Hexadecapole transition moments in strongly deformed nuclei and the validity of the sd-boson approximation in the IBA

PB Goldhoorn, MN Harakeh, Y Iwasaki, LW Put, F Zwarts, P van Isacker

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    The low-lying spectrum of 156Gd up to 3 MeV has been investigated with proton scattering at Ep = 40 MeV. Considerable hexadecapole transition strength is found at Ex>1.5 MeV indicating the necessity for the inclusion of a g-boson in the IBA to explain properties of states above this energy. An IBA calculation including a g-boson reproduces qualitatively the experimentally observed hexadecapole transition strength below 3 MeV.
    Original languageEnglish
    Pages (from-to)291-296
    Number of pages6
    JournalPhysics Letters B
    Issue number4-5
    Publication statusPublished - 30-Jul-1981

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