Disappearance of isospin effect in projectile fragmentation at intermediate energy

被引：0

作者：

Ma Chun-Wang ^{[1
]}

Wei Hui-Ling ^{[1
]}

Wang Jun-Yang ^{[1
]}

Liu Gao-Jie ^{[1
]}

机构：

[1] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China

来源：

CHINESE PHYSICS B | 2009年 / 18卷 / 11期

基金：

中国国家自然科学基金;

关键词：

isospin effect; projectile fragmentation; neutron-rich nucleus; HEAVY-ION COLLISIONS; NUCLEAR FRAGMENTATION; STATISTICAL ABRASION; COLLECTIVE FLOW; DEPENDENCE; MODEL; DISTRIBUTIONS; EQUATION; STATE;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The 140 MeV/u Ca-40,Ca-48+ Be-9 and Ni-58,Ni-64+ Be-9 reactions are simulated by the statistical abrasion ablation model, and the simulation results are compared to the National Superconducting Cyclotron Laboratory (NSCL) experimental data. By comparing the fragment isotopic distributions of Ca-40,Ca-48 and Ni-58,Ni-64, we study the isospin effect in the projectile fragmentation induced by the neutron-rich nuclei at intermediate energy experimentally and theoretically. It is found that the isospin effect in projectile fragmentation decreases and even disappears as the violence of the collision increases.

引用

页码：4781 / 4785

页数：5

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