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Observation of excited proton and neutron configurations in the superdeformed Gd149 nucleus

B. Haas, D. Ward, H. R. Andrews, G. C. Ball, T. E. Drake, S. Flibotte, A. Galindo-Uribarri, V. P. Janzen, J. K. Johansson, H. Kluge, J. Kuehner, A. Omar, S. Pilotte, D. Prevost, J. Rodriguez, D. C. Radford, P. Taras, J. P. Vivien, J. C. Waddington, and S. Aberg
Phys. Rev. C 42, R1817(R) – Published 1 November 1990
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Abstract

Two excited superdeformed bands in Gd149 have been observed in γ-ray spectroscopy. Based on the behavior of the dynamical moments of inertia, we assign one band to a neutron excitation and the other to a proton excitation. The proton-excited-band γ-ray energies are nearly identical to those already known in Tb150. In addition, two new members of the Gd149 yrast cascade have been observed, extending the band to spin 135/2ħ. The results are discussed in terms of high-N intruder orbitals in the cranked-shell model.

  • Received 18 April 1990

DOI:https://doi.org/10.1103/PhysRevC.42.R1817

©1990 American Physical Society

Authors & Affiliations

B. Haas, D. Ward, H. R. Andrews, G. C. Ball, T. E. Drake, S. Flibotte, A. Galindo-Uribarri, V. P. Janzen, J. K. Johansson, H. Kluge, J. Kuehner, A. Omar, S. Pilotte, D. Prevost, J. Rodriguez, D. C. Radford, P. Taras, J. P. Vivien, J. C. Waddington, and S. Aberg

  • Centre de Recherches Nucleaires, Strasbourg, France
  • Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, Canada K0J 1J0
  • Department of Physics, University of Toronto, Toronto, Ontario, Canada M5S 1A7
  • Laboratoire de Physique Nucleaire, Université de Montreál, Montreál, Québec, Canada H3C 3A7
  • Department of Physics, McMaster University, Hamilton, Ontario, Canada L8S 4M1
  • Hahn-Meitner-Institut, Berlin, West Germany
  • Department of Physics Astronomy, University of Tennessee, Knoxville, Tennessee 37996
  • Department of Mathematical Physics, Lund Institute of Technology, Lund, Sweden.

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Vol. 42, Iss. 5 — November 1990

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