Evidence for triaxial deformation near [Formula Presented] Collective bands in [Formula Presented] and [Formula Presented]

D. E. Appelbe, P. J. Twin, C. W. Beausang, D. M. Cullen, D. Curien, G. Duchêne, S. Ertürk, Ch Finck, B. Haas, E. S. Paul, D. C. Radford, C. Rigollet, M. B. Smith, O. Stezowski, J. C. Waddington, A. N. Wilson

Research output: Contribution to journalArticlepeer-review

Abstract

The [Formula Presented] isotopes of dysprosium and holmium have been investigated using the Eurogam II [Formula Presented]-ray spectrometer. A new collective rotational band has been observed in [Formula Presented] and the previously observed [Formula Presented] band in [Formula Presented] has been extended to much higher spin. Comparing these bands and similar bands in [Formula Presented] with the collective bands in the [Formula Presented] isotopes of Dy, Ho, and Er suggests that the first [Formula Presented] proton crossing is not observed at [Formula Presented] This observation has led to the reinterpretation of four of the previously observed bands in [Formula Presented] It is proposed that the low deformation collective bands in [Formula Presented] and [Formula Presented] are associated with a triaxial shape with large positive gamma and that they have a similar origin to the recently observed triaxial superdeformed bands in [Formula Presented].

Original languageEnglish
Pages (from-to)9
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume66
Issue number4
DOIs
StatePublished - 2002
Externally publishedYes

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