2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/219501We calculate the spectra of charmonium and bottomium in an approximation scheme which treats hard gluons perturbatively while soft gluons are expanded in a set of localized wave functions. Quark-antiquark and quark-antiquark-gluon sectors are included. Reasonable agreement with 2 parameters only is found but the spectra are too coulombic. Despite large coupling constant the admixture of the quark-antiquark-gluon sector is found to be remarkably small.6 pages, 4 figuresHigh Energy Physics - Phenomenologytext