Nuclear and Neutron Star Radii

Abstract

We investigate the correlation between nuclear neutron radii and the radius of neutron stars. We use a well-established hadronic SU(3) model based on chiral symmetry that naturally includes non-linear vector meson and scalar meson - vector meson couplings. The relative strengths of the couplings modify the nuclear isospin-dependent interactions. We study the dependence of nuclear and neutron star radii on the coupling strengths. The relevance of the results for parity-violating electron-nucleus scattering and the URCA process in neutron stars is discussed.

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• Nuclear Matter and Neutron stars in a Parity Doublet Model
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• The application of the Quark-Hadron Chiral Parity-Doublet Model to neutron star matter
• Delta Baryons in Neutron-Star Matter under Strong Magnetic Fields
• Impact of baryon resonances on the chiral phase transition at finite temperature and density
• Modern nuclear and astrophysical constraints of dense matter in a renormalized chiral approach
• Phase Structure in a Hadronic Chiral Model
• Effective meson masses, effective meson-nucleon couplings and neutron star radii
• The hyperon neutron star mean field model
• Neutron Stars in a Chiral Model with Finite Temperature
• Compact Stars in Hadron and Quark-Hadron Models
• Chiral, parity-doublet, effective-Lagrangian mean-field theories for nuclear and astrophysical phenomenology