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Chinese Physics C> 2000, Vol. 24> Issue(4) : 326-330 

A Sensitive Probe for Isospin-Dependent Nucleon-Nucleon Cross Section in Intermediate Energy Heavy Ion Collision

  •  Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 Institute of Modern Physics,Southwest Jiaotong University,Chengdu 610031, China

  • Based on the light charged particles and fragments emitted towards forward angles by using the heavy projectile on the light target, we have made use of isospin-dependent quantum molecular dynamics to investigate a sensitive probe on the isospin effects in the process of intermediate energy heavy ion collision. The calculation results show that the correlation between the multiplicity of intermediate mass fragments and the total number of charged par- ticles in the energy region above 80MeV/u is a sensitive probe on the isospin-dependent nucleon-nucleon cross section in medium in intermediate energy heavy ion collision, meanwhile the isospin effects of symmetric energy is not obvious in the same energy region.
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    [1] LI BaoAn, CHEN MingKo, Baur W. Inter. Jour. Mod. Phys. E., 1998, 7(2):20 2 ZHANG FengShau, GE LingXiao. Nuclear Multi–fragmentation. (in Chinese), Beijing:Scientific Press, 1998 (张丰收,葛凌霄.原子核多重碎裂.北京:科学出版社,1998) 3 LIU JianYe, GE YuCheng, YANG FuZhong. Z. Phys., 1993, A345: 187; LIU JianYe, ZHANG ShaoGuang.Z.Pays., 1994,A348: 31; LIU Hang, LIU JianYe. Z. Phys., 1996, A354:311 4 CHEN LieWen, ZHANG FengShou, JIN GengMin. Phys. Rev., 1998, C58:22835 CHEN LieWen, ZHANG FengShou, ZENG XiangHua et al. High Energy Phys. and Nucl. Phys. (in Chinese), 1998,22: 1035. (陈列文,张丰收,曾样华等.高能物理与核物理.1998,22:1035)6 CHEN Bo, LIU JianYe, ZHANG FengShou et al. High Enemy Phys. and Nacl. Phys. (in Chinese), 2000, 24(3):244 (陈波,刘建业,张丰收等.高能物理与核物理,2000,24(3):244)

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CHEN Bo, ZHAO Qiang, LIU JianYe, ZHANG FengShou, WANG ShunJin, CHEN LieWen and ZUO Wei. A Sensitive Probe for Isospin-Dependent Nucleon-Nucleon Cross Section in Intermediate Energy Heavy Ion Collision[J]. Chinese Physics C, 2000, 24(4): 326-330.
CHEN Bo, ZHAO Qiang, LIU JianYe, ZHANG FengShou, WANG ShunJin, CHEN LieWen and ZUO Wei. A Sensitive Probe for Isospin-Dependent Nucleon-Nucleon Cross Section in Intermediate Energy Heavy Ion Collision[J]. Chinese Physics C, 2000, 24(4): 326-330. shu
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Received: 1999-02-03
Revised: 1900-01-01
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A Sensitive Probe for Isospin-Dependent Nucleon-Nucleon Cross Section in Intermediate Energy Heavy Ion Collision

    Corresponding author: CHEN Bo,
  • Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China3 Institute of Modern Physics,Southwest Jiaotong University,Chengdu 610031, China
  • Received Date: 1999-02-03
  • Accepted Date: 1900-01-01
  • Available Online: 2000-04-05

Abstract: Based on the light charged particles and fragments emitted towards forward angles by using the heavy projectile on the light target, we have made use of isospin-dependent quantum molecular dynamics to investigate a sensitive probe on the isospin effects in the process of intermediate energy heavy ion collision. The calculation results show that the correlation between the multiplicity of intermediate mass fragments and the total number of charged par- ticles in the energy region above 80MeV/u is a sensitive probe on the isospin-dependent nucleon-nucleon cross section in medium in intermediate energy heavy ion collision, meanwhile the isospin effects of symmetric energy is not obvious in the same energy region.

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