2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198597A qualitative QCD analysis and a quantitative model calculation are given to show that the constituent quark model remains a good approximation even with the nucleon spin structure revealed in polarized deep inelastic scattering taking into account.12 pages Revtex, 1 figureHigh Energy Physics - PhenomenologyIs nucleon spin structure inconsistent with constituent quark model?text