Superdeformation in 147,148Eu: Identical bands and π61π63 crossings

D. S. Haslip, N. Kintz, S. Flibotte, R. A. E. Austin, G. de France, M. Devlin, Ch. Finck, A. Galindo-Uribarri, G. Gervais, D. R. LaFosse, T. J. Lampman, I. Y. Lee, F. Lerma, A. O. Macchiavelli, R. W. MacLeod, S. M. Mullins, J. M. Nieminen, T. Rodinger, D. G. Sarantites, O. Stezowski, C. E. Svensson, J. P. Vivien, J. C. Waddington, D. Ward, and J. N. Wilson
Phys. Rev. C 57, 2196 – Published 1 May 1998
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Abstract

Eight superdeformed bands have been observed in the nuclei 147,148Eu. Some of these are identical to bands in the Z+1 nuclei 148,149Gd, and are interpreted as having the same single-particle configurations with the exception of a hole in one of the [301]1/2 proton orbitals. Some of the bands in 147Eu exhibit either upbends or downbends in their moments of inertia which are related to the crossing of π61 and π63 proton intruder configurations. These results constitute the first evidence of this crossing.

  • Received 6 January 1998

DOI:https://doi.org/10.1103/PhysRevC.57.2196

©1998 American Physical Society

Authors & Affiliations

D. S. Haslip1, N. Kintz2, S. Flibotte1, R. A. E. Austin1, G. de France3, M. Devlin4, Ch. Finck2, A. Galindo-Uribarri5, G. Gervais1, D. R. LaFosse4, T. J. Lampman1, I. Y. Lee6, F. Lerma4, A. O. Macchiavelli6, R. W. MacLeod6, S. M. Mullins7, J. M. Nieminen1, T. Rodinger1, D. G. Sarantites4, O. Stezowski2, C. E. Svensson1, J. P. Vivien2, J. C. Waddington1, D. Ward6, and J. N. Wilson1

  • 1Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
  • 2Institut de Recherches Subatomiques, F-67037 Strasbourg Cedex 2, France
  • 3GANIL, B.P. 5027, F-14076 Caen Cedex 5, France
  • 4Chemistry Department, Washington University, St. Louis, Missouri 63130
  • 5Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6371
  • 6Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720
  • 7Department of Nuclear Physics, RSPhysSE, ANU, Canberra, ACT 0200, Australia

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Vol. 57, Iss. 5 — May 1998

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