Superheavy Magic Nuclei: Ground-State Properties, Bubble Structure and {\alpha}-Decay Chains
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
Cite
@article{arxiv.2410.15157,
title = {Superheavy Magic Nuclei: Ground-State Properties, Bubble Structure and {\alpha}-Decay Chains},
author = {R. Sharma and A. Jain and M. Kumawat and J. K. Deegwal and Abdul Quddus and G. Saxena},
journal= {arXiv preprint arXiv:2410.15157},
year = {2024}
}
Comments
24 Pages, 8 figures, 4 Tables, Accepted in Nuclear Physics A