Isospin Effect on Nuclear Stopping in Intermediate Energy Heavy Ion Collisions
LI Qing-Feng1, LI Zhu-Xia1,2,3
1China Institute of Atomic Energy, P.O. Box 275(18), Beijing 102413
2Institute of Theoretical Physics, Chinese Academy of Sciences, P.O.Box 2735, Beijing 100080
3Center of Theoretical Nuclear Physics, National Laboratory of Lanzhou Heavy Ion Accelerator, Lanzhou 730000
Isospin Effect on Nuclear Stopping in Intermediate Energy Heavy Ion Collisions
LI Qing-Feng1;LI Zhu-Xia1,2,3
1China Institute of Atomic Energy, P.O. Box 275(18), Beijing 102413
2Institute of Theoretical Physics, Chinese Academy of Sciences, P.O.Box 2735, Beijing 100080
3Center of Theoretical Nuclear Physics, National Laboratory of Lanzhou Heavy Ion Accelerator, Lanzhou 730000
Abstract： 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 initial N/Z ratio, isospin symmetry 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 of state of nuclear matter. Our results show 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.
LI Qing-Feng;LI Zhu-Xia;. Isospin Effect on Nuclear Stopping in Intermediate Energy Heavy Ion Collisions[J]. 中国物理快报, 2002, 19(3): 321-323.
LI Qing-Feng, LI Zhu-Xia,. Isospin Effect on Nuclear Stopping in Intermediate Energy Heavy Ion Collisions. Chin. Phys. Lett., 2002, 19(3): 321-323.
2002, Vol. 19 
