偶偶核高自旋态的微观研究（III）对同位素^（126）Ba，^（128）Ba和^（130）Ba的应用  

The Microscopic Investigation of High-Spin States for Even-Even Nuclei(III)Application to isotopes￣(126)Ba,￣(128)Ba and￣(130)Ba

作　　者：桑建平[1] 刘庸 

机构地区：[1]武汉大学物理系,华中师范大学粒子物理所

出　　处：《高能物理与核物理》1994年第12期1102-1106,共5页High Energy Physics and Nuclear Physics

摘　　要：从壳模型组态及核子－核子有效相互作用出发，借助于一种描述偶偶核高自旋态的微观理论方案，对同位素１２６Ｂａ，１２８Ｂａ和１３０Ｂａ的低能态及质子拆对占据ｈ１１／２侵入轨道所出现的回夸现象作了研究．得到了与实验定性符合较好的结果．对Ｙｒａｓｔ带，进一步探讨了带间相互作用强度与耦合算子之间的关系．Starting from the shell model configurations and the effective nucleon-nucleon interactions,a microscopic approach is applied to study high-spin states for the isotopes 126Ba,128Ba and 130Ba.The low-lying states and the band built upon aligned(h11/2)proton pair configurations are considered.Energy levels and backbendings are reproduced well.For the yrast band,the dependence of the strength of interband interaction on the coupling operator is discussed.

关 键 词：微观研究 Yrast带 偶偶核 高自旋态 钡同位素 

分 类 号：O571.22[理学—粒子物理与原子核物理]