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Quadrupole moments of wobbling excitations in Lu-163

Gorgen, A ; Clark, RM ; Cromaz, M ; Fallon, P ; Hagemann, GB ; Hubel, H ; Lee, IY ; Macchiavelli, AO ; Sletten, G and Ward, D , et al. (2004) In Physical Review C (Nuclear Physics) 69(3).
Abstract
Lifetimes of states in the triaxial strongly deformed bands of Lu-163 have been measured with the Gammasphere spectrometer using the Doppler-shift attenuation method. The bands have been interpreted as wobbling-phonon excitations from the characteristic electromagnetic properties of the transitions connecting the bands. Quadrupole moments are extracted for the zero-phonon yrast band and, for the first time, for the one-phonon wobbling band. The very similar results found for the two bands suggest a similar intrinsic structure and support the wobbling interpretation. While the in-band quadrupole moments for the bands show a decreasing trend towards higher spin, the ratio of the interband to the in-band transition strengths remains constant.... (More)
Lifetimes of states in the triaxial strongly deformed bands of Lu-163 have been measured with the Gammasphere spectrometer using the Doppler-shift attenuation method. The bands have been interpreted as wobbling-phonon excitations from the characteristic electromagnetic properties of the transitions connecting the bands. Quadrupole moments are extracted for the zero-phonon yrast band and, for the first time, for the one-phonon wobbling band. The very similar results found for the two bands suggest a similar intrinsic structure and support the wobbling interpretation. While the in-band quadrupole moments for the bands show a decreasing trend towards higher spin, the ratio of the interband to the in-band transition strengths remains constant. Both features can be understood by a small increase in triaxiality towards higher spin. Such a change in triaxiality is also found in cranking calculations, to which the experimental results are compared. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
69
issue
3
publisher
American Physical Society
external identifiers
  • wos:000220607200001
  • scopus:2442562640
ISSN
0556-2813
DOI
10.1103/PhysRevC.69.031301
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
id
88e25fdd-b060-4d39-ae4f-e0f04173db45 (old id 282050)
date added to LUP
2016-04-01 15:33:36
date last changed
2022-01-28 05:54:37
@article{88e25fdd-b060-4d39-ae4f-e0f04173db45,
  abstract     = {{Lifetimes of states in the triaxial strongly deformed bands of Lu-163 have been measured with the Gammasphere spectrometer using the Doppler-shift attenuation method. The bands have been interpreted as wobbling-phonon excitations from the characteristic electromagnetic properties of the transitions connecting the bands. Quadrupole moments are extracted for the zero-phonon yrast band and, for the first time, for the one-phonon wobbling band. The very similar results found for the two bands suggest a similar intrinsic structure and support the wobbling interpretation. While the in-band quadrupole moments for the bands show a decreasing trend towards higher spin, the ratio of the interband to the in-band transition strengths remains constant. Both features can be understood by a small increase in triaxiality towards higher spin. Such a change in triaxiality is also found in cranking calculations, to which the experimental results are compared.}},
  author       = {{Gorgen, A and Clark, RM and Cromaz, M and Fallon, P and Hagemann, GB and Hubel, H and Lee, IY and Macchiavelli, AO and Sletten, G and Ward, D and Bengtsson, Ragnar}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C (Nuclear Physics)}},
  title        = {{Quadrupole moments of wobbling excitations in Lu-163}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.69.031301}},
  doi          = {{10.1103/PhysRevC.69.031301}},
  volume       = {{69}},
  year         = {{2004}},
}