Abstract
We present a measurement of the branching fractions and charge-parity-(-)violating parameters in decays. The results are obtained from the final data sample containing pairs collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. We obtain the branching fractions which are in agreement with their respective current world averages. For the -violating parameters, we obtain where and represent the direct and mixing-induced asymmetry, respectively. We find no evidence of violation in the decay channel ; however, we obtain the first evidence of violation in the decay channel at the level of 3.1 standard deviations.
- Received 27 November 2013
DOI:https://doi.org/10.1103/PhysRevD.90.012002
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