Algebraic Method for Large-Nc QCD

Abstract

We discuss an algebraic method for large-N_c baryon structure. In addition to the widely used quark representation for the large-N_c algebra, we consider several other representations that reflect important dynamical effects. The axial vector coupling constants both in the isoscalar (flavour-singlet) and isovector sectors are discussed in detail. Importance of the pion degrees of freedom is pointed out.