Wednesday, July 17, 2013

1307.4166 (D. L. Whittenbury et al.)

Quark-Meson Coupling Model, Nuclear Matter Constraints and Neutron Star Properties    [PDF]

D. L. Whittenbury, J. D. Carroll, A. W. Thomas, K. Tsushima, J. R. Stone
We explore the equation of state for nuclear matter in the quark-meson coupling model, including full Fock terms. The comparison with phenomenological constraints can be used to restrict the few additional parameters appearing in the Fock terms which are not present at Hartree level. Because the model is based upon the in-medium modification of the quark structure of the bound hadrons, it can be applied without additional parameters to include hyperons and to calculate the equation of state of dense matter in beta-equilibrium. This leads naturally to a study of the properties of neutron stars, including their maximum mass, their radii and density profiles.
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