Prolate structures in189Po and185Pb.

Authors :: Van de Vel, K.
Andreyev, A.
Ackermann, D.
Boardman, H.J.
Cagarda, P.
Gerl, J.
Heßberger, F. P.
Hofmann, S.
Huyse, M.
Karlgren, D.
Kojouharov, I.
Leino, M.
Lommel, B.
Münzenberg, G.
Moore, C.
Page, R.
Saro, S.
Van Duppen, P.
Wyss, R.
Source :: European Physical Journal A -- Hadrons & Nuclei; Apr2005, Vol. 24 Issue 1, p57-62, 6p
Publication Year :: 2005
Abstract: The 3/2<superscript>-</superscript> isomer in<superscript>185</superscript>Pb and states above it have been populated in the a-decay of<superscript>189</superscript>Po. The observed a-decay strengths to and the electromagnetic decay properties of the excited states in<superscript>185</superscript>Pb have been combined with Potential Energy Surface and Particle-Plus-Rotor calculations to propose configuration assignments. It is suggested that the a-decaying isomer of<superscript>189</superscript>Po is of prolate origin and that the prolate configuration becomes very low in energy in<superscript>185</superscript>Pb. [ABSTRACT FROM AUTHOR]