Temperature and momentum dependence of single-particle properties in hot asymmetric nuclear matter

TL;DR

This paper investigates how momentum-dependent interactions influence the properties of hot asymmetric nuclear matter, focusing on single-particle potentials, symmetry potential, and effective mass splitting, with an emphasis on temperature effects and interaction parametrization.

Contribution

It introduces a self-consistent model analyzing temperature effects on single-particle properties with a focus on momentum dependence and interaction parametrization in asymmetric nuclear matter.

Findings

Symmetry potential behavior strongly depends on interaction parametrization.

Temperature effects significantly influence single-particle potentials.

Isospin mass splitting is less sensitive to parametrization.

Abstract

We have studied the effects of momentum dependent interactions on the single-particle properties of hot asymmetric nuclear matter. In particular, the single-particle potential of protons and neutrons as well as the symmetry potential have been studied within a self-consistent model using a momentum dependent effective interaction. In addition, the isospin splitting of the effective mass has been derived from the above model. In each case temperature effects have been included and analyzed. The role of the specific parametrization of the effective interaction used in the present work has been investigated. It has been concluded that the behavior of the symmetry potential depends strongly on the parametrization of the interaction part of the energy density and the momentum dependence of the regulator function. The effects of the parametrization have been found to be less pronounced on the isospin mass splitting.