偶偶Ge和Se同位素核的形变HF态及负宇称带研究  

Studies on the HF States and the Negative Parity Bands of Even Even Ge and Se Nuclei

作　　者：徐延冰[1] 廖继志[1] 

机构地区：[1]四川大学物理系,成都610064

出　　处：《高能物理与核物理》2002年第6期613-619,共7页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金 (1 9875 0 40 )~~

摘　　要：将具有负宇称的fp轨道空间扩大到包含具有正宇称的 1g9/ 2 轨道 ,采用修正的表面δ相互作用 ,对6 4 Ge ,6 6 Ge,6 8Ge ,70 Se,72 Se和74 Se等 6个偶偶核做了形变HF计算 .得到了基态和一些激发态的解 .同时 ,还用近似角动量投影形变Hartree Fock (PDHF)方法 ,对6 4 Ge和74 Se进行了能谱计算 ,得到其正、负宇称带的解 ,计算结果与实验谱基本一致 .Using modified surface delta interaction and enlarging the fp configuration space to include the 1 g 9/2 states with the positive parity, the deformed Hartree Fock calculations for the six nuclei: 64 Ge, 66 Ge, 68 Ge, 70 Se, 72 Se and 74 Se are performed. The ground state and some particle hole excited configurations are obtained. The approximate angular momentum projected Hartree Fock (PDHF) method is applied to nuclei 64 Ge and 74 Se. Both of their positive and negative parity bands are obtained. The calculated energy spectra are consistent with experimental spectra well.

关 键 词：Ge SE 同位素核 形变HF态 角动量投影 单粒子能谱 负宇称带 偶偶核 性质 原子核 结构 激发带 能谱 锗 硒 

分 类 号：O571.2[理学—粒子物理与原子核物理]