1998/07/27 by I. Zakout, H. R. Jaqaman · 1 citation
Physics and Astronomy · #Dilaton #Glueball #High-Energy Particle Collisions Research #Meson #Nuclear matter #Nucleon #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #nucl-th
paper · pdf · doi:10.1103/physrevc.59.968
published as Phys.Rev. C59 (1999) 968-975 · LaTeX/TeX 12 pages (zak2), 13 figures in TeX format
arxiv created 1998/07/27 · openalex publication_date 1999/02/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.