Octupole correlations in the structure of 0+2 bands in the N=88 nuclei 150Sm and 152Gd
- Bvumbi, S.P.
- Sharpey-Schafer, J.F.
- Jones, Peter
- Mullins, S.M.
- Nyako, B.M.
- Juhasz, K.
- Bark, Robert
- Bianco, L.
- Cullen, David
- Curien, D.
- Garrett, P.E.
- Greenlees, Paul
- Hirvonen, J.
- Jakobsson, Ulrika
- Kau, J.
- Komati, F.
- Julin, Rauno
- Juutinen, Sakari
- Ketelhut, Steffen
- Korichi, A.
- Lawrie, E.A.
- Lawrie, J.J.
- Leino, Matti
- Madiba, T.E.
- Majola, S.N.T.
- Maine, P.
- Minkova, A.
- Ncapayi, N.J.
- Nieminen, Päivi
- Peura, Pauli
- Rahkila, Panu
- Riedinger, L.L.
- Ruotsalainen, Panu
- Sarén, Jan
- Scholey, Catherine
- Sorri, Juha
- Stolze, Sanna
- Timar, J.
- Uusitalo, Juha
- Vymers, P.A.
Publication date
February 2016
DOI Publisher
American Physical Society (APS)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.peerReviewe
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