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Prolate structures in 189Po and 185Pb

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Abstract.

The 3/2- isomer in 185Pb and states above it have been populated in the α-decay of 189Po. The observed α-decay strengths to and the electromagnetic decay properties of the excited states in 185Pb have been combined with Potential Energy Surface and Particle-Plus-Rotor calculations to propose configuration assignments. It is suggested that the α-decaying isomer of 189Po is of prolate origin and that the prolate configuration becomes very low in energy in 185Pb.

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Authors and Affiliations

  1. Instituut voor Kern- en Stralingsfysica, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium

    K. Van de Vel, M. Huyse, D. Karlgren & P. Van Duppen

  2. Oliver Lodge Laboratory, University of Liverpool, L69 7ZE, Liverpool, UK

    A. N. Andreyev, H. J. Boardman, C. Moore & R. D. Page

  3. Gesellschaft für Schwerionenforschung, Planckstrasse 1, 64291, Darmstadt, Germany

    D. Ackermann, P. Cagarda, J. Gerl, F. P. Heßberger, S. Hofmann, I. Kojouharov, B. Lommel, G. Münzenberg & S. Saro

  4. Department of Physics, Royal Institute of Technology, 104 05, Stockholm, Sweden

    D. Karlgren & R. Wyss

  5. Department of Physics, University of Jyväskylä, 40014, Jyväskylä, Finland

    M. Leino

  6. Flemish Institute for Technological Research (VITO), Boeretang 200, 2400, Mol, Belgium

    K. Van de Vel

  7. TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C., Canada

    A. N. Andreyev

  8. Johannes Gutenberg Universität Mainz, 55099, Mainz, Germany

    D. Ackermann & G. Münzenberg

  9. Physikalisches Institut, J.W. Goethe-Universität, 60054, Frankfurt, Germany

    S. Hofmann

Authors
  1. K. Van de Vel
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  2. A. N. Andreyev
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  3. D. Ackermann
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  4. H. J. Boardman
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  5. P. Cagarda
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  6. J. Gerl
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  7. F. P. Heßberger
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  8. S. Hofmann
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  9. M. Huyse
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  10. D. Karlgren
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  11. I. Kojouharov
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  12. M. Leino
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  13. B. Lommel
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  14. G. Münzenberg
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  15. C. Moore
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  16. R. D. Page
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  17. S. Saro
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  18. P. Van Duppen
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  19. R. Wyss
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Corresponding author

Correspondence to K. Van de Vel.

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J. Äystö

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Van de Vel, K., Andreyev, A.N., Ackermann, D. et al. Prolate structures in 189Po and 185Pb. Eur. Phys. J. A 24, 57–62 (2005). https://doi.org/10.1140/epja/i2004-10124-7

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  • DOI: https://doi.org/10.1140/epja/i2004-10124-7

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