,Isospin Effect on Nuclear Stopping in Intermediate Energy Heavy Ion Collisions

• 作 者: 李庆峰 李祝霞
• 机 构: China Institute of Atomic Energy, P.O. Box 275(18), Beijing 102413 A “,”Institute of Theoretical Phy
• 出 处: 中国物理快报（英文版）
• 发表日期: 2002年3期

By using the isospin-dependent quantum molecular dynamics model, we study the dependence of nuclear stopping Qzz/A and R in intermediate energy heavy ion collisions on system size, initial N/Z, isospin symmetry potential and the medium correction of two-body cross sections. We find the effect of the initial N/Z ratio and isospinsymmetry potential on stopping is weak. The excitation function of Qzz/A and R depends on the form of medium correction of two-body cross sections, the equation ofstate of nuclear matter. Our results show that the behaviour of the excitation function of Qzz/A and R can provide clearer information of the isospin dependence of the medium correction of two-body cross sections