Repulsive nonlocal potential models for the deuteron

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Abstract
Nonlocal potentials that give the same neutron-proton 3S1-3D1 phase parameters as the Reid hard-core potential are considered. It is shown that the deuteron quadrupole moment of 0.2770 fm2 for the Reid model can be increased to the experimental value of 0.2860 fm2 if the interaction has a repulsive nonlocal component. This nonlocal repulsion and that already found for the 1S0 p-p state are shown to be consistent with current models for the structure of the nucleon.