Liquid-gas phase transition in hot asymmetric nuclear matter with density-dependent relativistic mean-field models

Abstract

The liquid-gas phase transition in hot asymmetric nuclear matter is studied within density-dependent relativistic mean-field models where the density dependence is introduced according to the Brown-Rho scaling and constrained by available data at low densities and empirical properties of nuclear matter. The critical temperature of the liquid-gas phase transition is obtained to be 15.7 MeV in symmetric nuclear matter falling on the lower edge of the small experimental error bars. In hot asymmetric matter, the boundary of the phase-coexistence region is found to be sensitive to the density dependence of the symmetry energy. The critical pressure and the area of phase-coexistence region increases clearly with the softening of the symmetry energy. The critical temperature of hot asymmetric matter separating the gas phase from the LG coexistence phase is found to be higher for the softer symmetry energy.

To be published in Phys. Lett. B

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• Correlations between critical parameters and bulk properties of nuclear matter
• Effects of finite size and symmetry energy on the phase transition of stellar matter at subnuclear densities
• Distributions of the largest fragment size in multifragmentation: Traces of a phase transition
• Influence of spin polarizability on liquid gas phase transition in the nuclear matter
• Density-dependent relativistic mean-field model for ${\Xi }^{-}$ hypernuclei
• Hot magnetized nuclear matter: Thermodynamic and Saturation Properties
• Charmed hypernuclei within density-dependent relativistic mean-field theory
• Ground-state properties of light kaonic nuclei signaling symmetry energy at high densities