Systematic study of proton-neutron pairing correlations in the nuclear shell model

Details Systematic study of proton-neutron pairing correlations in the nuclear shell model Systematic study of proton-neutron pairing correlations in the nuclear shell model

2011-07-15

arxiv.org/abs/1107.3155v2

Physics

Nuclear Physics

Nuclear Theory

12 pages, 16 figures

Scientific paper

A shell-model study of proton-neutron pairing in $2p1f$ 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, $^{45}$Ti, $^{46}$Ti, $^{46}$V and $^{48}$Cr to assess how proton-neutron pair correlations emerge under different scenarios. We also study how the presence of a one-body spin-obit interaction affects the contribution of the various pairing modes.

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