The impact of charge symmetry and charge independence breaking on the properties of neutrons and protons in isospin-asymmetric nuclear matter

TL;DR

This paper examines how charge symmetry and charge independence breaking influence neutron and proton properties in asymmetric nuclear matter, finding these effects to be minimal across various conditions including neutron stars.

Contribution

It provides a detailed analysis of charge symmetry and charge independence breaking effects in neutron-rich matter, highlighting their negligible impact.

Findings

Charge symmetry and charge independence breaking effects are very small.

Effects are consistent across normal densities and high-density neutron matter.

Implications for neutron star properties are minimal.

Abstract

We investigate the effects of charge independence and charge symmetry breaking in neutron-rich matter. We consider neutron and proton properties in isospin-asymmetric matter at normal densities as well as the high-density neutron matter equation of state and the bulk properties of neutron stars. We find charge symmetry and charge independence breaking effects to be very small.