Thermal Equilibrium and Non-uniform Longitudinal Flow in Relativistic Heavy Ion Collisions
Thermal Equilibrium and Non-uniform Longitudinal Flow in Relativistic Heavy Ion Collisions
复制标题
DOI：
10.1103/physrevc.63.014901
复制
发表时间：
2000-05
期刊：
影响因子：
--
通讯作者：
S. Feng;Feng Liu;Lian-shou Liu
中科院分区：
文献类型：
--
作者：
S. Feng;Feng Liu;Lian-shou Liu
本文提出了一个相对论重离子碰撞的纵向非均匀流模型，并与14.6AGeV/cSi-Al和10.8AGeV/cAu-Au碰撞数据进行了比较。利用一种新的几何参数化图象解释了透明性对重粒子分布的影响以及重粒子碰撞系统中较大的停止现象。再现了Si-Al碰撞中质子和氘快度分布的中心凹陷。
A model with non-uniform flow in the longitudinal direction is proposed for the relativistic heavy-ion collisions and compared with the 14.6 A GeV/c Si-Al and 10.8 A GeV/c Au-Au collision data. The stronger influence of transparency on the distribution of heavier produced particles and the larger stopping in the heavier collision system are accounted for by using a new geometrical parameterization picture. The central dips in the proton and deuteron rapidity distributions for Si-Al collision are reproduced.