title: Critical exponents of the Gross-Neveu model from the effective average action.
abstract: The phase transition of the Gross-Neveu model with N fermions is investigated by means of a nonperturbative evolution equation for the scale dependence of the effective average action. The critical exponents and scaling amplitudes are calculated for various values of N in d = 3. It is also explicitly verified that the Neveu-Yukawa model belongs to the same universality class as the Gross-Neveu model.
authors.affiliation: Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, D-69120, Heidelberg, Germany.
authors.forename: L
authors.initials: L
authors.lastname: Rosa
authors.forename: P
authors.initials: P
authors.lastname: Vitale
authors.forename: C
authors.initials: C
authors.lastname: Wetterich