Nuclear pairing in the T=0 channel reexamined

Abstract

Recent published data on the isoscalar gap in symmetric nuclear matter using the Paris force and the corresponding BHF single particle dispersion are corrected, leading to an extremely high proton-neutron gap of Δ∼8 MeV at p∼0.5p0. Arguments of whether this value can be reduced due to screening effects are discussed. A density dependent delta interaction with cutoff is adjusted so as to approximately reproduce the nuclear matter values with the Paris force.