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Yrast superdeformed band in 59Cu

C. Andreoiu, D. Rudolph, C. E. Svensson, A. V. Afanasjev, J. Dobaczewski, I. Ragnarsson, C. Baktash, J. Eberth, C. Fahlander, D. S. Haslip, D. R. LaFosse, S. D. Paul, D. G. Sarantites, H. G. Thomas, J. C. Waddington, W. Weintraub, J. N. Wilson, and C.-H. Yu
Phys. Rev. C 62, 051301(R) – Published 27 September 2000
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Abstract

High-spin states in 59Cu were populated using the fusion-evaporation reactions 28Si+40Ca at a beam energy of 125 MeV and 36Ar+28Si at a beam energy of 143 MeV. The Gammasphere array in conjunction with ancillary detector systems allowed for the identification of a superdeformed rotational band in 59Cu, which was firmly linked to low-spin yrast states. Using directional correlations of oriented states, a spin-parity assignment of Iπ=25/2+ to the band head was possible. The average quadrupole moment of the band is measured to be Qt=(2.24±0.40)eb. The characteristics of the band are compared to neighboring nuclei and predictions of different mean-field theories.

  • Received 23 May 2000

DOI:https://doi.org/10.1103/PhysRevC.62.051301

©2000 American Physical Society

Authors & Affiliations

C. Andreoiu1,2, D. Rudolph1, C. E. Svensson3, A. V. Afanasjev4,5, J. Dobaczewski6, I. Ragnarsson7, C. Baktash8, J. Eberth9, C. Fahlander1, D. S. Haslip10, D. R. LaFosse11,*, S. D. Paul8,†, D. G. Sarantites11, H. G. Thomas9, J. C. Waddington10, W. Weintraub12, J. N. Wilson10,‡, and C.-H. Yu8

  • 1Department of Physics, Lund University, S-22100 Lund, Sweden
  • 2NIPNE-“Horia Hulubei,” RO-76900, Bucharest, Romania
  • 3Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
  • 4Physik-Department, Technische Universität München, D-85747 Garching, Germany
  • 5Laboratory of Radiation Physics, Institute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Latvia
  • 6Institute of Theoretical Physics, Warsaw University, PL-00681 Warsaw, Poland
  • 7Department of Mathematical Physics, Lund Institute of Technology, S-22100 Lund, Sweden
  • 8Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
  • 9Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
  • 10Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada L8S 4M1
  • 11Chemistry Department, Washington University, St. Louis, Missouri 63130
  • 12Department of Physics, University of Tennessee, Knoxville, Tennessee 37996

  • *Present address: Department of Physics, State University of New York at Stony Brook, Stony Brook, NY 11794.
  • Present address: Tata Institute of Fundamental Research, Bombay 400 005, India.
  • Present address: Niels Bohr Institute, DK-2100 Copenhagen, Denmark.

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Vol. 62, Iss. 5 — November 2000

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