Neutron star structure from a quark-model baryon-baryon interaction
1 Research Center for Nuclear Physics, Osaka University, 10-1, Mihogaoka, Osaka, 567-0047, Japan
2 INFN, Sezione di Catania, Via Santa Sofia 64, I-95123, Catania, Italy
Published online: 11 May 2016
We derive the equation of state (EOS) of nuclear matter from are alistic constituent quark model for the nucleon-nucleon interaction. We use the Brueckner-Bethe-Goldstone approach with the inclusion of the three hole-line contribution. We find that the resulting EOS reproduces correctly the saturation point, moreover the symmetry energy at low density, its slope, and the incompressibility turn out to be compatible with phenomenology. We calculate the mass-radius relation for neutron stars, and find maximum values close to two solar masses, in agreement with recent observational data.
© Owned by the authors, published by EDP Sciences - SIF, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.