Critical analysis of quark-meson coupling models for nuclear matter and finite nuclei

Abstract

Three versions of the quark-meson coupling (QMC) model are applied to describe properties of nuclear matter and finite nuclei. The models differ in the treatment of the bag constant and in terms of nonlinear scalar self-interactions. As a consequence opposite predictions for the medium modifications of the internal nucleon structure arise. After calibrating the model parameters at equilibrium nuclear matter density, binding energies, charge radii, single-particle spectra and density distributions of spherical nuclei are analyzed and compared with QHD calculations. For the models which predict a decreasing size of the nucleon in the nuclear environment, unrealistic features of the nuclear shapes arise.

29 pages with 11 figures

References in corpus (5)

• Recent Progress in Quantum Hadrodynamics
• The quark-meson coupling model for Lambda, Sigma and Xi hypernuclei
• Self-consistent description of $\Lambda$ hypernuclei in the quark-meson coupling model
• Naturalness in the quark-meson coupling model
• Nuclear Matter Properties of the Modified Quark Meson Coupling Model

Cited by in corpus (21)

• Nucleon and hadron structure changes in the nuclear medium and impact on observables
• Neutron star properties in the quark-meson coupling model
• Hybrid stars in the quark-meson coupling model with superconducting quark matter
• Fock terms in the quark-meson coupling model
• Quark mean field model for nuclear matter and finite nuclei
• Hadron-quark mixed phase in the quark-meson coupling model
• Warm asymmetric matter in the Quark Meson Coupling Model
• Effect of nucleon structure variation on the longitudinal response function
• New treatment of the chiral SU(3) quark mean field model
• Quark-meson coupling model for antikaon condensation in neutron star matter with strong magnetic fields
• Neutron star matter in the quark-meson coupling model in strong magnetic fields
• Neutron stars and strange stars in the chiral SU(3) quark mean field model
• Liquid-gas phase transition and Coulomb instability of asymmetric nuclear systems
• Phase transition from hadronic matter to quark matter
• Liquid-gas phase transition in nuclear matter including strangeness
• Reevaluation of the density dependence of nucleon radius and mass in the global color symmetry model of QCD
• Droplet formation in cold asymmetric nuclear matter in the quark-meson-coupling model
• Quark-Meson Coupling Model for a Nucleon
• Quark-meson coupling model for a nucleon
• Modification of nucleon properties in nuclear matter and finite nuclei
• Quark mean field model with density dependent couplings for finite nuclei