First identification of rotational band structures in Re-166(75)91
Li, H. J., Doncel, M., Patial, M., Cederwall, B., Bäck, T., Jakobsson, U., Auranen, K., Bönig, S., Drummond, M., Grahn, T., Greenlees, P., Herzan, A., Joss, D. T., Julin, R., Juutinen, S., Konki, J., Kröll, T., Leino, M., McPeake, C., . . . Xiao, Z. G. (2015). First identification of rotational band structures in Re-166(75)91. Physical Review C, 92(1), Article 014310. https://doi.org/10.1103/PhysRevC.92.014310
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Physical Review CAuthors
Bäck, T. |
Date
2015Copyright
© 2015 American Physical Society. Published in this repository with the kind permission of the publisher.
Excited states in the odd-odd, highly neutron-deficient nucleus 166Re have been investigated via the 92Mo(78Kr,
3p1n)
166Re reaction. Prompt γ rays were detected by the JUROGAM II γ -ray spectrometer, and the recoiling
fusion-evaporation products were separated by the recoil ion transport unit (RITU) gas-filled recoil separator
and implanted into the Gamma Recoil Electron Alpha Tagging spectrometer located at the RITU focal plane.
The tagging and coincidence techniques were applied to identify the γ -ray transitions in 166Re, revealing two
collective, strongly coupled rotational structures, for the first time. The more strongly populated band structure is
assigned to the πh11/2[514]9/2− ⊗ νi13/2[660]1/2+ Nilsson configuration, while the weaker structure is assigned
to be built on a two-quasiparticle state of mixed πh11/2[514]9/2− ⊗ ν[h9/2f7/2]3/2− character. The configuration
assignments are based on the electromagnetic characteristics and rotational properties, in comparison with
predictions from total Routhian surface and particle-rotor model calculations.
...
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American Physical SocietyISSN Search the Publication Forum
0556-2813Keywords
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