Charged-particle pseudorapidity distributions in Au＋Au collisions at RHIC

• Published in: Chinese physics C Vol. 33; no. 4; pp. 274 - 280
• Main Author: 王增伟 姜志进
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.04.2009; Science College,Shanghai Science and Technology University,Shanghai,200093,China
• Subjects: Glauber模型; RHIC; 二进制; 功能参数; 带电粒子; 核子碰撞; 核核碰撞; 赝快度分布; Glauber model; spectator; pseudorapidity distribution; binary nucleon-nucleon collision
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/33/4/007

Using the Glauber model, we present the formulas for calculating the numbers of participants, spectators and binary nucleon-nucleon collisions. Based on this work, we get the pseudorapidity distributions of charged particles as the function of the impact parameter in nucleus-nucleus collisions. The theoretical results agree well with the experimental observations made by the BRAHMS Collaboration in Au＋Au collisions at √^SNN=200 GeV in different centrality bins over the whole pseudorapidity range.