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

中国物理C, 2008, 32(3): 172-176.

^1, , ^2,

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;Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,china

基金项目: 国家重点基础研究发展计划(973计划)(G2000077400) 国家自然科学基金(10435080;10447006;10575075) 中国科学院基金(KJCX2-SW-N02) 博士科学研究基金

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

GUO Wen-Jun ^1, , LIU Jian-Ye ^2,

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;Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,china

Keywords： heavy ion collision

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.

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