https://doi.org/10.1140/epja/s10050-023-01040-5
Regular Article - Theoretical Physics
An improved empirical formula of 
decay half-lives for superheavy nuclei
1
School of Nuclear Science and Technology, University of South China, 421001, Hengyang, China
2
College of Physics and Electronics, Central South University, 410083, Changsha, China
3
School of Mathematics and Physics, Qingdao University of Science and Technology, 266033, Qingdao, China
4
National Exemplary Base for International Science and Technology, Collaboration of Nuclear Energy and Nuclear Safety, University of South China, 421001, Hengyang, China
5
Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, 421001, Hengyang, China
6
Key Laboratory of Low Dimensional Quantum Structures and Quantum Control, Hunan Normal University, 410081, Changsha, China
Received:
17
March
2023
Accepted:
23
May
2023
Published online:
9
June
2023
Based on the Santhosh formula (Nucl Phys A 825:159, 2009), considering the blocking effect of unpaired nucleons and the orbital angular momentum taken away by the emitted particle, we put forward an improved formula to evaluate decay half-lives for superheavy nuclei. Using this formula, we systematically investigate the decay half-lives of 141 nuclei ranging from Z = 96 to Z = 118 with the corresponding root-mean-square (rms) deviations being 0.319 , 0.619 and 0.388 for 41 even–even, 78 odd-A and 22 odd–odd nuclei, respectively. In addition, this improved formula is generalized to predict decay half-lives for 100 nuclei with Z = 117, 118, 119 and 120. For comparison, the predicted results obtained by using phenomenological formulae, semi-microscopic and/or microscopic models are also present. The corresponding predictions consistently indicate that N = 184 may be the next possible neutron magic number.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. 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.
