Study on Superdeformed Bands of ^(152)Dy and Its Neighboring Nuclei  

作　　者：齐彦军 黄丽旬 李涛 刘树新 

机构地区：[1]School of Physics,Peking University

出　　处：《Plasma Science and Technology》2012年第5期408-411,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (No.10675006)

摘　　要：152^Dy is the first observed superdeformed nucleus, whose band structure reflects the typical distribution of high j low Ω orbitals of superdeformed nuclei in A-150 mass region. The particle-number conserving treatment of the cranked shell model with monopole and quadrupole paring interactions is adopted to investigate the observed six superdeformed bands in 152^Dy. The π[523]7/2 orbital is emphasized for the first time to interpret the microscopic structure of band 2 and 3 of 152^Dy. A new comprehension is proposed on the basis of ever existing experimental and theoretical results, and the reliability is illustrated by several superdeformed bands of neighboring nuclei.152^Dy is the first observed superdeformed nucleus, whose band structure reflects the typical distribution of high j low Ω orbitals of superdeformed nuclei in A-150 mass region. The particle-number conserving treatment of the cranked shell model with monopole and quadrupole paring interactions is adopted to investigate the observed six superdeformed bands in 152^Dy. The π[523]7/2 orbital is emphasized for the first time to interpret the microscopic structure of band 2 and 3 of 152^Dy. A new comprehension is proposed on the basis of ever existing experimental and theoretical results, and the reliability is illustrated by several superdeformed bands of neighboring nuclei.

关 键 词：superdeformed band momenta of inertia cranked shell model doubly magic 152^Dy 

分 类 号：O571[理学—粒子物理与原子核物理]