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Phys. Rev. C 65, 061302(R) (2002) [5 pages]

Rotational bands with terminating properties in 59Ni

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C.-H. Yu1, C. Baktash1, J. A. Cameron2, M. Devlin3,*, J. Eberth4, A. Galindo-Uribarri1, D. S. Haslip2,†, D. R. LaFosse3,‡, T. J. Lampman2, I.-Y. Lee5, F. Lerma3, A. O. Macchiavelli5, S. D. Paul1,6, D. C. Radford1, I. Ragnarsson7, D. Rudolph7, D. G. Sarantites3, C. E. Svensson2,§, J. C. Waddington2, J. C. Wells8, and J. N. Wilson2,**
1Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
2Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
3Chemistry Department, Washington University, St. Louis, Missouri 63130
4Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
5Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
6Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee 37831
7Department of Physics, Lund University, S-22100 Lund, Sweden
8Department of Physics, Tennessee Technological University, Cookeville, Tennessee 38505

Received 4 March 2002; published 31 May 2002

Highly-deformed rotational bands were established in 59Ni using the 40Ca(29Si,2p2α)59Ni reaction. Lifetime measurements indicate that transition quadrupole moments of two of these bands decrease as they smoothly approach their maximum-spin states. The configurations of these bands as well as their band-terminating features are discussed based on configuration-dependent cranked Nilsson-Strutinsky calculations. These calculations indicate that, unlike similar bands observed previously in the region, the two bands in 59Ni maintain significant collectivity at their I=Imax states.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.061302
DOI:
10.1103/PhysRevC.65.061302
PACS:
21.10.Re, 21.10.Hw, 23.20.Lv, 27.50.+e

*Current address: LANSCE-3, MS H855, Los Alamos National Laboratory, Los Alamos, NM 87545.

†Current address: Defense Research Establishment Ottawa, Ottawa, Ontario, Canada K1A 0Z4.

‡Current address: Dept. of Physics, State University of New York at Stony Brook, Stony Brook, NY 11794.

§Current address: Department of Physics, University of Guelph, Guelph, Ontario, Canada N1G 2W1.

**Current address: Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark.

 
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