Abstract
We report a measurement of the branching fraction of the decay , evidence and a branching fraction measurement for , and the determination of the total branching fraction, including the resonant and nonresonant contributions to the channel. We also determine the -wave contribution within the mass region. The absolute branching fractions are , , and , where the last systematic error is due to the branching fraction of . The branching fraction ratio is found to be . All results are based on a data sample collected at the resonance by the Belle experiment at the KEKB asymmetric-energy collider.
- Received 3 September 2013
DOI:https://doi.org/10.1103/PhysRevD.88.114006
© 2013 American Physical Society