2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177579Using generalized Nielsen identities a formal proof is given that the fermionic quasiparticle dispersion relations in a color superconductor are gauge independent. This turns out to involve gluonic tadpoles which are calculated to one-loop order in a two-flavor color superconductor. Regarding the appearance of gluon tadpoles, we argue that in QCD the color superconducting phase is automatically color neutral.7 pages, REVTEX4; v2: typo corrected, 2 references addedHigh Energy Physics - PhenomenologyNuclear Theorytext