Entrance Channel Dependence of the Isospin Effects of the
Nuclear Stopping in Intermediate Energy Heavy-Ion Collisions
YANG Yan-Fang1,2, LIU Jian-Ye1,2, ZUO Wei1,2, GUO Wen-Jun2, ZHAO Qiang2
1Center of Theoretical Nuclear Physics, National
Laboratory of Heavy Ion Accelerator, Lanzhou 730000
2Institute of Modern Physics, Chinese Academy of Sciences, P. O. Box 31, Lanzhou 730000
Entrance Channel Dependence of the Isospin Effects of the
Nuclear Stopping in Intermediate Energy Heavy-Ion Collisions
YANG Yan-Fang1,2;LIU Jian-Ye1,2;ZUO Wei1,2;GUO Wen-Jun2;ZHAO Qiang2
1Center of Theoretical Nuclear Physics, National
Laboratory of Heavy Ion Accelerator, Lanzhou 730000
2Institute of Modern Physics, Chinese Academy of Sciences, P. O. Box 31, Lanzhou 730000
Abstract： The entrance channel dependence of the isospin effects of nuclear stopping in intermediate energy heavy-ion collisions has been studied by using an isospin-dependent quantum molecular dynamics with three different kinds of symmetry potentials. It is shown that nuclear stopping is sensitive to the beam energy, the impact parameter and the mass of the colliding system, specially very sensitive to the isospin dependence of in-medium nucleon-nucleon cross section, but insensitive to symmetry potential and the ratio of neutron to proton of colliding system. From this investigation. It is proposed that nuclear stopping can be used as a new probe to extract the information on the isospin dependence of in-medium nucleon-nucleon cross section in intermediate energy heavy-ion collisions.
(Monte Carlo simulations (including hadron and parton cascades and string breaking models))
引用本文:
YANG Yan-Fang;LIU Jian-Ye;ZUO Wei;GUO Wen-Jun;ZHAO Qiang. Entrance Channel Dependence of the Isospin Effects of the
Nuclear Stopping in Intermediate Energy Heavy-Ion Collisions[J]. 中国物理快报, 2001, 18(8): 1040-1043.
YANG Yan-Fang, LIU Jian-Ye, ZUO Wei, GUO Wen-Jun, ZHAO Qiang. Entrance Channel Dependence of the Isospin Effects of the
Nuclear Stopping in Intermediate Energy Heavy-Ion Collisions. Chin. Phys. Lett., 2001, 18(8): 1040-1043.
2001, Vol. 18 
