Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

TL;DR

This paper investigates neutron and proton skin formation in deformed nuclei using Skyrme Hartree-Fock calculations, comparing results with experimental data and analyzing the effects of nuclear deformation.

Contribution

It provides a detailed analysis of neutron skin emergence in deformed nuclei within the Skyrme HF+BCS framework, highlighting deformation effects on skin thicknesses.

Findings

Neutron skin formation is confirmed in certain isotopes.

Proton skin formation is unlikely in studied nuclei.

Deformation influences neutron skin thicknesses.

Abstract

A study of the charge and matter densities and the corresponding rms radii for even-even isotopes of Ni, Kr, and Sn has been performed in the framework of deformed self-consistent mean field Skyrme HF+BCS method. The resulting charge radii and neutron skin thicknesses of these nuclei are compared with available experimental data, as well as with other theoretical predictions. The formation of a neutron skin, which manifests itself in an excess of neutrons at distances greater than the radius of the proton distribution, is analyzed in terms of various definitions. Formation of a proton skin is shown to be unlikely. The effects of deformation on the neutron skins in even-even deformed nuclei far from the stability line are discussed.