Abstract
We report the first observation of and evidence for . We measure the product of branching fractions for the former to be and find that does not dominate the decay mode. We also measure . This study is based on the full data sample of ( pairs) collected at the resonance with the Belle detector at the KEKB collider.
- Received 27 January 2015
DOI:https://doi.org/10.1103/PhysRevD.91.051101
© 2015 American Physical Society