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176 results on '"Zolnierczuk, P. A."'

1. Polarized Neutron Measurements of the Internal Magnetization of a Ferrimagnet Across its Compensation Temperature

Author

Hughes, C. D., Lopez, K. N., Mulkey, T., Long, J. C., Sarsour, M., Van Meter, M., Samiei, S., Baxter, D. V., Snow, W. M., Lommel, L. M., Zhang, Y., Jiang, P., Stringfellow, E., Zolnierczuk, P., Frost, M., and Odom, M.

Subjects
Condensed Matter - Materials Science
Abstract

We present the first polarized neutron transmission image of a model Ne\'el ferrimagnetic material, polycrystalline terbium iron garnet (Tb$_{3}$Fe$_{5}$O$_{12}$, TbIG for short), as it is taken through its compensation temperature $T_{comp}$ where, according to the theory of ferrimagnetism, the internal magnetization should vanish. Our polarized neutron imaging data and the additional supporting measurements using neutron spin echo spectroscopy and SQUID magnetometry are all consistent with a vanishing internal magnetization at $T_{comp}$., Comment: 15 pages, 15 figures

Published
2024

2. Emergent topological quasiparticle kinetics in constricted nanomagnets

Author

Guo, J., Hill, D., Lauter, V., Stingaciu, L., Zolnierczuk, P., Ullrich, C. A., and Singh, D. K.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The ubiquitous domain wall kinetics under magnetic field or current application describes the dynamic properties in nanostructured magnets. However, when the geometrical size of a nanomagnetic system is constricted to the limiting domain wall length scale, the competing energetics between anisotropy, exchange and dipolar interactions can cause emergent kinetics due to quasiparticle relaxation, similar to bulk magnets of atomic origin. Here, we present a joint experimental and theoretical study to support this argument -- constricted nanomagnets, made of antiferromagnetic and paramagnetic neodymium thin film with honeycomb motif, reveal fast kinetic events at ps time scales due to the relaxation of chiral vortex loop-shaped topological quasiparticles that persist to low temperature in the absence of any external stimuli. Such phenomena are typically found in macroscopic magnetic materials. Our discovery is especially important considering the fact that paramagnets or antiferromagnets have no net magnetization. Yet, the kinetics in neodymium nanostructures is quantitatively similar to that found in ferromagnetic counterparts and only varies with the thickness of the specimen. This suggests that a universal, topological quasiparticle mediated dynamical behavior can be prevalent in nanoscopic magnets, irrespective of the nature of underlying magnetic material., Comment: 26 pages, 11 figures (main text 9 pages, 4 figures; supplementary material 17 pages, 7 figures). arXiv admin note: text overlap with arXiv:2305.00093

Published
2024
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3. Persistent dynamic magnetic state in artificial honeycomb spin ice

Author

Guo, Jiasen, Ghosh, Pousali, Hill, Daniel, Chen, Yiyao, Stingaciu, Laura, Zolnierczuk, Piotr., Ullrich, Carsten A., and Singh, Deepak K.

Subjects
Condensed Matter - Strongly Correlated Electrons, Quantum Physics
Abstract

Topological magnetic charges, arising due to the non-vanishing magnetic flux on spin ice vertices, serve as the origin of magnetic monopoles that traverse the underlying lattice effortlessly. Unlike spin ice materials of atomic origin, the dynamic state in artificial honeycomb spin ice is conventionally described in terms of finite size domain wall kinetics that require magnetic field or current application. Contrary to this common understanding, here we show that thermally tunable artificial permalloy honeycomb lattice manifests a perpetual dynamic state due to self-propelled magnetic charge defect relaxation in the absence of any external tuning agent. Quantitative investigation of magnetic charge defect dynamics using neutron spin echo spectroscopy reveals sub-ns relaxation times that are comparable to monopole's relaxation in bulk spin ices. Most importantly, the kinetic process remains unabated at low temperature where thermal fluctuation is negligible. This suggests that dynamic phenomena in honeycomb spin ice are mediated by quasi-particle type entities, also confirmed by quantum Monte-Carlo simulations that replicate the kinetic behavior. Our research unveils a new `macroscopic' magnetic particle that shares many known traits of quantum particles, namely magnetic monopole and magnon., Comment: 12 figures, 15 pages

Published
2023
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4. Timescales of Cell Membrane Fusion Mediated by SARS-CoV2 Spike Protein and its Receptor ACE2

Author

Hayward, Dominic, Dubey, Purushottam S, Appavou, Marie-Sousai, Holderer, Olaf, Frielinghaus, Henrich, Prevost, Sylvain, Farago, Bela, Sokolova, Anna, Zolnierczuk, Piotr, von Buttlar, Heiner, Braun, Peter, Bugert, Joachim Jakob, Ehmann, Rosina, and Jaksch, Sebastian

Subjects
Physics - Biological Physics, Condensed Matter - Soft Condensed Matter, Physics - Medical Physics
Abstract

In this manuscript we describe the investigation of the SARS-CoV2 membrane fusion timescale by means of small-angle neutron scattering (SANS) using hydrogen/deuterium contrast variation. After the successful production of virus-like vesicles and human-host-cell-like vesicles we were able to follow the fusion of the respective vesicles in real-time. This was done using deuterated and protonated phospholipids in the vesicles in a neutron-contrast matched solvent. The vesicles were identical apart from either the presence or absence of the SARS-CoV2 spike protein. The human-host-cell-like vesicles were carrying an ACE2 receptor protein in all cases. In case of the absence of the spike protein a fusion over several hours was observed in agreement with literature, with a time constant of 4.5 h. In comparison, there was not time-evolution, but immediate fusion of the vesicles when the spike protein was present. Those two figures, fusion over several hours and fusion below 10 s corresponding to the absence or presence of the spike protein allow an upper-limit estimate for the fusion times of virus-like vesicles with the SARS-CoV2 spike protein of 10 s. This very fast fusion, when compared to the case without spike protein it is a factor of 2500, can also help to explain why infection with SARS-CoV2 can be so effective and fast. Studying spike protein variants using our method may explain differences in transmissibility between SARS-CoV2 strains. In addition, the model developed here can potentially be applied to any enveloped virus., Comment: 15 pages, 7 figures, 2 tables

Published
2023

5. Magnetic charge's relaxation propelled electricity in two-dimensional magnetic honeycomb lattice

Author

Chen, Yiyao, Yumnam, George, Guo, Jiasen, Stingaciu, Laura, Zolnierczuk, Piotr, Lauter, Valeria, and Singh, Deepak K.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Other Condensed Matter
Abstract

Emerging new concepts, such as magnetic charge dynamics in two-dimensional magnetic material, can provide novel mechanism for spin based electrical transport at macroscopic length. In artificial spin ice of single domain elements, magnetic charge's relaxation can create an efficient electrical pathway for conduction by generating fluctuations in local magnetic field that couple with conduction electrons spins. In a first demonstration, we show that the electrical conductivity is propelled by more than an order of magnitude at room temperature due to magnetic charge defects sub-picosecond relaxation in artificial magnetic honeycomb lattice. The direct evidence to the proposed electrical conduction mechanism in two-dimensional frustrated magnet points to the untapped potential for spintronic applications in this system.

Published
2021
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6. Influence of salt on membrane rigidity of neu-tral DOPC vesicles

Author

De Mel, Judith U., Gupta, Sudipta, Perera, Rasangi M., Ngo, Ly, Zolnierczuk, Piotr, Bleuel, Markus, Pingali, Sai Venkatesh, and Schneider, Gerald J.

Subjects
Condensed Matter - Soft Condensed Matter, Physics - Biological Physics, Physics - Chemical Physics
Abstract

Salt is a very common molecule in aqueous environments but the question of whether the interactions of monovalent ions Na^+ and Cl^- ,with the neutral heads of phospholipids are impactful enough to change the membrane rigidity is still a mystery. To provide a resolution to this long simmering debate, we investigated the dynamics of DOPC vesicles in the fluid phase with increasing external salt concentration. At higher salt concentrations, we observe an increase in bending rigidity from neutron spin echo spectroscopy (NSE) and an increase in bilayer thickness from small-angle X-ray scattering (SAXS). We compared different models to distinguish membrane undulations, lipid tail motions and the translational diffusion of the vesicles. All the models indicate an increase in bending rigidity by a factor of 1.3 to 3.6. We demonstrate that even for t > 10 ns, and for Q > 0.07 1/{\AA} the observed NSE relaxation spectra is clearly influenced by the translational diffusion of the vesicles. For t < 5 ns, the lipid tail motions dominate the intermediate dynamic structure factor. As the salt concentration increases this contribution diminishes. We introduced a new time-dependent analysis for the bending rigidity that highlights only a limited Zilman-Granek time window where the rigidity is physically meaningful., Comment: 7 figures, 32 pages, submitted to ACS Langmuir

Published
2020

7. Impact of Local Stiffness on Entropy Driven Microscopic Dynamics of Polythiophene

Author

Gupta, Sudipta, Chatterjee, Sourav, Zolnierczuk, Piotr, Nesterov, Evgueni E., and Schneider, Gerald J.

Subjects
Condensed Matter - Soft Condensed Matter
Abstract

We exploited the high temporal and spatial resolution of neutron spin echo spectroscopy to investigate the large-scale dynamics of semiflexible conjugated polymer chains in solutions. We obtained the first experimental demonstration of earlier predicted single chain glassy state. We used a generalized approach of the well-established Zimm model of flexible polymers to describe the relaxation mode spectra of locally stiff polythiophene chains. The Zimm mode analysis confirms the existence of beads with a finite length that corresponds to a reduced number of segmental modes in semiflexible chains. Irrespective of the temperature and the molecular weight of the conjugated polymer, we witness a universal behavior of the local chain stiffness and invariability of the beads length. Our experimental findings indicate possibly minor role of the change in {\pi}-electron conjugation length (and therefore conjugated backbone planar to non-planar conformational transition) in the observed thermochromic behavior of polythiophene but instead point on the major role of chain dynamics in this phenomenon., Comment: 26 pages, 5 figures, Accepted in Scientific Reports

Published
2017
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8. Test of isospin symmetry via low energy $^1$H($\pi^-$,$\pi^o$)$n$ charge exchange

Author

Jia, Y., Gorringe, T. P., Hasinoff, M. D., Kovash, M. A., Ojha, M., Pavan, M. M., Tripathi, S., and Zolnierczuk, P. A.

Subjects
Nuclear Experiment
Abstract

We report measurements of the $\pi^- p \to \pi^o n$ differential cross sections at six momenta (104-143 MeV/c) and four angles (0-40 deg) by detection of $\gamma$-ray pairs from $\pi^o \to \gamma \gamma$ decays using the TRIUMF RMC spectrometer. This region exhibits a vanishing zero-degree cross section from destructive interference between s-- and p--waves, thus yielding special sensitivity to pion-nucleon dynamics and isospin symmetry breaking. Our data and previous data do not agree, with important implications for earlier claims of large isospin violating effects in low energy pion-nucleon interactions., Comment: 5 pages, 3 figures, submitted to Physical Review Letters

Published
2008
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9. 3He Spin-Dependent Cross Sections and Sum Rules

Author

E94010 Collaboration, Slifer, K., Amarian, M., Auerbach, L., Averett, T., Berthot, J., Bertin, P., Bertozzi, B., Black, T., Brash, E., Brown, D., Burtin, E., Calarco, J., Cates, G., Chai, Z., Chen, J. -P., Choi, Seonho, Chudakov, E., Atti, C. Ciofi degli, Cisbani, E., de Jager, C. W., Deur, A., DiSalvo, R., Dieterich, S., Djawotho, P., Finn, M., Fissum, K., Fonvieille, H., Frullani, S., Gao, H., Gao, J., Garibaldi, F., Gasparian, A., Gilad, S., Gilman, R., Glamazdin, A., Glashausser, C., Glockle, W., Golak, J., Goldberg, E., Gomez, J., Gorbenko, V., Hansen, J. -O., Hersman, B., Holmes, R., Huber, G. M., Hughes, E., Humensky, B., Incerti, S., Iodice, M., Jensen, S., Jiang, X., Jones, C., Jones, G., Jones, M., Jutier, C., Kamada, H., Ketikyan, A., Kominis, I., Korsch, W., Kramer, K., Kumar, K., Kumbartzki, G., Kuss, M., Lakuriqi, E., Laveissiere, G., Lerose, J. J., Liang, M., Liyanage, N., Lolos, G., Malov, S., Marroncle, J., McCormick, K., McKeown, R. D., Meziani, Z. -E., Michaels, R., Mitchell, J., Nogga, A., Pace, E., Papandreou, Z., Pavlin, T., Petratos, G. G., Pripstein, D., Prout, D., Ransome, R., Roblin, Y., Rowntree, D., Rvachev, M., Sabatie, F., Saha, A., Salme, G., Scopetta, S., Skibinski, R., Souder, P., Saito, T., Strauch, S., Suleiman, R., Takahashi, K., Teijiro, S., Todor, L., Tsubota, H., Ueno, H., Urciuoli, G., Van der Meer, R., Vernin, P., Voskanian, H., Witala, H., Wojtsekhowski, B., Xiong, F., Xu, W., Yang, J. -C., Zhang, B., and Zolnierczuk, P.

Subjects
Nuclear Experiment
Abstract

We present a measurement of the spin-dependent cross sections for the \vec{^3He}(\vec{e},e')X} reaction in the quasielastic and resonance regions at four-momentum transfer 0.1 < Q^2< 0.9 GeV^2. The spin-structure functions have been extracted and used to evaluate the nuclear Burkhardt--Cottingham and extended GDH sum rules for the first time. Impulse approximation and exact three-body Faddeev calculations are also compared to the data in the quasielastic region., Comment: Final version

Published
2008
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10. Improved Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant

Author

MuLan Collaboration, Chitwood, D. B., Banks, T. I., Barnes, M. J., Battu, S., Carey, R. M., Cheekatmalla, S., Clayton, S. M., Crnkovic, J., Crowe, K. M., Debevec, P. T., Dhamija, S., Earle, W., Gafarov, A., Giovanetti, K., Gorringe, T. P., Gray, F. E., Hance, M., Hertzog, D. W., Hare, M. F., Kammel, P., Kiburg, B., Kunkle, J., Lauss, B., Logashenko, I., Lynch, K. R., McNabb, R., Miller, J. P., Mulhauser, F., Onderwater, C. J. G., Ozben, C. S., Peng, Q., Polly, C. C., Rath, S., Roberts, B. L., Tishchenko, V., Wait, G. D., Wasserman, J., Webber, D. M., Winter, P., and Zolnierczuk, P. A.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

The mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector array. The result, tau_mu = 2.197013(24) us, is in excellent agreement with the previous world average. The new world average tau_mu = 2.197019(21) us determines the Fermi constant G_F = 1.166371(6) x 10^-5 GeV^-2 (5 ppm). Additionally, the precision measurement of the positive muon lifetime is needed to determine the nucleon pseudoscalar coupling g_P., Comment: As published version (PRL, July 2007)

Published
2007
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11. Double radiative pion capture on hydrogen and deuterium and the nucleon's pion cloud

Author

Tripathi, S., Armstrong, D. S., Christy, M. E., Clark, J. H. D., Gorringe, T. P., Hasinoff, M. D., Kovash, M. A., Wright, D. H., and Zolnierczuk, P. A.

Subjects
Nuclear Experiment
Abstract

We report measurements of double radiative capture in pionic hydrogen and pionic deuterium. The measurements were performed with the RMC spectrometer at the TRIUMF cyclotron by recording photon pairs from pion stops in liquid hydrogen and deuterium targets. We obtained absolute branching ratios of $(3.02 \pm 0.27 (stat.) \pm 0.31 (syst.)) \times 10^{-5}$ for hydrogen and $(1.42 \pm ^{0.09}_{0.12} (stat.) \pm 0.11 (syst.)) \times 10^{-5}$ for deuterium, and relative branching ratios of double radiative capture to single radiative capture of $(7.68 \pm 0.69(stat.) \pm 0.79(syst.)) \times 10^{-5}$ for hydrogen and $(5.44 \pm^{0.34}_{0.46}(stat.) \pm 0.42(syst.)) \times 10^{-5}$ for deuterium. For hydrogen, the measured branching ratio and photon energy-angle distributions are in fair agreement with a reaction mechanism involving the annihilation of the incident $\pi^-$ on the $\pi^+$ cloud of the target proton. For deuterium, the measured branching ratio and energy-angle distributions are qualitatively consistent with simple arguments for the expected role of the spectator neutron. A comparison between our hydrogen and deuterium data and earlier beryllium and carbon data reveals substantial changes in the relative branching ratios and the energy-angle distributions and is in agreement with the expected evolution of the reaction dynamics from an annihilation process in S-state capture to a bremsstrahlung process in P-state capture. Lastly, we comment on the relevance of the double radiative process to the investigation of the charged pion polarizability and the in-medium pion field., Comment: 44 pages, 7 tables, 13 figures, submitted to Phys. Rev. C

Published
2007
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12. Ortho-para transition rate in $\mu$-molecular hydrogen and the proton's induced pseudoscalar coupling $g_p$

Author

Clark, J. H. D., Armstrong, D. S., Gorringe, T. P., Hasinoff, M. D., King, P. M., Stocki, T. J., Tripathi, S., Wright, D. H., and Zolnierczuk, P. A.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

We report a measurement of the ortho-para transition rate in the p$\mu$p molecule. The experiment was conducted at TRIUMF via the measurement of the time dependence of the 5.2 MeV neutrons from muon capture in liquid hydrogen. The measurement yielded an ortho-para rate $\Lambda_{op} = (11.1 \pm 1.7 \pm^{0.9}_{0.6}) \times 10^4$ s$^{-1}$ that is substantially larger than the earlier result of Bardin {\it et al.} We discuss the striking implications for the proton's induced pseudoscalar coupling $g_p$., Comment: 4 pages, 3 figures, submitted to Phys. Rev. Lett

Published
2005
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13. Systematic study of three-nucleon force effects in the cross section of the deuteron-proton breakup at 130 MeV

Author

Kistryn, St., Stephan, E., Biegun, A., Bodek, K., Deltuva, A., Epelbaum, E., Ermisch, K., Gloeckle, W., Golak, J., Kalantar-Nayestanaki, N., Kamada, H., Kis, M., Klos, B., Kozela, A., Kuros-Zolnierczuk, J., Mahjour-Shafiei, M., Meissner, U. -G., Micherdzinska, A., Nogga, A., Sauer, P. U., Skibinski, R., Sworst, R., Witala, H., Zejma, J., and Zipper, W.

Subjects
Nuclear Experiment
Abstract

High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV are presented for 72 kinematically complete configurations. The data cover a large region of the available phase space, divided into a systematic grid of kinematical variables. They are compared with theoretical predictions, in which the full dynamics of the three-nucleon (3N) system is obtained in three different ways: realistic nucleon-nucleon (NN) potentials are combined with model 3N forces (3NF's) or with an effective 3NF resulting from explicit treatment of the Delta-isobar excitation. Alternatively, the chiral perturbation theory approach is used at the next-to-next-to-leading order with all relevant NN and 3N contributions taken into account. The generated dynamics is then applied to calculate cross-section values by rigorous solution of the 3N Faddeev equations. The comparison of the calculated cross sections with the experimental data shows a clear prefernce for the predictions in which the 3NF's are included. The majority of the experimental data points is well reproduced by the theoretical predictions. The remaining discrepancies are investigated by inspecting cross sections integrated over certain kinematical variables. The procedure of global comparisons leads to establishing regularities in disagreements between the experimental data and the theoretically predicted values of the cross sections. They indicate deficiencies still present in the assumed models of the 3N system dynamics., Comment: 27 pages, 18 figures, submitted to Physical Review C

Published
2005
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14. Experimental search for evidence of the three-nucleon force and a new analysis method

Author

Engblom, P. Thorngren, Meyer, H. O., von Przewoski, B., Kuros-Zolnierczuk, J., Whitaker, T. J., Doskow, J., Lorentz, B., Pancella, P. V., Pollock, R. E., Rathmann, F., Rinckel, T., Wise, T., Witala, H., Golak, J., Kamada, H., Nogga, A., and Skibinski, R.

Subjects
Nuclear Experiment
Abstract

A research program with the aim of investigating the spin dependence of the three-nucleon continuum in pd collisions at intermediate energies was carried out at IUCF using the Polarized INternal Target EXperiments (PINTEX) facility. In the elastic scattering experiment at 135 and 200 MeV proton beam energies a total of 15 independent spin observables were obtained. The breakup experiment was done with a vector and tensor polarized deuteron beam of 270 MeV and an internal polarized hydrogen gas target. We developed a novel technique for the analysis of the breakup observables, the sampling method. The new approach takes into account acceptance and non-uniformities of detection efficiencies and is suitable for any kinematically complete experiment with three particles in the final state., Comment: Contribution to the 19th European Few-Body Conference, Groningen Aug. 23-27, 2004

Published
2004
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15. Search for exotic baryons in double radiative capture on pionic hydrogen

Author

Zolnierczuk, P. A., Armstrong, D. S., Christy, E., Clark, J. H. D., Gorringe, T. P., Hasinoff, M. D., Kovash, M. A., Tripathi, S., and Wright, D. H.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

We report a search for low-lying exotic baryons via double radiative capture on pionic hydrogen. The data were collected at the TRIUMF cyclotron using the RMC spectrometer by detecting gamma-ray pairs from pion stops in liquid hydrogen. No evidence was found to support an earlier claim for exotic baryons of masses 1004 and 1044 MeV/$c^2$. We obtain upper limits on the branching ratios for double radiative capture via these exotic states of $< 3 \times 10^{-6}$ and $< 4 \times 10^{-6}$ respectively., Comment: 13 pages, 4 figures

Published
2004
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16. Faddeev calculations of break-up reactions with realistic experimental constraints

Author

Kuros-Zolnierczuk, J., Engblom, P. Thorngren, Meyer, H-O., Whitaker, T. J., Witala, H., Golak, J., Kamada, H., Nogga, A., and Skibinski, R.

Subjects
Nuclear Theory
Abstract

We present a method to integrate predictions from a theoretical model of a reaction with three bodies in the final state over the region of phase space covered by a given experiment. The method takes into account the true experimental acceptance, as well as variations of detector efficiency, and eliminates the need for a Monte-Carlo simulation of the detector setup. The method is applicable to kinematically complete experiments. Examples for the use of this method include several polarization observables in dp break-up at 270 MeV. The calculations are carried out in the Faddeev framework with the CD Bonn nucleon-nucleon interaction, with or without the inclusion of an additional three-nucleon force., Comment: 18 pages, 9 figures

Published
2004
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17. Search for d^* Dibaryon by Double-radiative Capture on Pionic Deuterium

Author

Zolnierczuk, P. A., Gorringe, T. P., Hasinoff, M. D., Kovash, M. A., Tripathi, S., and Wright, D. H.

Subjects
Nuclear Experiment
Abstract

We report a search for d^* dibaryon production by double-radiative capture on pionic deuterium. The experiment was conducted at the TRIUMF cyclotron using the RMC cylindrical pair spectrometer, and detected gamma-ray coincidences following pion stops in liquid deuterium. We found no evidence for narrow dibaryons, and obtained a branching ratio upper limit, BR < 6.7 times 10^{-6} (90% C.L.), for narrow d^* production in the mass range from 1920 to 1980 MeV. Replaced with Physics Letter B accepted version and corrected normalization., Comment: 9 pages, 4 figures

Published
2002
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18. Observation of double radiative capture on pionic hydrogen

Author

Tripathi, S., Armstrong, D. S., Christy, M. E., Clark, J. H. D., Gorringe, T. P., Hasinoff, M. D., Kovash, M. A., Wright, D. H., and Zolnierczuk, P. A.

Subjects
Nuclear Experiment
Abstract

We report the first observation of double radiative capture on pionic hydrogen. The experiment was conducted at the TRIUMF cyclotron using the RMC spectrometer, and detected $\gamma$--ray coincidences following $\pi^-$ stops in liquid hydrogen. We found the branching ratio for double radiative capture to be $(3.05 \pm 0.27(stat.) \pm 0.31(syst.)) \times 10^{-5}$. The measured branching ratio and angle-energy distributions support the theoretical prediction of a dominant contribution from the $\pi \pi \to \gamma \gamma$ annihilation mechanism., Comment: 4 Pages, 4 Figures. accepted for publication in Phys. Rev. Lett

Published
2002
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19. Three-Nucleon Force Effects in Nucleon Induced Deuteron Breakup: Comparison to Data (II)

Author

Kuros-Zolnierczuk, J., Witala, H., Golak, J., Kamada, H., Nogga, A., Skibinski, R., and Glockle, W.

Subjects
Nuclear Theory
Abstract

Selected Nd breakup data over a wide energy range are compared to solutions of Faddeev equations based on modern high precision NN interactions alone and adding current three-nucleon force models. Unfortunately currently available data probe phase space regions for the final three nucleon momenta which are rather insensitive to 3NF effects as predicted by current models. Overall there is good to fair agreement between present day theory and experiment but also some cases exist with striking discrepancies. Regions in the phase space are suggested where large 3NF effects can be expected., Comment: 33 pages, 24 ps figures, 9 gif figures

Published
2002
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20. Three-Nucleon Force Effects in Nucleon Induced Deuteron Breakup: Predictions of Current Models (I)

Author

Kuros-Zolnierczuk, J., Witala, H., Golak, J., Kamada, H., Nogga, A., Skibinski, R., and Glockle, W.

Subjects
Nuclear Theory
Abstract

An extensive study of three-nucleon force effects in the entire phase space of the nucleon-deuteron breakup process, for energies from above the deuteron breakup threshold up to 200 MeV, has been performed. 3N Faddeev equations have been solved rigorously using the modern high precision nucleon-nucleon potentials AV18, CD Bonn, Nijm I, II and Nijm 93, and also adding 3N forces. We compare predictions for cross sections and various polarization observables when NN forces are used alone or when the two pion-exchange Tucson-Melbourne 3NF was combined with each of them. In addition AV18 was combined with the Urbana IX 3NF and CD Bonn with the TM' 3NF, which is a modified version of the TM 3NF, more consistent with chiral symmetry. Large but generally model dependent 3NF effects have been found in certain breakup configurations, especially at the higher energies, both for cross sections and spin observables. These results demonstrate the usefulness of the kinematically complete breakup reaction in testing the proper structure of 3N forces., Comment: 42 pages, 20 ps figures, 2 gif figures

Published
2002
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21. Few-Nucleon Calculations and Correlations

Author

Glockle, W., Kamada, H., Golak, J., Nogga, A., Witala, H., Skibinski, R., and Kuros-Zolnierczuk, J.

Subjects
Nuclear Theory
Abstract

Some present day results for few-nucleon bound state, two-nucleon correlation functions and scattering observables are briefly reviewed. The old idea of the Coulomb sum rule as a way to extract the pp correlation function is reconsidered. It appears to be an ideal case to probe properties of the density operator and the ground state wave functions without disturbances of final state interactions (FSI) in exclusive electron scattering on 3He. Also exclusive photodisintegration of 3He is regarded which appears to be promising to identify 3N force effects., Comment: 28 pages, 21 figs. Presented at 5th workshop on "e.-m. induced two-hadron emission"; Lund, Sweden, June 13-16, 2001, to be published in Acta Phys. Pol. B

Published
2001

22. Nucleon-deuteron elastic scattering as a tool to probe properties of three-nucleon forces

Author

Witala, H., Gloeckle, W., Golak, J., Nogga, A., Kamada, H., Skibiński, R., and Kuros-Zolnierczuk, J.

Subjects
Nuclear Theory
Abstract

Faddeev equations for elastic Nd scattering have been solved using modern NN forces combined with the Tucson-Melbourne two-pion exchange three-nucleon force, with a modification thereof closer to chiral symmetry and the Urbana IX three-nucleon force. Theoretical predictions for the differential cross section and several spin observables using NN forces only and NN forces combined with three-nucleon force models are compared to each other and to the existing data. A wide range of energies from 3 to 200 MeV is covered. Especially at the higher energies striking three-nucleon force effects are found, some of which are supported by the still rare set of data, some are in conflict with data and thus very likely point to defects in those three-nucleon force models., Comment: 30 pages, 14 Postscript figures; now minor changes in figures and references

Published
2000
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23. The $(\pi^-,\gamma\gamma)$ program at TRIUMF

Author

Zolnierczuk, Piotr A.

Subjects
Nuclear Experiment
Abstract

We report the first observation of the doubly-radiative decay mode of pionic hydrogen (pi- p --> gamma gamma n) and and deuterium (pi- d --> gamma gamma X) using the RMC pair spectrometer at TRIUMF. The process is interesting in the context of the pi-Compton scattering and the chiPT predictions of the pion polarizability We present our preliminary values for the B.R.(pi- p --> gamma gamma n)=3.8x10^-5 and B.R.(pi- d --> gamma gamma X)=1.6x10^-5. Our pi- p data indicates the dominance of pi pi --> gamma gamma mechanism. The pi- d data shows no evidence for the d1* dibaryon., Comment: Talk at MESON'2000 conference in Cracow, Poland (4 pages, 2 figures)

Published
2000

24. Measurement of p + d -> 3He + eta in S(11) Resonance

Author

Betigeri, M., Bojowald, J., Budzanowski, A., Chatterjee, A., Drochner, M., Ernst, J., Foertsch, S., Freindl, L., Frekers, D., Garske, W., Grewer, K., Hamacher, A., Igel, S., Ilieva, J., Jahn, R., Jarczyk, L., Kemmerling, G., Kilian, K., Kliczewski, S., Klimala, W., Kolev, D., Kutsarova, T., Lieb, J., Lippert, G., Machner, H., Magiera, A., Nann, H., Pentchev, L., Plendl, H. S., Protic, D., Razen, B., von Rossen, P., Roy, B. R., Siudak, R., Smyrski, J., Strzalkowski, A., Tsenov, R., Zolnierczuk, P. A., and Zwoll, K.

Subjects
Nuclear Experiment
Abstract

We have measured the reaction p + d -> 3He + eta at a proton beam energy of 980 MeV, which is 88.5 MeV above threshold using the new ``germanium wall'' detector system. A missing--mass resolution of the detector system of 2.6% was achieved. The angular distribution of the meson is forward peaked. We found a total cross section of (573 +- 83(stat.) +- 69(syst.))nb. The excitation function for the present reaction is described by a Breit Wigner form with parameters from photoproduction., Comment: 8 pages, 2 figures, corrected typos in header

Published
1999
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25. The pi- p --> gamma gamma n Reaction and Pion Compton Scattering

Author

Zolnierczuk, Piotr A.

Subjects
Nuclear Experiment
Abstract

We propose to measure the two--photon capture mode of pionic hydrogen using the RMC pair spectrometer at the TRIUMF cyclotron. Currently, only an experimental upper limit of B.R.<= 5.5E-4 is available for the two-gamma capture mode. Our new data will critically test the theoretical calculations and the intriguing predicted dominance of the pi pi --> gamma gamma annihilation graph. More speculatively, since crossing symmetry relates pi pi --> gamma gamma to gamma pi --> gamma pi, this threshold reaction may be a novel probe of the pion's electric polarizability. We show results of our 1997 engineering run and Monte Carlo studies for the two photon capture mode of pionic hydrogen and carbon. We also present our preliminary upper limit for the pi- p --> gamma gamma n B.R. <= 2.8E-4., Comment: 4 pages, 3 figures Presented at MESON'98 workshop in Cracow, Poland

Published
1998

30. Quantifying structure and dynamics of bound and bulk polymer in tailor-made rubber-silica nanocomposites

Author

Philippe, A.-M., primary, Sill, C., additional, Westermann, S., additional, Allgaier, J., additional, Staropoli, M., additional, Monkenbusch, M., additional, Gerstner, D., additional, Fleming, Y., additional, Wischnewski, A., additional, Hoffmann, I., additional, Zolnierczuk, P., additional, Do, C., additional, and Pyckhout-Hintzen, W., additional

Published
2022
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36. Plane-wave impulse approximation extraction of the neutron magnetic form factor from quasielastic 3He(e,e′) at Q2=0.3 to 0.6 (GeV/c)2

Author

Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, Kent State University, Kent, Ohio 44242, Temple University, Philadelphia, Pennsylvania 19122, College of William and Mary, Williamsburg, Virginia 23187, University of New Hampshire, Durham, New Hampshire 03824, Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, Princeton University, Princeton, New Jersey 08544, Duke University, Durham, North Carolina 27708, University of Kentucky, Lexington, Kentucky 40506, LPC, Université Blaise Pascal, F-63177 Aubière, France, Rutgers University, Piscataway, New Jersey 08855, Kharkov Institute of Physics and Technology, Kharkov 310108, Ukraine, Ruhr-Universität Bochum, D-44780 Bochum, Germany, Institute of Physics, Jagellonian University, PL-30059 Cracow, Poland, University of Virginia, Charlottesville, Virginia 22903, Syracuse University, Syracuse, New York 13244, California Institute of Technology, Pasadena, California 91125, Ruhr-Universität Bochum, D-44780 Bochum, Germany (Kyushu institute of Technology, Fukuoka, Japan), INFN, Sezione di Pisa, Pisa, Italy, California State University, Los Angeles, Los Angeles, California 90032, Thomas Jefferson National Accelerator Facility, Newport, INFN, Sezione Tor Vergata, I-00133 Rome, Italy, INFN, Sezione di Roma, I-00185 Rome, Italy, Old Dominion University, Norfolk, Virginia 23508, North Carolina Central University, Durham, North Carolina 27707, Xu, W, Anderson, B, Auberbach, L, Averett, T, Bertozzi, W, Black, T, Calarco, J, Cardman, L, Cates, G.D, Chai, Z.W, Chen, J.P, Choi, S, Chudakov, E, Churchewell, S, Corrado, G.S, Crawford, C, Dale, D, Deur, A, Djawotho, P, Donnelly, T.W, Dutta, D, Finn, J.M., Gao, H, Gilman, R, Glamazdin, A.V, Glashausser, C, Glockle, W, Golak, J, Gomez, J, Gorbenko, V.G, Hansen, J.-O, Hersman, F.W., Higinbotham, D.W., Holmes, R, Howell, C.R., Hughes, E, Humensky, B, Incerti, S, Jager, C.W.de, Jensen, J.S, Jiang, X, Jones, C.E., Jones, M, Kahl, R, Kamada, Hiroyuki, Kievsky, A, Kominis, I, Korsch, W, Kramer, K, Kumbartzki, G, Kuss, M, Lakurigi, E, Liang, M, Liyanage, N, LeRose, J, Malov, S, Margaziotis, D.J, Martin, J.W, McCormick, K, Mckeown, R.D, Mcllhany, K, Meziani, Z.-E, Michaels, R, Miller, G.W, Mitchell, J, Nanda, S, Pace, E, Pavlin, T, Petratos, G.G, Pomatsalyuk, R.I, Pristein, D, Prout, D, Ransome, R.D., Roblin, Y, Rvachev, M, Saha, A, Salme, G, Schnee, M, Shin, T, Slifer, K, Souder, P.A, Strauch, S, Suleiman, R, Sutter, M, Tipton, B, Todor, L, Viviani, M, Vlahovic, B, Watoson, J, Williamson, C.F, Witala, H, Wojtsekhowski, B, Xiong, F, Yeh, J, Zolnierczuk, P, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, Kent State University, Kent, Ohio 44242, Temple University, Philadelphia, Pennsylvania 19122, College of William and Mary, Williamsburg, Virginia 23187, University of New Hampshire, Durham, New Hampshire 03824, Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, Princeton University, Princeton, New Jersey 08544, Duke University, Durham, North Carolina 27708, University of Kentucky, Lexington, Kentucky 40506, LPC, Université Blaise Pascal, F-63177 Aubière, France, Rutgers University, Piscataway, New Jersey 08855, Kharkov Institute of Physics and Technology, Kharkov 310108, Ukraine, Ruhr-Universität Bochum, D-44780 Bochum, Germany, Institute of Physics, Jagellonian University, PL-30059 Cracow, Poland, University of Virginia, Charlottesville, Virginia 22903, Syracuse University, Syracuse, New York 13244, California Institute of Technology, Pasadena, California 91125, Ruhr-Universität Bochum, D-44780 Bochum, Germany (Kyushu institute of Technology, Fukuoka, Japan), INFN, Sezione di Pisa, Pisa, Italy, California State University, Los Angeles, Los Angeles, California 90032, Thomas Jefferson National Accelerator Facility, Newport, INFN, Sezione Tor Vergata, I-00133 Rome, Italy, INFN, Sezione di Roma, I-00185 Rome, Italy, Old Dominion University, Norfolk, Virginia 23508, North Carolina Central University, Durham, North Carolina 27707, Xu, W, Anderson, B, Auberbach, L, Averett, T, Bertozzi, W, Black, T, Calarco, J, Cardman, L, Cates, G.D, Chai, Z.W, Chen, J.P, Choi, S, Chudakov, E, Churchewell, S, Corrado, G.S, Crawford, C, Dale, D, Deur, A, Djawotho, P, Donnelly, T.W, Dutta, D, Finn, J.M., Gao, H, Gilman, R, Glamazdin, A.V, Glashausser, C, Glockle, W, Golak, J, Gomez, J, Gorbenko, V.G, Hansen, J.-O, Hersman, F.W., Higinbotham, D.W., Holmes, R, Howell, C.R., Hughes, E, Humensky, B, Incerti, S, Jager, C.W.de, Jensen, J.S, Jiang, X, Jones, C.E., Jones, M, Kahl, R, Kamada, Hiroyuki, Kievsky, A, Kominis, I, Korsch, W, Kramer, K, Kumbartzki, G, Kuss, M, Lakurigi, E, Liang, M, Liyanage, N, LeRose, J, Malov, S, Margaziotis, D.J, Martin, J.W, McCormick, K, Mckeown, R.D, Mcllhany, K, Meziani, Z.-E, Michaels, R, Miller, G.W, Mitchell, J, Nanda, S, Pace, E, Pavlin, T, Petratos, G.G, Pomatsalyuk, R.I, Pristein, D, Prout, D, Ransome, R.D., Roblin, Y, Rvachev, M, Saha, A, Salme, G, Schnee, M, Shin, T, Slifer, K, Souder, P.A, Strauch, S, Suleiman, R, Sutter, M, Tipton, B, Todor, L, Viviani, M, Vlahovic, B, Watoson, J, Williamson, C.F, Witala, H, Wojtsekhowski, B, Xiong, F, Yeh, J, and Zolnierczuk, P

Abstract

type:Journal Article, A high precision measurement of the transverse spin-dependent asymmetry AT′ in 3He(e,e′) quasielastic scattering was performed in Hall A at Jefferson Lab at values of the squared four-momentum transfer, Q2, between 0.1 and 0.6 (GeV/c)2. AT′ is sensitive to the neutron magnetic form factor, GMn. Values of GMn at Q2=0.1 and 0.2 (GeV/c)2, extracted using Faddeev calculations, were reported previously. Here, we report the extraction of GMn for the remaining Q2 values in the range from 0.3 to 0.6 (GeV/c)2 using a plane-wave impulse approximation calculation. The results are in good agreement with recent precision data from experiments using a deuterium target., source:http://link.aps.org/abstract/PRC/v67/e012201, source:http://www.aps.org

Published
2017

37. 3He Spin-Dependent Cross Sections and Sum Rules

Author

Temple University, Yarevan Physics Institute, Thomas Jefferson National Accelerator Facility, LPC IN2P3/CNRS, Universite´ Blaise Pascal, Massachusetts Institute of Technology, University of Regina, Kharkov Institute of Physics and Technology, University of New Hampshire, California Institute of Technology, Kent State University, Rutgers, The State University of New Jersey, Old Dominion University, INFN, Sezione di Perugia, INFN, Sezione Roma I, M. Smoluchowski Institute of Physics, Jagiellonian University, Syracuse University, Tohoku University, INFN, Sezione Sanita, CEA Saclay,9INFN, Sezione Tor Vergata, Yerevan Physics Institute, Chungnam National University, Princeton University, University of Kentucky, The College of William and Mary, Hampton University, Institut fu¨r Theoretische Physik II, Ruhr Universita¨t Bochum, Temple UniversityINFNSezione di Perugia, INFN, Sezione Sanita1California Institute of Technology, Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, University of Massachusetts-Amherst, CEA Saclay, Institut fu¨r Kernphysik, INFN, Sezione Tor Vergata, Slifer, K, Amarian, M, Auerbach, L, Averett, T, Berthot, J, Bertin, P, Bertozzi, B, Black, T, Brash, E, Brown, D, Burtin, R, Nogga, A, Pace, E, Papandreou, Z, Pavlin, T, Petratos, G.G, Pripstein, D, Prout, D, Ransome, R, Roblin, Y, Rowntree, D, Saha, A, Rvachev, M, Sabatie´, F, Salme´, G, Scopetta, S, Skibinski, R, Souder, P, Saito, T, Strauch, S, Suleiman, R, Takahashi, K, Teijiro, S, Ueno, H, Todor, L, Tsubota, H, Urciuoli, G, Van, der Meer R, Vernin, P, Voskanian, H, Witala, H, Wojtsekhowski, B, Xiong, F, Xu, W, Yang, J.-C, Calarco, J, Zhang, B, Zolnierczuk, P, Cates, G, Chai, Z, Chen, J.-P, Choi, Seonho, Chudakov, E, Ciofi, degli Atti C, Cisbani, E, deJager, C.W, Deur, A, DiSalvo, R, Dietorich, S, Djawotho, P, Finn, M, Fissum, K, Fonvieille, H, Frullani, S, Gao, H, Gao, J, Garibaldi, F, Gasparian, A, Gilad, S, Gilman, R, Glamadin, A, Glashausser, C, Glo¨ckle, W, Golak, J, Goldberg, E, Gomez, J, Gorbenko, V, Hansen, J.-O, Hersman, B, Holmes, R, Huber, G.M, Hughes, E, Humensky, B, Incerti, S, Iodice, M, Jensen, S, Jiang, X, Jones, C, Jones, G, Jones, M, Jutier, C, Kamada, H, Ketikyan, A, Kominis, I, Korsch, W, Kramer, K, Kumae, K, Kumbartzki, G, Kuss, M, Lakuriqi, E, Laveissier, G, Lerose, J.J, Liang, M, Liyanage, N, Lolos, G, Malov, S, Marroncle, J, McCormick, K, McKeown, R.D, Meziani, Z.-E, Michaels, R, Mitchell, J, Temple University, Yarevan Physics Institute, Thomas Jefferson National Accelerator Facility, LPC IN2P3/CNRS, Universite´ Blaise Pascal, Massachusetts Institute of Technology, University of Regina, Kharkov Institute of Physics and Technology, University of New Hampshire, California Institute of Technology, Kent State University, Rutgers, The State University of New Jersey, Old Dominion University, INFN, Sezione di Perugia, INFN, Sezione Roma I, M. Smoluchowski Institute of Physics, Jagiellonian University, Syracuse University, Tohoku University, INFN, Sezione Sanita, CEA Saclay,9INFN, Sezione Tor Vergata, Yerevan Physics Institute, Chungnam National University, Princeton University, University of Kentucky, The College of William and Mary, Hampton University, Institut fu¨r Theoretische Physik II, Ruhr Universita¨t Bochum, Temple UniversityINFNSezione di Perugia, INFN, Sezione Sanita1California Institute of Technology, Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, University of Massachusetts-Amherst, CEA Saclay, Institut fu¨r Kernphysik, INFN, Sezione Tor Vergata, Slifer, K, Amarian, M, Auerbach, L, Averett, T, Berthot, J, Bertin, P, Bertozzi, B, Black, T, Brash, E, Brown, D, Burtin, R, Nogga, A, Pace, E, Papandreou, Z, Pavlin, T, Petratos, G.G, Pripstein, D, Prout, D, Ransome, R, Roblin, Y, Rowntree, D, Saha, A, Rvachev, M, Sabatie´, F, Salme´, G, Scopetta, S, Skibinski, R, Souder, P, Saito, T, Strauch, S, Suleiman, R, Takahashi, K, Teijiro, S, Ueno, H, Todor, L, Tsubota, H, Urciuoli, G, Van, der Meer R, Vernin, P, Voskanian, H, Witala, H, Wojtsekhowski, B, Xiong, F, Xu, W, Yang, J.-C, Calarco, J, Zhang, B, Zolnierczuk, P, Cates, G, Chai, Z, Chen, J.-P, Choi, Seonho, Chudakov, E, Ciofi, degli Atti C, Cisbani, E, deJager, C.W, Deur, A, DiSalvo, R, Dietorich, S, Djawotho, P, Finn, M, Fissum, K, Fonvieille, H, Frullani, S, Gao, H, Gao, J, Garibaldi, F, Gasparian, A, Gilad, S, Gilman, R, Glamadin, A, Glashausser, C, Glo¨ckle, W, Golak, J, Goldberg, E, Gomez, J, Gorbenko, V, Hansen, J.-O, Hersman, B, Holmes, R, Huber, G.M, Hughes, E, Humensky, B, Incerti, S, Iodice, M, Jensen, S, Jiang, X, Jones, C, Jones, G, Jones, M, Jutier, C, Kamada, H, Ketikyan, A, Kominis, I, Korsch, W, Kramer, K, Kumae, K, Kumbartzki, G, Kuss, M, Lakuriqi, E, Laveissier, G, Lerose, J.J, Liang, M, Liyanage, N, Lolos, G, Malov, S, Marroncle, J, McCormick, K, McKeown, R.D, Meziani, Z.-E, Michaels, R, and Mitchell, J

Abstract

type:Journal Article, We present a measurement of the spin-dependent cross sections for the (3)(He) over right arrow((e) over right arrow ,e')X reaction in the quasielastic and resonance regions at a four-momentum transfer 0.1 <= Q(2)<= 0.9 GeV2. The spin-structure functions have been extracted and used to evaluate the nuclear Burkhardt-Cottingham and extended Gerasimov-Drell-Hearn sum rules for the first time. The data are also compared to an impulse approximation calculation and an exact three-body Faddeev calculation in the quasielastic region., source:https://doi.org/10.1103/PhysRevLett.101.022303, source:http://www.aps.org

Published
2017

39. Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic 3He(pol)(e(pol),e') at Q^2 = 0.1 - 0.6 (GeV/c)^2

Author

Anderson, B., Auberbach, L., Averett, T., Bertozzi, W., Black, T., Calarco, J., Cardman, L., Cates, G.D., Chai, Z.W., Chen, J.P., Choi, Seonho, Chudakov, E., Churchwell, S., Corrado, G.S., Crawford, C., Dale, D., Deur, A., Djawotho, P., Dutta, D., Finn, J.M., Gao, H., Gilman, R., Glamazdin, A.V., Glashausser, C., Glockle, W., Golak, J., Gomez, J., Gorbenko, V.G., Hansen, J.O., Hersman, F.W., Higinbotham, D.W., Holmes, R., Howell, C.R., Hughes, E., Humensky, B., Incerti, S., De Jager, C.W., Jensen, J.S., Jiang, X., Jones, C.E., Jones, M., Kahl, R., Kamada, H., Kievsky, A., Kominis, I., Korsch, W., Kramer, K., Kumbartzki, G., Kuss, M., Lakuriqi, E., Liang, M., Liyanage, N., LeRose, J., Malov, S., Margaziotis, D.J., Martin, J.W., McCormick, K., McKeown, R.D., McIlhany, K., Meziani, Z.E., Michaels, R., Miller, G.W., Mitchell, J., Nanda, S., Pace, E., Pavlin, T., Petratos, G.G., Pomatsalyuk, R.I., Pripstein, D., Prout, D., Ransome, R.D., Roblin, Y., Rvachev, M., Saha, A., Salmè, G., Schnee, M., Seely, J., Shin, T., Slifer, K., Souder, P.A., Strauch, S., Suleiman, R., Sutter, M., Tipton, B., Todor, L., Viviani, M., Vlahovic, B., Watson, J., Williamson, C.F., Witala, H., Wojtsekhowski, B., Xiong, F., Xu, Wei-Jiang, Yeh, J., Zolnierczuk, P., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Jefferson Lab E95-001, and Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
13.40.Gp, 14.20.Dh, 24.70. +s, 25.10. +s, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

We have measured the spin-dependent transverse asymmetry, A_T', in quasi-elastic inclusive electron scattering from polarized 3He with high precision at Q^2 = 0.1 to 0.6 (GeV/c)^2. The neutron magnetic form factor, GMn, was extracted at Q^2 = 0.1 and 0.2 (GeV/c)^2 using a non-relativistic Faddeev calculation that includes both final-state interactions (FSI) and meson-exchange currents (MEC). In addition, GMn was extracted at Q^2 = 0.3 to 0.6 (GeV/c)^2 using a Plane Wave Impulse Approximation calculation. The accuracy of the modeling of FSI and MEC effects was tested and confirmed with a precision measurement of the spin-dependent asymmetry in the breakup threshold region of the 3He(pol)(e(pol),e') reaction. The total relative uncertainty of the extracted GMn data is approximately 3%. Close agreement was found with other recent high-precision GMn data in this Q^2 range., Comment: Archival paper, 17 pages, 10 figures, 5 tables, submitted to Physical Review C. v2: shortened considerably, updated comparison to theory

Published
2006
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40. Distributions of charged hadrons associated with high transverse momentum particles in pp and Au+Au collisions at sqrt[sNN]=200 GeV

Author

Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bhardwaj, S., Bhati, A. K., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A., Bravar, A., Cadman, R. V., Cai, X. Z., Caines, H., Calderon La Barca Sanchez, M., Carroll, J., Castillo, J., Cebra, D., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, Y., Chernenko, S. P., Cherney, M., Chikanian, A., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Derevschikov, A. A., Didenko, L., Dietel, T., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Dutta Majumdar, M. R., Eckardt, V., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faine, V., Faivre, J., Fatemi, R., Filimonov, K., Filip, P., Finch, E., Fisyak, Y., Flierl, D., Foley, K. J., Fu, J., Gagliardi, C. A., Gagunashvili, N., Gans, J., Ganti, M. S., Gaudichet, L., Geurts, F., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Grachov, O., Grebenyuk, O., Gronstal, S., Grosnick, D., Guertin, S. M., Gupta, A., Gutierrez, T. D., Hallman, T. J., Hamed, A., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Heppelmann, S., Herston, T., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Horsley, M., Huang, H. Z., Huang, S. L., Hughes, E., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Jiang, H., Johnson, I., Jones, P. G., Judd, E. G., Kabana, S., Kaplan, M., Keane, D., Khodyrev, V. Yu, Kiryluk, J., Adam Kisiel, Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kovalenko, A. D., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kunde, G. J., Kunz, C. L., Kutuev, R. Kh, Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Lasiuk, B., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Levine, M. J., Li, C., Li, Q., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Z., Liu, Q. J., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Lopez-Noriega, M., Love, W. A., Ludlam, T., Lynn, D., Ma, J., Ma, Y. G., Magestro, D., Mahajan, S., Mangotra, L. K., Mahapatra, D. P., Majka, R., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J., Matis, H. S., Matulenko, Yu A., Mcclain, C. J., Mcshane, T. S., Meissner, F., Melnick, Yu, Meschanin, A., Miller, M. L., Milosevich, Z., Minaev, N. G., Mironov, C., Mischke, A., Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Mora-Corral, M. J., Morozov, D. A., Morozov, V., Moura, M. M., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Nikitin, V. A., Nogach, L. V., Norman, B., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevski, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L. J., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Schambach, J., Scharenberg, R. P., Schmitz, N., Schroeder, L. S., Schweda, K., Seger, J., Seyboth, P., Shahaliev, E., Shao, M., Shao, W., Sharma, M., Shestermanov, K. E., Shimanskii, S. S., Singaraju, R. N., Simon, F., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., Suaide, A. A. P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T. J. M., Szanto Toledo, A., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Thein, D., Thomas, J. H., Timoshenko, S., Tokarev, M., Tonjes, M. B., Trainor, T. A., Trentalange, S., Tribble, R. E., Tsai, O., Ullrich, T., Underwood, D. G., Buren, G., Vandermolen, A. M., Varma, R., Vasilevski, I., Vasiliev, A. N., Vernet, R., Vigdor, S. E., Viyogi, Y. P., Voloshin, S. A., Vznuzdaev, M., Waggoner, W., Wang, F., Wang, G., Wang, X. L., Wang, Y., Wang, Z. M., Ward, H., Watson, J. W., Webb, J. C., Wells, R., Westfall, G. D., Whitten, C. Jr, Wieman, H., Willson, R., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yamamoto, E., Yepes, P., Yurevich, V. I., Yuting, B., Zanevski, Y. V., Zhang, H., Zhang, W. M., Zhang, Z. P., Zhaomin, Z. P., Zizong, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, J., Zubarev, A. N., and Star, Collaboration

Abstract

Charged hadrons in [EQUATION: SEE TEXT] associated with particles of [EQUATION: SEE TEXT] are reconstructed in pp and Au+Au collisions at sqrt[sNN]=200 GeV. The associated multiplicity and p magnitude sum are found to increase from pp to central Au+Au collisions. The associated p distributions, while similar in shape on the nearside, are significantly softened on the awayside in central Au+Au relative to pp and not much harder than that of inclusive hadrons. The results, consistent with jet quenching, suggest that the awayside fragments approach equilibration with the medium traversed.

Published
2005

41. Event-wise (Pt) fluctuations in Au-Au collisions at root sNN=130 GeV

Author

Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Anderson, M., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bhardwaj, S., Bhaskar, P., Bhati, A. K., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A., Bravar, A., Cadman, R. V., Cai, X. Z., Caines, H., Sanchez, M. C. D., Carroll, J., Castillo, J., Castro, M., Cebra, D., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, Y., Chernenko, S. P., Cherney, M., Chikanian, A., Choi, B., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Derevschikov, A. A., Didenko, L., Dietel, T., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Majumdar, M. R. D., Eckardt, V., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faine, V., Faivre, J., Fatemi, R., Filimonov, K., Filip, P., Finch, E., Fisyak, Y., Flierl, D., Foley, K. J., Fu, J., Gagliardi, C. A., Ganti, M. S., Gutierrez, T. D., Gagunashvili, N., Gans, J., Gaudichet, L., Germain, M., Geurts, F., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Grachov, O., Grigoriev, V., Gronstal, S., Grosnick, D., Guedon, M., Guertin, S. M., Gupta, A., Gushin, E., Hallman, T. J., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Heppelmann, S., Herston, T., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Horsley, M., Huang, H. Z., Huang, S. L., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Johnson, I., Jones, P. G., Judd, E. G., Kabana, S., Kaneta, M., Kaplan, M., Keane, D., Kiryluk, J., Kisiel, A., Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Konstantinov, A. S., Kopytine, M., Kotchenda, L., Kovalenko, A. D., Kramer, M., Kravtsov, P., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kunde, G. J., Kunz, C. L., Kutuev, R. K., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Lansdell, C. P., Lasiuk, B., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Leontiev, V. M., LeVine, M. J., Li, C., Li, Q., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Z., Liu, Q. J., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Lopez-Noriega, M., Love, W. A., Ludlam, T., Lynn, D., Ma, J., Ma, Y. G., Magestro, D., Mahajan, S., Mangotra, L. K., Mahapatra, D. P., Majka, R., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J., Matis, H. S., Matulenko, Y. A., McShane, T. S., Meissner, F., Melnick, Y., Meschanin, A., Messer, M., Miller, M. L., Milosevich, Z., Minaev, N. G., Mironov, C., Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Mora-Corral, M. J., Morozov, V., de Moura, M. M., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Nevski, P., Nikitin, V. A., Nogach, L. V., Norman, B., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., Pandey, S. U., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Perevoztchikov, V., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevski, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L. J., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Schambach, J., Scharenberg, R. P., Schmitz, N., Schroeder, L. S., Schweda, K., Seger, J., Seliverstov, D., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shestermanov, K. E., Shimanskii, S. S., Singaraju, R. N., Simon, F., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., Suaide, A. A. P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T. J. M., de Toledo, A. S., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Thein, D., Thomas, J. H., Tikhomirov, V., Tokarev, M., Tonjes, M. B., Trainor, T. A., Trentalange, S., Tribble, R. E., Trivedi, M. D., Trofimov, V., Tsai, O., Ullrich, T., Underwood, D. G., Buren, G. V., VanderMolen, A. M., Vasiliev, A. N., Vasiliev, M., Vigdor, S. E., Viyogi, Y. P., Waggoner, W., Wang, F., Wang, G., Wang, X. L., Wang, Z. M., Ward, H., Watson, J. W., Wells, R., Westfall, G. D., Whitten, C., Wieman, H., Willson, R., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yakutin, A. E., Yamamoto, E., Yang, J., Yepes, P., Yurevich, V. I., Zanevski, Y. V., Zborovsky, I., Zhang, H., Zhang, H. Y., Zhang, W. M., Zhang, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, J., and Zubarev, A. N.

Subjects
High Energy Physics::Experiment, Nuclear Experiment, heavy-ion collisions, transverse-momentum, nuclear collisions, dynamics, physics, model
Abstract

We present the first large-acceptance measurement of event-wise mean transverse momentum < p(t)> fluctuations for Au-Au collisions at nucleon-nucleon center-of-momentum collision energy root s(NN) = 130 GeV. The observed nonstatistical < p(t)> fluctuations substantially exceed in magnitude fluctuations expected from the finite number of particles produced in a typical collision. The r.m.s. fractional width excess of the event-wise < p(t)> distribution is 13.7 +/- 0.1(stat) +/- 1.3(syst)% relative to a statistical reference, for the 15% most-central collisions and for charged hadrons within pseudorapidity range vertical bar eta vertical bar < 1,2 pi azimuth, and 0.15 fluctuation excess is qualitatively larger than those observed at lower energies and differs markedly from theoretical expectations. Contributions to < p(t)> fluctuations from semihard parton scattering in the initial state and dissipation in the bulk colored medium are discussed.

Published
2005

42. Transverse-momentum dependent modification of dynamic texture in central Au+Au collisions at root s(NN)=200 GeV

Author

Adams, J., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Bai, Y., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bharadwaj, S., Bhasin, A., Bhati, A. K., Bhatia, V. S., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A., Bravar, A., Bystersky, M., Cadman, R. V., Cai, X. Z., Caines, H., Sanchez, M. C. D., Castillo, J., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopdhyay, S., Chen, H. F., Chen, Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., de Moura, M. M., Derevschikov, A. A., Didenko, L., Dietel, T., Dogra, S. M., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Mazumder, M. R. D., Eckardt, V., Edwards, W. R., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faivre, J., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fomenko, K., Fu, J., Gagliardi, C. A., Gans, J., Ganti, M. S., Gaudichet, L., Geurts, F., Ghazikhanian, V., Ghosh, G., Gonzalez, J. E., Grachov, O., Grebenyuk, O., Grosnick, D., Guertin, S. M., Guo, Y., Gupta, A., Gutierrez, T. D., Hallman, T. J., Hamed, A., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Huang, H. Z., Huang, S. L., Hughes, E. W., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Jiang, H., Jones, P. G., Judd, E. G., Kabana, S., Kang, K., Kaplan, M., Keane, D., Khodyrev, V. Y., Kiryluk, J., Kisiel, A., Kislov, E. M., Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kutuev, R. K., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lehocka, S., LeVine, M. J., Li, C., Li, Q., Li, Y., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Q. J., Liu, Z., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Lopez-Noriega, M., Love, W. A., Lu, Y., Ludlam, T., Lynn, D., Ma, G. L., Ma, J. G., Ma, Y. G., Magestro, D., Mahajan, S., Mahapatra, D. P., Majka, R., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J. N., Matis, H. S., Matulenko, Y. A., McClain, C. J., McShane, T. S., Meissner, F., Melnick, Y., Meschanin, A., Miller, M. L., Minaev, N. G., Mironov, C., Mischke, A., Mishra, D. K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Nikitin, V. A., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Sazhin, P. S., Schambach, J., Scharenberg, R. P., Schmitz, N., Schweda, K., Seger, J., Seyboth, P., Shahaliev, E., Shao, M., Shao, W., Sharma, M., Shen, W. Q., Shestermanov, K. E., Shimanskiy, S. S., Sichtermann, E., Simon, F., Singaraju, R. N., Skoro, G., Smimov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stadnik, A., Stanislaus, T. D. S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Sugarbaker, E., Suite, C., Sumbera, M., Surrow, B., Symons, T. J. M., de Toledo, A. S., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Tarnowsky, T., Thein, D., Thomas, J. H., Timoshenko, S., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Urkinbaev, A., Van Buren, G., van Leeuwen, M., Vander Molen, A. M., Varma, R., Vasilevski, I. M., Vasiliev, A. N., Vernet, R., Vigdor, S. E., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vznuzdaev, M., Waggoner, W. T., Wang, F., Wang, G., Wang, X. L., Wang, Y., Wang, Z. M., Ward, H., Watson, J. W., Webb, J. C., Weiis, R., Westfall, G. D., Wetzler, A., Whitten, C., Wieman, H., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yamamoto, E., Yepes, P., Yarevich, V. I., Zanevsky, Y. V., Zhang, H., Zhang, W. M., Zhang, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, Y., and Zubarev, A. N.

Subjects
High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, Qcd, model, qcd, Model
Abstract

Correlations in the hadron distributions produced in relativistic Au+Au collisions are studied in the discrete wavelet expansion method. The analysis is performed in the space of pseudorapidity (vertical bar eta vertical bar

Published
2005

43. Pion interferometry in Au+Au collisions at root s(NN)=200 GeV

Author

Adams, J., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Bai, Y., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bharadwaj, S., Bhasin, A., Bhati, A. K., Bhatia, V. S., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A. V., Bravar, A., Bystersky, M., Cadman, R. V., Cai, X. Z., Caines, H., Sanchez, M. C. D., Castillo, J., Cebra, D., Chajecki, Z., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, Y., Cheng, J., Cherney, M., Chikanian, A., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., Das, S., de Moura, M. M., Derevschikov, A. A., Didenko, L., Dietel, T., Dogra, S. M., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Mazumdar, M. R. D., Eckardt, V., Edwards, W. R., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faivre, J., Fatemi, R., Fedorisin, J., Filimonov, K., Filip, P., Finch, E., Fine, V., Fisyak, Y., Fomenko, K., Fu, J., Gagliardi, C. A., Gans, J., Ganti, M. S., Gaudichet, L., Geurts, F., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Grachov, O., Grebenyuk, O., Grosnick, D., Guertin, S. M., Guo, Y., Gupta, A., Gutierrez, T. D., Hallman, T. J., Hamed, A., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Hepplemann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Huang, H. Z., Huang, S. L., Hughes, E. W., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Jiang, H., Jones, P. G., Judd, E. G., Kabana, S., Kang, K., Kaplan, M., Keane, D., Khodyrev, V. Y., Kiryluk, J., Kisiel, A., Kislov, E. M., Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kutuev, R. K., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., Lehocka, S., LeVine, M. J., Li, C., Li, Q., Li, Y., Lin, G., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Q. J., Liu, Z., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Noriega, M. L., Love, W. A., Lu, Y., Ludlam, T., Lynn, D., Ma, G. L., Ma, J. G., Ma, Y. G., Magestro, D., Mahajan, S., Mahapatra, D. P., Majka, R., Mangotra, L. K., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J. N., Matis, H. S., Matulenko, Y. A., McClain, C. J., McShane, T. S., Meissner, F., Melnick, Y., Meschanin, A., Miller, M. L., Minaev, N. G., Mironov, C., Mischke, A., Mishra, D. K., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Morozov, D. A., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Nikitin, V. A., Nogach, L. V., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevskiy, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Sazhin, P. S., Schambach, J., Scharenberg, R. P., Schmitz, N., Schweda, K., Seger, J., Seyboth, P., Shahaliev, E., Shao, M., Shao, W., Sharma, M., Shen, W. Q., Shestermanov, K. E., Shimanskiy, S. S., Sichtermann, E., Simon, F., Singaraju, R. N., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stadnik, A., Stanislaus, T. D. S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Suaide, A. A. P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T. J. M., de Toledo, A. S., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Tarnowsky, T., Thein, D., Thomas, J. H., Timoshenko, S., Tokarev, M., Trainor, T. A., Trentalange, S., Tribble, R. E., Tsai, O. D., Ulery, J., Ullrich, T., Underwood, D. G., Urkinbaev, A., Van Buren, G., van Leeuwen, M., Vander Molen, A. M., Varma, R., Vasilevski, I. M., Vasiliev, A. N., Vernet, R., Vigdor, S. E., Viyogi, Y. P., Vokal, S., Voloshin, S. A., Vznuzdaev, M., Waggoner, W. T., Wang, F., Wang, G., Wang, X. L., Wang, Y., Wang, Z. M., Ward, H., Watson, J. W., Webb, J. C., Wells, R., Westfall, G. D., Wetzler, A., Whitten, C., Wieman, H., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yamamoto, E., Yepes, P., Yurevich, V. I., Zanevsky, Y. V., Zhang, H., Zhang, W. M., Zhang, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, Y., and Zubarev, A. N.

Subjects
Twiss Correlation-Function, heavy-ion collisions, relativistic nuclear collisions, bose-einstein correlations, anisotropic transverse flow, twiss correlation-function, quark-gluon plasma, centrality dependence, 2-pion correlations, pb collisions, energy, Centrality Dependence, Energy, Nuclear Theory, Anisotropic Transverse Flow, Quark-Gluon Plasma, Heavy-Ion Collisions, 2-Pion Correlations, Bose-Einstein Correlations, Pb Collisions, Relativistic Nuclear Collisions, Nuclear Experiment
Abstract

We present a systematic analysis of two-pion interferometry in Au+Au collisions at root s(NN)=200 GeV using the STAR detector at Relativistic Heavy Ion Collider. We extract the Hanbury-Brown and Twiss radii and study their multiplicity, transverse momentum, and azimuthal angle dependence. The Gaussianness of the correlation function is studied. Estimates of the geometrical and dynamical structure of the freeze-out source are extracted by fits with blast-wave parametrizations. The expansion of the source and its relation with the initial energy density distribution is studied.

Published
2005

44. The Q$^2$-Dependence of the Neutron Spin Structure Function g$_2^n$ at Low Q$^2$

Author

Kramer, K., Armstrong, D., Averett, T., Bertozzi, W., Binet, S., Butuceanu, C., Camsonne, A., Cates, G., Chen, J.-P., Choi, S., Chudakov, E., Cusanno, F., Deur, A., Djawotho, P., Dutta, D., Finn, J., Gao, H., Garibaldi, F., Gayou, O., Gilman, R., Glamazdin, O., Gorbenko, V., Griffioen, K., Hansen, J.-O., Higinbotham, D., Hinton, W., Horn, T., De Jager, C., Jiang, X., Korsch, W., LeRose, J., Lhuillier, D., Liyanage, N., Margaziotis, D., McCormick, K., Meziani, Z.-E., Michaels, R., Milbrath, B., Moffit, B., Nanda, S., Perdrisat, C., Pomatsalyuk, R., Punjabi, V., Reitz, B., Roche, J., Roche, R., Roedelbronn, M., Savvinov, N., Secrest, D., Singh, J., Sirca, S., Slifer, K., Solvignon, P., Steiner, D., Suleiman, R., Sulkosky, V., Tobias, W., Vacheret, A., Xiao, Y., Zheng, X., Y. Zhou, J., Zhu, L., Zhu, X., Zolnierczuk, P., Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and HALL A

Subjects
High Energy Physics::Lattice, Nuclear Theory, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, 13.60.Hb, 14.20.Dh, 13.88.+e, 24.85.+p, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

We present the first measurement of the Q^2-dependence of the neutron spin structure function g_2^n at five kinematic points covering 0.57 (GeV/c)^2, 5 pages, 3 figures

Published
2005
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45. Distributions of charged hadrons associated with high transverse momentum particles in pp and Au plus Au collisions at root(S)(NN)=200 GeV

Author

Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bhardwaj, S., Bhati, A. K., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A., Bravar, A., Cadman, R. V., Cai, X. Z., Caines, H., Sanchez, M. C. D. B., Carroll, J., Castillo, J., Cebra, D., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, Y., Chernenko, S. P., Cherney, M., Chikanian, A., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Derevschikov, A. A., Didenko, L., Dietel, T., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Majumdar, M. R. D., Eckardt, V., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faine, V., Faivre, J., Fatemi, R., Filimonov, K., Filip, P., Finch, E., Fisyak, Y., Flierl, D., Foley, K. J., Fu, J., Gagliardi, C. A., Gagunashvili, N., Gans, J., Ganti, M. S., Gaudichet, L., Geurts, F., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Grachov, O., Grebenyuk, O., Gronstal, S., Grosnick, D., Guertin, S. M., Gupta, A., Gutierrez, T. D., Hallman, T. J., Hamed, A., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Heppelmann, S., Herston, T., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Horsley, M., Huang, H. Z., Huang, S. L., Hughes, E., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Jiang, H., Johnson, I., Jones, P. G., Judd, E. G., Kabana, S., Kaplan, M., Keane, D., Khodyrev, V. Y., Kiryluk, J., Kisiel, A., Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kovalenko, A. D., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kunde, G. J., Kunz, C. L., Kutuev, R. K., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Lasiuk, B., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., LeVine, M. J., Li, C., Li, Q., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Z., Liu, Q. J., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Lopez-Noriega, M., Love, W. A., Ludlam, T., Lynn, D., Ma, J., Ma, Y. G., Magestro, D., Mahajan, S., Mangotra, L. K., Mahapatra, D. P., Majka, R., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J., Matis, H. S., Matulenko, Y. A., McClain, C. J., McShane, T. S., Meissner, F., Melnick, Y., Meschanin, A., Miller, M. L., Milosevich, Z., Minaev, N. G., Mironov, C., Mischke, A., Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Mora-Corral, M. J., Morozov, D. A., Morozov, V., de Moura, M. M., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Nikitin, V. A., Nogach, L. V., Norman, B., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevski, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L. J., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Schambach, J., Scharenberg, R. P., Schmitz, N., Schroeder, L. S., Schweda, K., Seger, J., Seyboth, P., Shahaliev, E., Shao, M., Shao, W., Sharma, M., Shestermanov, K. E., Shimanskii, S. S., Singaraju, R. N., Simon, F., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., Suaide, A. A. P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T. J. M., de Toledo, A. S., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Thein, D., Thomas, J. H., Timoshenko, S., Tokarev, M., Tonjes, M. B., Trainor, T. A., Trentalange, S., Tribble, R. E., Tsai, O., Ullrich, T., Underwood, D. G., Van Buren, G., VanderMolen, A. M., Varma, R., Vasilevski, I., Vasiliev, A. N., Vernet, R., Vigdor, S. E., Viyogi, Y. P., Voloshin, S. A., Vznuzdaev, M., Waggoner, W., Wang, F., Wang, G., Wang, X. L., Wang, Y., Wang, Z. M., Ward, H., Watson, J. W., Webb, J. C., Wells, R., Westfall, G. D., Whitten, C., Wieman, H., Willson, R., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yamamoto, E., Yepes, P., Yurevich, V. I., Yuting, B., Zanevski, Y. V., Zhang, H., Zhang, W. M., Zhang, Z. P., Zhaomin, Z. P., Zizong, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, J., and Zubarev, A. N.

Subjects
energy-loss, qcd, Astrophysics::High Energy Astrophysical Phenomena, Energy-Loss, High Energy Physics::Experiment, Nuclear Experiment, Qcd
Abstract

Charged hadrons in 0.15 < p(perpendicular to)< 4 GeV/c associated with particles of p(perpendicular to)(trig)> 4 GeV/c are reconstructed in pp and Au+Au collisions at root s(NN)=200 GeV. The associated multiplicity and p(perpendicular to) magnitude sum are found to increase from pp to central Au+Au collisions. The associated p(perpendicular to) distributions, while similar in shape on the nearside, are significantly softened on the awayside in central Au+Au relative to pp and not much harder than that of inclusive hadrons. The results, consistent with jet quenching, suggest that the awayside fragments approach equilibration with the medium traversed.

Published
2005

47. $\pi - \Xi$ correlations in Au-Au collisions at STAR

Author

Adams, J., Adler, C., M. Aggarwal, M., Ahammed, Z., Amonett, J., D. Anderson, B., Anderson, M., Arkhipkin, D., S. Averichev, G., K. Badyal, S., Balewski, J., Barannikova, O., S. Barnby, L., Baudot, J., Bekele, S., V. Belaga, V., Bellwied, R., Berger, J., I. Bezverkhny, B., Bhardwaj, S., Bhaskar, P., K. Bhati, A., Bichsel, H., Billmeier, A., C. Bland, L., O. Blyth, C., E. Bonner, B., Botje, M., Boucham, A., Brandin, A., Bravar, A., V. Cadman, R., Z. Cai, X., Caines, H., Calderón De La Barca Sánchez, M., Carroll, J., Castillo, J., Castro, M., Cebra, D., Chaloupka, P., Chattopadhyay, S., F. Chen, H., Chen, Y., P. Chernenko, S., Cherney, M., Chikanian, A., Choi, B., Christie, W., Coffin, J.P., M. Cormier, T., G. Cramer, J., J. Crawford, H., Das, D., Das, S., A. Derevschikov, A., Didenko, L., Dietel, T., J. Dong, W., Dong, X., E. Draper, J., Du, F., K. Dubey, A., B. Dunin, V., C. Dunlop, J., R. Dutta Majumdar, M., Eckardt, V., G. Efimov, L., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, Magali, Fachini, P., Faine, V., Faivre, J., Fatemi, R., Filimonov, K., Filip, P., Finch, E., Fisyak, Y., Flierl, D., J. Foley, K., Fu, J., Gagliardi, C.A., Gagunashvili, N., Gans, J., S. Ganti, M., Gaudichet, L., Germain, Marie, Geurts, F., Ghazikhanian, V., Ghosh, P., E. Gonzalez, J., Grachov, O., Grigoriev, V., Gronstal, S., Grosnick, D., Guedon, M., M. Guertin, S., Gupta, Anupam, Gushin, E., D. Gutierrez, T., J. Hallman, T., Hardtke, D., W. Harris, J., Heinz, M., W. Henry, T., Heppelmann, S., Herston, T., Hippolyte, B., Hirsch, A., Hjort, E., W. Hoffmann, G., Horsley, M., Z. Huang, H., L. Huang, S., J. Humanic, T., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W.W., Janik, M., Jiang, H., Johnson, I., G. Jones, P., G. Judd, E., Kabana, S., Kaneta, M., Kaplan, M., Keane, D., Yu. Khodyrev, V., Kiryluk, J., Kisiel, A., Klay, J., R. Klein, S., Klyachko, A., D. Koetke, D., Kollegger, T., Kopytine, M., Kotchenda, L., D. Kovalenko, A., Kramer, M., Kravtsov, P., I. Kravtsov, V., Krueger, K., Kuhn, C., I. Kulikov, A., Kumar, A., J. Kunde, G., L. Kunz, C., Kh. Kutuev, R., A. Kuznetsov, A., Lamont, M.A. C., M. Landgraf, J., Lange, S., P. Lansdell, C., Lasiuk, B., Laue, F., Lauret, J., Lebedev, A., Lednický, R., J. Levine, M., Li, C., Li, Q., J. Lindenbaum, S., A. Lisa, M., Liu, Franklin, Liu, L., Liu, Z., J. Liu, Q., Ljubicic, T., J. Llope, W., Long, H., S. Longacre, R., Lopez-Noriega, M., Love, W.A., Ludlam, T., Lynn, D., Ma, J., G. Ma, Y., Magestro, D., Mahajan, S., K. Mangotra, L., P. Mahapatra, D., Majka, R., Manweiler, R., Margetis, S., Markert, C., Martin, Lilian, Marx, J., S. Matis, H., A. Matulenko, Yu., S. Mcshane, T., Meissner, F., Melnick, Yu., Meschanin, A., Messer, M., L. Miller, M., Milosevich, Z., G. Minaev, N., Mironov, C., Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., F. Moore, C., J. Mora-Corral, M., Morozov, D.A., Morozov, V., M. De Moura, M., G. Munhoz, M., K. Nandi, B., K. Nayak, S., K. Nayak, T., M. Nelson, J., Nevski, P., A. Nikitin, V., V. Nogach, L., Norman, B., B. Nurushev, S., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., U. Pandey, S., K. Pal, S., Panebratsev, Y., Y. Panitkin, S., I. Pavlinov, A., Pawlak, T., Perevoztchikov, V., Perkins, C., Peryt, W., A. Petrov, V., C. Phatak, S., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., M. Poskanzer, A., Potekhin, M., Potrebenikova, E., V. K. S. Potukuchi, B., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., L. Ray, R., V. Razin, S., Reichhold, D., G. Reid, J., Renault, G., Retiere, F., Ridiger, A., G. Ritter, H., B. Roberts, J., V. Rogachevski, O., L. Romero, J., Rose, A., Roy, C., J. Ruan, L., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Schambach, J., P. Scharenberg, R., Schmitz, N., S. Schroeder, L., Schweda, K., Seger, J., Seliverstov, D., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., E. Shestermanov, K., Shimanskii, S.S., N. Singaraju, R., Simon, F., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., M. Spinka, H., Srivastava, B., Stanislaus, S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., A. P. Suaide, A., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., J. M. Symons, T., Szanto De Toledo, A., Szarwas, P., Tai, A., Takahashi, J., H. Tang, A., Thein, D., H. Thomas, J., Tikhomirov, V., Tokarev, M., B. Tonjes, M., Trainor, T.A., Trentalange, S., E. Tribble, R., D. Trivedi, M., Trofimov, V., Tsai, O., Ullrich, T., G. Underwood, D., Van Buren, G., M. Vandermolen, A., N. Vasiliev, A., Vasiliev, M., E. Vigdor, S., P. Viyogi, Y., Voloshin, S.A., Waggoner, W., Wang, F., Wang, Gang, L. Wang, X., M. Wang, Z., Ward, H., W. Watson, J., Wells, R., D. Westfall, G., Whitten, C., Wieman, H., Willson, R., W. Wissink, S., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Z. Xu, Z., Yamamoto, E., Yepes, P., I. Yurevich, V., V. Zanevski, Y., Zborovský, I., Zhang, H., M. Zhang, W., P. Zhang, Z., A. Zolnierczuk, P., Zoulkarneev, R., Zoulkarneeva, J., N. Zubarev, A., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), STAR, and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

P. Chaloupka for the STAR collaboration; We present $\pi - \Xi$ correlation analysis in Au-Au collisions at $\sqrt{S_{NN}}=200Gev $ and $\sqrt{S_{NN}}=62.4GeV$, performed using the STAR detector at RHIC. A $\Xi^*$(1530) resonance signal is observed for the first time in Au-Au collisions. Experimental data are compared with theoretical predictions. The strength of the $\Xi^*$ peak is reproduced in the correlation function assuming that $\pi$ and $\Xi$ emerge from a system in collective expansion.

Published
2004
Full Text
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48. Photon and neutral pion production in Au+Au collisions at sqrt(s_{NN}) = 130 GeV

Author

Adams, J, Adler, C, Aggarwal, M M, Ahammed, Z, Amonett, J, Anderson, B D, Anderson, M, Arkhipkin, D, Averichev, G S, Badyal, S K, Balewski, J, Barannikova, O, Barnby, L S, Baudot, J, Bekele, S, Belaga, V V, Bellwied, R, Berger, J, Bezverkhny, B I, Bhardwaj, S, Bhaskar, P, Bhati, A K, Bichsel, H, Billmeier, A, Bland, L C, Blyth, C O, Bonner, B E, Botje, M, Boucham, A, Brandin, A, Bravar, A, Cadman, R V, Cai, X Z, Caines, H, Calderón de la Barca-Sanchez, M, Carroll, J, Castillo, J, Castro, M, Cebra, D, Chaloupka, P, Chattopadhyay, S, Chen, H F, Chen, Y, Chernenko, S P, Cherney, M, Chikanian, A, Choi, B, Christie, W, Coffin, J P, Cormier, T M, Cramer, J G, Crawford, H J, Das, D, Das, S, Derevshchikov, A A, Didenko, L, Dietel, T, Dong, X, Draper, J E, Du, F, Dubey, A K, Dunin, V B, Dunlop, J C, Dutta-Majumdar, M R, Eckardt, V, Efimov, L G, Emelianov, V, Engelage, J, Eppley, G, Erazmus, B, Estienne, M, Fachini, P, Faine, V, Faivre, J, Fatemi, R, Filimonov, K, Filip, P, Finch, E, Fisyak, Yu, Flierl, D, Foley, K J, Fu, J, Gagliardi, C A, Ganti, M S, Gutíerrez, T D, Gagunashvili, N, Gans, J, Gaudichet, L, Germain, M, Geurts, F J M, Ghazikhanian, V, Ghosh, P, González, J E, Grachov, O, Grigoriev, V, Gronstal, S, Grosnick, D P, Guedon, M, Guertin, S M, Sen-Gupta, A, Gushin, E, Hallman, T J, Hardtke, D, Harris, J W, Heinz, M, Henry, T W, Heppelmann, S, Herston, T, Hippolyte, B, Hirsch, A, Hjort, E, Hoffmann, G W, Horsley, M, Huang, H Z, Huang Sheng Li, Humanic, T J, Igo, G, Ishihara, A, Jacobs, P, Jacobs, W W, Janik, M, Johnson, I, Jones, P G, Judd, E G, Kabana, S, Kaneta, M, Kaplan, M, Keane, D, Kiryluk, J, Kisiel, A, Klay, J, Klein, S R, Klyachko, A, Koetke, D D, Kollegger, T, Konstantinov, A S, Kopytine, M, Kotchenda, L, Kovalenko, A D, Krämer, M, Kravtsov, P, Krüger, K, Kuhn, C, Kulikov, A I, Kumar, A, Kunde, G J, Kunz, C L, Kutuev, R K, Kuznetsov, A A, Lamont, M A C, Landgraf, J M, Lange, S, Lansdell, C P, Lasiuk, B, Laue, F, Lauret, J, Lebedev, A, Lednicky, R, Leontiev, V M, Le Vine, M J, Li, C, Li, Q, Lindenbaum, S J, Lisa, M A, Liu, F, Liu, L, Liu, Z, Liu, Q J, Ljubicic, T, Llope, W J, Long, H, Longacre, R S, López-Noriega, M, Love, W A, Ludlam, T, Lynn, D, Ma, J, Ma, Y G, Magestro, D, Mahajan, S, Mangotra, L K, Mahapatra, D P, Majka, R, Manweiler, R, Margetis, S, Markert, C, Martin, L, Marx, J, Matis, H S, Matulenko, Yu A, McShane, T S, Meissner, F, Melnik, Yu M, Meschanin, A, Messer, M, Miller, M L, Milosevich, Z, Minaev, N G, Mironov, C, Mishra, D, Mitchell, J, Mohanty, B, Molnár, L, Moore, C F, Mora-Corral, M J, Morozov, V, Moura, Munhoz, M G, Nandi, B K, Nayak, S K, Nayak, T K, Nelson, J M, Nevski, P, Nikitin, V A, Nogach, L V, Norman, B, Nurushev, S B, Odyniec, Grazyna Janina, Ogawa, A, Okorokov, V, Oldenburg, M, Olson, D, Paic, G, Pandey, S U, Pal, S K, Panebratsev, Yu A, Panitkin, S Y, Pavlinov, A I, Pawlak, T, Perevozchikov, V, Peryt, W, Petrov, V A, Phatak, S C, Picha, R, Planinic, M, Pluta, J, Porile, N, Porter, J, Poskanzer, A M, Potekhin, M V, Potrebenikova, E V, Potukuchi, B V K S, Prindle, D, Pruneau, C A, Putschke, J, Rai, G, Rakness, G, Raniwala, R, Raniwala, S, Ravel, O, Ray, R L, Razin, S V, Reichhold, D M, Reid, J G, Renault, G, Retière, F, Ridiger, A, Ritter, H G, Roberts, J B, Rogachevski, O V, Romero, J L, Rose, A, Roy, C, Ruan, L J, Sahoo, R, Sakrejda, I, Salur, S, Sandweiss, J, Savin, I, Schambach, J, Scharenberg, R P, Schmitz, N, Schröder, L S, Schweda, K, Seger, J, Seliverstov, D M, Seyboth, P, Shahaliev, E, Shao, M, Sharma, M, Shestermanov, K E, Shimansky, S S, Singaraju, R N, Simon, F, Skoro, G P, Smirnov, N, Snellings, R, Sood, G, Sørensen, P, Sowinski, J, Spinka, H M, Srivastava, B, Stanislaus, S, Stock, R, Stolpovsky, A, Strikhanov, M N, Stringfellow, B C, Struck, C, Suaide, A A P, Sugarbaker, E R, Suire, C, Sumbera, M, Surrow, B, Symons, T J M, Szanto de Toledo, A, Szarwas, P, Tai, A, Takahashi, J, Tang, A H, Thein, D, Thomas, J H, Tikhomirov, V, Tokarev, M, Tonjes, M B, Trainor, T A, Trentalange, S, Tribble, R E, Trivedi, M D, Trofimov, V, Tsai, O, Ullrich, T, Underwood, D G, Van Buren, G, Van der Molen, A M, Vasilev, A N, Vasilev, M, Vigdor, S E, Viyogi, Y P, Voloshin, S A, Waggoner, W, Wang, F, Wang, G, Wang, X L, Wang, Z M, Ward, H, Watson, J W, Wells, R, Westfall, G D, Whitten, C, Wieman, H, Willson, R, Wissink, S W, Witt, R, Wood, J, Wu, J, Xu, N, Xu, Z, Xu, Z Z, Yakutin, A E, Yamamoto, E, Yang, J, Yepes, P, Yurevich, V I, Zanevsky, Yu V, Zborovský, I, Zhang, H, Zhang, H Y, Zhang, W M, Zhang, Z P, Zolnierczuk, P A, Zoulkarneev, R, Zoulkarneeva, Y, Zubarev, A N, Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), STAR, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)

Subjects
Physics, 25.75.Dw, FOS: Physical sciences, Physics::Optics, Nuclear Physics - Experiment, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

We report the first inclusive photon measurements about mid-rapidity (|y| photon photon decay channel. The fractional contribution of the pi0 -> photon photon decay to the inclusive photon spectrum decreases by 20% +/- 5% between pt = 1.65 GeV/c and pt = 2.4 GeV/c in the most central events, indicating that relative to pi0 -> photon photon decay the contribution of other photon sources is substantially increasing., 13 pages, 14 figures, submitted to Phys. Rev. C

Published
2004
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49. Particle-type dependence of azimuthal anisotropy and nuclear modification of particle production in Au plus Au collisions at root s(NN)=200 GeV

Author

Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Anderson, M., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bhardwaj, S., Bhaskar, P., Bhati, A. K., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A., Bravar, A., Cadman, R. V., Cai, X. Z., Caines, H., Sanchez, M. C. D., Carroll, J., Castillo, J., Castro, M., Cebra, D., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, Y., Chernenko, S. P., Cherney, M., Chikanian, A., Choi, B., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Derevschikov, A. A., Didenko, L., Dietel, T., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Majumdar, M. R. D., Eckardt, V., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faine, V., Faivre, J., Fatemi, R., Filimonov, K., Filip, P., Finch, E., Fisyak, Y., Flierl, D., Foley, K. J., Fu, J., Gagliardi, C. A., Gagunashvili, N., Gans, J., Ganti, M. S., Gaudichet, L., Germain, M., Geurts, F., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Grachov, O., Grigoriev, V., Gronstal, S., Grosnick, D., Guedon, M., Guertin, S. M., Gupta, A., Gushin, E., Gutierrez, T. D., Hallman, T. J., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Heppelmann, S., Herston, T., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Horsley, M., Huang, H. Z., Huang, S. L., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Jiang, H., Johnson, I., Jones, P. G., Judd, E. G., Kabana, S., Kaneta, M., Kaplan, M., Keane, D., Khodyrev, V. Y., Kiryluk, J., Kisiel, A., Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kovalenko, A. D., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kunde, G. J., Kunz, C. L., Kutuev, R. K., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Lansdell, C. P., Lasiuk, B., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., LeVine, M. J., Li, C., Li, Q., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Z., Liu, Q. J., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Lopez-Noriega, M., Love, W. A., Ludlam, T., Lynn, D., Ma, J., Ma, Y. G., Magestro, D., Mahajan, S., Mangotra, L. K., Mahapatra, D. P., Majka, R., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J., Matis, H. S., Matulenko, Y. A., McShane, T. S., Meissner, F., Melnick, Y., Meschanin, A., Messer, M., Miller, M. L., Milosevich, Z., Minaev, N. G., Mironov, C., Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Mora-Corral, M. J., Morozov, D. A., Morozov, V., de Moura, M. M., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Nevski, P., Nikitin, V. A., Nogach, L. V., Norman, B., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., Pandey, S. U., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevski, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L. J., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Schambach, J., Scharenberg, R. P., Schmitz, N., Schroeder, L. S., Schweda, K., Seger, J., Seliverstov, D., Seyboth, P., Shahaliev, E., Shao, M., Sharma, M., Shestermanov, K. E., Shimanskii, S. S., Singaraju, R. N., Simon, F., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Spinka, H. M., Srivastava, B., Stanislaus, S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., Suaide, A. A. P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T. J. M., de Toledo, A. S., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Thein, D., Thomas, J. H., Tikhomirov, V., Tokarev, M., Tonjes, M. B., Trainor, T. A., Trentalange, S., Tribble, R. E., Trivedi, M. D., Trofimov, V., Tsai, O., Ullrich, T., Underwood, D. G., Van Buren, G., VanderMolen, A. M., Vasiliev, A. N., Vasiliev, M., Vigdor, S. E., Viyogi, Y. P., Voloshin, S. A., Waggoner, W., Wang, F., Wang, G., Wang, X. L., Wang, Z. M., Ward, H., Watson, J. W., Wells, R., Westfall, G. D., Whitten, C., Wieman, H., Willson, R., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yamamoto, E., Yepes, P., Yurevich, V. I., Zanevski, Y. V., Zborovsky, I., Zhang, H., Zhang, W. M., Zhang, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, J., and Zubarev, A. N.

Subjects
High Energy Physics::Phenomenology, large transverse-momentum, elliptic flow, qcd, signature, hadrons, High Energy Physics::Experiment, Nuclear Experiment
Abstract

We present STAR measurements of the azimuthal anisotropy parameter v(2) and the binary-collision scaled centrality ratio R-CP for kaons and lambdas (Lambda+(&ULambda;) over bar) at midrapidity in Au+Au collisions at roots(NN)=200 GeV. In combination, the v(2) and R-CP particle-type dependencies contradict expectations from partonic energy loss followed by standard fragmentation in vacuum. We establish p(T)approximate to5 GeV/c as the value where the centrality dependent baryon enhancement ends. The K-S(0) and Lambda+(&ULambda;) over bar v(2) values are consistent with expectations of constituent-quark-number scaling from models of hadron formation by parton coalescence or recombination.

Published
2004

50. Azimuthally sensitive hanbury brown-twiss interferometry in Au+Au collisions at root s(NN)=200 GeV

Author

Adams, J., Adler, C., Aggarwal, M. M., Ahammed, Z., Amonett, J., Anderson, B. D., Arkhipkin, D., Averichev, G. S., Badyal, S. K., Balewski, J., Barannikova, O., Barnby, L. S., Baudot, J., Bekele, S., Belaga, V. V., Bellwied, R., Berger, J., Bezverkhny, B. I., Bhardwaj, S., Bhati, A. K., Bichsel, H., Billmeier, A., Bland, L. C., Blyth, C. O., Bonner, B. E., Botje, M., Boucham, A., Brandin, A., Bravar, A., Cadman, R. V., Cai, X. Z., Caines, H., Sanchez, M. C. D., Carroll, J., Castillo, J., Cebra, D., Chaloupka, P., Chattopadhyay, S., Chen, H. F., Chen, Y., Chernenko, S. P., Cherney, M., Chikanian, A., Christie, W., Coffin, J. P., Cormier, T. M., Cramer, J. G., Crawford, H. J., Das, D., Das, S., Derevschikov, A. A., Didenko, L., Dietel, T., Dong, W. J., Dong, X., Draper, J. E., Du, F., Dubey, A. K., Dunin, V. B., Dunlop, J. C., Majumdar, M. R. D., Eckardt, V., Efimov, L. G., Emelianov, V., Engelage, J., Eppley, G., Erazmus, B., Estienne, M., Fachini, P., Faine, V., Faivre, J., Fatemi, R., Filimonov, K., Filip, P., Finch, E., Fisyak, Y., Flierl, D., Foley, K. J., Fu, J., Gagliardi, C. A., Gagunashvili, N., Gans, J., Ganti, M. S., Gaudichet, L., Geurts, F., Ghazikhanian, V., Ghosh, P., Gonzalez, J. E., Grachov, O., Grebenyuk, O., Gronstal, S., Grosnick, D., Guertin, S. M., Gupta, A., Gutierrez, T. D., Hallman, T. J., Hamed, A., Hardtke, D., Harris, J. W., Heinz, M., Henry, T. W., Heppelmann, S., Hippolyte, B., Hirsch, A., Hjort, E., Hoffmann, G. W., Horsley, M., Huang, H. Z., Huang, S. L., Hughes, E., Humanic, T. J., Igo, G., Ishihara, A., Jacobs, P., Jacobs, W. W., Janik, M., Jiang, H., Johnson, I., Jones, P. G., Judd, E. G., Kabana, S., Kaplan, M., Keane, D., Khodyrev, V. Y., Kiryluk, J., Kisiel, A., Klay, J., Klein, S. R., Klyachko, A., Koetke, D. D., Kollegger, T., Kopytine, M., Kotchenda, L., Kovalenko, A. D., Kramer, M., Kravtsov, P., Kravtsov, V. I., Krueger, K., Kuhn, C., Kulikov, A. I., Kumar, A., Kunde, G. J., Kunz, C. L., Kutuev, R. K., Kuznetsov, A. A., Lamont, M. A. C., Landgraf, J. M., Lange, S., Lasiuk, B., Laue, F., Lauret, J., Lebedev, A., Lednicky, R., LeVine, M. J., Li, C., Li, Q., Lindenbaum, S. J., Lisa, M. A., Liu, F., Liu, L., Liu, Z., Liu, Q. J., Ljubicic, T., Llope, W. J., Long, H., Longacre, R. S., Lopez-Noriega, M., Love, W. A., Ludlam, T., Lynn, D., Ma, J., Ma, Y. G., Magestro, D., Mahajan, S., Mangotra, L. K., Mahapatra, D. P., Majka, R., Manweiler, R., Margetis, S., Markert, C., Martin, L., Marx, J., Matis, H. S., Matulenko, Y. A., McClain, C. J., McShane, T. S., Meissner, F., Melnick, Y., Meschanin, A., Miller, M. L., Milosevich, Z., Minaev, N. G., Mironov, C., Mischke, A., Mishra, D., Mitchell, J., Mohanty, B., Molnar, L., Moore, C. F., Mora-Corral, M. J., Morozov, D. A., Morozov, V., de Moura, M. M., Munhoz, M. G., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nelson, J. M., Netrakanti, P. K., Nikitin, V. A., Nogach, L. V., Norman, B., Nurushev, S. B., Odyniec, G., Ogawa, A., Okorokov, V., Oldenburg, M., Olson, D., Paic, G., Pal, S. K., Panebratsev, Y., Panitkin, S. Y., Pavlinov, A. I., Pawlak, T., Peitzmann, T., Perevoztchikov, V., Perkins, C., Peryt, W., Petrov, V. A., Phatak, S. C., Picha, R., Planinic, M., Pluta, J., Porile, N., Porter, J., Poskanzer, A. M., Potekhin, M., Potrebenikova, E., Potukuchi, B. V. K. S., Prindle, D., Pruneau, C., Putschke, J., Rai, G., Rakness, G., Raniwala, R., Raniwala, S., Ravel, O., Ray, R. L., Razin, S. V., Reichhold, D., Reid, J. G., Renault, G., Retiere, F., Ridiger, A., Ritter, H. G., Roberts, J. B., Rogachevski, O. V., Romero, J. L., Rose, A., Roy, C., Ruan, L. J., Sahoo, R., Sakrejda, I., Salur, S., Sandweiss, J., Savin, I., Schambach, J., Scharenberg, R. P., Schmitz, N., Schroeder, L. S., Schweda, K., Seger, J., Seyboth, P., Shahaliev, E., Shao, M., Shao, W., Sharma, M., Shestermanov, K. E., Shimanskii, S. S., Singaraju, R. N., Simon, F., Skoro, G., Smirnov, N., Snellings, R., Sood, G., Sorensen, P., Sowinski, J., Speltz, J., Spinka, H. M., Srivastava, B., Stanislaus, T. D. S., Stock, R., Stolpovsky, A., Strikhanov, M., Stringfellow, B., Struck, C., Suaide, A. A. P., Sugarbaker, E., Suire, C., Sumbera, M., Surrow, B., Symons, T. J. M., de Toledo, A. S. W., Szarwas, P., Tai, A., Takahashi, J., Tang, A. H., Thein, D., Thomas, J. H., Timoshenko, S., Tokarev, M., Tonjes, M. B., Trainor, T. A., Trentalange, S., Tribble, R. E., Tsai, O., Ullrich, T., Underwood, D. G., Van Buren, G., VanderMolen, A. M., Varma, R., Vasilevski, I., Vasiliev, A. N., Vernet, R., Vigdor, S. E., Viyogi, Y. P., Voloshin, S. A., Vznuzdaev, M., Waggoner, W., Wang, F., Wang, G., Wang, X. L., Wang, Y., Wang, Z. M., Ward, H., Watson, J. W., Webb, J. C., Wells, R., Westfall, G. D., Whitten, C., Wieman, H., Willson, R., Wissink, S. W., Witt, R., Wood, J., Wu, J., Xu, N., Xu, Z., Xu, Z. Z., Yamamoto, E., Yepes, P., Yurevich, V. I., Yuting, B., Zanevski, Y. V., Zhang, H., Zhang, W. M., Zhang, Z. P., Zhaomin, Z. P., Zizong, Z. P., Zolnierczuk, P. A., Zoulkarneev, R., Zoulkarneeva, J., and Zubarev, A. N.

Subjects
Pion Interferometry, Coulomb Corrections, Predictions, Elliptic Flow, Nuclear Theory, Systems, Heavy-Ion Collisions, Bose-Einstein Correlations, Relativistic Nuclear Collisions, Nuclear Experiment, Dependence, heavy-ion collisions, relativistic nuclear collisions, bose-einstein correlations, pion interferometry, coulomb corrections, anisotropic flow, elliptic flow, predictions, dependence, systems, Anisotropic Flow
Abstract

We present the results of a systematic study of the shape of the pion distribution in coordinate space at freeze-out in Au+Au collisions at BNL RHIC using two-pion Hanbury Brown-Twiss (HBT) interferometry. Oscillations of the extracted HBT radii versus emission angle indicate sources elongated perpendicular to the reaction plane. The results indicate that the pressure and expansion time of the collision system are not sufficient to completely quench its initial shape.

Published
2004

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