Special Roles of Proton-halo Nucleus Structure on Momentum Dissipation in Heavy Ion Collisions  

作　　者：Guo Wenjun, Liu Jianye and Xing Yongzhong 

出　　处：《近代物理研究所和兰州重离子加速器实验室年报：英文版》2004年第1期9-9,共1页IMP & HIRFL Annual Report

摘　　要：We studied the special roles of proton-halo structure of 23Al on the momentum dissipation by using isospin dependent quantum molecular dynamics. In order to protrude the special roles of proton-halo structure on the reaction dynamics we compared the nuclear stopping (momentum dissipation) induced by proton-halo nucleus 23Al with those induced by a same mass stable nucleus 23Na. Fig.1 shows the nuclear stopping R at freeze out time for the reactions 23Al +48Ca and 23Na +48Ca at impact parameter 6=1.0 fm as a function ofWe studied the special roles of proton-halo structure of 23AI on the momentum dissipation by using isospin dependent quantum molecular dynamics. In order to protrude the special roles of proton-halo structure on the reaction dynamics we compared the nuclear stopping （momentum dissipation） induced by proton-halo nucleus 23Al with those induced by a same mass stable nucleus 23Na.

关 键 词：质子晕核 晕核结构 重离子碰撞 耗散 动量 量子分子动力学 同位旋相关 反应动力学 

分 类 号：O572.3[理学—粒子物理与原子核物理]