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

J. J. Valiente-Dobon, D. Mengoni, A. Gadea, E. Farnea, S. M. Lenzi, S. Lunardi, A. Dewald, Th. Pissulla, S. Szilner, R. Broda, F. Recchia, A. Algora, L. Angus, D. Bazzacco, G. Benzoni, P. G. Bizzeti, A. M. Bizzeti-Sona, P. Boutachkov, L. Corradi, F. CrespiG. de Angelis, E. Fioretto, A. Goergen, M. Gorska, A. Gottardo, E. Grodner, B. Guiot, A. Howard, W. Krolas, S. Leoni, P. Mason, R. Menegazzo, D. Montanari, G. Montagnoli, D. R. Napoli, A. Obertelli, T. Pawlat, B. Rubio, E. Sahin, F. Scarlassara, R. Silvestri, A. M. Stefanini, J. F. Smith, D. Steppenbeck, C. A. Ur, P. T. Wady, J. Wrzesinski, E. Maglione, Ikuko Hamamoto-Kuroda

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
Article number242502
JournalPhysical Review Letters
Volume102
Issue number24
DOIs
Publication statusPublished - 2009

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

  • Physical Sciences

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