2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196805We study the deconfinement transition of hadronic matter into quark matter in neutron star conditions in the light of color superconductivity. Deconfinement is considered to be a first order phase transition that conserves color and flavor. It gives a short-lived {($τ\sim τ_{weak}$)} transitory colorless-quark-phase that is {\it not} in $β$-equilibrium. We deduce the equations governing deconfinement when quark pairing is allowed and find the regions of the parameter space (pairing gap $Δ$ versus bag constant $B$) where deconfinement is possible inside cold neutron stars. We show that for a wide region of ($B,Δ$) a pairing pattern is reachable within a strong interaction timescale, and the resulting ``2SC-like'' phase is preferred energetically to the unpaired phase. We also show that although $β$-stable hybrid star configurations are known to be possible for a wide region of the ($B,Δ$)-space, many of these configurations could not form in practice because deconfinement is forbidden, i.e. the here studied non-$β$-stable \emph{intermediate} state cannot be reached.Version to appear in Phys. Rev. D (10 pages, 6 figures)AstrophysicsHigh Energy Physics - PhenomenologyNuclear Theorytext