Isospin dependence of nuclear multifragmentation in Sn-112+Sn-112 and Sn-124+Sn-124 collisions at 40 MeV/nucleon
Isospin dependence of nuclear multifragmentation in Sn-112+Sn-112 and Sn-124+Sn-124 collisions at 40 MeV/nucleon
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DOI：
10.1103/physrevc.60.064604
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发表时间：
1999-11
影响因子：
3.1
通讯作者：
Feng-Shou Zhang;Lie-Wen Chen;Zhao-Yu Ming;Zhi-yuan Zhu
中科院分区：
文献类型：
--
作者：
Feng-Shou Zhang;Lie-Wen Chen;Zhao-Yu Ming;Zhi-yuan Zhu
在同位旋依赖的量子分子动力学模型框架内。研究了40 MeV/核子下Sn-112+Sn-112和Sn-124+Sn-124反应的多重破片现象。计算结果与实验数据具有较好的定性一致性，表明在两种反应体系中，中间质量碎片的平均数量与中子和带电粒子的数量有显著不同。同时表明，预平衡态发射对这些标度有强烈的影响。[s0556 - 2813(99) 05911 - 7]。
Within the framework of an isospin-dependent quantum molecular dynamics model. the multifragmentation in reactions of Sn-112+Sn-112 and Sn-124+Sn-124 at 40 MeV/nucleon is investigated. The calculated results are in good qualitative agreement with the experimental data which indicated that there were significantly different scalings of the mean number of intermediate mass fragments with the number of neutron and charged particles between the two reaction systems. Meanwhile, it is shown that the preequilibrium emission may affect strongly these scalings. [S0556-2813(99)05911-7].