$\alpha$-decay properties of even-even superheavy nuclei

TL;DR

This study calculates alpha-decay half-lives of superheavy nuclei with atomic numbers 106 to 126 and neutron numbers 150 to 200, identifying potential magic numbers and validating results against existing models.

Contribution

The paper introduces a comprehensive calculation of alpha-decay half-lives using proximity and Coulomb potentials, including the preformation factor, and predicts new magic numbers in superheavy nuclei.

Findings

Predicted neutron magic numbers at 162, 178, and 184.

Good agreement with semiempirical decay models.

Validated the use of proximity potentials and preformation factors.

Abstract

In this paper, we have calculated the $\alpha$-decay half-lives of superheavy nuclei with $106 \leq Z \leq 126$ and a neutron number of $150 \leq N \leq 200$ within proximity potentials and deformed-spherical Coulomb potentials by using $WS4$ $\alpha$-decay energy and the semi-classical 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.