alpha-decay properties of even-even superheavy nuclei

摘要

In this paper, we have calculated the a-decay half-lives of superheavy nuclei with 106 <= Z <= 126 and a neutron number of 150 <= N <= 200 within proximity potentials and deformed-spherical Coulomb potentials by using WS4 alpha-decay energy and the semiclassical Wentzel-Kramers-Brillouin approximation for penetration probability. Besides, we have included the preformation factor within the cluster-formation model. We have investigated magic numbers and submagic numbers in the mentioned region; with high probability, 162, 178, and 184 are predicted as neutron magic numbers. We also have confirmed that there is good agreement between our predicted half-lives and the ones obtained from semiempirical relationships such as Royer, VSS, UDL, and SemFIS2.