High-spin structure of neutron-rich Se, As, Ge, and Ga isotopes

Full-fledged shell-model calculations have been performed for neutron-rich Se, As, Ge, and Ga isotopes using a valence space made up from nucleons occupying the ${g}_{9/2},{p}_{1/2},{p}_{3/2}$, and ${f}_{5/2}$ orbitals. The calculated energies and electromagnetic transitions are compared with the experimental data which is available on these nuclei. Pair-truncated shell model calculations have also been carried out to investigate the structure of the high-spin states, with particular focus on the effect of the alignment of neutrons in the ${g}_{9/2}$ orbital.

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