The lifetimes of the first excited states of the Z = 18 44Ar and 46Ar isotopes have been determined using a novel technique that combines the Recoil Distance Doppler Shift method with the CLARA-PRISMA spectrometers for Multinucleon Transfer Reactions. The B(E2) values extracted for the 2+ → 0+ transitions in both nuclei, as well as for higher excites states in 44Ar, are discussed and compared with the available experimental results and with the new large-scale shell-model calculations.
Evolution of the Ar isotopic chain : the N=28 shell gap south of 48Ca / D. Mengoni, J. J.Valiente-Dobon, A. Gadea, S. M. Lenzi, S. Lunardi, R. Broda, A. Dewald, T. Pissulla, L. Angus, S. Aydin, D. Bazzacco, G. Benzoni, P.G. Bizzeti, A.M. Bizzeti-Sona, L. Corradi, F. Crespi, G. de Angelis, E. Farnea, E. Fioretto, A. Goergen, A. Gottardo, E. Grodner, W. Krolas, S. Leoni, P. Mason, D. Montanari, G. Montagnoli, D.R. Napoli, A. Obertelli, T. Pawlat, G. Pollarolo, F. Recchia, A. Algora, B. Rubio, E. Sahin, F. Scarlassara, J. F. Smith, A.M. Stefanini, S. Szilner, C. A. Ur, P.T. Wady, J. Wrzesinski. - In: NUCLEAR PHYSICS. A. - ISSN 0375-9474. - 834:1/4(2010), pp. 69c-71c. [10.1016/j.nuclphysa.2010.01.020]
Evolution of the Ar isotopic chain : the N=28 shell gap south of 48Ca
F. Crespi;S. Leoni;D. Montanari;
2010
Abstract
The lifetimes of the first excited states of the Z = 18 44Ar and 46Ar isotopes have been determined using a novel technique that combines the Recoil Distance Doppler Shift method with the CLARA-PRISMA spectrometers for Multinucleon Transfer Reactions. The B(E2) values extracted for the 2+ → 0+ transitions in both nuclei, as well as for higher excites states in 44Ar, are discussed and compared with the available experimental results and with the new large-scale shell-model calculations.
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