Temperature dependence of volume and surface symmetry energy coefficients of nucle

TL;DR

This paper investigates how the symmetry energy coefficients related to volume and surface properties of nuclei change with temperature, using finite-temperature models and global fitting techniques across the periodic table.

Contribution

It provides a detailed analysis of the temperature dependence of symmetry energy coefficients in finite nuclei using the finite-temperature Thomas-Fermi approach and global liquid-drop model fitting.

Findings

Surface symmetry energy varies significantly with temperature.

Volume symmetry energy shows mild temperature dependence.

Results enhance understanding of nuclear properties at finite temperatures.

Abstract

The thermal evolution of the energies and free energies of a set of spherical and near-spherical nuclei spanning the whole periodic table are calculated in the subtracted finite-temperature Thomas- Fermi framework with the zero-range Skyrme-type KDE0 and the finite-range modified Seyler-Blanchard interaction. The calculated energies are subjected to a global fit in the spirit of the liquid-drop model. The extracted parameters in this model reflect the temperature dependence of the volume symmetry and surface symmetry coefficients of finite nuclei, in addition to that of the volume and surface energy coefficients. The temperature dependence of the surface symmetry energy is found to be very substantial whereas that of the volume symmetry energy turns out to be comparatively mild.