Thermodynamical Properties of Asymmetric Nuclear Matter in Generalized Hybrid Derivative Coupling Model : Nuclear Physics

概要

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In this work we have studied the properties of asymmetric nuclear matter at zero and finite temperature in a wide range of density and asymmetry parameter using recently proposed generalized hybrid derivative coupling model. The temperature and asymmetry dependence of the bulk quantities such as compressibility, binding energy per nucleon, saturation density, chemical potential, entropy per nucleon, etc. have been explored. This is useful to understand the dynamics of supernova explosion. We have studied the density and temperature dependence of symmetry energy and briefly discussed its role in the evaluation of proton fraction at T = 0, in equilibrium with neutron rich matter. We have also studied proton fraction for T ≠ 0 by free energy minimization. Dependence of bulk properties on the hybridization parameter of our model has been studied. The asymmetry and temperature dependence of the characteristics of liquid-gas phase transition have also been studied. We have compared our results with those of other investigators.
理論物理学刊行会の論文
1997-09-25