Hot Nuclear Matter in the Quark Meson Coupling Model with Dilatons

Abstract

We study hot nuclear matter in an explicit quark model based on a mean field description of nonoverlapping nucleon bags bound by the self-consistent exchange of scalar and vector mesons as well as the glueball field. The glueball exchange as well as a realization of the broken scale invariance of quantum chromodynamics is achieved through the introduction of a dilaton field. The calculations also take into account the medium-dependence of the bag constant. The effective potential with dilatons is applied to nuclear matter. The nucleon properties at finite temperature as calculated here are found to be appreciably different from cold nuclear matter. The introduction of the dilaton potential improves the shape of the saturation curve at T=0 and is found to affect hot nuclear matter significantly.

LaTeX/TeX 12 pages (zak2), 13 figures in TeX format

References in corpus (6)

• The equation of state for two flavor QCD at N_t=6
• Thermodynamics of lattice QCD with two light quark flavours on a 16^3 x 8 lattice II
• Thermodynamics of Four-Flavour QCD with Improved Staggered Fermions
• Hot Nuclear Matter in the Quark Meson Coupling Model
• An Effective Lagrangian with Broken Scale and Chiral Symmetry IV: Nucleons and Mesons at Finite Temperature
• Deconfinement in the Quark Meson Coupling Model

Cited by in corpus (5)

• Droplet formation in cold asymmetric nuclear matter in the quark-meson-coupling model
• Thermal kaons production in the relativistic heavy ions collision
• Hot Hypernuclear Matter in the Modified Quark Meson Coupling Model
• Properties of Dense Strange Hadronic Matter with Quark Degrees of Freedom
• Hot nuclear matter in the modified quark-meson coupling model with quark-quark correlations