Isomers and excitation modes in the gamma-soft nucleus 192Os

G. D. Dracoulis*, G. J. Lane, A. P. Byrne, H. Watanabe, R. O. Hughes, F. G. Kondev, M. Carpenter, R. V.F. Janssens, T. Lauritsen, C. J. Lister, D. Seweryniak, S. Zhu, P. Chowdhury, Y. Shi, F. R. Xu

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)

    Abstract

    New spectroscopic results for high-spin states in 192Os populated in deep-inelastic reactions include the identification of a 2-ns, 12+ isomeric state at 2865 keV and a 295-ns, 20+ state at 4580 keV and their associated δJ=2 sequences. The structures are interpreted as manifestations of maximal rotation alignment within the neutron i13/2 and proton h11/2 shells at oblate deformation. Rotational band members based on the long-lived, Kπ=10- isomer are also identified for the first time. Configuration-constrained, potential-energy-surface calculations predict that other prolate multi-quasiparticle high-K states should exist at low energy.

    Original languageEnglish
    Pages (from-to)330-335
    Number of pages6
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume720
    Issue number4-5
    DOIs
    Publication statusPublished - 26 Mar 2013

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