We studied the influence of dispersive self-energy effects, three-body forces, and polarization contributions to the interaction kernel on the ${}^1{S}_0$ proton pairing in neutron star matter. We found that a strong suppression of the gap by self-energy effects and three-body forces is at low density compensated by the attractive polarization interaction, shifting the domain of pairing to below ${\rho }_B\approx 0.3{\mathrm{fm}}^{-3}$.

• Received 4 July 2005

DOI:https://doi.org/10.1103/PhysRevC.75.025802