Light Clusters and Pasta Phases in Warm and Dense Nuclear Matter

Abstract

The pasta phases are calculated for warm stellar matter in a framework of relativistic mean-field models, including the possibility of light cluster formation. Results from three different semiclassical approaches are compared with a quantum statistical calculation. Light clusters are considered as point-like particles, and their abundances are determined from the minimization of the free energy. The couplings of the light-clusters to mesons are determined from experimental chemical equilibrium constants and many-body quantum statistical calculations. The effect of these light clusters on the chemical potentials is also discussed. It is shown that including heavy clusters, light clusters are present until larger nucleonic densities, although with smaller mass fractions.

15 pages, 13 figures, accepted for publication in Physical review C

References in corpus (13)

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• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
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• Influence of light nuclei on neutrino-driven supernova outflows
• Statistical description of complex nuclear phases in supernovae and proto-neutron stars
• Supernova equations of state including full nuclear ensemble with in-medium effects
• Light clusters, pasta phases and phase transitions in core-collapse supernova matter
• Constraining supernova equations of state with equilibrium constants from heavy-ion collisions
• Relativistic Brueckner-Hartree-Fock theory for finite nuclei
• Description of light clusters in relativistic nuclear models
• Comparison of equation of state models with different cluster dissolution mechanisms

Cited by in corpus (19)

• Heavy Baryons in Compact Stars
• Light clusters in warm stellar matter: explicit mass shifts and universal cluster-meson couplings
• Full distribution of clusters with universal couplings and in-medium effects
• Domains and defects in nuclear "pasta"
• Low density nuclear matter with light clusters in a generalized nonlinear relativistic mean-field model
• Light clusters in dilute heavy-baryon admixed nuclear matter
• Tetraneutron condensation in neutron rich matter
• The proto-neutron star inner crust in the liquid phase
• Clustering in nuclei at finite temperature
• Light clusters in warm stellar matter: calibrating the cluster couplings
• The proto-neutron star inner crust in a multi-component plasma approach
• Fluctuations in the pasta phase
• Cold dilute nuclear matter with $\alpha$-particle condensation in a generalized nonlinear relativistic mean-field model
• Equilibrium nuclear ensembles taking into account vaporization of hot nuclei in dense stellar matter
• Hyperonization in compact stars
• Critical properties of calibrated relativistic mean-field models for the transition to warm, non-homogeneous nuclear matter
• Light clusters in the liquid proto-neutron star inner crust
• Influence of the tetraneutron on the EoS under core-collapse supernovae and heavy-ion collisions conditions
• Inner crust equations of state for CompOSE