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N=151Pu,Cm and Cf nuclei under rotational stress: Role of higher-order deformations

Fast-rotating N=151 isotones 245Pu, 247Cm and 249Cf have been studied through inelastic excitation and transfer reactions with radioactive targets. While all have a ground-state band built on a νj15/2[734]9/2− Nilsson configuration, new excited bands have also been observed in each isotone. These od...

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Published in:Physics letters. B 2014-12, Vol.739, p.13-18
Main Authors: Hota, S.S., Chowdhury, P., Khoo, T.L., Carpenter, M.P., Janssens, R.V.F., Qiu, Y., Ahmad, I., Greene, J.P., Tandel, S.K., Seweryniak, D., Zhu, S., Bertone, P.F., Chiara, C.J., Deo, A.Y., D'Olympia, N., Gros, S., Guess, C.J., Harrington, T., Hartley, D.J., Henning, G., Hoffman, C.R., Jackson, E.G., Kondev, F.G., Lakshmi, S., Lauritsen, T., Lister, C.J., McCutchan, E.A., Moran, K., Nair, C., Peterson, D., Shirwadkar, U., Stefanescu, I.
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container_title Physics letters. B
container_volume 739
creator Hota, S.S.
Chowdhury, P.
Khoo, T.L.
Carpenter, M.P.
Janssens, R.V.F.
Qiu, Y.
Ahmad, I.
Greene, J.P.
Tandel, S.K.
Seweryniak, D.
Zhu, S.
Bertone, P.F.
Chiara, C.J.
Deo, A.Y.
D'Olympia, N.
Gros, S.
Guess, C.J.
Harrington, T.
Hartley, D.J.
Henning, G.
Hoffman, C.R.
Jackson, E.G.
Kondev, F.G.
Lakshmi, S.
Lauritsen, T.
Lister, C.J.
McCutchan, E.A.
Moran, K.
Nair, C.
Peterson, D.
Shirwadkar, U.
Stefanescu, I.
description Fast-rotating N=151 isotones 245Pu, 247Cm and 249Cf have been studied through inelastic excitation and transfer reactions with radioactive targets. While all have a ground-state band built on a νj15/2[734]9/2− Nilsson configuration, new excited bands have also been observed in each isotone. These odd-N excited bands allow a comparison of the alignment behavior for two different configurations, where the νj15/2 alignment is either blocked or allowed. The effect of higher order deformations is explored through cranking calculations, which help clarify the elusive nature of νj15/2 alignments.
doi_str_mv 10.1016/j.physletb.2014.10.021
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source ScienceDirect Freedom Collection 2022-2024; ScienceDirect (Online service)
subjects Higher-order deformations
Inelastic and transfer reactions
Neutron-rich
Rotational alignments
Superheavy
title N=151Pu,Cm and Cf nuclei under rotational stress: Role of higher-order deformations
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