Abstract
We search for the process using the full Belle data set of , corresponding to pairs, collected at the resonance with the Belle detector at the KEKB asymmetric-energy collider. We reconstruct one meson in a hadronic decay and search for the process in the remainder of the event. No significant signal is observed and an upper limit of is obtained at the 90% confidence level.
- Received 23 September 2015
DOI:https://doi.org/10.1103/PhysRevD.93.032007
© 2016 American Physical Society