High-K states in the odd-odd nuclide 180Re

El-Masri, H.M., Walker, P.M., Dracoulis, G.D., Kibedi, T., Byrne, A.P., Bruce, Alison, Orce, J.N., Emmanouilidis, A., Cullen, D.M., Wheldon, C. and Xu, F.R. (2005) High-K states in the odd-odd nuclide 180Re Physical Review C, 72 (5). ISSN 0556-2813

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The structure of the deformed, doubly odd nuclide 180Re has been studied by gamma-ray and conversion-electron spectroscopy using the 174Yb(11B,5n) reaction with a pulsed 71 MeV beam of 11B ions. Several of the previously known intrinsic states have been given revised spin and parity assignments. Rotational bands are observed with Kpi=(4+),(5-),(7+),8+,9-,13+,14-,15-,16+,21-, and (22+). Among these, a four-quasiparticle t band is identified, which is already energetically favored at its bandhead compared to the corresponding two-quasiparticle band; and two six-quasiparticle bands are identified and associated with a tau=13 µs isomer. The observed structures, including g factors and alignments, are interpreted with the aid of Nilsson-plus-BCS calculations and configuration-constrained potential energy surface calculations. Reduced-hindrance values are obtained for K-forbidden transitions, illustrating the important role of the K quantum number for near-yrast isomers.

Item Type: Journal article
Additional Information: © 2005 The American Physical Society
Subjects: F000 Physical Sciences > F300 Physics
DOI (a stable link to the resource): 10.1103/PhysRevC.72.054306
Faculties: Faculty of Science and Engineering > School of Computing, Engineering and Mathematics > Engineering and Product Design Research > Nuclear Physics
Depositing User: editor engineering
Date Deposited: 19 Jan 2007
Last Modified: 13 Mar 2015 14:23
URI: http://eprints.brighton.ac.uk/id/eprint/171

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