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Highly Deformed Bands in Hf-175

Scholes, D T, Cullen, D M, Kondev, F G, Janssens, R V, Carpenter, M P, Hartley, D J, Djongolov, M K, Sletten, G, Hagemann, G, Wheldon, C, Walker, P M, Abu Saleem, K, Ahmad, I, Balabanski, D L, Chowdhury, P, Danchev, M, Dracoulis, G D, El-Masri, H M, Goon, J, Heinz, A, Kaye, R A, Khoo, T L, Lauritsen, T, Lister, C J, Moore, E F, Riedinger, L L, Riley, M A, Seweryniak, D, Shestakova, I, Wiedenhover, I, Zeidan, O and Zhang, J Y (2004) Highly Deformed Bands in Hf-175 Physical Review C, 70 (5). ISSN 0556-2813

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Abstract

Two high-spin regularly spaced rotational bands with large dynamical moments of inertia have been identified in Hf-175 with the Gammasphere spectrometer. These new bands are very similar to the previously identified triaxial superdeformed bands in the hafnium nuclei. However, the new bands in Hf-175 have been linked into the known level scheme and thereby provide the first firm spin assignments for these structures in this region. In order to understand the new bands, theoretical calculations have been performed based on the ULTIMATE CRANKER code. The new bands in Hf-175 are deduced to be built upon highly deformed structures. No experimental evidence for triaxiality was established and this work suggests that the structure of the so-called "triaxial" superdeformed bands in the Hf nuclei may be quite different from those identified in the lighter mass Lu nuclei. Since the two highly deformed bands in Hf-175 are associated with different deformations, this work also identifies the role of the intruder orbits in polarizing the nuclear shape.

Item Type: Article
Additional Information: Published in <i>Physical Review C,</i> Vol. 70, Iss. 5. Copyright 2004 American Physical Society. Click <a href=http://prc.aps.org/>here</a> to access the journal's website.
Divisions: Faculty of Engineering and Physical Sciences > Physics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:06
Last Modified: 23 Sep 2013 18:26
URI: http://epubs.surrey.ac.uk/id/eprint/182

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