Lifetimes of triaxial superdeformed states in Lu-163 and Lu-164

G Schonwasser, H Hubel, GB Hagemann, J Domscheit, A Gorgen, B Herskind, G Sletten, JN Wilson, DR Napoli, C Rossi-Alvarez, D Bazzacco, Ragnar Bengtsson, Hans Ryde, PO Tjom, SW Odegard

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22 Citations (SciVal)

Abstract

Lifetimes of states in the yrast superdeformed bands of Lu-163 and Lu-164 were determined in a Doppler-shift attenuation-method experiment. From fractional Doppler shifts and line shapes, average transition quadrupole moments, Q(t) = 8.2(-0.6)(+1.0) b and 7.1(-0.6)(+0.5) 1), were deduced for one of the bands in Lu-163 OX -0.6 and Lu-164, respectively. These values are much larger than the quadrupole moment of the normal-deformed yrast band in Yb-163, Q(t) = 4.9(-0.4)(+1.34) b, that was also determined in this experiment. Comparison to cranking calculations indicates that both superdeformed bands correspond to a local potential energy minimum with a pronounced triaxiality, gamma similar to 20degrees.
Original languageEnglish
Pages (from-to)291-296
JournalEuropean Physical Journal A. Hadrons and Nuclei
Volume13
Issue number3
DOIs
Publication statusPublished - 2002

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Nuclear Physics (Faculty of Science) (011013004), Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

  • Physical Sciences
  • Subatomic Physics

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