Alpha-decay for heavy nuclei in the ground and isomeric states

作者：Dong, Jianmin^*; Zhang, Hongfei; Wang, Yanzhao; Zuo, Wei; Li, Junqing

来源：Nuclear Physics A, 2010, 832(3-4): 198-208.

DOI：10.1016/j.nuclphysa.2009.10.082

• Isomeric states
• alpha-decay
• Half-lives
• Angular momentum transfer
• Superheavy nuclet

The alpha-decay half-lives of nuclei in the ground states and Isomeric states have been calculated within the WKB approximation and Royer's formulas. The barrier in the quasimolecular shape path is determined within a generalized liquid drop model (GLDM). in which the centrifugal potential energy has been introduced to study the unfavored a-decay The agreement between the calculated results and experimental data indicates the reliability of studying alpha-decay of isomeric states with the generalized liquid drop model We find that their is no significant difference of preformation probability between Isomeric states and the corresponding ground states generally in favored alpha-decay Additionally. we extended Royer's formulas by taking account of the role of centrifugal harrier to study the unfavored alpha-decay, and some predicts oil the a decay half-lives of Isomers are made Finally.

• 出版日期2010-1-15
• 单位中国原子能科学研究院; 中国科学院近代物理研究所; 兰州大学