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

作者：Dong Jian-Min^*; Zhang Hong-Fei; Wang Yan-Zhao; Zuo Wei; Su Xin-Ning; Li Jun-Qing

来源：Chinese Physics C, 2009, 33(8): 633-638.

DOI：10.1088/1674-1137/33/8/007

• superheavy nuclei
• alpha-decay
• half-lives
• generalized liquid drop model
• cluster model

The generalized liquid drop model (GLDM) and the cluster model have been employed to calculate the alpha-decay half-lives of superheavy nuclei (SHN) using the experimental alpha-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. (Q(Audi)) and Muntian et al. (Q(M)) have been tested to find that the cluster model with Q(Audi) and Q(M) could provide reliable results for Z > 112 but the GLDM with Q(Audi) 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.

• 出版日期2009-8
• 单位中国科学院近代物理研究所; 兰州大学