Alpha decay half-lives of heavy nuclei within a generalized liquid drop model  

作　　者：张鸿飞 王祖凯 陈熙萌 左维 李君清 

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

出　　处：《Chinese Physics C》2009年第S1期95-97,共3页中国物理C（英文版）

基　　金：Supported by Natural Science Foundation of China (10775061, 10505016, 10575119)

摘　　要：Theoretical α-decay half-lives of the heaviest nuclei are calculated using the experimental Qα value. The barriers in the quasi-molecular shape path is determined within a Generalized Liquid Drop Model (GLDM) and the WKB approximation is used. The results are compared with calculations using the DensityDependent M3Y (DDM3Y) effective interaction and the Viola-Seaborg-Sobiczewski (VSS) formulae. The calculations provide consistent estimates for the half-lives of the α decay chains of these superheavy elements. The experimental data stand between the GLDM calculations and VSS ones in the most time.Theoretical α-decay half-lives of the heaviest nuclei are calculated using the experimental Qα value. The barriers in the quasi-molecular shape path is determined within a Generalized Liquid Drop Model (GLDM) and the WKB approximation is used. The results are compared with calculations using the DensityDependent M3Y (DDM3Y) effective interaction and the Viola-Seaborg-Sobiczewski (VSS) formulae. The calculations provide consistent estimates for the half-lives of the α decay chains of these superheavy elements. The experimental data stand between the GLDM calculations and VSS ones in the most time.

关 键 词：generalized liquid drop model alpha decay energy HALF-LIFE 

分 类 号：O571.6[理学—粒子物理与原子核物理]