Equation of State in a Generalized Relativistic Density Functional Approach

Abstract

The basic concepts of a generalized relativistic density functional approach to the equation of state of dense matter are presented. The model is an extension of relativistic mean-field models with density-dependent couplings. It includes explicit cluster degrees of freedom. The formation and dissolution of nuclei is described with the help of mass shifts. The model can be adapted to the description of finite nuclei in order to study the effect of $\alpha$-particle correlations at the nuclear surface on the neutron skin thickness of heavy nuclei. Further extensions of the model to include quark degrees of freedom or an energy dependence of the nucleon self-energies are outlined.

arXiv comment6 pages, contribution to Proceedings of the workshop "Compact Stars in the QCD phase diagram IV", Prerow, Germany, September 26 - 30, 2014

References in corpus (9)

• Explosion Mechanisms of Core-Collapse Supernovae
• Composition and thermodynamics of nuclear matter with light clusters
• Neutron matter at next-to-next-to-next-to-leading order in chiral effective field theory
• Density dependence of the symmetry energy from neutron skin thickness in finite nuclei
• Neutron skin thickness of heavy nuclei with $\alpha$-particle correlations and the slope of the nuclear symmetry energy
• Non-congruence of the nuclear liquid-gas and deconfinement phase transitions
• Effects of the liquid-gas phase transition and cluster formation on the symmetry energy
• Light clusters in nuclear matter: Excluded volume versus quantum many-body approaches
• Neutron star equations of state with optical potential constraint