QCD_2 in the axial gauge revisited

Abstract

The 't Hooft model for the two-dimensional QCD in the limit of infinite number of colours is studied in the axial gauge. The mass-gap and the bound-state equations are derived using the two consequent Bogoliubov-like transformations. Chiral properties of the model are studied in the Hamiltonian and matrix approaches to the latter. Special attention is payed to the explicit pionic solution of the bound-state equation.

Comments: 6 pages, no figures, specialized style files included. Talk given by A.V.Nefediev at 10th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, 23-29 August 2001, to appear in Proceedings