Effects of the density dependence of nuclear symmetry energy on properties of superheavy nuclei

TL;DR

This paper investigates how the density dependence of nuclear symmetry energy influences the properties of superheavy nuclei, revealing its role in orbital shifts, shell closures, and neutron skin thickness within a relativistic mean-field framework.

Contribution

It demonstrates the impact of symmetry energy softening on superheavy nuclei properties, supporting the double shell closure in 292120 and analyzing neutron skin effects.

Findings

Softening of symmetry energy affects orbital shifts.

Supports double shell closure in 292120.

Density dependence influences neutron skin thickness.

Abstract

Effects of the density dependence of the nuclear symmetry energy on ground-state properties of superheavy nuclei are studied in the relativistic mean-field theory. It is found that the softening of the symmetry energy plays an important role in the empirical shift [Phys. Rev. C 67, 024309 (2003)] of spherical orbitals in superheavy nuclei. The calculation based on the relativistic mean-field models NL3 and FSUGold supports the double shell closure in $^{292}120$ with the softening of the symmetry energy. In addition, the significant effect of the density dependence of the symmetry energy on the neutron skin thickness in superheavy nuclei are investigated.