ABOUT THE REALIZATION OF CHIRAL SYMMETRY IN QCD(2)

Citation
A. Ferrando et V. Vento, ABOUT THE REALIZATION OF CHIRAL SYMMETRY IN QCD(2), Zeitschrift fur Physik. C, Particles and fields, 58(1), 1993, pp. 133-137
Citations number
36
ISSN journal
01709739
Volume
58
Issue
1
Year of publication
1993
Pages
133 - 137
Database
ISI
SICI code
0170-9739(1993)58:1<133:ATROCS>2.0.ZU;2-Z
Abstract
Two dimensional massless quantum chromodynamics presents many features which resemble those of the true theory. In particular the spectrum c onsists of mesons and baryons arranged in flavour multiplets without p arity doubling. We analyze the implications of chiral symmetry, which is not spontaneously broken in two dimensions, in the spectrum and in the quark condensate. We study how parity doubling, an awaited consequ ence of Coleman's theorem, is avoided due to the dimensionality of spa ce-time and confinement. We prove that a chiral phase transition is no t possible in the theory.