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Chinese Physics C> 2008, Vol. 32> Issue(4) : 259-263 DOI: 10.1088/1674-1137/32/4/004

Pseudorapidity distribution of multiplicity in Au+Au collisions at √sNN=200GeV

  • Using the Glauber model, we discuss the number of binary nucleon-nucleon collisions in heavy-ion collisions. Based on the latter, after considering the effect of energy loss of the nucleons in multiple collisions, we derive the pseudorapidity distribution of the multiplicity as a function of the impact parameter in nucleus-nucleus collisions. Using this, we analyze the experimental measurements carried out by the BRAHMS Collaboration in Au+Au collisions at √sNN=200GeV. The results are in good agreement with the experimental observations.

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    [1] . Satz H. Nucl. Phys. A, 1984, 418: 447-4652. Bearden I G, Beavis D, Besliu C et al. (BRAHMS Collaboration). Phys. Rev. Lett., 2002, 88(20): 202301-1-202301-43. LIU Fu-Hu. Phys. Lett. B, 2004, 583(1): 68-724. MENG Cai-Rong, LI Xiao-Lin, DUAN Mai-Ying. HEP NP, 2004, 28(11): 1165-1169 (in Chinese)5. LIU Fu-Hu, Panebratsev Y A. Nucl. Phys. A, 1998, 641(4):379-3856. LIU Fu-Hu, Panebratsev Y A. Phys. Rev. C, 1999, 59(2):1193-11957. LIU Fu-Hu, Panebratsev Y A. Phys. Rev. C, 1999, 59(3):1798-18018. LIU Fu-Hu, YIN Xin-Yi, TIAN Jun-Long et al. Phys. Rev.C, 2004, 69(3): 034905-1-034905-59. Wong Cheuk-Yin. Introduction to Heavy-ion Collisions at High Energy. Harbin: Harbin Institute of Technology Press,2002. 222-230 (in Chinese)10. Glauber R J. In Lectures in Theoretical Physics. New York,1959. 31511. JIANG Zhi-Jin. Acta Phys. Sini., 2007, 56: 5191-5195 (in Chinese)12. Werner K. Phys. Rep., 1993, 232: 87-29913. Frois B, Bellicard J B, Cavedon J M et al. Phys. Rev. Lett.,1997, 38: 152-15514. WONG C Y. Phys. Rev. D, 1984, 30: 961-97115. Barshay S. Phys. Rev. D, 1984, 29(5): 1010-101216. Pajares C, Ramallo A V. Phys. Rev. Lett., 1984, 52: 407-40917. Alner G J, Alpgaord K, Anderer P et al. (UA5 Collaboration). Phys. Rep., 1987, 154: 247- 383

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DONG Ya-Fei, JIANG Zhi-Jin and WANG Zeng-Wei. Pseudorapidity distribution of multiplicity in Au+Au collisions at √sNN=200GeV[J]. Chinese Physics C, 2008, 32(4): 259-263. doi: 10.1088/1674-1137/32/4/004
DONG Ya-Fei, JIANG Zhi-Jin and WANG Zeng-Wei. Pseudorapidity distribution of multiplicity in Au+Au collisions at √sNN=200GeV[J]. Chinese Physics C, 2008, 32(4): 259-263.  doi: 10.1088/1674-1137/32/4/004 shu
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Received: 2007-07-23
Revised: 2007-10-18
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Pseudorapidity distribution of multiplicity in Au+Au collisions at √sNN=200GeV

    Corresponding author: JIANG Zhi-Jin,
  • Received Date: 2007-07-23
  • Accepted Date: 2007-10-18
  • Available Online: 2008-04-05

Abstract: 

Using the Glauber model, we discuss the number of binary nucleon-nucleon collisions in heavy-ion collisions. Based on the latter, after considering the effect of energy loss of the nucleons in multiple collisions, we derive the pseudorapidity distribution of the multiplicity as a function of the impact parameter in nucleus-nucleus collisions. Using this, we analyze the experimental measurements carried out by the BRAHMS Collaboration in Au+Au collisions at √sNN=200GeV. The results are in good agreement with the experimental observations.

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