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Prolate structures in 189Po and 185Pb |
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| Authors: | K. Van de Vel A. N. Andreyev D. Ackermann H. J. Boardman P. Cagarda J. Gerl F. P. Heßberger S. Hofmann M. Huyse D. Karlgren I. Kojouharov M. Leino B. Lommel G. Münzenberg C. Moore R. D. Page S. Saro P. Van Duppen R. Wyss |
| Affiliation: | (1) Instituut voor Kern- en Stralingsfysica, University of Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium;(2) Oliver Lodge Laboratory, University of Liverpool, L69 7ZE Liverpool, UK;(3) Gesellschaft für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany;(4) Department of Physics, Royal Institute of Technology, 104 05 Stockholm, Sweden;(5) Department of Physics, University of Jyväskylä, 40014 Jyväskylä, Finland;(6) Flemish Institute for Technological Research (VITO), Boeretang 200, 2400 Mol, Belgium;(7) TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C., Canada;(8) Johannes Gutenberg Universität Mainz, 55099 Mainz, Germany;(9) Physikalisches Institut, J.W. Goethe-Universität, 60054 Frankfurt, Germany |
| Abstract: | The 3/2- isomer in 185Pb and states above it have been populated in the  -decay of 189Po. The observed -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 -decaying isomer of 189Po is of prolate origin and that the prolate configuration becomes very low in energy in 185Pb. |
| Keywords: | 23.20.Lv |
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