2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/161635Phenomenological model for confining Lagrangian based on the perfect dia-electric property of the vacuum of QCD, proposed by Kogut-Susskind and by 't Hooft, is derived by the stability of the condensed vacuum.8 pages, 1 FigureHigh Energy Physics - Theorytext