Proton-neutron pairing correlations in the nuclear shell model

Abstract

A shell-model study of proton-neutron pairing in f - p shell nuclei using a parametrized hamiltonian that includes deformation and spin-orbit effects as well as isoscalar and isovector pairing is reported. By working in a shell-model framework we are able to assess the role of the various modes of proton-neutron pairing in the presence of nuclear deformation without violating symmetries. Results are presented for $^{44}$Ti, $^{46}$Ti and $^{48}$Cr.Comment: Presented at "XXXIII Symposium on Nuclear Physics" 05 Jan 2010 - 08 Jan 2010; Hacienda Cocoyoc, Morelos, Mexic