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High-spin yrast states in the gamma-soft nuclei Pr-135 and Ce-134

Paul, E. S.; Fox, C.; Boston, A. J.; Chantler, H. J.; Chiara, C. J.; Clark, R. M.; Cromaz, M.; Descovich, M.; Fallon, P. and Fossan, D. B., et al. (2011) In Physical Review C (Nuclear Physics) 84(4).
Abstract
High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin.
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publication status
published
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Physical Review C (Nuclear Physics)
volume
84
issue
4
publisher
American Physical Society
external identifiers
  • wos:000296518000005
  • scopus:80055053736
ISSN
0556-2813
DOI
10.1103/PhysRevC.84.047302
language
English
LU publication?
yes
id
1b22a7dd-8664-44c9-b95a-cf2872800ce5 (old id 2254124)
date added to LUP
2011-12-20 12:18:45
date last changed
2017-01-15 04:01:45
@article{1b22a7dd-8664-44c9-b95a-cf2872800ce5,
  abstract     = {High-spin states have been studied in Pr-135(59), populated through the Cd-116(Na-23,4n) reaction at 115 MeV, using the Gammasphere gamma-ray spectrometer. The negative-parity yrast band has been significantly extended to spin similar to 45 (h) over bar and excitation energy 21.5 MeV, showing evidence for several rotational alignments. The positive-parity yrast band of Ce-135(58), populated through the p4n channel of this reaction, was also populated to spin similar to 38 (h) over bar and excitation energy 18 MeV. Cranking calculations indicate that these nuclei are soft with respect to the triaxiality parameter gamma and that several competing nuclear shapes occur at high spin.},
  articleno    = {047302},
  author       = {Paul, E. S. and Fox, C. and Boston, A. J. and Chantler, H. J. and Chiara, C. J. and Clark, R. M. and Cromaz, M. and Descovich, M. and Fallon, P. and Fossan, D. B. and Hecht, A. A. and Koike, T. and Lee, I. Y. and Macchiavelli, A. O. and Nolan, P. J. and Starosta, K. and Wadsworth, R. and Ragnarsson, Ingemar},
  issn         = {0556-2813},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {High-spin yrast states in the gamma-soft nuclei Pr-135 and Ce-134},
  url          = {http://dx.doi.org/10.1103/PhysRevC.84.047302},
  volume       = {84},
  year         = {2011},
}