About the realization of chiral symmetry in QCD2

Details About the realization of chiral symmetry in QCD2 About the realization of chiral symmetry in QCD2

1992-11-02

arxiv.org/abs/hep-ph/9211264v1

Z.Phys. C58 (1993) 133-138

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, latex, ftuv/92-2

Scientific paper

10.1007/BF01554086

Two dimensional massless Quantum Chromodynamics presents many features which resemble those of the true theory. In particular the spectrum consists of mesons and baryons arranged in flavor multiplets without parity 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 consequence of Coleman's theorem, is avoided due to the dimensionality of space-time and confinement. We prove that a chiral phase transition is not possible in the theory.

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