of the US Department of Energy [DE-AC02-05CH11231] FX We thank J Tumlinson, K Zylstra, M Crawford and K Boroczky for providing insects, and the Great Lakes Bioenergy Research Center's Biomass Pretreatment Lab for providing ammonia fiber explosion-treated corn stover. D Coyle and anonymous reviewers provided editorial comments that improved the manuscript. We are also indebted to T Woyke for her assistance in whole-genome sequencing. This work was supported by the University of Wisconsin College of Agricultural and Life Sciences, the National Science Foundation (MCB-0702025), the USDA NRI (2008-02438) and the DOE Great Lakes Bioenergy Research Center (DOE Office of Science BER DE-FC02-07ER64494). The work conducted by the US Department of Energy Joint Genome Institute is supported by the Office of Science of the US Department of Energy under Contract No. DE-AC02-05CH11231. NR 51 TC 42 Z9 44 U1 7 U2 42 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1751-7362 EI 1751-7370 J9 ISME J JI ISME J. PD AUG PY 2011 VL 5 IS 8 BP 1323 EP 1331 DI 10.1038/ismej.2011.14 PG 9 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA 832DO UT WOS:000295782200009 PM 21368904 ER PT J AU Williamson, MA Willit, JL AF Williamson, M. A. Willit, J. L. TI PYROPROCESSING FLOWSHEETS FOR RECYCLING USED NUCLEAR FUEL SO NUCLEAR ENGINEERING AND TECHNOLOGY LA English DT Article DE Pyrochemical Processing; Nuclear Fuel Reprocessing; Electrochemical Processing AB Two conceptual flowsheets were developed for recycling used nuclear fuel. One flowsheet was developed for recycling used oxide nuclear fuel from light water reactors while the other was developed for recycling used metal fuel from fast spectrum reactors. Both flowsheets were developed from a set of design principles including efficient actinide recovery, nonproliferation, waste minimization and commercial viability. Process chemistry is discussed for each unit operation in the flowsheet. C1 [Williamson, M. A.; Willit, J. L.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Williamson, MA (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM williamson@anl.gov FU U.S. Department of Energy, Office of Nuclear Energy; U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX This work is supported by the U.S. Department of Energy, Office of Nuclear Energy, Fuel Cycle Research and Development Program. The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under Contract No. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. NR 8 TC 13 Z9 13 U1 2 U2 19 PU KOREAN NUCLEAR SOC PI DAEJEON PA NUTOPIA BLDG, 342-1 JANGDAE-DONG, DAEJEON, 305-308, SOUTH KOREA SN 1738-5733 J9 NUCL ENG TECHNOL JI Nucl. Eng. Technol. PD AUG PY 2011 VL 43 IS 4 BP 329 EP 334 DI 10.5516/NET.2011.43.4.329 PG 6 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 825CE UT WOS:000295247700002 ER PT J AU Goff, KM Wass, JC Marsden, KC Teske, GM AF Goff, K. M. Wass, J. C. Marsden, K. C. Teske, G. M. TI ELECTROCHEMICAL PROCESSING OF USED NUCLEAR FUEL SO NUCLEAR ENGINEERING AND TECHNOLOGY LA English DT Article DE Electrochemical; Pyrochemical; Pyroprocess; Electrometallurgical ID LIQUID CADMIUM CATHODE AB As part of the Department of Energy's Fuel Cycle Research and Development Program an electrochemical technology employing molten salts is being developed for recycle of metallic fast reactor fuel and treatment of light water reactor oxide fuel to produce a feed for fast reactors. This technology has been deployed for treatment of used fuel from the Experimental Breeder Reactor II (EBR-II) in the Fuel Conditioning Facility, located at the Materials and Fuel Complex of Idaho National Laboratory. This process is based on dry (non-aqueous) technologies that have been developed and demonstrated since the 1960s. These technologies offer potential advantages compared to traditional aqueous separations including: compactness, resistance to radiation effects, criticality control benefits, compatibility with advanced fuel types, and ability to produce low purity products. This paper will summarize the status of electrochemical development and demonstration activities with used nuclear fuel, including preparation of associated high-level waste forms. C1 [Goff, K. M.; Wass, J. C.; Marsden, K. C.; Teske, G. M.] Idaho Natl Lab, Idaho Falls, ID USA. RP Goff, KM (reprint author), Idaho Natl Lab, Idaho Falls, ID USA. EM mike.goff@inl.gov FU Department of Energy's Office of Nuclear Energy; Department of Energy's Office of Environmental Management FX The Department of Energy's Office of Nuclear Energy is funding the research and development activities on electrochemical processing and treatment of EBR-II used fuel. Prior to formation of INL in February 2005, these activities were part of work scope at Argonne National Laboratory-West and were performed in collaboration with Argonne National Laboratory in Illinois. The Department of Energy's Office of Environmental Management is funding the treatment of FFTF used fuel. NR 12 TC 12 Z9 12 U1 2 U2 18 PU KOREAN NUCLEAR SOC PI DAEJEON PA NUTOPIA BLDG, 342-1 JANGDAE-DONG, DAEJEON, 305-308, SOUTH KOREA SN 1738-5733 J9 NUCL ENG TECHNOL JI Nucl. Eng. Technol. PD AUG PY 2011 VL 43 IS 4 BP 335 EP 342 DI 10.5516/NET.2011.43.4.335 PG 8 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 825CE UT WOS:000295247700003 ER PT J AU Lee, J Jeong, YH Chang, YI Chang, SH AF Lee, Jewhan Jeong, Yong Hoon Chang, Yoon Il Chang, Soon Heung TI LINEAR PROGRAMMING OPTIMIZATION OF NUCLEAR ENERGY STRATEGY WITH SODIUM-COOLED FAST REACTORS SO NUCLEAR ENGINEERING AND TECHNOLOGY LA English DT Article DE Linear Programming; System Optimization; Sodium-cooled Fast Reactor AB Nuclear power has become an essential part of electricity generation to meet the continuous growth of electricity demand. A Sodium-cooled Fast Reactor (SFR) was developed to extend uranium resource utilization under a growing nuclear energy scenario while concomitantly providing a nuclear waste management solution. Key questions in this scenario are when to introduce SFRs and how many reactors should be introduced. In this study, a methodology using Linear Programming is employed in order to quantify an optimized growth pattern of a nuclear energy system comprising light water reactors and SFRs. The optimization involves tradeoffs between SFR capital cost premiums and the total system U3O8 price premiums. Optimum nuclear growth patterns for several scenarios are presented, as well as sensitivity analyses of important input parameters. C1 [Lee, Jewhan; Jeong, Yong Hoon; Chang, Yoon Il; Chang, Soon Heung] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Taejon 305701, South Korea. [Chang, Yoon Il] Argonne Natl Lab, Argonne, IL 60439 USA. RP Jeong, YH (reprint author), Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Taejon 305701, South Korea. EM jeongyh@kaist.ac.k RI Chang, Soon Heung/C-1858-2011; Jeong, Yong Hoon/C-1680-2011 FU National Research Foundation of Korea (NRF) [R33-10047]; Ministry of Education, Science and Technology FX This work was carried out under the World Class University (WCU) Program supported by a National Research Foundation of Korea (NRF) grant (R33-10047) funded by the Ministry of Education, Science and Technology. NR 10 TC 2 Z9 2 U1 0 U2 2 PU KOREAN NUCLEAR SOC PI DAEJEON PA NUTOPIA BLDG, 342-1 JANGDAE-DONG, DAEJEON, 305-308, SOUTH KOREA SN 1738-5733 J9 NUCL ENG TECHNOL JI Nucl. Eng. Technol. PD AUG PY 2011 VL 43 IS 4 BP 383 EP 390 DI 10.5516/NET.2011.43.4.383 PG 8 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 825CE UT WOS:000295247700008 ER PT J AU McIntyre, SM Ferguson, JW Houk, RS AF McIntyre, Sally M. Ferguson, Jill Wisnewski Houk, R. S. TI Determination of dissociation temperature for ArO+ in inductively coupled plasma-mass spectrometry: Effects of excited electronic states and dissociation pathways SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article DE Inductively coupled plasma-mass spectrometry; Inductively coupled plasma; Ion extraction; Argon oxide ion: ArO+ ID POLYATOMIC IONS; PARTITION-FUNCTIONS; HIGH-RESOLUTION; GAS-DYNAMICS; PART I; INTERFERENCES; EXTRACTION; INTERFACE; ORIGINS; SKIMMER AB The method of comparing experimental and calculated ion ratios to determine a gas kinetic temperature (T-gas) characteristic of the origin of a polyatomic ion in inductively coupled plasma-mass spectrometry (ICP-MS) is applied to ArO+. Repeated measurements of ion ratios involving this species yield erratic T-gas values. Complications arise from the predicted presence of a low-lying excited electronic state ((2)Pi) above the (4)Sigma ground state. Omission of this excited state yields unreasonably high temperatures (> 10,000 K) for nine out of nineteen trials. Inclusion of the excited electronic state in the partition function of ArO+ causes temperatures to increase further. The problem appears to be related to the prediction that ArO+ in the (2)Pi excited state dissociates into Ar+ and O, different products than ArO+ (4)Sigma which dissociates into Ar and O+. Adjustments to the calculations to account for these different products yield reasonable temperatures (2100 to 3500 K) that are consistent from day-to-day and similar to those seen for other weakly-bound polyatomic ions. (C) 2011 Elsevier B.V. All rights reserved. C1 [McIntyre, Sally M.; Ferguson, Jill Wisnewski; Houk, R. S.] Iowa State Univ, Dept Chem, Ames Lab, US Dept Energy, Ames, IA 50011 USA. RP Houk, RS (reprint author), Iowa State Univ, Dept Chem, Ames Lab, US Dept Energy, Ames, IA 50011 USA. EM rshouk@iastate.edu FU National Science Foundation through the Institute for Physical Research and Technology at ISU [CHE-0309381]; U. S. Department of Energy, Office of Nuclear Nonproliferation [NA-22]; Office of Basic Energy Sciences; Iowa State University [DE-AC02-07CH11358] FX This research was supported by the National Science Foundation (Award No. CHE-0309381) through the Institute for Physical Research and Technology at ISU. The ICP-MS instrument was obtained with funds provided by the U. S. Department of Energy, Office of Nuclear Nonproliferation (NA-22) and the Office of Basic Energy Sciences, Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. NR 33 TC 5 Z9 5 U1 0 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PD AUG PY 2011 VL 66 IS 8 BP 581 EP 587 DI 10.1016/j.sab.2011.06.002 PG 7 WC Spectroscopy SC Spectroscopy GA 831QG UT WOS:000295745600002 ER PT J AU Mao, XL Bol'shakov, AA Perry, DL Sorkhabi, O Russo, RE AF Mao, Xianglei Bol'shakov, Alexander A. Perry, Dale L. Sorkhabi, Osman Russo, Richard E. TI Laser Ablation Molecular Isotopic Spectrometry: Parameter influence on boron isotope measurements SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article DE Optical isotopic measurement; Laser ablation plasma; Molecular emission spectra; LIBS; LAMIS of boron isotopes; Boron isotope ID INDUCED BREAKDOWN SPECTROSCOPY; ATOMIC EMISSION-SPECTROMETRY; NEUTRON DETECTORS; MASS-SPECTROMETRY; CARBIDE DIODE; PLASMA; SPECTRA; URANIUM; RATIO AB Laser Ablation Molecular Isotopic Spectrometry (LAMIS) was recently reported for optical isotopic analysis of condensed samples in ambient air and at ambient pressure. LAMIS utilizes molecular emissions which exhibit larger isotopic spectral shits than in atomic transitions. For boron monoxide (10)BO and (11)BO, the isotopic shifts extend from 114 cm(-1) (0.74 nm) to 145-238 cm(-1) (5-8 nm) at the B (2)Sigma(+) (v=0)-> X (2)Sigma(+) (v=2) and A (2)Pi(1) (v=0)-> X (2)Sigma(+) (v=3) transitions, respectively. These molecular isotopic shifts are over two orders of magnitude larger than the maximum isotopic shift of approximately 0.6 cm(-1) in atomic boron. This paper describes how boron isotope abundance can be quantitatively determined using LAMIS and how atomic, ionic, and molecular optical emission develops in a plasma emanating from laser ablation of solid samples with various boron isotopic composition. We demonstrate that requirements for spectral resolution of the measurement system can be significantly relaxed when the isotopic abundance ratio is determined using chemometric analysis of spectra. Sensitivity can be improved by using a second slightly delayed laser pulse arriving into an expanding plume created by the first ablation pulse. (C) 2011 Elsevier B.V. All rights reserved. C1 [Mao, Xianglei; Perry, Dale L.; Sorkhabi, Osman; Russo, Richard E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Bol'shakov, Alexander A.] Appl Spectra Inc, Fremont, CA 94538 USA. RP Russo, RE (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM rerusso@lbl.gov RI Bol'shakov, Alexander/A-9258-2015 OI Bol'shakov, Alexander/0000-0002-6034-7079 FU Defense Threat Reduction Administration (DTRA) of the U. S. Department of Defense [LB09005541, LB09005541A]; U.S. Department of Energy through the National Nuclear Security Administration (NNSA) [DE-AC02-05CH11231]; NASA [NNX10CA07C] FX This work was supported by the Defense Threat Reduction Administration (DTRA) of the U. S. Department of Defense under Federal Awards No. LB09005541 and LB09005541A, and Contract no. DE-AC02-05CH11231 awarded by the U.S. Department of Energy through the National Nuclear Security Administration (NNSA); and NASA Contract no. NNX10CA07C awarded to Applied Spectra Inc. NR 45 TC 43 Z9 44 U1 3 U2 31 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PD AUG PY 2011 VL 66 IS 8 BP 604 EP 609 DI 10.1016/j.sab.2011.06.007 PG 6 WC Spectroscopy SC Spectroscopy GA 831QG UT WOS:000295745600005 ER PT J AU Turick, CE Ekechukwu, AA Milliken, CE Casadevall, A Dadachova, E AF Turick, Charles E. Ekechukwu, Amy A. Milliken, Charles E. Casadevall, Arturo Dadachova, Ekaterina TI Gamma radiation interacts with melanin to alter its oxidation-reduction potential and results in electric current production SO BIOELECTROCHEMISTRY LA English DT Article DE Melanin; Gamma radiation; Current production; Radioprotection ID SHEWANELLA-ALGAE BRY; CRYPTOCOCCUS-NEOFORMANS; IONIZING-RADIATION; FUNGI; RADICALS; LIGHT; OXIDE AB The presence of melanin pigments in organisms is implicated in radioprotection and in some cases, enhanced growth in the presence of high levels of ionizing radiation. An understanding of this phenomenon will be useful in the design of radioprotective materials. However, the protective mechanism of microbial melanin in ionizing radiation fields has not yet been elucidated. Here we demonstrate through the electrochemical techniques of chronoamperometry, chronopotentiometry and cyclic voltammetry that microbial melanin is continuously oxidized in the presence of gamma radiation. Our findings establish that ionizing radiation interacts with melanin to alter its oxidation-reduction potential. Sustained oxidation resulted in electric current production and was most pronounced in the presence of a reductant, which extended the redox cycling capacity of melanin. This work is the first to establish that gamma radiation alters the oxidation-reduction behavior of melanin, resulting in electric current production. The significance of the work is that it provides the first step in understanding the initial interactions between melanin and ionizing radiation taking place and offers some insight for production of biomimetic radioprotective materials. Published by Elsevier B.V. C1 [Turick, Charles E.; Milliken, Charles E.] Savannah River Natl Lab, Biotechnol Sect, Aiken, SC 29808 USA. [Ekechukwu, Amy A.] Savannah River Natl Lab, Analyt Programs, Aiken, SC 29808 USA. [Casadevall, Arturo; Dadachova, Ekaterina] Albert Einstein Coll Med, Bronx, NY 10461 USA. RP Turick, CE (reprint author), Savannah River Natl Lab, Biotechnol Sect, Bldg 999-W, Aiken, SC 29808 USA. EM Charles.Turick@srnl.doe.gov RI Dadachova, Ekaterina/I-7838-2013 FU Savannah River National Laboratory; U.S. Department of Energy at SRNL [DE-AC09-08SR22470] FX We thank S. W. Taylor and D.C. Beam for technical and logistical assistance and D. A. Lowy for critical discussions and reading of the manuscript. This research was supported through funding by the Savannah River National Laboratory Directed Research and Development Program. This document was prepared in conjunction with work accomplished at SRNL under Contract No. DE-AC09-08SR22470 with the U.S. Department of Energy. E.D. is a Sylvia and Robert Olnick Faculty Scholar in Cancer Research. NR 19 TC 11 Z9 13 U1 3 U2 25 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 1567-5394 J9 BIOELECTROCHEMISTRY JI Bioelectrochemistry PD AUG PY 2011 VL 82 IS 1 BP 69 EP 73 DI 10.1016/j.bioelechem.2011.04.009 PG 5 WC Biochemistry & Molecular Biology; Biology; Biophysics; Electrochemistry SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Biophysics; Electrochemistry GA 825SF UT WOS:000295301700009 PM 21632287 ER PT J AU Horner, DA Sternberg, M Zapol, P Curtiss, LA AF Horner, David A. Sternberg, Michael Zapol, Peter Curtiss, Larry A. TI Carbon nanotunnels form from single-walled carbon nanotubes interacting with a diamond (100)-(2 x 1) surface SO DIAMOND AND RELATED MATERIALS LA English DT Article DE Nanotubes; Nanostructures; Composites; Diamond crystal; Bonding configurations; Electrical properties ID ELECTRONICS; STABILITY AB A quantum chemical study of the interaction of (5,5), (7,7), (9,9) and (8,0) single-walled carbon nanotubes with a clean (100)-(2 x 1) diamond surface is reported. Stable structures with covalent bonds at the interface were found for carbon nanotubes oriented parallel or perpendicular to the dimer rows on the reconstructed (100) surface. The binding energy of the most stable (5,5) nanotube-diamond structure is 1.7 eV/angstrom, and is attributed to strong covalent bonds formed between the carbon nanotube and the diamond surface. The structure of the nanotube is distorted by adsorption on the surface such that it adopts a tunnel-like geometry. Two other nanotunnel geometries were found for the (5,5) nanotube, with binding energies of 1.39 and 1.09 eV/angstrom. In the most stable (5,5) nanotube-diamond structure the interaction between the nanotube and the diamond surface produces a 0.6 eV band gap near the Fermi level, but the metallic character of the nanotube is maintained in the two other, less strongly bound nanotunnel structures. No charge transfer occurs between the diamond surface and the nanotunnels in any of the three orientations. Binding energies decrease with increases in tube diameter, to the extent that one of the three nanotunnel structures is not formed by (9,9) carbon nanotubes. (C) 2011 Elsevier B.V. All rights reserved. C1 [Horner, David A.] N Cent Coll, Naperville, IL 60540 USA. [Horner, David A.; Zapol, Peter; Curtiss, Larry A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Sternberg, Michael; Zapol, Peter; Curtiss, Larry A.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Horner, DA (reprint author), N Cent Coll, 30 N Brainard St, Naperville, IL 60540 USA. EM dahorner@noctrl.edu RI Zapol, Peter/G-1810-2012 OI Zapol, Peter/0000-0003-0570-9169 FU U.S. Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-06CHH1357] FX This work was supported by the U.S. Department of Energy, Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract DE-AC02-06CHH1357. NR 24 TC 1 Z9 1 U1 1 U2 6 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-9635 J9 DIAM RELAT MATER JI Diam. Relat. Mat. PD AUG PY 2011 VL 20 IS 8 BP 1103 EP 1109 DI 10.1016/j.diamond.2011.06.018 PG 7 WC Materials Science, Multidisciplinary SC Materials Science GA 825RW UT WOS:000295300800002 ER PT J AU M'ndange-Pfupfu, A Eryilmaz, O Erdemir, A Marks, LD AF M'ndange-Pfupfu, A. Eryilmaz, O. Erdemir, A. Marks, L. D. TI Quantification of sliding-induced phase transformation in N3FC diamond-like carbon films SO DIAMOND AND RELATED MATERIALS LA English DT Article DE Diamond-like carbon; Tribochemistry; In situ TEM; Tribology ID ATOMIC-SCALE FRICTION; SUPERLOW FRICTION; AMORPHOUS-CARBON; MOLECULAR-DYNAMICS; EELS ANALYSIS; DLC FILMS; COATINGS; WEAR; TRIBOLOGY; GRAPHITIZATION AB We investigate magnetron-sputtered "N3FC' diamond-like carbon films at the nanoscale using an in situ transmission electron microscopy sliding experiment. We measure the sliding-induced changes in sp(3)- and sp(2)-hybridized carbon using electron energy loss spectroscopy, taking into account the effect of the electron beam. The rate of the phase transformation from sp(3) to sp(2) bonding is quantified as being between 0.009% and 0.018% volume transformed per sliding pass. (C) 2011 Elsevier B.V. All rights reserved. C1 [M'ndange-Pfupfu, A.; Marks, L. D.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. [Eryilmaz, O.; Erdemir, A.] Argonne Natl Lab, Div Energy Syst, Tribol Sect, Argonne, IL 60439 USA. RP M'ndange-Pfupfu, A (reprint author), Northwestern Univ, Dept Mat Sci & Engn, 2220 N Campus Dr,Cook Hall Room 2036, Evanston, IL 60208 USA. EM ariel@u.northwestern.edu RI Marks, Laurence/B-7527-2009 FU UChicago Argonne, LLC [DE-AC02-06CH11357]; National Science Foundation [CMMI-1030703]; U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Freedom Car and Vehicle Technologies [DE-AC02-06CH11357]; U.S. Air Force Office of Scientific Research [FA9550-08-1-0010] FX The authors acknowledge valuable feedback from Jackie Johnson over the course of this project. The authors would also like to acknowledge Russell Cook for his technical assistance. The electron microscopy was performed at the Electron Microscopy Center for Materials Research at Argonne National Laboratory, a U.S. Department of Energy Office of Science Laboratory operated under Contract No. DE-AC02-06CH11357 by UChicago Argonne, LLC.; AM and LDM acknowledge funding by the National Science Foundation on Grant Number CMMI-1030703.; OA and AE acknowledge funding by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Freedom Car and Vehicle Technologies Program, under Contract no. DE-AC02-06CH11357 and the U.S. Air Force Office of Scientific Research on grant number FA9550-08-1-0010. NR 40 TC 9 Z9 9 U1 1 U2 11 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-9635 J9 DIAM RELAT MATER JI Diam. Relat. Mat. PD AUG PY 2011 VL 20 IS 8 BP 1143 EP 1148 DI 10.1016/j.diamond.2011.06.028 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA 825RW UT WOS:000295300800009 ER PT J AU Drury, E Denholm, P Sioshansi, R AF Drury, Easan Denholm, Paul Sioshansi, Ramteen TI The value of compressed air energy storage in energy and reserve markets SO ENERGY LA English DT Article DE Energy storage; Arbitrage; Operating reserves; CAES; Investment decisions ID ELECTRICITY; CAES AB Storage devices can provide several grid services, however it is challenging to quantify the value of providing several services and to optimally allocate storage resources to maximize value. We develop a co-optimized Compressed Air Energy Storage (CAES) dispatch model to characterize the value of providing operating reserves in addition to energy arbitrage in several U.S. markets. We use the model to: (1) quantify the added value of providing operating reserves in addition to energy arbitrage; (2) evaluate the dynamic nature of optimally allocating storage resources into energy and reserve markets; and (3) quantify the sensitivity of CAES net revenues to several design and performance parameters. We find that conventional CAES systems could earn an additional $23 +/- 10/kW-yr by providing operating reserves, and adiabatic CAES systems could earn an additional $28 +/- 13/kW-yr. We find that arbitrage-only revenues are unlikely to support a CAES investment in most market locations, but the addition of reserve revenues could support a conventional CAES investment in several markets. Adiabatic CAES revenues are not likely to support an investment in most regions studied. Modifying CAES design and performance parameters primarily impacts arbitrage revenues, and optimizing CAES design will be nearly independent of dispatch strategy. (C) 2011 Elsevier Ltd. All rights reserved. C1 [Drury, Easan; Denholm, Paul] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Sioshansi, Ramteen] Ohio State Univ, Columbus, OH 43210 USA. RP Drury, E (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM easan.drury@nrel.gov; paul.denholm@nrel.gov; sioshansi.1@osu.edu NR 18 TC 66 Z9 66 U1 7 U2 30 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-5442 J9 ENERGY JI Energy PD AUG PY 2011 VL 36 IS 8 BP 4959 EP 4973 DI 10.1016/j.energy.2011.05.041 PG 15 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA 824YE UT WOS:000295237300038 ER PT J AU Sun, A Davis, R Starbuck, M Ben-Amotz, A Pate, R Pienkos, PT AF Sun, Amy Davis, Ryan Starbuck, Meghan Ben-Amotz, Ami Pate, Ron Pienkos, Philip T. TI Comparative cost analysis of algal oil production for biofuels SO ENERGY LA English DT Article DE Algae; Triacylglyceride; Economics; Autotrophic; Scale-up biofuel production ID MICROALGAE AB Economic analysis is an essential evaluation for considering feasibility and viability of large-scale, photoautotrophic algae-based, biofuel production. Thus far, economic analysis has been conducted on a scenario-by-scenario basis which does not allow for cross-comparisons. In 2008, a comparative study was carried out using a cross-section of cost analyses consisting of 12 public studies. The resulting triacylglyceride cost had a spread of two orders of magnitude excluding two studies which were intended for specialty chemicals. The cost spread can be largely attributed to disparate assumptions and uncertainties in economic and process inputs. To address this disparity, four partners from research, academia, and industry collaborated on a harmonization study to estimate algal oil production costs based on a common framework. The updated cost comparison based on a normalized set of input assumptions was found to greatly reduce economic variability, resulting in algal oil production costs ranging from $10.87 gallon(-1) to $13.32 gallon(-1). (C) 2011 Elsevier Ltd. All rights reserved. C1 [Sun, Amy; Pate, Ron] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Davis, Ryan; Pienkos, Philip T.] Natl Renewable Energy Lab, Golden, CO USA. [Starbuck, Meghan] New Mexico State Univ, Las Cruces, NM 88003 USA. [Starbuck, Meghan] Natl Alliance Adv Biofuels & Bioprod, St Louis, MO USA. [Ben-Amotz, Ami] Seambiotic, Ashqelon, Israel. [Pienkos, Philip T.] Sustainable Algal Biofuels Consortium, Mesa, AZ USA. RP Sun, A (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM acsun@sandia.gov FU U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory [DE-EE0003046]; National Alliance for Advanced Biofuels and Bioproducts; Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08-GO28308 with the National Renewable Energy Laboratory and Contract No. DE-EE0003046 with the National Alliance for Advanced Biofuels and Bioproducts. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 28 TC 90 Z9 91 U1 4 U2 72 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-5442 J9 ENERGY JI Energy PD AUG PY 2011 VL 36 IS 8 BP 5169 EP 5179 DI 10.1016/j.energy.2011.06.020 PG 11 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA 824YE UT WOS:000295237300058 ER PT J AU Kushima, A Eapen, J Li, J Yip, S Zhu, T AF Kushima, A. Eapen, J. Li, Ju Yip, S. Zhu, T. TI Time scale bridging in atomistic simulation of slow dynamics: viscous relaxation and defect activation SO EUROPEAN PHYSICAL JOURNAL B LA English DT Article ID ACCELERATED MOLECULAR-DYNAMICS; GLASS-FORMING LIQUIDS; LENNARD-JONES MIXTURE; MODE-COUPLING THEORY; TRANSITION; DEFORMATION; SYSTEMS; METALS; TEMPERATURE; PLASTICITY AB Atomistic simulation methods are known for timescale limitations in resolving slow dynamical processes. Two well-known scenarios of slow dynamics are viscous relaxation in supercooled liquids and creep deformation in stressed solids. In both phenomena the challenge to theory and simulation is to sample the transition state pathways efficiently and follow the dynamical processes on long timescales. We present a perspective based on the biased molecular simulation methods such as metadynamics, autonomous basin climbing (ABC), strain-boost and adaptive boost simulations. Such algorithms can enable an atomic-level explanation of the temperature variation of the shear viscosity of glassy liquids, and the relaxation behavior in solids undergoing creep deformation. By discussing the dynamics of slow relaxation in two quite different areas of condensed matter science, we hope to draw attention to other complex problems where anthropological or geological-scale time behavior can be simulated at atomic resolution and understood in terms of micro-scale processes of molecular rearrangements and collective interactions. As examples of a class of phenomena that can be broadly classified as materials ageing, we point to stress corrosion cracking and cement setting as opportunities for atomistic modeling and simulations. C1 [Kushima, A.; Yip, S.] MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA. [Kushima, A.; Li, Ju] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA. [Eapen, J.] N Carolina State Univ, Dept Nucl Engn, Raleigh, NC 27695 USA. [Eapen, J.] Idaho Natl Lab, Ctr Adv Modeling & Simulat, Idaho Falls, ID 83415 USA. [Yip, S.] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA. [Zhu, T.] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA. RP Kushima, A (reprint author), MIT, Dept Nucl Sci & Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM jacob.eapen@ncsu.edu RI Zhu, Ting/A-2206-2009; Li, Ju/A-2993-2008; Kushima, Akihiro/H-2347-2011 OI Li, Ju/0000-0002-7841-8058; FU Consortium for Advanced Simulation of Light Water Reactors, an Energy Innovation Hub for Modeling and Simulation of Nuclear Reactors under U.S. Department of Energy [DE-AC05-00OR22725]; INL LDRD [DE-AC07-05ID14517]; NSF [DMR-1008104, DMR-0520020]; AFOSR [FA9550-08-1-0325] FX We would like to acknowledge the collaborations of Xin Lin, John Mauro, Xiaofeng Qian, and Phong Diep in the viscosity studies, and of Timothy Lau in the creep study. Additionally we thank Bilge Yildiz and Yue Fan for discussions of their studies of interstitial and vacancy defects using the ABC algorithm. SY acknowledges the Kavli Institute of Theoretical Physics, University of California at Santa Barbara for hospitality during the 2010 program on Physics of Glasses, and support by the Consortium for Advanced Simulation of Light Water Reactors, an Energy Innovation Hub for Modeling and Simulation of Nuclear Reactors under U.S. Department of Energy Contract No. DE-AC05-00OR22725. JE acknowledges support from INL LDRD contract No. DE-AC07-05ID14517. AK and JL acknowledge support by NSF DMR-1008104, DMR-0520020 and AFOSR FA9550-08-1-0325. NR 105 TC 17 Z9 17 U1 0 U2 42 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6028 EI 1434-6036 J9 EUR PHYS J B JI Eur. Phys. J. B PD AUG PY 2011 VL 82 IS 3-4 BP 271 EP 293 DI 10.1140/epjb/e2011-20075-4 PG 23 WC Physics, Condensed Matter SC Physics GA 826EM UT WOS:000295334300008 ER PT J AU Felmy, AR Ilton, ES Rosso, KM Zachara, JM AF Felmy, A. R. Ilton, E. S. Rosso, K. M. Zachara, J. M. TI Interfacial reactivity of radionuclides: emerging paradigms from molecular-level observations SO MINERALOGICAL MAGAZINE LA English DT Article DE radionuclides; interfacial reactivity; molecular-level analytical probes ID VADOSE ZONE SEDIMENTS; CONTAMINATED HANFORD SEDIMENTS; SOLID-WATER INTERFACE; SUBSURFACE SEDIMENTS; HETEROGENEOUS REDUCTION; ORGANIC CONTAMINANTS; SPHERE COMPLEXATION; REDUCING CONDITIONS; URANIUM SPECIATION; AQUEOUS FE(II) AB Over the past few decades an increasing array of molecular-level analytical probes has provided new detailed insight into mineral and radionuclide interfacial reactivity in subsurface environments. This capability has not only helped change the way mineral surface reactivity is studied but also how field-scale contaminant migration problems are addressed and ultimately resolved. Here we review relatively new interfacial reactivity paradigms and assess their implications for future research directions. Specific examples include understanding the following: the role of site-to-site electron conduction at mineral surfaces and through bulk mineral phases and the effects of local chemical environment on the stability of intermediate species in oxidation-reduction reactions and the importance of mechanistic reaction pathways for defining possible reaction products and thermodynamic driving force. The discussion also includes examples of how detailed molecular/microscopic characterization of field samples has changed the way complex contaminant migration problems are conceptualized and modelled. C1 [Felmy, A. R.; Ilton, E. S.; Rosso, K. M.; Zachara, J. M.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Felmy, AR (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM ar.felmy@pnl.gov FU Office of Basic Energy Sciences (BES); US Department of Energy; US Department of Energy's Office of Biological and Environmental Research, as part of the Subsurface Biogeochemical Research (SBR) Science Focus Area (SFA) at the Pacific Northwest National Laboratory; US Department of Energy's Office of Biological and Environmental Research FX This work was partially funded by the Geosciences Research Program of the Office of Basic Energy Sciences (BES), US Department of Energy. This work was also partially supported by the US Department of Energy's Office of Biological and Environmental Research, as part of the Subsurface Biogeochemical Research (SBR) Science Focus Area (SFA) at the Pacific Northwest National Laboratory. A portion of this research was performed using EMSL, a national scientific user facility sponsored by the US Department of Energy's Office of Biological and Environmental Research and located at the Pacific Northwest National Laboratory. NR 64 TC 9 Z9 9 U1 2 U2 16 PU MINERALOGICAL SOC PI TWICKENHAM PA 12 BAYLIS MEWS, AMYAND PARK ROAD,, TWICKENHAM TW1 3HQ, MIDDLESEX, ENGLAND SN 0026-461X J9 MINERAL MAG JI Mineral. Mag. PD AUG PY 2011 VL 75 IS 4 BP 2379 EP 2391 DI 10.1180/minmag.2011.075.4.2379 PG 13 WC Mineralogy SC Mineralogy GA 824PK UT WOS:000295214200003 ER PT J AU Atre, A Azuelos, G Carena, M Han, T Ozcan, E Santiago, J Unel, G AF Atre, Anupama Azuelos, Georges Carena, Marcela Han, Tao Ozcan, Erkcan Santiago, Jose Unel, Gokhan TI Model-independent searches for new quarks at the LHC SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Beyond Standard Model; Phenomenological Models; Hadronic Colliders ID HIGGS-BOSON; FERMIONS; MASS; COLLISIONS; E6 AB New vector-like quarks can have sizable couplings to first generation quarks without conflicting with current experimental constraints. The coupling with valence quarks and unique kinematics make single production the optimal discovery process. We perform a model-independent analysis of the discovery reach at the Large Hadron Collider for new vector-like quarks considering single production and subsequent decays via electroweak interactions. An early LHC run with 7TeV center of mass energy and 1 fb(-1) of integrated luminosity can probe heavy quark masses up to 1TeV and can be competitive with the Tevatron reach of 10 fb(-1). The LHC with 14TeV center of mass energy and 100 fb(-1) of integrated luminosity can probe heavy quark masses up to 3.7TeV for order one couplings. C1 [Atre, Anupama; Carena, Marcela] Fermilab Natl Accelerator Lab, Batavia, IL USA. [Atre, Anupama] Michigan State Univ, E Lansing, MI 48824 USA. [Azuelos, Georges] Univ Montreal, Montreal, PQ, Canada. [Azuelos, Georges] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Carena, Marcela] Univ Chicago, Chicago, IL 60637 USA. [Han, Tao] Univ Wisconsin, Madison, WI 53706 USA. [Ozcan, Erkcan] UCL, London, England. [Ozcan, Erkcan] Bogazici Univ, Istanbul, Turkey. [Santiago, Jose] Univ Granada, Granada, Spain. [Unel, Gokhan] Univ Calif Irvine, Irvine, CA USA. RP Atre, A (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL USA. EM avatre@fnal.gov; georges.azuelos@umontreal.ca; carena@fnal.gov; than@hep.wisc.edu; eo@hep.ucl.ac.uk; jsantiago@ugr.es; Gokhan.Unel@cern.ch RI Santiago, Jose/D-9109-2016; OI Santiago, Jose/0000-0003-3585-5626; Han, Tao/0000-0002-5543-0716 FU United States Department of Energy [DE-AC02-07CH11359, DE-FG02-95ER40896]; US National Science Foundation [PHY-0854889]; MICINN [FPA2010-17915, FPA2006-05294, FQM 101, FQM 03048] FX We acknowledge interesting discussions with R. Sekhar Chivukula, Joseph Lykken, M. Rodriguez-Chala and Elizabeth Simmons. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. AA was supported in part by the US National Science Foundation under grant PHY-0854889. The work of TH is supported in part by the United States Department of Energy under grant DE-FG02-95ER40896. JS is partially supported by projects FPA2010-17915, FPA2006-05294, FQM 101, FQM 03048 and by MICINN through a Ramon y Cajal contract and would like to thank CERN TH division for hospitality during completion of this work. NR 55 TC 29 Z9 29 U1 0 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. 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J Wang, X Wang, Z Xiao, H Xu, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Finger, M Finger, M Assran, Y Kamel, AE Khalil, S Mahmoud, MA Hektor, A Kadastik, M Muntel, M Raidal, M Rebane, L Tiko, A Azzolini, V Eerola, P Fedi, G Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Karjalainen, A Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P De Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A 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CA CMS Collaboration TI Search for same-sign top-quark pair production at root s=7 TeV and limits on flavour changing neutral currents in the top sector SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering AB An inclusive search for same-sign top-quark pair production in pp collisions at root s = 7 TeV is performed using a data sample recorded with the CMS detector in 2010, corresponding to an integrated luminosity of 35 pb(-1). This analysis is motivated by recent studies of p (p) over bar -> t (t) over bar reporting mass-dependent forward-backward asymmetries larger than expected from the standard model. These asymmetries could be due to Flavor Changing Neutral Currents (FCNC) in the top sector induced by t -channel exchange of a massive neutral vector boson (Z'). Models with such a Z' also predict enhancement of same-sign top-pair production in pp or pp collisions. Limits are set as a function of the Z' mass and its couplings to u and t quarks. 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[Autermann, C.; Blobel, V.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Goerner, M.; Hermanns, T.; Kaschube, K.; Kaussen, G.; Kirschenmann, H.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schlieckau, E.; Schroeder, M.; Schum, T.; Stadie, H.; Steinbrueck, G.; Thomsen, J.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Berger, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Komaragiri, J. R.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Ratnikova, N.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Weiler, T.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Saoulidou, N.; Stiliaris, E.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Hajdu, C.; Hidas, P.; Horvath, D.; Kapusi, A.; Krajczar, K.; Sikler, F.; Veres, G. I.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Naimuddin, M.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Jain, S.; Banerjee, S.; Bhattacharya, S.; Dutta, S.; Gomber, B.; Khurana, R.; Sarkar, S.] Saha Inst Nucl Phys, Kolkata, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kumar, V.; Mehta, P.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res, EHEP, Bombay 400005, Maharashtra, India. [Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res, HECR, Bombay 400005, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Hesari, H.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Masetti, G.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Potenza, R.; Tricomi, A.; Tuve, C.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Fabbri, F.; Benussi, L.; Bianco, S.; Colafranceschi, S.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cavallo, N.; De Cosa, A.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [De Cosa, A.; Merola, M.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; Gasparini, F.; Gasparini, U.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Ratti, S. P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Romeo, F.; Santocchia, A.; Taroni, S.; Valdata, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Potenza, A.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Pereira, A. 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J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Kim, H.; Choi, M.; Kang, S.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Kim, M. S.; Lee, B.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-de La Cruz, I.; Lopez-Fernandez, R.; Magana Villalba, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Krofcheck, D.; Tam, J.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Brona, G.; Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; Bargassa, P.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Musella, P.; Nayak, A.; Pela, J.; Ribeiro, P. Q.; Seixas, J.; Varela, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Afanasiev, S.; Belotelov, I.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Savina, M.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.; Vorobyev, An.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Dermenev, A.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Popov, V.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Markina, A.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Leonidov, A.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Petrov, P.; Azhgirey, I.; Bayshev, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Ryutin, R.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] State Res Ctr Russian Federat, Inst High Energy Phys, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Chamizo Llatas, M.; Colino, N.; De La Cruz, B.; Delgado Peris, A.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Soares, M. S.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Rodriguez-Marrero, A. Y.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Mussgiller, A.; Sharma, A.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Bona, M.; Breuker, H.; Bunkowski, K.; Camporesi, T.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Dupont-Sagorin, N.; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Georgiou, G.; Gerwig, H.; Gigi, D.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Hartl, C.; Harvey, J.; Hegeman, J.; Hegner, B.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Maeki, T.; Malberti, M.; Malgeri, L.; Mannelli, M.; Masetti, L.; Maurisset, A.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Cortezon, E. Palencia; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Piparo, D.; Polese, G.; Racz, A.; Reece, W.; Antunes, J. Rodrigues; Rolandi, G.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiropulu, M.; Stoye, M.; Tropea, P.; Tsirou, A.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. 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M.; Li, S. W.; Lin, W.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Volpe, R.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Chang, Y. H.; Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Hos, I.; Kangal, E. E.; Topaksu, A. Kayis; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Cerci, D. Sunar; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilin, B.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Isildak, B.; Kaya, M.; Kaya, O.; Ozbek, M.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine. [Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.] Univ Bristol, Bristol, Avon, England. [Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Jackson, J.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Ball, A. H.; Bainbridge, R.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Ferguson, W.; Fulcher, J.; Futyan, D.; Gilbert, A.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; MacEvoy, B. C.; Magnan, A. -M.; Marrouche, J.; Mathias, B.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rogerson, S.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Virdee, T.; Wakefield, S.; Wardle, N.; Wardrope, D.; Whyntie, T.; Sierra, R. Vasquez; Jarvis, C.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.; Liu, H.] Baylor Univ, Waco, TX 76798 USA. [Henderson, C.] Univ Alabama, Tuscaloosa, AL USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; St. John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Bhattacharya, S.; Avetisyan, A.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Luk, M.; Narain, M.; Nguyen, D.; Segala, M.; Sinthuprasith, T.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Liu, H.; Breedon, R.; Breto, G.; Sanchez, M. Calderon De la Barca; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Liu, H.; Babb, J.; Chandra, A.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Long, O. R.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Sudano, E.; Tadel, M.; Tu, Y.; Vartak, A.; Wasserbaech, S.; Wuerthwein, F.; Yagil, A.; Yoo, J.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Apresyan, A.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Shin, K.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Eggert, N.; Gibbons, L. K.; Heltsley, B.; Henriksson, K.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Ryd, A.; Saelim, M.; Salvati, E.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Cooper, W.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lincoln, D.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Pivarski, J.; Pordes, R.; Prokofyev, O.; Sexton-Kennedy, E.; Sharma, S.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Das, S.; De Gruttola, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Hugon, J.; Kim, B.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Low, J. F.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Prescott, C.; Remington, R.; Rinkevicius, A.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Snowball, M.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Gaultney, V.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Kunde, G. J.; Lacroix, F.; Malek, M.; O'Brien, C.; Silkworth, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] UIC, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Iii, R. P. Kenny; Murray, M.; Noonan, D.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Barfuss, A. F.; Bolton, T.; Chakaberia, I.; Ivanov, A.; Khalil, S.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Flucke, G.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Loizides, C.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Stoeckli, F.; Sumorok, K.; Sung, K.; Velicanu, D.; Wenger, E. A.; Wolf, R.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Gude, A.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Pastika, N.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.; Tambe, N.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Jindal, M.; Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Jain, S.; Baur, U.; Godshalk, A.; Iashvili, I.; Kharchilava, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Trocino, D.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Schmitt, M.; Anastassov, A.; Kubik, A.; Odell, N.; Erzynski, R. A. O. Fi; Pollack, B.; Pozdnyakov, A.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Ff, A. Brinkerho; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Vuosalo, C.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Safdi, B.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; De Mattia, M.; Everett, A.; Garfinkel, A. F.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.; Leonard, J.] Purdue Univ, W Lafayette, IN 47907 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Adair, A.; Boulahouache, C.; Ecklund, K. M.; Geurts, F. J. M.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Sakumoto, W.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Malik, S.; Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Eusebi, R.; Flanagan, W.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Osipenkov, I.; Pakhotin, Y.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Libeiro, T.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Issah, M.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Snook, B.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Cox, B.; Francis, B.; Goodell, J.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Herve, A.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Ojalvo, I.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI USA. [Bernardes, C. A.] Univ Fed ABC, Santo Andre, Brazil. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Khalil, S.] British Univ, Cairo, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Bergholz, M.; Lohmann, W.] Brandenburg Tech Univ Cottbus, D-03044 Cottbus, Germany. Eotvos Lorand Univ, Budapest, Hungary. [Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Bakhshiansohi, H.; Fahim, A.; Jafari, A.] Sharif Univ Technol, Tehran, Iran. [Mohammadi, A.] Shiraz Univ, Shiraz, Iran. [Zeinali, M.] Isfahan Univ Technol, Esfahan, Iran. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Cavallo, N.; Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Martini, L.] Univ Siena, I-53100 Siena, Italy. [Adzic, P.; Krpic, D.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Rolandi, G.] Scuola Normale Super Pisa, Pisa, Italy. [Rolandi, G.] Sezione Ist Nazl Fis Nucl, Pisa, Italy. 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Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Gerbaudo, Davide/0000-0002-4463-0878; Heath, Helen/0000-0001-6576-9740 FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN (China); CAS (China); MoST (China); NSFC (China); COLCIEN-CIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences (Estonia); NICPB (Estonia); Academy of Finland (Finland); ME (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST (Russia); MAE (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey); TAEK (Turkey); STFC (United Kingdom); DOE (USA); NSF (USA) FX We thank Johan Alwall, Ed Berger, Qing-Hong Cao, Chuan-Ren Chen, Chong-Sheng Li and Hao Zhang for discussions and help in implementing the Z' model in MAD-GRAPH/MADEVENT. We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIEN-CIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 36 TC 31 Z9 31 U1 1 U2 44 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 005 DI 10.1007/JHEP08(2011)005 PG 27 WC Physics, Particles & Fields SC Physics GA 820JJ UT WOS:000294901400077 ER PT J AU Hornig, A Lee, C Stewart, IW Walsh, JR Zuberi, S AF Hornig, Andrew Lee, Christopher Stewart, Iain W. Walsh, Jonathan R. Zuberi, Saba TI Non-global structure of the O(alpha(2)(s)) dijet soft function SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Jets; NLO Computations; QCD ID EXPANDING HYPERGEOMETRIC-FUNCTIONS; JET CROSS-SECTIONS; QUANTUM CHROMODYNAMICS; WILSON LOOPS; LEADING ORDER; RESUMMATION; QCD; FACTORIZATION; EXPONENTIATION; ANNIHILATION AB High energy scattering processes involving jets generically involve matrix elements of light-like Wilson lines, known as soft functions. These describe the structure of soft contributions to observables and encode color and kinematic correlations between jets. We compute the dijet soft function to O(alpha(2)(s)) as a function of the two jet invariant masses, focusing on terms that have a non-separable dependence on these masses and are not determined by the renormalization group evolution of the soft function. Our results include non-global single and double logarithms, and analytic results for the full set of non-logarithmic contributions as well. Using a recent result for the thrust constant, we present the complete O(alpha(2)(s)) soft function for dijet production in both position and momentum space. C1 [Hornig, Andrew] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Lee, Christopher; Stewart, Iain W.] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA. [Stewart, Iain W.] Harvard Univ, Ctr Fundamental Laws Nat, Cambridge, MA 02138 USA. [Walsh, Jonathan R.; Zuberi, Saba] Ernest Orlando Lawrence Berkeley Natl Lab, Theoret Phys Grp, Berkeley, CA 94720 USA. [Walsh, Jonathan R.; Zuberi, Saba] Univ Calif Berkeley, Ctr Theoret Phys, Berkeley, CA 94720 USA. RP Hornig, A (reprint author), Univ Washington, Dept Phys, Box 351560, Seattle, WA 98195 USA. EM ahornig@uw.edu; clee137@mit.edu; iains@mit.edu; jwalsh@lbl.gov; szuberi@lbl.gov OI Lee, Christopher/0000-0003-2385-7536 FU Offices of Nuclear and High Energy Physics of the U.S. Department of Energy [DE-FG02-96ER40956, DE-FG02-94ER40818, DE-SC003916, DE-AC02-05CH11231]; LHC Theory Initiative under the National Science Foundation [PHY-0705682]; Alexander von Humboldt foundation FX The authors would like to thank the University of California at Berkeley, Lawrence Berkeley National Laboratory, Massachusetts Institute of Technology, University of Washington and Harvard University for hospitality during portions of this work, and CL would like to thank the Aspen Center for Physics for the same. We thank M. Dasgupta and G. Salam for insightful comments and M. Seymour for advice on EVENT2. IS thanks M. Schwartz for useful discussion. This work is supported in part by the Offices of Nuclear and High Energy Physics of the U.S. Department of Energy under Contracts DE-FG02-96ER40956, DE-FG02-94ER40818, DE-SC003916, and DE-AC02-05CH11231. The work of JW was supported in part by a LHC Theory Initiative Postdoctoral Fellowship, under the National Science Foundation grant PHY-0705682, and that of IS by the Alexander von Humboldt foundation. NR 61 TC 41 Z9 41 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD AUG PY 2011 IS 8 AR 054 DI 10.1007/JHEP08(2011)054 PG 55 WC Physics, Particles & Fields SC Physics GA 820JJ UT WOS:000294901400028 ER EF