高能金-金碰撞末态带电粒子的赝快度分布  

Pseudorapidity distribution of charged particles in Au-Au collisions at high energy

作　　者：孙玉芬[1] 姜志进[1] 娄小辉[1] 

机构地区：[1]上海理工大学理学院,上海200093

出　　处：《上海理工大学学报》2011年第1期75-79,共5页Journal of University of Shanghai For Science and Technology

基　　金：上海市重点学科建设资助项目(S30501)

摘　　要：给出了核子-核子碰撞末态带电粒子的赝快度分布函数,采用Glauber模型,计算出核-核碰撞过程中的平均参与者数、碰撞区域内的旁观者数、带头粒子数以及平均核子-核子碰撞数,获得了核-核碰撞的末态带电粒子的赝快度分布方程,与PHOBOS合作组(sNN)^(1/2)=130 GeV的金-金碰撞末态带电粒子的赝快度分布的实验结果吻合.The pseudorapidity distribution function of charged particles in nucleon-nucleon collisions was presented.By using Glauber model,the mean numbers of participants,spectators in collision area,leading particles and binary nucleon-nucleon collisions were calculated.The pseudorapidity distributions of charged particles in nucleus-nucleus collisions are obtained.The theoretical results are consistent with those of the experimental observations in Au-Au collisions at （sNN）^（1/2）=130 GeV made by the PHOBOS collaboration.

关 键 词：GLAUBER模型 核-核碰撞 核子-核子碰撞 赝快度分布 

分 类 号：O572.2[理学—粒子物理与原子核物理]