s_(NN)^(1/2)=130 GeV Au-Au碰撞中带负电强子的赝快度分布  

Pseudorapidity Distributions of Negatively Charged Hadron in Au-Au Collisions at s_(NN)^(1/2)=130 GeV

作　　者：孙建新[1] 

机构地区：[1]山西大同大学物理与电子科学学院,山西大同037009

出　　处：《山西大同大学学报（自然科学版）》2015年第4期21-24,共4页Journal of Shanxi Datong University(Natural Science Edition)

摘　　要：本文通过双柱热模型研究了sNN=130 Ge V Au-Au碰撞中不同中心度产生的带负电强子的赝快度分布,得到了相互作用系统各参数与中心度数值的关系。计算结果与SRAT合作组测量的实验数据一致,表明双柱热模型可以很好的描述Au-Au碰撞中带负电强子的赝快度分布。The pseudorapidity distributions of negatively charged hadron in Au-Au collisions at sNN=130 Ge V are investigated by using a double cylinder thermalization model, the relationship between various parameters and centrality numerical value in the interacting system are obtained. The calculated results are in agreement with the experimental data of the STAR collaborations, It is shown that the model can describe well the pseudorapidity distribution of negatively charged hadron in Au-Au collisions.

关 键 词：赝快度 高能 中心度 

分 类 号：O572.25[理学—粒子物理与原子核物理]