Gluon Condensation in Quark-Gluon Plasma

Abstract

According to the generally accepted view, at high enough temperature or/and density a transition may take place from the hadronic phase of the matter into the quark-gluon plasma phase.1, 2 We hope that in high energy heavy-ion collisions there is a chance to reach that region of physical conditions where this phase transition is possible. How the plasma is produced and what kind of phase transitions takes place are questions of extreme interest. A number of approaches has been developed to estimate the temperature and the density of the transition.3,4,5 In the quark gluon plasma another phase transition, associated with the restoration of the chiral invariance is also expected.6We will assume that the transition from hadronic phase into the quark-gluon plasma is already accomplished and we will search for further possibilities of phase transitions of the plasma, applying the mean field approximation.