Renormalization-group analysis of dynamical symmetry breaking in QCD

Abstract
We perform a renormalization-group analysis of the dynamical symmetry breaking in QCD based on the Nambu—Jona-Lasinio approach. We show how the mass scale that the fermions acquire in dynamical symmetry breaking can be calculated in terms of the invariant cutoff. We also determine the high-energy behavior of the quark two-point function.