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arXiv · 2604.21784

Ground-state properties of superheavy $Z=122$ isotopes within the deformed relativistic Hartree-Bogoliubov theory in continuum

Jin-Hong Zhuang·Zhen-Hua Zhang·Yuan-Yuan Wang·Cong Pan·Kai-Yuan Zhang·Huan-Yu Zhang·Yu Sun
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Abstract

The ground-state properties of superheavy $Z = 122$ isotopes are investigated using the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). Bulk properties, including binding energies, Fermi energies, nucleon separation energies, quadrupole deformations, and root-mean-square radii, are calculated. The results are compared with those obtained from the relativistic continuum Hartree-Bogoliubov (RCHB) theory. By examining the dependence on the angular-momentum cutoff and the effects of triaxial and octupole deformations, a strategy for determining the ground states is suggested. Furthermore, based on an analysis of the Fermi and nucleon separation energies, the proton and neutron drip lines for $Z = 122$ isotopes are determined within both the DRHBc and RCHB frameworks. The possible magic numbers $N=184$, 258, and 350 are also suggested. Finally, the evolution of single-particle levels, deformation, charge and neutron radii as well as average pairing gaps with increasing neutron number, is discussed.

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Jin-Hong Zhuang, Zhen-Hua Zhang, Yuan-Yuan Wang, Cong Pan, Kai-Yuan Zhang, Huan-Yu Zhang, Yu Sun. 2026-04-23. Ground-state properties of superheavy $Z=122$ isotopes within the deformed relativistic Hartree-Bogoliubov theory in continuum. https://arxiv.org/abs/2604.21784

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