α-decay half-lives for even-even isotopes of W to U

2023/12/13 by Yong-Beom Choi, Choi, Yong-Beom, Chang‐Hwan Lee +7
Physics and Astronomy · #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2312.07872

Abstract

We investigate α-decay half-lives for 74 ≤ Z ≤ 92 even-even nuclei within the semiclassical WKB approximation in deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). The α-particle preformation factors are estimated from cluster-formation model using both empirical AME2020 binding energies and numerical ones obtained by a deep neural network (DNN) study in which available DRHBc binding energies are used as training set. We find that our estimated α-decay half-lives are qualitatively in agree with experimental results. We also compare our results with the empirical formulae, ZZCW and UNIV. Based on these observation, we extend our predictions of α-decay half-lives for the isotopes whose experimental data are not available.

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