Competition between alpha-decay and beta-decay for Heavy and Superheavy Nuclei
In this work, the $β$-stable region for Z $\geq$ 90 is proposed. The calculated $β$-stable nuclei in the $β$-stable region are in good agreement with the ones obtained by Möller \emph{et al}.. The half-lives of the nuclei close to the $β$-stable region are calculated and the competition between $α$-decay and $β$-decay is systematically investigated. The calculated half-lives and the suggested decay modes are well in line with the experimental results. The predictions for half-lives and decay modes of the nuclei with Z = 107$-$110 are presented.
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