NEW RESULTS IN HADRON SPECTROSCOPY

Abstract

Hadron spectroscopy still follows basic 1966 physics of Sakharov, Zeldovich and Nambu. Constituent quark quasiparticles with effective masses and non-abelian color gauge electric and magnetic interactions fit all masses and magnetic moments of ground state mesons and baryons containing no more than one heavy or strange or heavy quark. Flavor antisymmetry explains absence of low-lying exotics and suggests diquark-triquark model for Θ+ pentaquark.