Mesons and diquarks in Coulomb-gauge QCD

Abstract

I demonstrate how confinement in Coulomb-gauge QCD makes quark-quark states of the color anti-triplet (diquarks) move out of the physical spectrum. Mesons as color singlet quark-antiquark states, on the other hand have finite masses and for highly excited states in the meson spectra effective restoration of chiral symmetry can be observed.

Comments: 8 pages, contribution to the Mini-Workshop Bled 2006 "Progress in Quark Models", Bled, Slovenia, July 10-17, 2006. Changed textheight