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Closed Access item Lifetime Measurements of the Neutron-Rich N=30 Isotones Ca-50 and Sc-51: Orbital Dependence of Effective Charges in the fp Shell

Authors:Valiente-Dobón, J. J.
Mengoni, D.
Gadea, Andrés
Farmea, E.
Lenzi, S. M.
Lunardi, S.
Dewald, A.
Pissulla, T.
Szilner, S.
Broda, R.
Recchia, F.
Algora, Alejandro
Agus, L.
Bazzacco, D.
Benzoni, G.
Bizzeti, P.G.
Bizzeti-Sona, A.M.
Boutachkov, P.
Corradi, L.
Crespi, F.
De Angelis, G.
Fioretto, E.
Gorgen, A.
Gorska, M.
Gottardo, A.
Grodner, E.
Guiot, B.
Howard, A.
Krolas, W.
Leoni, S.
Mason, P.
Menegazzo, R.
Montanari, D.
Montagnoli, G.
Napoli, D. R.
Obertelli, A.
Pawlat, T.
Rubio, Berta
Sahin, E.
Scarlassara, F.
Silvestri, R.
Stefanini, A.M.
Smith, J.F.
Steppenbeck, D.
Ur, C. A.
Wady, P.T.
Wrzesinksi, J
Maglione, E.
Hanamoto, I.
Issue Date:23-Jun-2009
Publisher:American Physical Society
Citation:Physical Review Letters 102(24: 242502 (2009)
Abstract:The lifetimes of the first excited states of the N=30 isotones Ca-50 and Sc-51 have been determined using the Recoil Distance Doppler Shift method in combination with the CLARA-PRISMA spectrometers. This is the first time such a method is applied to measure lifetimes of neutron-rich nuclei populated via a multinucleon transfer reaction. This extends the lifetime knowledge beyond the f(7/2) shell closure and allows us to derive the effective proton and neutron charges in the fp shell near the doubly magic nucleus Ca-48, using large-scale, shell-model calculations. These results indicate an orbital dependence of the core polarization along the fp shell.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevLett.102.242502
URI:http://hdl.handle.net/10261/16667
ISSN:0031-9007
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Appears in Collections:(IFIC) Artículos

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