Scattering Reactions and the Internal Structure of Baryons

Abstract

In the first chapter we showed that the baryon spectrum by itself already suggests that baryons are composed of quarks. However, the interaction between quarks cannot be easily deduced from the energies of the states, since different models yield nearly identical and well-fitting descriptions of the mass spectrum. Such models include the flavor SU(6) model, the MIT bag model, the Skyrmion bag model, and potential models with nonrelativistic quarks. Luckily lattice calculations are now good enough to demonstrate that the correct model, namely QCD, gives equally good results.