Shape transitions in proton-rich Ho and Tm isotopes  

作　　者：朱剑钰 亓冲 刘梦曦 崔霄 许甫荣 

机构地区：[1]School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University [2]Center for Theoretical Nuclear Physics, National Laboratory for Heavy Ion Physics

出　　处：《Chinese Physics C》2009年第S1期9-11,共3页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10735010, 10525520, J0730316);Chinese Major State Basic Research Development Program (2007CB815000)

摘　　要：Total Routhian Surface (TRS) calculations have been performed for even-even nuclei along proton drip line to study nuclear ground-state deformations, as well as the odd proton nuclei Ho and Tm isotopes. The drip line nuclei show the expected shape transition with the shell e?ects. Ground-state shape changes from prolate to oblate at 143Ho and 145Tm in these two isotopes, which is due to the γ instability around N =76.Total Routhian Surface (TRS) calculations have been performed for even-even nuclei along proton drip line to study nuclear ground-state deformations, as well as the odd proton nuclei Ho and Tm isotopes. The drip line nuclei show the expected shape transition with the shell e?ects. Ground-state shape changes from prolate to oblate at 143Ho and 145Tm in these two isotopes, which is due to the γ instability around N =76.

关 键 词：γ softness proton drip line proton emitter 

分 类 号：O571[理学—粒子物理与原子核物理]