Abstract
We calculate the contribution of the nucleon-nucleon tensor interaction to single-particle energies with finite-range -matrix potentials and with zero-range Skyrme potentials. The Skx Skyrme parameters including the zero-range tensor terms with strengths calibrated to the finite-range results are refitted to nuclear properties. The fit allows the zero-range proton-neutron tensor interaction as calibrated to the finite-range potential results which gives the observed change in the single-particle gap )-) going from to . However, the experimental dependence of the spin-orbit splittings in and is not well described when the tensor is added, owing to a change in the radial dependence of the total spin-orbit potential. The gap shift and a good fit to the dependence can be recovered when the like-particle tensor interaction is opposite in sign to that required for the matrix.
- Received 28 September 2006
DOI:https://doi.org/10.1103/PhysRevC.74.061303
©2006 American Physical Society