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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Veröffentlicht in:	Physics letters. B 2014-12, Vol.739, p.13-18
Hauptverfasser:	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.
Format:	Artikel
Sprache:	eng
Schlagworte:	Higher-order deformations Inelastic and transfer reactions Neutron-rich Rotational alignments Superheavy
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Zusammenfassung:	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.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2014.10.021