Neutron removal cross section as a measure of neutron skin

TL;DR

This paper investigates the linear relationship between neutron removal cross section and neutron skin thickness in neutron-rich nuclei, proposing a new quantitative measure for neutron skin based on cross section data.

Contribution

It demonstrates a linear correlation between neutron removal cross section and neutron skin thickness, introducing a method to quantify neutron skin using cross section measurements.

Findings

Good linear correlation between $\sigma_{-N}$ and neutron skin thickness.

Relative increase in cross section can quantify neutron skin.

Adjusting neutron diffuseness affects neutron skin size.

Abstract

We study the relation between neutron removal cross section ($\sigma_{-N}$) and neutron skin thickness for finite neutron rich nuclei using the statistical abrasion ablation (SAA) model. Different sizes of neutron skin are obtained by adjusting the diffuseness parameter of neutrons in the Fermi distribution. It is demonstrated that there is a good linear correlation between $\sigma_{-N}$ and the neutron skin thickness for neutron rich nuclei. Further analysis suggests that the relative increase of neutron removal cross section could be used as a quantitative measure for the neutron skin thickness in neutron rich nuclei.