Lifetime measurements of spherical and deformed states in 1f 7/2 nuclei

N. H. Medina, F. Brandolini, S. M. Lenzi, N. Mărginean, R. V. Ribas,C. A. Ur,D. Bazzacco,S. Lunardi, R. Menegazzo,P. Pavan,C. Rossi-Alvarez, A. Algora-Pineda,G. de Angelis,M. De Poli,E. Farnea,A. Gadea,T. Martinez, D. R. Napoli, S. Hankonen,D. Bucurescu,M. Ionescu-Bujor, A. Iordachescu, J. A. Cameron, S. Kasemann, I. Schneider, J. M. Espino,J. Sanchez-Solano,A. Poves

Acta Physica Hungarica A) Heavy Ion Physics（2002）

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摘要

Lifetimes have been determined using the Doppler Shift Attenuation Method in the N ≈ Z nuclei 46 V and 48 V, populated with the reaction 28 Si on 24 Mg at 115 MeV and 24 Mg on 28 Si at 100 MeV using Au and Pb backed targets. The coexistence of spherical and deformed states in the middle of the 1f 7/2 shell is discussed. The B(E2) and B(M1) reduced rates agree very well with large scale shell model predictions.

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关键词

nuclear reactions 28Si + 24Mg at 115 MeV and 24Mg + 28Si at 100 MeV,measured Eγ and γ-γ coincidence,DSAM,46,48V deduced high-spin levels, J, π, B(E2), B(M1)

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