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Collectivity in neutron-deficient Pb and Po nuclei

Grahn, T.; Dewald, A; Moller, O.; Julin, Rauno Juhani; Beausang, C.; Christen, S; Darby, I G; Eeckhaudt, S.; Greenlees, P T; Gorgen, A; Helariutta, K; Jolie, J; Kettunen, H; Kroll, T; Krucken, R.; Jones, P; Juutinen, S; Le Coz, Y; Leino, M; Leppanen, A.P.; Meierbeck, P.; Melon, B; Meyer, D A; Nieminen, Paivi; Nyman, M.; Page, R.D.; Pakarinen, J.; Petkov, P; Rahkila, P; Saha, B.; Sandzelius, M.; Saren, J.; Scholey, C; Uusitalo, J


Lifetimes of low-lying yrast states in186Pb and194Po 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 in188Pb up to the 8+ state were carried out using the recoil gating method. The deformation parameters β2 = 0.29(5) and β2 for the prolate (186,188Pb) and the oblate (194Po) bands, respectively, have been extracted from the measured lifetimes.

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: European Physical Journal - Special Topics
DOI: 10.1140/epjst/e2007-00282-8


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