Medium Influence of the Nucleon-Nucleon Cross Section on the Fragmentation

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2003,（6）
• 页码范围: 832-835
• 页数: 4页
• 语种: 英文

摘要

Based on an isospin-dependent quantum molecular dynamics model we studied the influence of a medium correction of an isospin-dependent nucleon-nucleon cross section on the fragmentation at the intermediate energy heavy-ion collisions. We found that the medium correction from an isospin-dependent nucleon-nucleon cross section increases the dependence of the fragmentation on the isospin effect of in-medium nucleon-nucleon cross section, at the same time, the momentum-dependent interaction also produces an important role for enhancing the influence of the medium correction on the isospin effect of two-body collisions in the fragmentation process.