Collective excitations in the transitional nuclei 163Re and 165Re
Davis-Merry, T. R., Joss, D. T., Page, R. D., Simpson, J., Paul, E. S., Ali, F. A., Bianco, L., Carroll, R. J., Cederwall, B., Darby, I. G., Drummond, M. C., Eeckhaudt, S., Ertürk, S., Gómez-Hornillos, M. B., Grahn, T., Greenlees, P., Hadinia, B., Jakobsson, U., Jones, P., . . . Uusitalo, J. (2015). Collective excitations in the transitional nuclei 163Re and 165Re. Physical Review C, 91(3), Article 034319. https://doi.org/10.1103/PhysRevC.91.034319
Published inPhysical Review C
© 2015 American Physical Society. Published in this repository with the kind permission of the publisher.
Excited states in the neutron-deficient nuclei 163 75 Re88 and 165 75 Re90 were populated in the 106Cd(60Ni, p2nγ ) and 92Mo(78Kr, 3p2nγ ) fusion-evaporation reactions at bombarding energies of 270 and 380 MeV, respectively. γ rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated in-flight by the RITU gas-filled recoil separator and implanted in the GREAT spectrometer. The energy level schemes for 163Re and 165Re were identified using recoil-decay correlation techniques. At low spin, the yrast bands of these isotopes consist of signature partner bands based on a single πh11/2 quasiproton configuration. The bands display large energy splitting consistent with the soft triaxial shape typical of transitional nuclei above N = 82. The configurations of the excited states are proposed within the framework of the cranked shell model.
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