Isospin Effects on Multifragmentation in Reactions of 112)Sn+112Sn and 124Sn+124Sn at 40MeV/u

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ZHANG FengShou, CHEN LieWen, MING ZhaoYu and ZHU ZhiYuan. Isospin Effects on Multifragmentation in Reactions of 112)Sn+112Sn and 124Sn+124Sn at 40MeV/u[J]. Chinese Physics C, 2000, 24(3): 238-243.
ZHANG FengShou, CHEN LieWen, MING ZhaoYu and ZHU ZhiYuan. Isospin Effects on Multifragmentation in Reactions of 112)Sn+112Sn and 124Sn+124Sn at 40MeV/u[J]. Chinese Physics C, 2000, 24(3): 238-243. shu
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Received: 1999-01-08
Revised: 1900-01-01
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Isospin Effects on Multifragmentation in Reactions of 112)Sn+112Sn and 124Sn+124Sn at 40MeV/u

    Corresponding author: ZHANG FengShou,
  • 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 Shanghai Institute of Nuclear Research, The Chinese Academy of Shanghai, 201800, China4 CCASTWorld Laboratory P.O.Box 8730,Beijing 100080, China

Abstract: Within the framework of an IQMD model, multifragmentation in reactions of 112Sn+112Sn and 124Sn+124Sn at 40MeV/u is investigated. The calculated results are in qualitative agreement with the experimental data. Sighficantly different scalings of the mean IMF multiplicties with neutron, charged-particle, light charged-particle multiplicities, and Zbound are observed for the two reactions. In addition, Comparing with the results of expanding evaporating source model and an isospin-dependent percolation model, it is found that the isospin dependence of multifragmentation mainly results from the isospin dependent reaction dynamics.

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