Nuclear Matter from Effective Quark-Quark Interaction

Abstract

We study neutron matter and symmetric nuclear matter with the quark-meson model for the two-nucleon interaction. The Bethe-Bruckner-Goldstone many-body theory is used to describe the correlations up to the three hole-line approximation with no extra parameters. At variance with other non-relativistic realistic interactions, the three hole-line contribution turns out to be non-negligible and to have a substantial saturation effect. The saturation point of nuclear matter, the compressibility, the symmetry energy and its slope are within the phenomenological constraints. Since the interaction also reproduces fairly well the properties of the three nucleon system, these results indicate that the explicit introduction of the quark degrees of freedom within the considered constituent quark model is expected to reduce the role of three-body forces.

4 pages, 4 figures, 2 tables, matches the journal version

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Cited by in corpus (9)

• The Nuclear Symmetry Energy
• Unified equation of state for neutron stars on a microscopic basis
• Electric Dipole Polarizability in ${}^{208}$Pb as a Probe of the Symmetry Energy and Neutron Matter around ${\rho }_0/3$
• Nuclear Equation of state for Compact Stars and Supernovae
• Bayesian Inference of the Symmetry Energy and the Neutron Skin in ${}^{48}$Ca and ${}^{208}$Pb from CREX and PREX-2
• Are nuclear matter properties correlated to neutron star observables ?
• Nuclear matter equation of state from a quark-model nucleon-nucleon interaction
• Hybrid star structure with the Field Correlator Method
• The nuclear symmetry energy and the neutron skin thickness in nuclei