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Structure changes in Er-160 from low to ultrahigh spin

Ollier, J.; Simpson, J.; Riley, M. A.; Paul, E. S.; Wang, X.; Aguilar, A.; Carpenter, M. P.; Darby, I. G.; Hartley, D. J. and Janssens, R. V. F., et al. (2011) In Physical Review C (Nuclear Physics) 83(4).
Abstract
A spectroscopic investigation of the gamma decays from excited states in Er-160 has been performed in order to study the changing structural properties exhibited from low spin up toward ultrahigh spin (I similar to 60 h). The nucleus Er-160 was populated by the reaction Cd-116(Ca-48,4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were studied using the Gammasphere spectrometer. New rotational structures and extensions to existing bands were observed, revealing a diverse range of quasiparticle configurations, which are discussed in terms of the cranked shell model. At spins around 50h there is evidence for oblate states close to the yrast line. Three rotational bands that have the characteristics of strongly deformed... (More)
A spectroscopic investigation of the gamma decays from excited states in Er-160 has been performed in order to study the changing structural properties exhibited from low spin up toward ultrahigh spin (I similar to 60 h). The nucleus Er-160 was populated by the reaction Cd-116(Ca-48,4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were studied using the Gammasphere spectrometer. New rotational structures and extensions to existing bands were observed, revealing a diverse range of quasiparticle configurations, which are discussed in terms of the cranked shell model. At spins around 50h there is evidence for oblate states close to the yrast line. Three rotational bands that have the characteristics of strongly deformed triaxial structures are observed, marking a return to collectivity at even higher spin. The high-spin data are interpreted within the framework of cranked Nilsson-Strutinsky calculations. (Less)
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publication status
published
subject
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Physical Review C (Nuclear Physics)
volume
83
issue
4
publisher
American Physical Society
external identifiers
  • wos:000289518300003
  • scopus:79960931247
ISSN
0556-2813
DOI
10.1103/PhysRevC.83.044309
language
English
LU publication?
yes
id
c9638f0e-4b15-41a5-905e-8017b7c5d91a (old id 1965270)
date added to LUP
2011-05-23 10:49:24
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2017-01-01 05:24:13
@article{c9638f0e-4b15-41a5-905e-8017b7c5d91a,
  abstract     = {A spectroscopic investigation of the gamma decays from excited states in Er-160 has been performed in order to study the changing structural properties exhibited from low spin up toward ultrahigh spin (I similar to 60 h). The nucleus Er-160 was populated by the reaction Cd-116(Ca-48,4n gamma) at a beam energy of 215 MeV, and resulting gamma decays were studied using the Gammasphere spectrometer. New rotational structures and extensions to existing bands were observed, revealing a diverse range of quasiparticle configurations, which are discussed in terms of the cranked shell model. At spins around 50h there is evidence for oblate states close to the yrast line. Three rotational bands that have the characteristics of strongly deformed triaxial structures are observed, marking a return to collectivity at even higher spin. The high-spin data are interpreted within the framework of cranked Nilsson-Strutinsky calculations.},
  articleno    = {044309},
  author       = {Ollier, J. and Simpson, J. and Riley, M. A. and Paul, E. S. and Wang, X. and Aguilar, A. and Carpenter, M. P. and Darby, I. G. and Hartley, D. J. and Janssens, R. V. F. and Kondev, F. G. and Lauritsen, T. and Nolan, P. J. and Petri, M. and Rees, J. M. and Rigby, S. V. and Teal, C. and Thomson, J. and Unsworth, C. and Zhu, S. and Kardan, A. and Ragnarsson, Ingemar},
  issn         = {0556-2813},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Structure changes in Er-160 from low to ultrahigh spin},
  url          = {http://dx.doi.org/10.1103/PhysRevC.83.044309},
  volume       = {83},
  year         = {2011},
}