Exotic Baryons in Two-Dimensional QCD

Abstract

Two-dimensional QCD has often been used as a laboratory for studying the full four-dimensional theory, providing, for example, an explicit realization of baryons as solitons. We review aspects of conventional baryons in two-dimensional QCD, including the classical and quantum contributions to their masses. We then discuss the spectrum of exotic baryons in two-dimensional QCD, commenting on the solitonic radius inferred from the excitation spectrum as well as the two-dimensional version of the Goldberger-Treiman relation relating meson couplings to current matrix elements. Two-dimensional QCD provides strong overall support to the chiral-soliton picture for the structure of normal and exotic baryons in four dimensions.

15 pages latex, no figures

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Cited by in corpus (4)

• Solitons, kinks and extended hadron model based on the generalized sine-Gordon theory
• Phase Structure and Compactness
• Exotic baryons in two-dimensional QCD and the generalized sine-Gordon solitons
• Renormalization of QCD_2