Lifetime measurements of the neutron-rich N=30 isotones 50Ca and 51Sc: Orbital dependence of effective charges in the fp shell (CROSBI ID 149870)
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Podaci o odgovornosti
Valiente-Dobon, J. J. ; Mengoni, D. ; Gadea, A. ; Farnea, E. ; Lenzi, S. M. ; Lunardi, S. ; Dewald, A. ; Pissulla, T. ; Szilner, Suzana ; Stefanini, A. M. ; Broda, R. ; Recchia, F. ; Algora, A. ; Angus, L. ; Bazzacco, D. ; Benzoni, G. ; Bizzeti, P. G. ; Bizzeti-Sona, A. M. ; Boutachkov, P. ; Corradi, L. ; Crespi, F. ; de Angelsi, G. ; Fioretto, E. ; Gorgen, A. ; Gorska, M. ; Gottardo, A.: Grodner, E. ; Howard, A. ; Krolas, W. ; Leoni, S. ; Mason, P. ; Menegazzo, R. ; Montanari, D. ; Montagnoli, G. ; Napoli, D. R. ; Obertelli, A. ; Pawlat, T. ; Rubio, B. ; Sahin, E. ; Scarlassara, F. ; Smith, J. F. ; Steppenbeck, D. ; Ur, C. A. ; Wady, P. T. ; Wrzesinski, J. ; Maglione, E. ; Hamamoto, I.
engleski
Lifetime measurements of the neutron-rich N=30 isotones 50Ca and 51Sc: Orbital dependence of effective charges in the fp shell
The lifetimes of the first excited states of the N=30 istones 50Ca and 51Sc have been determined using a novel techinique that combines the Recoil Distance Doppler Shift method with the CLARA-PRISMA sepctrometers. This is the first time such a method is applied to measure lifetimes of neutron-rich nuclei populated via a multinucleon transfer reaction. This exteneds the lifetime knowledge beyond the f7/2 shell closure and allows to derive the effective proton and neutron charges in the fp shell near the doubly-magic nucleus 48Ca, using large-scale shell-model claculations. These results seem to indicate an orbital dependence of the core polarization along the fp shell.
lifetime measurement; fp shell; 50Ca; 51Sc; effective charges
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