Mass Relations for the Quark-Diquark Model

Abstract

Quark model with potentials derived from QCD, including the quark-diquark model for excited hadrons gives mass formulae in very good agreement with experiment and goes a long way in explaining the approximate symmetries and supersymmetries of the hadronic spectrum, including the symmetry breaking mechanism.

Comments: 4 pages, revtex; Invited talk given at XXIV International Colloquium on Group Theoretical Methods in Physics (Paris, July 15-20, 2002)