https://doi.org/10.1140/epja/s10050-022-00813-8
Regular Article - Theoretical Physics
Probing the robustness of 
shell closure via the 
decay systematics
1
School of Physics, Xi’an Jiaotong University, 710049, Xi’an, People’s Republic of China
2
School of Nuclear Science and Technology, Lanzhou University, 730000, Lanzhou, People’s Republic of China
Received:
25
May
2022
Accepted:
8
August
2022
Published online:
2
September
2022
In the present work, the 
decay half-lives for even-even polonium–uranium nuclei, including three isotopes 
U Zhang et al. (in Phys Rev Lett 126:152502, 2021), are studied within the generalized liquid drop model with the total decay energy-dependent -particle preformation factors. The -particle preformation factors extracted from the experimental decay half-life are also investigated. The calculated decay half-lives can reproduce the experimental data within a factor of 1.74. The systematics of decay half-lives and -particle preformation factors suggest that the shell effect of 
closed-shell also exists in the 
uranium isotopes, although its robustness is weakening as the polonium isotope evolves towards the more proton-rich uranium isotope.
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