非对称碰撞中峰值碎片产生过程中库仑和对称势的相互作用

Sakshi Sharma, Rohit Kumar, S. Gautam, R. Puri
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引用次数: 0

摘要

探讨了核对称势和库仑势对中间质量碎片的峰值能量([公式:见文])和峰值多重度([公式:见文])的作用,以及它们对反应质量不对称性的依赖关系。利用同位旋相关量子分子动力学(IQMD)模型进行计算。我们还表明,动量依赖的相互作用具有均匀的影响[公式:见文本],这些影响与反应的质量不对称性无关。此外,我们看到,随着反应质量不对称性的增加,通过库仑势和对称势进入的同位旋效应显示出非常重要的作用。因此,质量不对称反应是研究核对称能效应的灵敏工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Interplay of Coulomb and symmetry potential in peak fragment production in asymmetric collisions
Role of the nuclear symmetry potential and Coulomb potential is explored on the peak energy of intermediate mass fragments ([Formula: see text]) and on peak multiplicity ([Formula: see text]) and their dependence on mass asymmetry of the reaction is also investigated. The calculations are done using Isospin-dependent Quantum Molecular Dynamics (IQMD) model. We also showed that the momentum-dependent interactions have uniform effects of [Formula: see text] and these effects are independent of mass asymmetry of the reaction. Further, we see that isospin effects that enter through the Coulomb and symmetry potential show much significant role as one increases the mass asymmetry of reaction. Mass asymmetric reactions thus serve a sensitive tool to investigate the nuclear symmetry energy effects.
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