2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44317Four of the five expected Goldstone modes, which will be eaten up by gauge fields, in neutral two-flavor color superconductor are actually pseudo-Goldstone modes, and their degenerated mass is exactly the magnitude of the color chemical potential, which is introduced to guarantee the color neutrality at moderate baryon density.5 pages, 2 figureHigh Energy Physics - PhenomenologyNuclear Theorytext