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

• 作者: Guo Wenjun Liu Jianye Xing Yongzhong
• 来源期刊: 近代物理研究所和兰州重离子加速器实验室年报：英文版
• 学科: 物理学
• 关键词: 质子晕核 重离子碰撞 晕核结构 量子分子动力学 反应动力学 破碎 23Al 同位旋相关
• 年，卷（期）: 2004,（1）
• 页码范围: 14
• 页数: 1页
• 分类号: O571.2

摘要

<正>We studied the special roles of proton-halo structure of 23Al on the fragmentation 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 fragmentation multiplicity induced by proton-halo nucleus 23Al with those induced by a same mass stable nucleus 23Na. Fig.1 shows the fragmentation multiplicity FZ at freeze out time for the reactions 23Al +48Ca and 23Na +48Ca at impact parameter 6-1.0 fm as a function of beam energy. The mea-