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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2002, Vol. 26> Issue(S1) : 63-72 

Role of Momentum Dependent Interaction on the Isospin Effects of Fragmentations and Dissipations at Intermediate Energy Heavy Ion Collisions

  •  Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China3 Department of Physics, Tianshui Normal College, Gansu Tianshui 741000, China

  • Based on an isospin-dependent quantum molecular dynamics model,the role of the momentum dependent interaction(MDI) on the isopspin effects of fragmentations and dissipations in the intermediate energy heavy ion collisions are studied.It was found that the values of the nuclear stopping,the number of nucleon emissions and the multiplicity of the intermediate mass fragments with MDI are larger than those without MDI. Especially the differences between those quantities with isospin dependent in-medium nucleon-nucleon cross section and those without the isospin independent in-medium nucleon-nucleon cross section (i.e., the isospin effect of in-medium nucleon-nucleon cross section) under MDI are also larger than those differences without MDI in the relative high energy region, which means that the momentum dependent interaction enhances the sensitivities of those quantities to the isospin effect of in-medium nucleon-nucleon cross section at the relative high beam energies.
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XING Yong-Zhong, LIU Jian-Ye, GUO Wen-Jun, ZUO Wei and LI Xi-Guo. Role of Momentum Dependent Interaction on the Isospin Effects of Fragmentations and Dissipations at Intermediate Energy Heavy Ion Collisions[J]. Chinese Physics C, 2002, 26(S1): 63-72.
XING Yong-Zhong, LIU Jian-Ye, GUO Wen-Jun, ZUO Wei and LI Xi-Guo. Role of Momentum Dependent Interaction on the Isospin Effects of Fragmentations and Dissipations at Intermediate Energy Heavy Ion Collisions[J]. Chinese Physics C, 2002, 26(S1): 63-72. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Role of Momentum Dependent Interaction on the Isospin Effects of Fragmentations and Dissipations at Intermediate Energy Heavy Ion Collisions

    Corresponding author: XING Yong-Zhong,
  • Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China3 Department of Physics, Tianshui Normal College, Gansu Tianshui 741000, China
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 2002-06-24

Abstract: Based on an isospin-dependent quantum molecular dynamics model,the role of the momentum dependent interaction(MDI) on the isopspin effects of fragmentations and dissipations in the intermediate energy heavy ion collisions are studied.It was found that the values of the nuclear stopping,the number of nucleon emissions and the multiplicity of the intermediate mass fragments with MDI are larger than those without MDI. Especially the differences between those quantities with isospin dependent in-medium nucleon-nucleon cross section and those without the isospin independent in-medium nucleon-nucleon cross section (i.e., the isospin effect of in-medium nucleon-nucleon cross section) under MDI are also larger than those differences without MDI in the relative high energy region, which means that the momentum dependent interaction enhances the sensitivities of those quantities to the isospin effect of in-medium nucleon-nucleon cross section at the relative high beam energies.

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