Density Dependence of Nuclear Symmetry Energy

TL;DR

This paper investigates the high-density behavior of nuclear symmetry energy using a specific density dependence model, aligning with recent neutron star observations and providing insights into nuclear matter under extreme conditions.

Contribution

It introduces a novel density dependence model for nuclear symmetry energy that is neither too stiff nor too soft at high densities, consistent with astrophysical data.

Findings

The symmetry energy density dependence is moderate at high densities.

Results align with recent neutron star observations.

Provides constraints on nuclear matter models at high densities.

Abstract

High density behaviour of nuclear symmetry energy is studied on the basis of a stiffest density dependence of asymmetric contribution to energy per nucleon in charge neutral $n+p+e+\mu$ matter under beta equilibrium. The density dependence of nuclear symmetry energy obtained in this way is neither very stiff nor soft at high densities and is found to be in conformity with recent observations of neutron stars