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Isospin Effects of the Mean Field and Two-Body Collision on the Fragmentation Process |
| LIU Jian-Ye1,2;XING Yong-Zhong2,3; GUO Wen-Jun2;ZUO Wei1,2;LI Xi-Guo1,2 |
| 1Center of Theoretical Nuclear Physics, National
Laboratory of Heavy Ion Accelerator, Lanzhou 730000
2Institute of Modern Physics, Chinese Academy of Sciences, PO Box 31, Lanzhou 730000
3Department of Physics, Tianshui Normal College, Tianshui 741000 |
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| Cite this article: |
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LIU Jian-Ye, XING Yong-Zhong, GUO Wen-Jun et al 2002 Chin. Phys. Lett. 19 1078-1081 |
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Abstract Isospin effects of the mean field and two-body collision on the
fragmentation as well as their dependences on the momentum-dependent interaction at intermediate energy heavy ion collisions are studied by using an isospin-dependent quantum molecular dynamics model. We find the prominent isospin effects of the multiplicity of the intermediate mass fragments Nimf, where Nimf depends sensitively on the isospin effect of in-medium nucleon-nucleon cross section and weakly on the variation of symmetry potential in the intermediate energy region. The momentum dependence interaction enhances the sensitivety of Nimf on the isospin effect of two-body collision.
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| Keywords:
25.70.Pg
02.70.Ns
24.10.Lx
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Published: 01 August 2002
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| PACS: |
25.70.Pg
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02.70.Ns
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(Molecular dynamics and particle methods)
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24.10.Lx
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(Monte Carlo simulations (including hadron and parton cascades and string breaking models))
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