DECAY AMPLITUDES IN 2-DIMENSIONAL QCD

Decay amplitudes for mesons in two-dimensional QCD are discussed. We s how that in spite of an infinite number of conserved charges, particle production is not entirely suppressed. This phenomenon is explained i n terms of quantum corrections to the combined algebra of higher-conse rved and spectrum-generating currents. We predict the qualitative form of particle production probabilities and verify that they are in agre ement with numerical data. We also discuss four-dimensional self-dual Yang-Mills theory in the light of our results.