NDLI: Search for two-phonon octupole excitations in 146Gd

Content Provider	Springer Nature Link
Author	Orce, J. N. Kumar Raju, M. Khumalo, N. A. Diko, T. S. Jones, P. Bark, R. A. Lawrie, E. A. Majola, S. N. T. Robledo, L. M. Rubio, B. Wiedeking, M. Easton, J. Khaleel, E. A. Kheswa, B. V. Kheswa, N. Herbert, M. S. Lawrie, J. J. Masiteng, P. L. Nchodu, M. R. Ndayishimye, J. Negi, D. ncolela, S. P. Ntshangase, S. S. Papka, P. Roux, D. G. Shirinda, O. Sithole, P. S. Yates, S. W.
Copyright Year	2016
Abstract	The low-spin structure of the nearly spherical nucleus 146Gd was studied using the 144Sm(4He, 2n) fusion-evaporation reaction. High-statistics $\gamma - \gamma$ coincidence measurements were performed at iThemba LABS with 7× 109 $ \gamma$ - $ \gamma$ coincidence events recorded. Gated $ \gamma$ -ray energy spectra show evidence for the $ 6^{+}_{2} \rightarrow 3^{-}_{1} \rightarrow 0^{+}_{1}$ cascade of E3 transitions in agreement with recent findings by Caballero and co-workers, but with a smaller branching ratio of $ I_{\gamma} = 4.7(10)$ for the $6^{+}_{2} \rightarrow 3^{-}_{1}$ 1905.1 keV $ \gamma$ ray. Although these findings may support octupole vibrations in spherical nuclei, sophisticated beyond mean-field calculations including angular-momentum projection are required to interpret in an appropriate way the available data due to the failure of the rotational model assumptions in this nucleus.
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF
ISSN	14346001
Journal	The European Physical Journal A - Hadrons and Nuclei
Volume Number	52
Issue Number	6
e-ISSN	1434601X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-06-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nuclear Physics, Heavy Ions, Hadrons Particle and Nuclear Physics Nuclear Fusion
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics

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