^(320)Cm低激发谱和位能曲面的微观研究  

Microscopic Study of Low Excitation Spectrum and Potential Surface of ^(320)Cm Nuclei

作　　者：张西琛 Zhang Xichen(School of Physical Science and Technology,Southwest University,Chongqing,China)

机构地区：[1]西南大学物理科学与技术学院,重庆

出　　处：《科学技术创新》2023年第1期9-12,共4页Scientific and Technological Innovation

摘　　要：利用相对论平均场理论[1-2]对^(320)Cm原子核性质进行研究。通过对其位能曲面的分析,在该核中发现了长椭形和扁椭形形变的形状共存[2-8]。两种形状共存态的能量差很大。并利用五维集体哈密顿量(5DCH)计算了该原子核的激发谱和波函数概率分布。也在理论上预测^(320)Cm是一个长椭和扁椭共存的原子核,这与平均场计算所得到的结果显示一致。The properties of^(320)Cm nuclei are studied by means of the relativistic mean field theory.Based on the analysis of the potential energy surface,it is found that the shape of the long ellipse and the flat ellipse deformation coexist in the core.The energy difference between the two shapes is huge.The excitation spectrum and wave function probability distribution of the atomic nucleus are calculated using the five-dimensional collective Hamiltonian (5DCH).It is also theoretically predicted that^(320)Cm is a coexisting nucleus with long and flat ellipses,which is consistent with the results obtained by mean field calculation.

关 键 词：形状共存 相对论平均场理论 波函数 

分 类 号：O571[理学—粒子物理与原子核物理]