Single particle energies and nuclear g factors

Adding one neutron to doubly magic 100Sn, we can associate the low lying states in101Sn with single particle states. Thus, the J = 5 2+ and J = 7 2+ states are identified as the d5/2 and g7/2 single particle states, respectively. In 101Sn, these two low lying states are separated by an energy of 0.172MeV. Currently, there is a dispute as to the ordering of these states. We examine how the two scenarios, selecting J = 5 2+ as the ground state or J = 7 2+ as the ground state, affect spectra and nuclear g factors of higher mass Sn isotopes in a variety of shell model situations. Significantly, this includes examining the complex interplay of the choice of single particle state splitting, effective interactions, and effective g-factors in nuclear shell model calculations. Of particular importance is how the trends in the calculated results for g factors diverge from recent experimental measurements for the higher mass isotopes of Sn.