Anti-particles-to-Particles Ratios in Au+Au Collisions at √SNN=130GeV

  • In virtue of the simple physical picture of quark combination model, we determine the dependence of anti-particle to particle ratios on the mean production probability of anti-quarks and quarks. The ratios of various anti-particle to particle at relativistic heavy ion collisions are calculated without any additional assumption, which are consistent with the experiment results of the Au+Au collision at √SNN=130GeV measured by STAR collaboration at RHIC. These results provide a basis for further studies of particles ratios in relativistic heavy ion collisions.
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  • [1] . Laermann E, Philipsen. hep-ph/033030422. Bjorken J D. Phys.Rev., 1983, D27: 1403. Adams J et al. Phys. Lett., 2003, B567: 167-1744. Peter A Steinberg et al. Nucl. Phys. 2002, A715: 490c|493c5. Zinnanyi J. Nucl. Phys., 1999, A661: 2246. XIE Qu-Bing, LIU Xi-Ming. Phys. Rev., 1988, D38(7):21697. LIU Xi-Ming, ZHAO Ning-Hua, LAN Jian-Sheng. HEP NP, 2005, 29(12): 1125 (in Chinese) (刘希明,赵宁华,兰建胜.高能物理与核物理,2005, 29(12)1125)8. LIU Xi-Ming. HEP NP, 2004, 28(10): 1026-1032) (in Chinese)(刘希明.高能物理与核物理,2004,28(10):1026-1032)9. Bialas A. Phys. Lett., 1998, B442: 44910. Back B B et al. Phys. Rev. Lett., 2003, 91: 05230311. Adler C et al. Phys. Rev., 2002, C66: 06190112. Adams J et al. nucl-ex/0211024; Hippolyte B et al. nucl-ex/030601713. Adams J et al. Phys. Lett., 2003, B567: 167-17414. Adler C et al. nucl/ex/0206008
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Get Citation
LIU Xi-Ming. Anti-particles-to-Particles Ratios in Au+Au Collisions at √SNN=130GeV[J]. Chinese Physics C, 2006, 30(5): 435-440.
LIU Xi-Ming. Anti-particles-to-Particles Ratios in Au+Au Collisions at √SNN=130GeV[J]. Chinese Physics C, 2006, 30(5): 435-440. shu
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Received: 2005-08-04
Revised: 2005-08-29
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Anti-particles-to-Particles Ratios in Au+Au Collisions at √SNN=130GeV

    Corresponding author: LIU Xi-Ming,
  • Departiment of Physics, Shandong University, Ji'nan 250100, China

Abstract: In virtue of the simple physical picture of quark combination model, we determine the dependence of anti-particle to particle ratios on the mean production probability of anti-quarks and quarks. The ratios of various anti-particle to particle at relativistic heavy ion collisions are calculated without any additional assumption, which are consistent with the experiment results of the Au+Au collision at √SNN=130GeV measured by STAR collaboration at RHIC. These results provide a basis for further studies of particles ratios in relativistic heavy ion collisions.

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