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One- and two-phonon wobbling excitations in triaxial Lu-165

Schonwasser, G; Hubel, H; Hagemann, GB; Bednarczyk, P; Benzoni, G; Bracco, A; Bringel, P; Chapman, R; Curien, D and Domscheit, J, et al. (2003) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 552(1-2). p.9-16
Abstract
High-spin states in Lu-165 have been investigated by in-beam gamma-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers n(w) = 0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes Lu-163 and Lu-167, firmly establish this mode of excitation in the A = 165 mass region. The... (More)
High-spin states in Lu-165 have been investigated by in-beam gamma-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers n(w) = 0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes Lu-163 and Lu-167, firmly establish this mode of excitation in the A = 165 mass region. The observation of wobbling is a unique signature of stable nuclear triaxiality. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
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publication status
published
subject
keywords
nuclear energy levels, wobbling excitation, triaxial superdeformation
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
552
issue
1-2
pages
9 - 16
publisher
Elsevier
external identifiers
  • wos:000180408500002
  • scopus:0037448338
ISSN
0370-2693
DOI
language
English
LU publication?
yes
id
91aabb0b-ffa2-4821-a8f3-3aaa700ad04b (old id 319689)
date added to LUP
2007-09-21 11:29:09
date last changed
2018-06-24 04:37:05
@article{91aabb0b-ffa2-4821-a8f3-3aaa700ad04b,
  abstract     = {High-spin states in Lu-165 have been investigated by in-beam gamma-ray coincidence spectroscopy using the EUROBALL spectrometer array. Two new excited rotational bands have been discovered with features similar to a previously known triaxial superdeformed band in that nucleus. Comparison of the decay pattern of these bands, in particular the unusually large E2 transition strength from the first excited to the yrast superdeformed band, to theoretical calculations shows that they belong to a family of wobbling excitations with phonon numbers n(w) = 0, 1 and 2. These results, together with evidence for nuclear wobbling in the neighbouring isotopes Lu-163 and Lu-167, firmly establish this mode of excitation in the A = 165 mass region. The observation of wobbling is a unique signature of stable nuclear triaxiality. (C) 2002 Elsevier Science B.V. All rights reserved.},
  author       = {Schonwasser, G and Hubel, H and Hagemann, GB and Bednarczyk, P and Benzoni, G and Bracco, A and Bringel, P and Chapman, R and Curien, D and Domscheit, J and Herskind, B and Jensen, DR and Leoni, S and Lo Bianco, G and Ma, WC and Maj, A and Neusser, A and Odegard, SW and Petrache, CM and Rossach, D and Ryde, Hans and Spohr, KH and Singh, AK},
  issn         = {0370-2693},
  keyword      = {nuclear energy levels,wobbling excitation,triaxial superdeformation},
  language     = {eng},
  number       = {1-2},
  pages        = {9--16},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {One- and two-phonon wobbling excitations in triaxial Lu-165},
  url          = {http://dx.doi.org/},
  volume       = {552},
  year         = {2003},
}