Structure of Pu240: Evidence for octupole phonon condensation?

X. Wang, R. V F Janssens, M. P. Carpenter, S. Zhu, I. Wiedenhöver, U. Garg, S. Frauendorf, T. Nakatsukasa, I. Ahmad, A. Bernstein, E. Diffenderfer, S. J. Freeman, J. P. Greene, T. L. Khoo, F. G. Kondev, A. Larabee, T. Lauritsen, C. J. Lister, B. Meredith, D. SeweryniakC. Teal, P. Wilson

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The expanded level structure of Pu240 available from the present study highlights the role of strong octupole correlations in this nucleus. In addition to a delayed alignment in the yrast band, the observations include the presence of both I+→(I-1)- and I-→(I-1)+E1 transitions linking states of the yrast and negative-parity bands at high spin and the presence of an additional even-spin, positive-parity band deexciting exclusively to the negative-parity sequence. The observations appear to be consistent with expectations based on the recently proposed concept of octupole phonon condensation. © 2009 The American Physical Society.
    Original languageEnglish
    Article number122501
    JournalPhysical Review Letters
    Volume102
    Issue number12
    DOIs
    Publication statusPublished - 23 Mar 2009

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