Octupole vibrations and Coriolis-induced mixing in <sup>244</sup>Pu, <sup>246</sup>Cm and <sup>248,250</sup>Cf

ORAL

Abstract

In a series of heavy-ion inelastic scattering experiments at the ATLAS facility at Argonne and using Gammasphere, the Kπ=2- octupole vibrational rotational bands in 244Pu, 246Cm and 248,250Cf have been populated to high spin, beyond 20 hbar. In all cases, an odd-even staggering pattern was found in the energy of the levels, that increases in amplitude with spin. Both the size of the staggering and its spin dependence appear remarkably consistent with Coriolis-induced two-level mixing with the Kπ=0- band, although the true physics must reflect more indirect interactions involving other orientations of the octupole phonon.

*Supported by the U.S. Department of Energy

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Presenters

  • C.J. J Lister

    • University of Massachusetts Lowell

Authors

  • Y. Qiu

    • University of Massachusetts Lowell

  • S.S. Hota

    • University of Massachusetts Lowell

  • C.J. J Lister

    • University of Massachusetts Lowell

  • T.L. Khoo

    • ANL
    • Argonne National Laboratory

  • Robert V Janssens

    • University of North Carolina at Chapel Hill
    • Department of Physics & Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC-27599-3255, USA and Triangle Universities Nuclear Laboratory, Duke University,
    • University of North Carolina Chapel Hill

  • I. Ahmad

    • Argonne National Laboratory

  • Michael P Carpenter

    • Argonne National Laboratory
    • ANL

  • J.P. P Greene

    • Argonne National Laboratory

  • Filip G Kondev

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, IL-60439

  • Torben Lauritsen

    • Argonne National Laboratory
    • ANL

  • D. Seweryniak

    • Argonne National Laboratory
    • ANL

  • Shaofei Zhu

    • Brookhaven National Laboratory
    • Brookhaven National Lab
    • Argonne National Laboratory