Abstract
A search for the decays and is performed on a sample of events collected by the BABAR detector at the SLAC PEP-II asymmetric-energy storage ring. No evidence for the decays is seen. We set the following limits on the individual branching fractions: , , and at the 90% confidence level. We use the quark model to limit the combined branching fraction , from which we determine a constraint on the ratio of Cabibbo-Kobayashi-Maskawa matrix elements .
- Received 11 August 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.011801
©2005 American Physical Society