Quark-Gluon Plasma At Finite Baryon Density - A Large-Nc Approach

A simple model for the quark-gluon plasma with a nonzero baryon number B is developed in a microcanonical (i.e., fixed B) approach. The model exhibits features which one expects will emerge from a nonperturbative treatment of QCD. We show the existence of a critical chemical potential ${\ensuremath{\mu}}_{c}$ such that, for T>0, physical properties are unaffected by chemical potentials \ensuremath{\mu} when \ensuremath{\Vert}\ensuremath{\mu}\ensuremath{\Vert}${\ensuremath{\mu}}_{c}$. ${\ensuremath{\mu}}_{c}$ therefore resembles a mass gap.