We calculate strong-coupling corrections to the P23 neutron-star-matter Ginzburg-Landau functional including spin-orbit and central forces. Based on a two-parameter approximation for the spin-orbit scattering amplitude and typical estimates for the neutron-matter Landau parameters we conclude that the most likely equilibrium phase of P23 neutron matter is described by a unitary order parameter. Better calculations of neutron-matter parameters, particularly the spin-orbit scattering amplitude, would allow a stronger conclusion.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)