Finite Size Effect on Gluon Dissociation of J/ψin Relativistic Heavy Ion Collisions  

作　　者：Jingjing Wang Baoyi Chen Yunpeng Liu 王静静;陈保义;刘云朋(Department of Applied Physics,Tianjin University,Tianjin 300350,China)

机构地区：[1]Department of Applied Physics,Tianjin University,Tianjin 300350,China

出　　处：《Chinese Physics Letters》2024年第10期38-42,共5页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.12175165)。

摘　　要：Thermal quantities,including the the entropy density and gluon spectrum,of quark matter within a box that is finite in the longitudinal direction are calculated using a bag model.Under the assumption of entropy conservation,the corresponding gluon dissociation rate of J/ψis studied.It reaches a maximum at a certain longitudinal size L_(m),below which the suppression is weak even if the temperature becomes higher than that without the finite size effect,and above which the dissociation rate approaches to the thermodynamic limit gradually with increasing longitudinal size of the fireball.

关 键 词：ENTROPY DISSOCIATION FINITE 

分 类 号：O571.6[理学—粒子物理与原子核物理]