Single Particle Energies And Nuclear G Factors

Adding one neutron to doubly magic Sn-100, we can associate the low lying states in(101)Sn with single particle states. Thus, the J = (5+)(2) and J = (7+)(2) states are identified as the d(5/2) and g(7/2) single particle states, respectively. In Sn-101, 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.