Dynamical symmetry breakdown in two-dimensional quantum chromodynamics. II. Boson representation and light quarks

Abstract

In this second paper of our trilogy on (1 + 1)-dimensional $\mathrm{SU}(N)$ quantum chromodynamics, we start by using a boson representation for the solution with dynamically broken symmetry given in the preceding paper for massless quarks. We then show that the general features of that solution are retained in the case of a small, finite quark mass.