中能轻奇异核反应总截面的激发函数测量  

Excitation Function Measurement of Total Reaction Cross Section at Intermediate Energy for Light Exotic Nuclei

作　　者：沈文庆[1] 冯军[1] 马余刚[1] 王建松[1] 方德清[1] 蔡翔舟[1] 苏前敏[1] 

机构地区：[1]中国科学院上海原子核研究所,上海201800

出　　处：《原子核物理评论》1999年第3期133-136,共4页Nuclear Physics Review

基　　金：国家自然科学基金;上海市科学技术发展基金;中科院九五基础性研究重大项目

摘　　要：通过对中能区和相对论能区反应总截面的比较， 可对了解核中核子密度分布的尾巴分量提供重要的信息， Ｇｌａｕｂｅｒ 模型的计算总是低估中能区的反应总截面， 对中子晕核和中子皮核， 这种低估更为严重． 因此， 基于 Ｇｌａｕｂｅｒ 模型从反应总截面提取核的大小存在着一些问题．A comparison of interaction cross section at relativistic and intermediate energy provides important information about the existence of tail component in the density distribution. The Glauber model calculation always underestimates the total reaction cross section at intermediate energy. The differences are enhanced for halo and skin nuclei. The method to extract the size of nuclei via Glauber model seems to have some ambiguity. The excitation function of total reaction cross section at intermediate energy for some light exotic nuclei should be measured. Such experimental data will possibly give the chance to solve above problem.

关 键 词：激发函数 反应总截面 奇异核 中能 

分 类 号：O571.42[理学—粒子物理与原子核物理]