High-K band in 140Gd
AUTOR(ES)
Oliveira, J.R.B., Falla-Sotelo, F., Rao, M.N., Alcántara-Núñez, J.A., Cybulska, E.W., Medina, N.H., Ribas, R.V., Rizzutto, M.A., Seale, W.A., Bazzacco, D., Brandolini, F., Lunardi, S., Rossi-Alvarez, C., Petrache, C., Podolyák, Zs., Ur, C.A., Acuña, D. de, Angelis, G.de, Farnea, E., Foltescu, D., Gadea, A., Napoli, D.R., Poli, M. de, Spolaore, P., Ionescu-Bujor, M., Iordachescu, A.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2006-12
RESUMO
High-spin states in the neutron-deficient140Gd nucleus have been studied with the 92Mo(54Fe,alpha2p) reaction at a beam energy of 240 MeV. The level scheme of 140Gd was considerably extended from what was previously known. In this work we concentrate on one of the 9 bands observed, which presents relatively strong M1 transitions and negligible signature splitting, and has an isomeric band-head, indicating a strongly coupled or high-K configuration. We compare this band to the Kpi = 8- bands observed in N=74 isotones and propose a similar configuration assignment, but with a somewhat larger deformation.
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