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Phys. Rev. C 65, 034309 (2002) [10 pages]

Highly deformed band structure in 57Co

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W. Reviol, D. G. Sarantites, R. J. Charity, and V. Tomov
Chemistry Department, Washington University, St. Louis, Missouri 63130

J. Dobaczewski
Institute of Theoretical Physics, Warsaw University, Hoza 69, PL-00681 Warsaw, Poland

D. Rudolph
Department of Physics, Lund University, S-22100 Lund, Sweden

R. M. Clark, M. Cromaz, P. Fallon, and A. O. Macchiavelli
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720

M. P. Carpenter and D. Seweryniak
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

Received 7 September 2001; published 14 February 2002

Rotational bands have been found in 57Co using the 28Si(32S,3p) reaction at 130 MeV. The bands, extending the mass 60 region of large deformation down to Z=27, are signature-partner sequences. Their quadrupole moments are similar to those of bands in the neighboring nuclei. The features of the new bands are described by Skyrme Hartree-Fock calculations favoring a configuration assignment with one neutron and one proton excited in the respective 1g9/2 intruder orbital. An attempt to describe the magnetic (M1) properties of the signature-partner structure is also presented.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.034309
DOI:
10.1103/PhysRevC.65.034309
PACS:
27.60.+j, 23.20.Lv, 21.60.Cs
 
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