Branching Ratios of α Decay for Nuclei near Deformed Shell Closures  

作　　者：王艳召 张鸿飞 董建敏 苏昕宁 左维 李君清 

机构地区：[1]School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000 [2]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000

出　　处：《Chinese Physics Letters》2009年第6期87-90,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10775061, 10505016 and 10575119, the Fundamental Research Fund for Physics and Mathematics of Lanzhou University （LZULL200805）, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX-SYW-N02, the National Basic Research Program of China under Grant No 2007CB815004.

摘　　要：The generalized liquid drop model （GLDM） is extended to the region around deformed shell closure ^270Hs by taking into account the excitation energy EI＋ of the residual daughter nucleus and the centrifugal potential energy Vcen（r）. The branching ratios of a decays from the ground state of a parent nucleus to the ground state 0^＋ of its deformed daughter nucleus and to the first excited state 2^＋ are calculated in the framework of the GLDM. The results support the proposal that a measurement of a spectroscopy is a feasible method to extract information on nuclear deformation of superheavy nuclei around the deformed nucleus ^270Hs.The generalized liquid drop model （GLDM） is extended to the region around deformed shell closure ^270Hs by taking into account the excitation energy EI＋ of the residual daughter nucleus and the centrifugal potential energy Vcen（r）. The branching ratios of a decays from the ground state of a parent nucleus to the ground state 0^＋ of its deformed daughter nucleus and to the first excited state 2^＋ are calculated in the framework of the GLDM. The results support the proposal that a measurement of a spectroscopy is a feasible method to extract information on nuclear deformation of superheavy nuclei around the deformed nucleus ^270Hs.

分 类 号：O571.323[理学—粒子物理与原子核物理] Q949.365[理学—物理]