title: Collectivity and configuration mixing in 186,188Pb and 194Po.
abstract: Lifetimes of prolate intruder states in 186Pb and oblate intruder states in 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 B(E2) values have been deduced from which deformation parameters |beta2|=0.29(5) and |beta2|=0.17(3) for the prolate and the oblate bands, respectively, have been extracted. The results also shed new light on the mixing between different shapes.
authors.affiliation: Department of Physics, University of Jyväskylä, P. O. Box 35, FI-40014 Jyväskylä, Finland.
authors.forename: T
authors.initials: T
authors.lastname: Grahn
authors.forename: A
authors.initials: A
authors.lastname: Dewald
authors.forename: O
authors.initials: O
authors.lastname: Möller
authors.forename: R
authors.initials: R
authors.lastname: Julin
authors.forename: C W
authors.initials: CW
authors.lastname: Beausang
authors.forename: S
authors.initials: S
authors.lastname: Christen
authors.forename: I G
authors.initials: IG
authors.lastname: Darby
authors.forename: S
authors.initials: S
authors.lastname: Eeckhaudt
authors.forename: P T
authors.initials: PT
authors.lastname: Greenlees
authors.forename: A
authors.initials: A
authors.lastname: Görgen
authors.forename: K
authors.initials: K
authors.lastname: Helariutta
authors.forename: J
authors.initials: J
authors.lastname: Jolie
authors.forename: P
authors.initials: P
authors.lastname: Jones
authors.forename: S
authors.initials: S
authors.lastname: Juutinen
authors.forename: H
authors.initials: H
authors.lastname: Kettunen
authors.forename: T
authors.initials: T
authors.lastname: Kröll
authors.forename: R
authors.initials: R
authors.lastname: Krücken
authors.forename: Y
authors.initials: Y
authors.lastname: Le Coz
authors.forename: M
authors.initials: M
authors.lastname: Leino
authors.forename: A-P
authors.initials: AP
authors.lastname: Leppänen
authors.forename: P
authors.initials: P
authors.lastname: Maierbeck
authors.forename: D A
authors.initials: DA
authors.lastname: Meyer
authors.forename: B
authors.initials: B
authors.lastname: Melon
authors.forename: P
authors.initials: P
authors.lastname: Nieminen
authors.forename: M
authors.initials: M
authors.lastname: Nyman
authors.forename: R D
authors.initials: RD
authors.lastname: Page
authors.forename: J
authors.initials: J
authors.lastname: Pakarinen
authors.forename: P
authors.initials: P
authors.lastname: Petkov
authors.forename: P
authors.initials: P
authors.lastname: Rahkila
authors.forename: B
authors.initials: B
authors.lastname: Saha
authors.forename: M
authors.initials: M
authors.lastname: Sandzelius
authors.forename: J
authors.initials: J
authors.lastname: Sarén
authors.forename: C
authors.initials: C
authors.lastname: Scholey
authors.forename: J
authors.initials: J
authors.lastname: Uusitalo