https://doi.org/10.1140/epjst/e2007-00282-8
Collectivity in neutron-deficient Pb and Po nuclei
1
Department of Physics, University of Jyväskylä, PL 35, 40014 Jyväskylä, Finland
2
Department of Physics, Oliver Lodge Laboratory, University of Liverpool, L69 7, ZE Liverpool, UK
3
Institut für Kerphysik, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
4
Wright Nuclear Structure Laboratory, Yale University, New Haven, CT, 06520, USA
5
CEA Saclay DSM/DAPNIA/SPhN, 91191 Gif-sur-Yvette Cedex, France
6
Laboratory of Radiochemistry, Department of Chemistry, PL 55, 00014 University of Helsinki, 1000 Helsinki, Finland
7
Physik-Department E12, TU München, 85748 Garching, Germany
8
Institute for Nuclear Research and Nuclear Energy, 1000 Sofia, Bulgaria
Received:
31
January
2007
Published online:
8
December
2007
Lifetimes of low-lying yrast states in 186Pb and
194Po have been determined by employing, for the first time, the recoil-decay tagging technique in recoil distance Doppler-shift lifetime measurements. In addition, lifetime measurements of prolate states in 188Pb up to the 8+ state were carried out using the recoil gating method. The deformation parameters 
and 
for the prolate (186,188Pb) and the oblate (194Po) bands,
respectively, have been extracted from the measured lifetimes.
PACS: 27.70+q – / 21.10.Tg – / 27.80.+w –
© EDP Sciences, Springer-Verlag, 2007
