Half-lives of α-decay from nuclei with Z = 92 − 118 using the double folding model with relativistic NN interactions
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Date
2022-06-21
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Abstract
The α-decay half-lives of nuclei with Z = 92 − 118 have been calculated using the WKB semi-classical
approximation. The α-daughter nuclear interaction potentials are obtained from the double folding model,
where the effective nucleon-nucleon (NN) interactions are obtained from relativistic mean field theory La-
grangian (R3Y). In addition to using R3Y NN interactions containing only linear σ , ω, and ρ mesons
(R3Y-HS), R3Y parametrizations containing non-linear terms (NL2 and NL-SH) are also employed. In
fact, they are found to give better descriptions of the α-decay half-lives than R3Y-HS. Moreover, two em-
pirical formulas are employed in the study. They have been included to further test the accuracy of the R3Y
models.