Nuclear dynamical octupole deformation in heavy-ion reactions

Nuclear dynamical octupole deformation in heavy-ion reactions
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重离子反应中的核动力学八极变形

DOI:
10.1007/s11467-015-0510-0
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发表时间:
2015-10
期刊:
Front. Phys.
影响因子:
--
通讯作者:
En-Guang Zhao
En-Guang Zhao
中科院分区:
其他
文献类型:
--
作者:
Cheng Tang;Xin Jin;Nan Wang;En-Guang Zhao

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在量子分子动力学(QMD)模型中,研究了重离子聚变反应接近过程中弹体与靶体中心距离的动态八极子变形。研究了最大动力八极子变形与入射能量的关系。在接近过程中可以观察到动态八极子变形,并且随着入射能量的减小,最大动态八极子变形更加显著。研究了质子中心和中子中心在弹丸和靶中的分布。在重离子聚变反应的接近过程中,由于强库仑势的作用,两核质子中心之间的距离大于中子中心之间的距离。
Within the quantum molecular dynamics (QMD) model, the dynamical octupole deformation is studied as a function of the central distance between the projectile and target in the approaching process of heavy-ion fusion reactions. The dependence of the maximum dynamical octupole deformations on the incident energies is also investigated. The dynamical octupole deformations can be observed during the approaching process, and the maximum dynamical octupole deformations become more significant with decreasing incident energies. The distributions of the proton and neutron centers in the projectile and target are also investigated, respectively. In the approaching process of heavy-ion fusion reactions, the separation between proton centers for two nuclei is larger than that between neutron centers because of the strong Coulomb potential.
DOI: 10.1103/physrevc.70.064609
发表时间: 2004-12-01
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影响因子: 3.1
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