Abstract
Using a data sample of events collected with the BESIII detector operating at the BEPCII storage ring, the decays and are observed with a statistical significance of and , respectively. The branching fractions are measured to be and . In addition, we measure the branching fraction of to be , which represents an improvement of precision over previous results.
- Received 10 August 2017
DOI:https://doi.org/10.1103/PhysRevD.96.052003
© 2017 American Physical Society