Evidence for noncollective oblate structures at high spin in 123Cs

A. K. Singh, H. Hübel, J. Domscheit, G. B. Hagemann, B. Herskind, D. R. Jensen, J. N. Wilson, R. Clark, M. Cromaz, P. Fallon, A. Görgen, I. Y. Lee, A. O. Macchiavelli, D. Ward, H. Amro, W. C. Ma, J. Timár, I. Ragnarsson

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Abstract

High-spin states in 123Cs were populated in the 64Ni(64Ni,p4n) reaction at a beam energy of 265 MeV. Gamma-ray coincidences were measured using the Gammasphere spectrometer. Two additional bands have been placed in the level scheme and the four previously known bands have been extended to higher spin. At the highest spins, two of the bands show irregular level sequences. These structures of noncollective excitations, which compete with collective rotation, are interpreted as band-terminating states. The results are compared to cranked Nilsson-Strutinsky calculations, and configuration assignments to the bands and to the terminating states are discussed.

Original languageEnglish
Article number034315
Pages (from-to)343151-3431515
Number of pages3088365
JournalPhysical Review C - Nuclear Physics
Volume70
Issue number3
DOIs
Publication statusPublished - Sep 2004

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Singh, A. K., Hübel, H., Domscheit, J., Hagemann, G. B., Herskind, B., Jensen, D. R., Wilson, J. N., Clark, R., Cromaz, M., Fallon, P., Görgen, A., Lee, I. Y., Macchiavelli, A. O., Ward, D., Amro, H., Ma, W. C., Timár, J., & Ragnarsson, I. (2004). Evidence for noncollective oblate structures at high spin in 123Cs. Physical Review C - Nuclear Physics, 70(3), 343151-3431515. [034315]. https://doi.org/10.1103/PhysRevC.70.034315