Symmetry energy properties of neutron-rich nuclei from the coherent density fluctuation model applied to nuclear matter calculations with Bonn potentials

TL;DR

This paper investigates the symmetry energy and related properties of neutron-rich nuclei using a combination of nuclear matter calculations with Bonn potentials and the coherent density fluctuation model, focusing on Ni, Sn, and Pb isotopes.

Contribution

It introduces a novel approach combining Brueckner-Hartree-Fock calculations with the coherent density fluctuation model to study finite nuclei properties.

Findings

Symmetry energy values are derived for specific isotopic chains.

Three-body forces significantly influence the results.

Comparison with density-dependent potentials highlights model differences.

Abstract

We derive the values of nuclear symmetry energy, its components, as well as pressure in finite nuclei at saturation density from their corresponding values in nuclear matter obtained in non-relativistic Brueckner-Hartree-Fock calculations with the realistic Bonn B and Bonn CD potentials using the coherent density fluctuation model in the framework of a self-consistent Skyrme-Hartree-Fock plus BCS method. We focus on three isotopic chains of spherical nuclei (Ni, Sn, and Pb) and compare our results with those obtained with an effective Brueckner density-dependent potential. The role of the three-body forces on the considered quantities is also studied and discussed.