Transition probabilities in the X(5) candidate $^{122}$Ba
/ Authors
P. Bizzeti, A. Bizzeti-Sona, D. Tonev, A. Giannatiempo, C. Ur, A. Dewald, B. Melon, C. Michelagnoli, P. Petkov, D. Bazzacco
and 23 more authors
A. Costin, G. Angelis, F. D. Vedova, M. Fantuzi, E. Farnea, C. Fransen, A. Gadea, S. Lenzi, S. Lunardi, N. Mărginean, R. Marginean, R. Menegazzo, D. Mengoni, O. Moeller, A. Nannini, D. Napoli, M. Nespolo, P.Pavan, A. Perego, C. Petrache, N. Pietralla, C. Alvarez, P. Sona
/ Abstract
To investigate the possible X(5) character of {sup 122}Ba, suggested by the ground-state band energy pattern, the lifetimes of the lowest yrast states of {sup 122}Ba have been measured, via the recoil distance Doppler-shift method. The relevant levels have been populated by using the {sup 108}Cd({sup 16}O,2n){sup 122}Ba and the {sup 112}Sn({sup 13}C,3n){sup 122}Ba reactions. The B(E2) values deduced in the present work are compared to the predictions of the X(5) model and to calculations performed in the framework of the IBA-1 and IBA-2 models.
Journal: Physical Review C