摘要
Fragments produced in the reaction of 60 MeV/n^(18)O on Be have been measured experimentally.The isotopic distribution of fragmentation reaction is well reproduced by a modified statistical abrasion-ablation model It is predicted that the isotopic distribution shifts toward the neutron rich side for neutron rich projectile,but this isospin effect decreases with the increase of the atomic number difference Z-Z_(A)and disappears at last,where Z and Z_(A)are atomic numbers of the isotopic distribution and the projectile respectively.
作者
方德清
沈文庆
冯军
蔡翔舟
王建松
苏前敏
马余刚
诸永泰
李松林
吴和宇
苟全补
靳根明
詹文龙
郭忠言
肖国清
FANG De-Qing;SHEN Wen-Qing;FENG Jun;CAI Xiang-Zhou;WANG Jian-song;SU Qian-Min;MA Yu-Gang;Zhu Yong-tai;LI Song-Lin;WU He-Yu;GOU Quan-bu;JIN Gen-Ming;ZHAN Wen-Long;GUO Zhong-Yan;XIAO Guo-Qing(Shanghai Institute of Nuclear Research,Chinese Academy of Sciences,Shanghai 201800;Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000)
基金
Supported by the National Natural Science Foundation of China for Distinguished Young Scholar under Grand No.19625513
National Natural Science Foundation of China under Grant No.19675059
Shanghai Science and Technology Development Fund under Grant No.96XD14011.