α-Decay half-lives of even–even nuclei of Pb, Po, Rn and Ra isotopes

Abstract

In the present work, we intended to study the [Formula: see text]-decay half-lives of the even–even nuclei from [Formula: see text]Po to [Formula: see text]Ra in ground state. We investigated a semi-empirical, one-parameter model based on tunneling through a potential barrier with the centrifugal and overlapping effects. Half-lives of [Formula: see text]-decay of even–even nuclei calculated by using different versions of proximity potentials (gpp77, MCW76 and MB77) are compared to experimental data. Also, the computed half-lives are compared with the Royer formula, Akrawy and Poenaru (AKRE) formula, modify Ren (MRen B) formula and Denisov–Khudenko (DEKH) formula and with the experimental data. The results are in good agreement with the experimental data.