Lifetime measurements and shape coexistence in Dy144

M. G. Procter, D. M. Cullen, C. Scholey, B. Niclasen, P. J R Mason, S. V. Rigby, J. A. Dare, A. Dewald, P. T. Greenlees, H. Iwasaki, U. Jakobsson, P. M. Jones, R. Julin, S. Juutinen, S. Ketelhut, M. Leino, N. M. Lumley, O. Möller, M. Nyman, P. PeuraT. Pissulla, A. Puurunen, P. Rahkila, W. Rother, P. Ruotsalainen, J. Sarén, J. Sorri, J. Uusitalo

    Research output: Contribution to journalArticlepeer-review


    The known level scheme of Dy144 has been extended and lifetime measurements have been made with the recoil-distance Doppler-shift method. Reduced transition probabilities and deformations have been determined for four low-lying transitions. These states form part of the first observed band crossing, giving information on the change in nuclear deformation resulting from the rearrangement of h11/2 protons in the nucleus. Two bands built upon excited 10+ states have been assigned π(h11/2)2 prolate and ν(h11/2)-2 oblate configurations with τ=12(2)ps and 0.01
    Original languageEnglish
    Article number054320
    JournalPhysical Review C - Nuclear Physics
    Issue number5
    Publication statusPublished - 27 May 2010


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