Octupole correlations in the structure of 02+ bands in the N=88 nuclei 150Sm and 152Gd

S. P. Bvumbi, J. F. Sharpey-Schafer, P. M. Jones, S. M. Mullins, B. M. Nyakó, K. Juhász, R. A. Bark, L. Bianco, D. M. Cullen, D. Curien, P. E. Garrett, P. T. Greenlees, J. Hirvonen, U. Jakobsson, J. Kau, F. Komati, R. Julin, S. Juutinen, S. Ketelhut, A. KorichiE. A. Lawrie, J. J. Lawrie, M. Leino, T. E. Madiba, S. N.T. Majola, P. Maine, A. Minkova, N. J. Ncapayi, P. Nieminen, P. Peura, P. Rahkila, L. L. Riedinger, P. Ruotsalainen, J. Saren, C. Scholey, J. Sorri, S. Stolze, J. Timar, J. Uusitalo, P. A. Vymers

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Abstract

Knowledge of the exact microscopic structure of the 01 + ground state and first excited 02+ state in 150Sm is required to understand the branching of double β decay to these states from 150Nd. The detailed spectroscopy of 150Sm and 152Gd has been studied using (α,xn) reactions and the γ-ray arrays AFRODITE and JUROGAM II. Consistently strong E1 transitions are observed between the excited Kπ = 02+ bands and the lowest negative parity bands in both nuclei. These results are discussed in terms of the possible permanent octupole deformation in the first excited Kπ = 02+ band and also in terms of the "tidal wave" model of Frauendorf.

Original languageEnglish
Article number044333
JournalPhysical Review C - Nuclear Physics
Volume87
Issue number4
DOIs
Publication statusPublished - Apr 25 2013

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Bvumbi, S. P., Sharpey-Schafer, J. F., Jones, P. M., Mullins, S. M., Nyakó, B. M., Juhász, K., Bark, R. A., Bianco, L., Cullen, D. M., Curien, D., Garrett, P. E., Greenlees, P. T., Hirvonen, J., Jakobsson, U., Kau, J., Komati, F., Julin, R., Juutinen, S., Ketelhut, S., ... Vymers, P. A. (2013). Octupole correlations in the structure of 02+ bands in the N=88 nuclei 150Sm and 152Gd. Physical Review C - Nuclear Physics, 87(4), [044333]. https://doi.org/10.1103/PhysRevC.87.044333