Abstract
We present a search for the decay in pairs recorded with the BABAR detector at the PEP-II -factory. We search for these decays in a sample of events where one -meson is reconstructed as . Using the method of Feldman and Cousins, we obtain , which excludes zero at . We interpret the central value in the context of the standard model and find the meson decay constant to be . We find no evidence for and and set upper limits at the 90% C.L. and .
- Received 14 December 2009
DOI:https://doi.org/10.1103/PhysRevD.81.051101
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