The β decay of Cu75 [t1/2=1.222(8)s] to levels in Zn75 was studied at the Holifield Radioactive Ion Beam Facility of Oak Ridge National Laboratory. The γγ and βγ data were collected at the Low-energy Radioactive Ion Beam Spectroscopy Station using the high-resolution isobar separator to obtain a purified Cu75 beam with a rate of over 2000 ions per second. The excited states in Zn75 have been identified for the first time. A total of 120 γ-ray transitions were placed in a level scheme containing 59 levels including two states above the neutron separation energy and a previously unknown 1/2- isomeric state at 127 keV. Spins and parities of several states were deduced and interpreted based on the observed β feeding and γ-decay pattern. © 2011 American Physical Society.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
Ilyushkin, S., Winger, J., Rykaczewski, K., Gross, C., Batchelder, J., Cartegni, L., Darby, I., Grzywacz, R., Hamilton, J., Korgul, A., Królas, W., Liddick, S., Mazzocchi, C., Mendez, T., Padgett, S., Rajabali, M., Shapira, D., Stracener, D., & Zganjar, E. (2011). β-decay studies of the transitional nucleus Cu75 and the structure of Zn75. Physical Review C - Nuclear Physics, 83 (1) https://doi.org/10.1103/PhysRevC.83.014322