Medium Influence of the Nucleon-Nucleon Cross Section on the Fragmentation
LIU Jian-Ye1,2,3,4, XING Yong-Zhong1,2, GUO Wen-Jun3
1Institute for Theory of Modern Physics, Tianshui Normal University, Tianshui 741000
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
3Institute of Modern Physics, Chinese Academy of Sciences, PO Box 31, Lanzhou 730000
4CCAST (Word Laboratory), PO Box 8730, Beijing 100080
Medium Influence of the Nucleon-Nucleon Cross Section on the Fragmentation
LIU Jian-Ye1,2,3,4;XING Yong-Zhong1,2;GUO Wen-Jun3
1Institute for Theory of Modern Physics, Tianshui Normal University, Tianshui 741000
2Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
3Institute of Modern Physics, Chinese Academy of Sciences, PO Box 31, Lanzhou 730000
4CCAST (Word Laboratory), PO Box 8730, Beijing 100080
Abstract： 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.
LIU Jian-Ye;;XING Yong-Zhong;GUO Wen-Jun. Medium Influence of the Nucleon-Nucleon Cross Section on the Fragmentation[J]. 中国物理快报, 2003, 20(6): 832-835.
LIU Jian-Ye, , XING Yong-Zhong, GUO Wen-Jun. Medium Influence of the Nucleon-Nucleon Cross Section on the Fragmentation. Chin. Phys. Lett., 2003, 20(6): 832-835.
2003, Vol. 20 
