Abstract
Using events accumulated with the BESIII detector, we study decays to and final states. The branching fraction of is measured to be , where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of . No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of is observed, and the upper limit on the branching fraction is determined to be at the 90% confidence level.
- Received 13 December 2016
DOI:https://doi.org/10.1103/PhysRevD.95.092004
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