Abstract
We report improved measurements of branching fractions for and decays based on a data sample of 85.0 million pairs collected at the resonance with the Belle detector at the KEKB storage ring. This data sample is almost three times larger than the sample previously used. We observe clear signals for and decays and set upper limits on decays. The results can be used to give model-dependent constraints on the CKM angle as well as limits on the hadronic uncertainty in the time-dependent analysis of the angle
- Received 28 November 2003
DOI:https://doi.org/10.1103/PhysRevD.69.111102
©2004 American Physical Society