Abstract
We report the results of a search for based on a data set of data collected at the resonance with the Belle detector at the KEKB asymmetric collider. No substantial signal is found, and we set the branching fraction upper limit at 90% confidence level.
- Received 19 September 2003
DOI:https://doi.org/10.1103/PhysRevD.69.017101
©2004 American Physical Society