Evidence for octupole correlation and chiral symmetry breaking inCs124

Lifetime measurements have been carried out using the Doppler shift attenuation method (DSAM) for the negative- and positive-parity bands built on pi h(11/2) circle times nu(d(5/2)g(7/2)) and pi h(11/2) circle times nu h(11/2) configurations, respectively, in Cs-124. The reduced transition probabilities have been obtained for both the bands and are compared with the available theoretical calculations. The enhanced B(E1) rates for the linking transitions between the bands with the above configurations suggest the existence of octupole correlations in Cs-124. The observed electromagnetic properties for the positive-parity bands in Cs-124 agree well with the characteristics pattern required for chiral symmetry breaking.