A Monte Carlo Study on Event-by-Event Transverse Momentum Fluctuation at RHIC

  • The experimental observation on the multiplicity dependence of event-by-event transverse momentum fluctuation in relativistic heavy ion collisions is studied using Monte Carlo simulation. It is found that the Monte Carlo generator HIJING is unable to describe the experimental phenomenon well. A simple Monte Carlo model is proposed, which can recover the data and thus shed some light on the dynamical origin of the multiplicity dependence of event-by-event transverse momentum fluctuation.
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  • [1] . Proceedings for Quark Matter'04. Oakland, Jan., 20042. Gyulassy M. The QGP Discovered at RHIC. nucl-th/0403032, 2004; Shuryak E. What RHIC Experiments and Theory Tell us about Properties of Quark-Gluon Plasma?hepph/0405066, 20043. Mr'owczy'nski S. Phys. Lett., 1993, B314: 1184. Stephanov M A, Rajagopal K, Shuryak E V. Phys. Rev.Lett., 1998, 81: 4816; Phys. Rev., 1999, D60: 1140285. Dumitru A, Pisarski R. Phys. Lett., 2001, B504: 2826. Adams J et al(STAR Collab). nucl-ex/0308033, 20037. Adamov D et al(CERES Collab). Nucl. Phys., 2003,A727: 97|1198. Adler C et al(STAR Collab). Phys. Rev. Lett., 2001, 87:1123039. Barnby L for STAR Collab. Identied Hadron Spectra and Yields, Talk at 19th Winter Workshop on Nuclear Dynamics, Breckenridge, Feb. 200310. Voloshin S A, Koch V, Ritter H G. Phys. Rev., 1999, C60:02490111. FU J H, LIU L S. Phys. Rev., 2003, C68: 06490412. LIU Lian-Shou, FU Jing-Hua. Chin. Phys. Lett., 2004, 21:1467
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XU Ming-Mei. A Monte Carlo Study on Event-by-Event Transverse Momentum Fluctuation at RHIC[J]. Chinese Physics C, 2005, 29(9): 892-895.
XU Ming-Mei. A Monte Carlo Study on Event-by-Event Transverse Momentum Fluctuation at RHIC[J]. Chinese Physics C, 2005, 29(9): 892-895. shu
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Received: 2005-03-07
Revised: 1900-01-01
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A Monte Carlo Study on Event-by-Event Transverse Momentum Fluctuation at RHIC

    Corresponding author: XU Ming-Mei,
  • Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

Abstract: The experimental observation on the multiplicity dependence of event-by-event transverse momentum fluctuation in relativistic heavy ion collisions is studied using Monte Carlo simulation. It is found that the Monte Carlo generator HIJING is unable to describe the experimental phenomenon well. A simple Monte Carlo model is proposed, which can recover the data and thus shed some light on the dynamical origin of the multiplicity dependence of event-by-event transverse momentum fluctuation.

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