2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44429We show that for any gauge-fixing scheme with positive semi-definite functional integral measure, the inverse correlation length of the quark propagator is bounded below by one-half the pion mass.8 pages, no figuresHigh Energy Physics - PhenomenologyHigh Energy Physics - LatticeNuclear Theorytext