Density dependence of symmetry free energy of hot nuclei

TL;DR

This paper investigates how the symmetry free energy of hot nuclei varies with density and excitation energy using microscopic calculations that incorporate thermal and expansion effects, aligning well with experimental data.

Contribution

It introduces a microscopic approach to study the density dependence of symmetry free energy in hot nuclei considering thermal, expansion effects, and effective interactions.

Findings

Symmetry free energy decreases with decreasing density.

Results agree with experimental data.

Influence of mass, isospin, and EoS on symmetry energy.

Abstract

The density and excitation energy dependence of symmetry energy and symmetry free energy for finite nuclei are calculated microscopically in a microcanonical framework taking into account thermal and expansion effects. A finite-range momentum and density dependent two-body effective interaction is employed for this purpose. The role of mass, isospin and equation of state (EoS) on these quantities is also investigated; our calculated results are in consonance with the available experimental data.