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Absence of paired crossing in the positive parity bands of Cs 124

Singh, A. K.; Basu, A.; Nag, Somnath; Hübel, H.; Domscheit, J.; Ragnarsson, I. LU ; Al-Khatib, A.; Hagemann, G. B.; Herskind, B. and Elema, D. R., et al. (2018) In Physical Review C 97(2).
Abstract

High-spin states in Cs124 were populated in the Ni64(Ni64,p3n) reaction and the Gammasphere detector array was used to measure γ-ray coincidences. Both positive- and negative-parity bands, including bands with chiral configurations, have been extended to higher spin, where a shape change has been observed. The configurations of the bands before and after the alignment are discussed within the framework of the cranked Nilsson-Strutinsky model. The calculations suggest that the nucleus undergoes a shape transition from triaxial to prolate around spin I≃22 of the positive-parity states. The alignment gain of 8â.,, observed in the positive-parity bands, is due to partial alignment of several valence nucleons. This indicates the absence of... (More)

High-spin states in Cs124 were populated in the Ni64(Ni64,p3n) reaction and the Gammasphere detector array was used to measure γ-ray coincidences. Both positive- and negative-parity bands, including bands with chiral configurations, have been extended to higher spin, where a shape change has been observed. The configurations of the bands before and after the alignment are discussed within the framework of the cranked Nilsson-Strutinsky model. The calculations suggest that the nucleus undergoes a shape transition from triaxial to prolate around spin I≃22 of the positive-parity states. The alignment gain of 8â.,, observed in the positive-parity bands, is due to partial alignment of several valence nucleons. This indicates the absence of band crossing due to paired nucleons in the bands.

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Physical Review C
volume
97
issue
2
publisher
American Physical Society
external identifiers
  • scopus:85043234937
ISSN
2469-9985
DOI
10.1103/PhysRevC.97.024323
language
English
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yes
id
d053f473-713a-48a9-9daf-4535dc81357c
date added to LUP
2018-03-20 15:26:31
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2019-08-25 05:02:23
@article{d053f473-713a-48a9-9daf-4535dc81357c,
  abstract     = {<p>High-spin states in Cs124 were populated in the Ni64(Ni64,p3n) reaction and the Gammasphere detector array was used to measure γ-ray coincidences. Both positive- and negative-parity bands, including bands with chiral configurations, have been extended to higher spin, where a shape change has been observed. The configurations of the bands before and after the alignment are discussed within the framework of the cranked Nilsson-Strutinsky model. The calculations suggest that the nucleus undergoes a shape transition from triaxial to prolate around spin I≃22 of the positive-parity states. The alignment gain of 8â.,, observed in the positive-parity bands, is due to partial alignment of several valence nucleons. This indicates the absence of band crossing due to paired nucleons in the bands.</p>},
  articleno    = {024323},
  author       = {Singh, A. K. and Basu, A. and Nag, Somnath and Hübel, H. and Domscheit, J. and Ragnarsson, I. and Al-Khatib, A. and Hagemann, G. B. and Herskind, B. and Elema, D. R. and Wilson, J. N. and Clark, R. M. and Cromaz, M. and Fallon, P. and Görgen, A. and Lee, I. Y. and Ward, D. and Ma, W. C.},
  issn         = {2469-9985},
  language     = {eng},
  month        = {02},
  number       = {2},
  publisher    = {American Physical Society},
  series       = {Physical Review C},
  title        = {Absence of paired crossing in the positive parity bands of Cs 124},
  url          = {http://dx.doi.org/10.1103/PhysRevC.97.024323},
  volume       = {97},
  year         = {2018},
}