Spin-dependent triaxial deformation in neutron-rich Mo isotopes

A. G. Smith, J. L. Durell, W. R. Phillips, M. A. Jones, M. Leddy, W. Urban, B. J. Varley, I. Ahmad, L. R. Morss, M. Bentaleb, A. Guessous, E. Lubkiewicz, N. Schulz, R. Wyss

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The Eurogam-2 array has been used to study γ rays emitted following the spontaneous fission of a 248Cm source. Analysis of Doppler-broadened line shapes corresponding to decays from excited rotational states in neutron-rich Sr, Zr, and Mo fission fragments has enabled the first measurements of state lifetimes in these nuclei at around I = 10. The results are consistent with a predicted rotation-induced change in the triaxiality of the yrast states of the Mo isotopes that contrasts with the more stable behavior observed in the Zr and Sr nuclei.
    Original languageEnglish
    Pages (from-to)1711-1714
    Number of pages3
    JournalPhysical Review Letters
    Volume77
    Issue number9
    Publication statusPublished - 1996

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