2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/117692I 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.8 pages, contribution to the Mini-Workshop Bled 2006 "Progress in Quark Models", Bled, Slovenia, July 10-17, 2006. Changed textheightHigh Energy Physics - Phenomenologytext