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奇A Lu同位素负宇称Yrast带的研究
引用本文:吴兴举,梁渝生,徐进章,陈星蕖,邢正.奇A Lu同位素负宇称Yrast带的研究[J].中国物理 C,2000,24(4):342-346.
作者姓名:吴兴举  梁渝生  徐进章  陈星蕖  邢正
作者单位:[1]兰州重离子加速器国家实验室原子核理论研究中心,兰州 [2]中国科学院上海原子核研究所,上海
基金项目:中国科学院资助项目,核工业科学基金,19575025,Y7197AY103,,
摘    要:利用粒子一转子模型研究了奇A Lu核负宇称Yrast态带交叉前后的能谱和跃迁几率,理论值和实验值符合得较好.研究表明,161,163,165,167Lu负宇称Yrast态是三轴形变的;ab公式正确地描述了带交前后核心的转动惯量随角动量I的变化.

关 键 词:原子核结构  高自旋态  三轴形变  ab公式
收稿时间:1999-1-26

Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes
WU XingJu,LIANG YuSheng,XU JinZhang,CHEN XingQu,XING Zheng.Study of the Negative-Parity Yrast States in Odd-A Lu-Isotopes[J].High Energy Physics and Nuclear Physics,2000,24(4):342-346.
Authors:WU XingJu  LIANG YuSheng  XU JinZhang  CHEN XingQu  XING Zheng
Abstract:Using Particle-Rotor Model, the energy spectra and electromagnetic transitions ofthe negative-parity yrast states, before and after the band-crossing in odd-A Lu isotopes, areinvestigated and compared with the experimental data. It is noted that before and after theband-crossing the moment of inertia of the core is a smooth function of the total angular mo- mentum I and can be described by the ah formula; The triaxial deformation before and afterthe band-crossing determined from the calculations is appreciably different for 161,163,165 Lu,while it is more or less similar for 167 Lu.
Keywords:nuclear structure  high spin states  triaxial deformation  ab formula
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