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

作者：J M Wang, H F Zhang, J Q Li · 发表于：Journal of Physics G Nuclear and Particle Physics · 年份：2013 · DOI：10.1088/0954-3899/40/4/045103 · 被引用次数：12 · 研究领域：Nuclear physics research studies、Astronomical and nuclear sciences、Atomic and Molecular Physics

Within the generalized liquid drop model (GLDM) including the proximity effects between nuclei in the neck and the gap between the nascent fragments, the α decay half-lives of the 108, 114, 120, 126 isotopes and 162, 184 isotones are investigated in the quasi-molecular shape path. The Q α 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 α 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.