β decay of Zn81 and migrations of states observed near the N=50 closed shell
The β decay of the N=51 nucleus Zn81 was studied by means of β-γ spectroscopy and from isotopically pure beams produced at the Holifield Radioactive Ion Beam Facility (HRIBF). We observe several competing β transitions populating Ga81 that are interpreted as allowed Gamow-Teller decays to positive parity, core excited states, and first-forbidden decays to negative parity states. The measured β-decay pattern suggests an assignment of Iπ=5/2⊃+ for the Zn81 ground state. The systematics of core excited states in N=50 isotones indicate a strengthening of the N=40 subshell gap near Ni78. © 2010 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
Padgett, S., Madurga, M., Grzywacz, R., Darby, I., Liddick, S., Paulauskas, S., Cartegni, L., Bingham, C., Gross, C., Rykaczewski, K., Shapira, D., Stracener, D., Mendez, A., Winger, J., Ilyushkin, S., Korgul, A., Królas, W., Zganjar, E., Mazzocchi, C., Liu, S., Hamilton, J., Batchelder, J., & Rajabali, M. (2010). β decay of Zn81 and migrations of states observed near the N=50 closed shell. Physical Review C - Nuclear Physics, 82 (6) https://doi.org/10.1103/PhysRevC.82.064314