2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56323A renormalization scheme is suggested where QCD input parameters - quark mass and coupling constant - are expressed in terms of gauge invariant and infrared stable quantities. For the renormalization of coupling constant the quark anomalous electromagnetic moment is used; the latter is calculated in a two loop approximation. Examination of the renormalized S matrix indicated confinement phenomenon already in the framework of perturbation theory.9 pages, REVTeXHigh Energy Physics - Theorytext