Spin-orbit interactions in mean field theories Original Research Article

Spin-orbit interactions in a proton drip-line nucleus 72Kr are discussed in Skyrme Hartree-Fock and relativistic mean field theories by using various parameter sets. We find that the two models give different results not only in the spin-orbit splitting but also in the orbital angular momentum dependence of the single-particle energies. The Skyrme force SLy10 in the non-relativistic model and NL2, NL3 and NLSH interactions in the relativistic model give the energy of the single-particle View the MathML source state lower than that of the View the MathML source state, which agrees with the recently suggested level ordering in the analysis of the β-decay experiment of 71Kr.