偶偶Pd同位素核的HF态及能谱研究  

Study on HF States and Spectra of Even Even Pd Nuclei

作　　者：徐延冰[1] 刘英太[1] 廖继志 

机构地区：[1]四川大学物理系

出　　处：《原子核物理评论》1998年第3期129-133,共5页Nuclear Physics Review

基　　金：国家自然科学基金

摘　　要：采用修正的表面δ相互作用（ＭＳＤＩ），对１０６Ｐｄ、１０８Ｐｄ、１１０Ｐｄ、１１２Ｐｄ、１１４Ｐｄ和１１６Ｐｄ等６个偶偶核做了形变ＨＦ计算．得到了长椭球、扁椭球和一些激发态的解．结果表明，在质量数为１０６到１１６间的原子核存在形状过渡，且单粒子能级随质量数及组态的不同而不同．同时，还用近似角动量投影形变Ｈａｒｔｒｅｅ－Ｆｏｃｋ（ＰＤＨＦ）方法对１１０Ｐｄ进行了能谱计算，其计算结果与实验谱基本一致，并且发现投影谱具有γ软性核谱的特征．By using modified surface delta interaction, the deformed Hartree Fock calculations are performed for the six nuclei: 106 Pd, 108 Pd, 110 Pd, 112 Pd, 114 Pd and 116 Pd. The prolate, oblate and some particle hole excited configurations are obtained.The calculated results show that there is a form transition from mass number 106 to 116, and that single particle energy spectra are different not only for the nuclei with different mass number but also for different configuration. The approximate angular momentum projected Hartree Fock (PDHF) method is applied to nuclei 110 Pd. The results of calculated energy spectra are in agreement well with experimental spectra. It is found that the PDHF spectra have the properties of the γ soft nuclear spectra.

关 键 词：形变HF态 单粒子能谱 偶偶核 Pd同位素 

分 类 号：O571.23[理学—粒子物理与原子核物理]