https://doi.org/10.1140/epja/s10050-025-01600-x
Regular Article - Theoretical Physics
Nonlocality effect in 
decay half-lives for even-even nuclei within a two potential approach
Xingzhi College, Zhejiang Normal University, 321004, Jinhua, Zhejiang, China
Received:
12
March
2025
Accepted:
16
May
2025
Published online:
2
June
2025
In this paper, we carefully look at the -decay half-lives of 196 even-even nuclei using a two-potential approach that is made better by taking into account an alpha particle’s effective mass that changes with coordinates. The result shows that the accuracy of this model has been improved after considering effective mass for the alpha particle. Furthermore, considering decay energies derived from three mass models, namely the Weizsacker–Skyrme-4 (WS4) mass model, the relativistic continuum Hartree–Bogoliubov theory mass model, and the FRDM (2012), we extend this model to predict the -decay half-lives of Z = 118 and 120 isotopes. Finally, we carefully study the predicted decay energies and half-lives of Z = 118 and 120 isotopes and discuss the shell structure of superheavy nuclei. We found that the shell effect is obvious at N = 178 and at N = 184 in the WS4 mass model and FRDM (2012), while the shell effect is only obvious at N = 184 in the relativistic continuum Hartree–Bogoliubov theory mass model.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
