Deformation of rotational structures in Kr73 and Rb74: Probing the additivity principle at triaxial shapes

F. Johnston-Theasby, A. V. Afanasjev, C. Andreoiu, R. A E Austin, M. P. Carpenter, D. Dashdorj, S. J. Freeman, P. E. Garrett, J. Greene, A. Görgen, D. G. Jenkins, P. Joshi, A. O. MacChiavelli, F. Moore, G. Mukherjee, W. Reviol, D. Sarantites, D. Seweryniak, M. B. Smith, C. E. SvenssonJ. J. Valiente-Dobón, R. Wadsworth, D. Ward

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Lifetimes have been deduced in the intermediate/high-spin range for the three known rotational bands in Kr73 and the T=0 band in Rb74 using the residual Doppler shift method. This has enabled relative transition quadrupole moments to be studied for the first time in triaxial nuclei as a function of spin. The data suggest that the additivity principle for transition quadrupole moments is violated, a result that is in disagreement with predictions from cranked Nilsson-Strutinsky and cranked relativistic mean-field theory calculations. The reasons for the discrepancy are not understood but may indicate that important correlations are missing from the models. © 2008 The American Physical Society.
    Original languageEnglish
    Article number034312
    JournalPhysical Review C - Nuclear Physics
    Volume78
    Issue number3
    DOIs
    Publication statusPublished - 18 Sep 2008

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