200A GeV S+Au重离子碰撞中光子的赝快度分布

Pseudorapidity Distribution of Photons in S+Au Heavy Ion Collisions at 200A GeV

本文根据热化柱模型研究了中心度分别为7%、13.2%和20%三种情况200A GeV S+Au碰撞产生的光子的赝快度分布。根据模型计算得到了三个参数值随中心度的变化关系,以及热化柱的长度随中心度值的变化关系。模型描述与实验数据大体一致。

In this article, the pseudorapidity distribution of photon production in S+Au collisions at 200 A Ge V for 7%, 13.2%, and20% three different centrality ranges has been studied based on the thermalization column model. The three parameter values and length of thermalization column change with the centrality have been obtained based on the model. The description based on the model is broadly consistent with the experimental data.