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arXiv · 2410.15157

Superheavy Magic Nuclei: Ground-State Properties, Bubble Structure and {\alpha}-Decay Chains

R. Sharma·A. Jain·M. Kumawat·J. K. Deegwal·Abdul Quddus·G. Saxena
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Abstract

A systematic investigation of superheavy nuclei in the isotopic chains of proton numbers Z=106, 114, 120, and 126 together with isotonic chains of neutron numbers N=162, 172, and 184 is presented in the theoretical framework of relativistic mean-field density functionals based on density-dependent meson-nucleon couplings. Ground-state properties, including binding energy, shape, deformation, density profile, and radius, are estimated to provide compelling evidence of magicity in these even-even nuclei, aligning with the concept of the 'island of stability'. The analysis reveals central depletion in the charge density, indicating a bubble-like structure, primarily attributed to the substantial repulsive Coulomb field and the influence of higher l-states. A thorough examination of potential decay modes, employing various semi-empirical formulas, is presented. The probable alpha-decay chains are evaluated, demonstrating excellent agreement with available experimental data

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R. Sharma, A. Jain, M. Kumawat, J. K. Deegwal, Abdul Quddus, G. Saxena. 2024-10-19. Superheavy Magic Nuclei: Ground-State Properties, Bubble Structure and {\alpha}-Decay Chains. https://arxiv.org/abs/2410.15157

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