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Collectivity and configuration mixing in Pb186,188 and Po194
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2006 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 97, no 6Article in journal (Refereed) Published
Abstract [en]

Lifetimes of prolate intruder states in Pb186 and oblate intruder states in Po194 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 Pb188 up to the 8+ state were carried out using the recoil-gating method. The B(E2) values have been deduced from which deformation parameters |β2|=0.29(5) and |β2|=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.

Place, publisher, year, edition, pages
2006. Vol. 97, no 6
Keyword [en]
Deformation, Disintegration, Doppler effect, Lead, Parameter estimation, Polonium, Configuration mixing, Doppler-shift lifetime, Lifetime measurements, Prolate intruder states, Band structure
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-156318DOI: 10.1103/PhysRevLett.97.062501ISI: 000239690900016ScopusID: 2-s2.0-33746883135OAI: diva2:766886

QC 20141128

Available from: 2014-11-28 Created: 2014-11-26 Last updated: 2015-10-14Bibliographically approved

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