Abstract
We present a search for the radiative leptonic decay , where , , using a data sample of pairs collected by the BABAR experiment. In this analysis, we fully reconstruct the hadronic decay of one of the mesons in decays, then search for evidence of in the rest of the event. We observe no significant evidence of signal decays and report model-independent branching fraction upper limits of , , and ( or ), all at the 90% confidence level.
- Received 14 July 2009
DOI:https://doi.org/10.1103/PhysRevD.80.111105
©2009 American Physical Society