An improved semi-empirical relationship for cluster radioactivity  

作　　者：Yanzhao Wang Fengzhu Xing Yang Xiao Jianzhong Gu 王艳召;邢凤竹;肖洋;顾建中(Department of Mathematics and Physics,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Institute of Applied Physics,Shijiazhuang Tiedao University,Shjiazhuang 050043,China;China Institute of Atomic Energy,P.O.Box 275(10),Beijing 102413,China)

机构地区：[1]Department of Mathematics and Physics,Shijiazhuang Tiedao University,Shijiazhuang 050043,China [2]Institute of Applied Physics,Shijiazhuang Tiedao University,Shjiazhuang 050043,China [3]China Institute of Atomic Energy,P.O.Box 275(10),Bejing 102413,China

出　　处：《Chinese Physics C》2021年第4期366-379,共14页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(U1832120,11675265);the Natural Science Foundation for Outstanding Young Scholars of Hebei Province of China(A2020210012,A2018210146);the Continuous Basic Scientific Research Project(WDJC-2019-13);the Leading Innovation Project(LC192209000701).

摘　　要：An improved semi-empirical relationship for cluster radioactivity half-lives is proposed by introducing an accurate charge radius formula and an analytic expression of the preformation probability.Moreover,the cluster radioactivity half-lives for the daughter nuclei around ^(208)Pb or its neighbors and the ^(12)C radioactivity half-life of114Ba are calculated within the improved semi-empirical relationship.It is shown that the accuracy of the new relationship is improved significantly compared to its predecessor.In addition,the cluster radioactivity half-lives that are experimentally unavailable for the trans-lead and trans-tin nuclei are predicted by the new semi-empirical formula.These predictions might be useful for searching for the new cluster emitters of the two islands in future experiments.

关 键 词：cluster radioactivity released energy HALF-LIFE improved semi-empirical relationship 

分 类 号：O571.3[理学—粒子物理与原子核物理]