The transition strenghts for the low-lying levels of (122,124)Ba have been determined analysing the Recoil Distance Doppler Shift data by the Differential Decay Curve Method. The trend of normalised B(E2) reveals a drop in correspondance of the 8(1)(+) state. This feature is also present in (122)Ba: entering the backbending region the interplay between collective and quasiparticle degrees of freedom have to be carefully taken into account.
Lifetime measurements in light barium isotopes
MICHELAGNOLI, CATERINA;BRANDOLINI, FRANCO;LENZI, SILVIA MONICA;LUNARDI, SANTO;MENGONI, DANIELE;PAVAN, PIETRO;
2010
Abstract
The transition strenghts for the low-lying levels of (122,124)Ba have been determined analysing the Recoil Distance Doppler Shift data by the Differential Decay Curve Method. The trend of normalised B(E2) reveals a drop in correspondance of the 8(1)(+) state. This feature is also present in (122)Ba: entering the backbending region the interplay between collective and quasiparticle degrees of freedom have to be carefully taken into account.
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