g factors of the 9- and 11- isomers in 194Pb and 196Pb: Configuration mixing and deformation

K. Vyvey*, G. D. Dracoulis, A. N. Wilson, P. M. Davidson, A. E. Stuchbery, G. J. Lane, A. P. Byrne, T. Kibédi

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    The g factors of the 9- and 11- yrast states in 194Pb and 196Pb have been measured using the time-dependent perturbed angular distribution (TDPAD) technique. An analysis of the systematics of the properties of these states in the light Pb isotopes is presented. The results confirm the dominance of the ν(2f5/2 -11i13/2-1) configuration in the 9- isomer. The values for the 11- isomers are consistent with the π(3s1/2-21h9/2li13/2) configuration, but they are smaller than those in the Po isotones. The effects of core excitation and particle-vibration coupling are considered, but these do not lead to a detailed agreement between theory and experiment. A Nilsson approach, however, gives good agreement, providing support for a proposed oblate deformation.

    Original languageEnglish
    Article number064318
    Pages (from-to)064318-1-064318-8
    JournalPhysical Review C - Nuclear Physics
    Volume69
    Issue number6
    DOIs
    Publication statusPublished - Jun 2004

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