2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184703We solve Schwinger-Dyson (SD) equation for the color superconducting (CS) gap in nonlocal gauge which justifies the ladder approximation in subleading order calculation. The gap prefactor increases about 1.6 times to the leading order gap determined in Landau gauge.5 pages, 1 fig., a talk at 'Finite Density QCD at Nara', to appear in Prog. Theor. PhysNuclear Theorytext