Evidence for prolate structure in light Pb isotopes from in-beam γ-ray spectroscopy of Pb185

J. Pakarinen*, A. N. Andreyev, R. Julin, S. Juutinen, S. Antalic, L. Bianco, I. G. Darby, S. Eeckhaudt, T. Grahn, P. T. Greenlees, D. G. Jenkins, P. Jones, P. Joshi, H. Kettunen, M. Leino, A. P. Leppänen, P. Nieminen, M. Nyman, R. D. Page, J. PerkowskiP. M. Raddon, P. Rahkila, D. Rostron, J. Saren, C. Scholey, J. Sorri, B. Streicher, J. Uusitalo, K. Van De Vel, M. Venhart, R. Wadsworth, D. R. Wiseman

*Corresponding author for this work

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    9 Citations (Scopus)

    Abstract

    For the first time, excited states in Pb185 have been observed in in-beam γ-ray spectroscopic measurements using the recoil-decay tagging method. The resulting level scheme reveals a strongly coupled yrast band structure that originates from coupling of the i13/2 quasineutron to a prolate deformed core. The band is also observed to de-excite via the spherical α-decaying 13/2+ isomeric state.

    Original languageEnglish
    Article number031303
    JournalPhysical Review C - Nuclear Physics
    Volume80
    Issue number3
    DOIs
    Publication statusPublished - 24 Sept 2009

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