α-decay half-lives of superheavy nuclei and general predictions  

作　　者：董建敏 张鸿飞 王艳召 左维 苏昕宁 李君清 

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

出　　处：《Chinese Physics C》2009年第8期633-638,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10775061, 10505016, 10575119);Fundamental Research Fund for Physics and Mathematics of Lanzhou University (LZULL200805);CAS Knowledge Innovation Project (KJCX-SYW-N02);Major State Basic Research Developing Program of China (2007CB815004)

摘　　要：The generalized liquid drop model （GLDM） and the cluster model have been employed to calculate the α-decay half-lives of superheavy nuclei （SHN） using the experimental α-decay Q values. The results of the cluster model are slightly poorer than those from the GLDM if experimental Q values are used. The prediction powers of these two models with theoretical Q values from Audi et al. （QAudi） and Muntian et al. （QM） have been tested to find that the cluster model with QAudi and QM could provide reliable results for Z 〉 112 but the GLDM with QAudi for Z 112. The half-lives of some still unknown nuclei are predicted by these two models and these results may be useful for future experimental assignment and identification.The generalized liquid drop model （GLDM） and the cluster model have been employed to calculate the α-decay half-lives of superheavy nuclei （SHN） using the experimental α-decay Q values. The results of the cluster model are slightly poorer than those from the GLDM if experimental Q values are used. The prediction powers of these two models with theoretical Q values from Audi et al. （QAudi） and Muntian et al. （QM） have been tested to find that the cluster model with QAudi and QM could provide reliable results for Z 〉 112 but the GLDM with QAudi for Z 112. The half-lives of some still unknown nuclei are predicted by these two models and these results may be useful for future experimental assignment and identification.

关 键 词：superheavy nuclei Α-DECAY HALF-LIVES generalized liquid drop model cluster model 

分 类 号：O571.3[理学—粒子物理与原子核物理]