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Quadrupole moments of collective structures up to spin similar to 65(h)over-bar in Er-157 and Er-158: A challenge for understanding triaxiality in nuclei

Wang, X.; Riley, M. A.; Simpson, J.; Paul, E. S.; Ollier, J.; Janssens, R. V. F.; Ayangeakaa, A. D.; Boston, H. C.; Carpenter, M. P. and Chiara, C. J., et al. (2011) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 702(2-3). p.127-130
Abstract
The transition quadrupole moments. Q(t), of four weakly populated collective bands up to spin similar to 65h in Er-157,Er-158 have been measured to be similar to II eb demonstrating that these sequences are associated with large deformations. However, the data are inconsistent with calculated values from cranked Nilsson-Strutinsky calculations that predict the lowest energy triaxial shape to be associated with rotation about the short principal axis. The data appear to favor either a stable triaxial shape rotating about the intermediate axis or, alternatively, a triaxial shape with larger deformation rotating about the short axis. These new results challenge the present understanding of triaxiality in nuclei. (C) 2011 Elsevier B.V. All... (More)
The transition quadrupole moments. Q(t), of four weakly populated collective bands up to spin similar to 65h in Er-157,Er-158 have been measured to be similar to II eb demonstrating that these sequences are associated with large deformations. However, the data are inconsistent with calculated values from cranked Nilsson-Strutinsky calculations that predict the lowest energy triaxial shape to be associated with rotation about the short principal axis. The data appear to favor either a stable triaxial shape rotating about the intermediate axis or, alternatively, a triaxial shape with larger deformation rotating about the short axis. These new results challenge the present understanding of triaxiality in nuclei. (C) 2011 Elsevier B.V. All rights reserved. (Less)
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keywords
Ultrahigh-spin collective structures, Transition quadrupole moments, Cranked Nilsson-Strutinsky calculations, Triaxial nuclear shape
in
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
702
issue
2-3
pages
127 - 130
publisher
Elsevier
external identifiers
  • wos:000293928600004
  • scopus:79960604203
ISSN
0370-2693
DOI
10.1016/j.physletb.2011.07.007
language
English
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yes
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b2d355d2-2c81-4fc3-b74b-11e09e5de4b8 (old id 2161802)
date added to LUP
2011-09-21 11:22:49
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2017-10-01 04:21:36
@article{b2d355d2-2c81-4fc3-b74b-11e09e5de4b8,
  abstract     = {The transition quadrupole moments. Q(t), of four weakly populated collective bands up to spin similar to 65h in Er-157,Er-158 have been measured to be similar to II eb demonstrating that these sequences are associated with large deformations. However, the data are inconsistent with calculated values from cranked Nilsson-Strutinsky calculations that predict the lowest energy triaxial shape to be associated with rotation about the short principal axis. The data appear to favor either a stable triaxial shape rotating about the intermediate axis or, alternatively, a triaxial shape with larger deformation rotating about the short axis. These new results challenge the present understanding of triaxiality in nuclei. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Wang, X. and Riley, M. A. and Simpson, J. and Paul, E. S. and Ollier, J. and Janssens, R. V. F. and Ayangeakaa, A. D. and Boston, H. C. and Carpenter, M. P. and Chiara, C. J. and Garg, U. and Hartley, D. J. and Judson, D. S. and Kondev, F. G. and Lauritsen, T. and Lumley, N. M. and Matta, J. and Nolan, P. J. and Petri, M. and Revill, J. P. and Riedinger, L. L. and Rigby, S. V. and Unsworth, C. and Zhu, S. and Ragnarsson, Ingemar},
  issn         = {0370-2693},
  keyword      = {Ultrahigh-spin collective structures,Transition quadrupole moments,Cranked Nilsson-Strutinsky calculations,Triaxial nuclear shape},
  language     = {eng},
  number       = {2-3},
  pages        = {127--130},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Quadrupole moments of collective structures up to spin similar to 65(h)over-bar in Er-157 and Er-158: A challenge for understanding triaxiality in nuclei},
  url          = {http://dx.doi.org/10.1016/j.physletb.2011.07.007},
  volume       = {702},
  year         = {2011},
}