Isospin effects of the Skyrme potential and the momentum dependent interaction at intermediate energy heavy ion collisions  

作　　者：郭文军 刘建业 

机构地区：[1]College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China [2]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China

出　　处：《Chinese Physics C》2008年第3期172-176,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10435080,10447006,10575075);CAS Knowledge Innovation Project(KJCX2-SW-N02);Major State Basic Research Development Program in China(G2000077400);the Scientific Research Funds for the Doctor,University of Shanghai for Science and Technology;the Science and Technological Fund of Shanghai Municipal Education Commission for Selecting and Cultivating Excellent University Young Teachers

摘　　要：We improve the isospin dependent quantum molecular dynamical model by including isospin effects in the Skyrme potential and the momentum dependent interaction to obtain an isospin dependent Skyrme potential and an isospin dependent momentum interaction. We investigate the isospin effects of Skyrme potential and momentum dependent interaction on the isospin fractionation ratio and the dynamical mechanism in intermediate energy heavy ion collisions. It is found that the isospin dependent Skyrme potential and the isospin dependent momentum interaction produce some important isospin effects in the isospin fractionation ratio.We improve the isospin dependent quantum molecular dynamical model by including isospin effects in the Skyrme potential and the momentum dependent interaction to obtain an isospin dependent Skyrme potential and an isospin dependent momentum interaction. We investigate the isospin effects of Skyrme potential and momentum dependent interaction on the isospin fractionation ratio and the dynamical mechanism in intermediate energy heavy ion collisions. It is found that the isospin dependent Skyrme potential and the isospin dependent momentum interaction produce some important isospin effects in the isospin fractionation ratio.

关 键 词：heavy ion collision isospin fractionation ratio isospin effect isospin dependent momentuminteraction isospin dependent Skyrme potential 

分 类 号：O571.6[理学—粒子物理与原子核物理]