alpha decay half-lives for Z=108, 114, 120, 126 isotopes and N=162, 184 isotones

作者：Wang, J. M.^*; Zhang, H. F.; Li, J. Q.

来源：Journal of Physics G: Nuclear and Particle Physics , 2013, 40(4): 045103.

DOI：10.1088/0954-3899/40/4/045103

• SUPERHEAVY NUCLEI
• EMISSION
• ELEMENTS

Within the generalized liquid drop model (GLDM) including the proximity effects between nuclei in the neck and the gap between the nascent fragments, the a decay half-lives of the (108,114,120,126) isotopes and (162,184) isotones are investigated in the quasi-molecular shape path. The Q(alpha) is obtained from the macroscopic-microscopic method (MMM) or from the experimental data. The calculated results are compared with experimental data, and both reveal that (270)Hs is a double magic nucleus. The correct agreement allows us to make predictions for the alpha decay half-lives of other still-unknown superheavy nuclei(SHN) in the same framework. It is concluded that (298)114 may be a double magic nucleus and N = 184 the neutron magic number for Z = 120 and Z = 126, however, further experimental evidence is needed.

• 出版日期2013-4
• 单位兰州大学; 中国科学院近代物理研究所