Effects of Isospin and Momentum dependent Interactions on Thermal Properties of Nuclear Matte
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Graphical Abstract
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Abstract
In this article， three models with different isospin and momentum dependence are used to study the thermodynamical properties of asymmetric nuclear matter. They are isospin and momentumdependent MDI interaction constrained by the isospin diffusion data of heavy ion collision， the momentumindependent MID interaction and the isoscalar momentumdependent eMDYI interaction. Temperature effects of symmetry energy，mechanical and chemical instability and liquidgas phase transition are analyzed. It is found that for MDI model the temperature effects of the symmetry energy attribute from both the kinetic and potential energy， while only potential part contributes to the decreasing of the symmetry energy for MID and eMDYI models. We also find that the mechanical instability， chemical instability and liquidgas phase transition are all sensitive to the isospin and momentum dependence and the density dependence of the symmetry energy.
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