Temperature dependence of volume and surface symmetry energy coefficients of nucle

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.

6 page including 5 figures, Phys. Lett. B (in press)

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• Study of hot thermally fissile nuclei using relativistic mean field theory
• Multifragmentation model for the production of astrophysical strangelets
• Parametrization of the surface energy in the ETF approximation
• The phase transition in hot $\Lambda$ hypernuclei within relativistic Thomas-Fermi approximation
• Loop-corrected scalar potentials and late-time acceleration in f(R) gravity