Abstract
We report on a search for and decays in collisions at using of data collected by the CDF II experiment at the Fermilab Tevatron Collider. The decay rates of these rare processes are sensitive to contributions from physics beyond the standard model. One event survives all our selection requirements, consistent with the background expectation. We derive branching ratio limits of and at 90% confidence level.
- Received 19 March 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.032001
©2004 American Physical Society