Centrality dependences of the pseudorapidity distributions of charged particles in Au+Au collisions at RHIC energies

JIANG Zhi-Jin; SUN Yu-Fen; NI Wei-Xin

doi:10.1088/1674-1137/34/8/013

Chinese Physics C> 2010, Vol. 34> Issue(8) : 1104-1110 DOI: 10.1088/1674-1137/34/8/013

Centrality dependences of the pseudorapidity distributions of charged particles in Au+Au collisions at RHIC energies

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Abstract：
By employing the Glauber model, we give the centrality dependences of the numbers of participants and binary nucleon-nucleon collisions in nucleus-nucleus collisions. By taking into account the energy loss of the participants in their multiple collisions, we then present the pseudorapidity distributions of charged particles in nucleus-nucleus collisions as a function of beam energy and impact parameter. Finally, we analyze the centrality dependence of the pseudorapidity of the charged particles in Au+Au collisions at energies from √s_NN=19.6 to 200 GeV. The theoretical results are in good agreement with the experimental observations of the RHIC-PHOBOS collaboration.

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JIANG Zhi-Jin, SUN Yu-Fen and NI Wei-Xin. Centrality dependences of the pseudorapidity distributions of charged particles in Au+Au collisions at RHIC energies[J]. Chinese Physics C, 2010, 34(8): 1104-1110. doi: 10.1088/1674-1137/34/8/013

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Received: 2009-10-09
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Centrality dependences of the pseudorapidity distributions of charged particles in Au+Au collisions at RHIC energies

Corresponding author: JIANG Zhi-Jin,

Received Date: 2009-10-09

Accepted Date: 2010-03-13

Available Online: 2010-08-05

Abstract:

By employing the Glauber model, we give the centrality dependences of the numbers of participants and binary nucleon-nucleon collisions in nucleus-nucleus collisions. By taking into account the energy loss of the participants in their multiple collisions, we then present the pseudorapidity distributions of charged particles in nucleus-nucleus collisions as a function of beam energy and impact parameter. Finally, we analyze the centrality dependence of the pseudorapidity of the charged particles in Au+Au collisions at energies from √s_NN=19.6 to 200 GeV. The theoretical results are in good agreement with the experimental observations of the RHIC-PHOBOS collaboration.

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Centrality dependences of the pseudorapidity distributions of charged particles in Au+Au collisions at RHIC energies

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