Abstract
We have searched a sample of events for the flavor-changing neutral current decays and . We subject the latter decay to the requirement that the dilepton mass exceed 0.5 GeV. There is no indication of a signal. We obtain the confidence level upper limits and . We also obtain an upper limit on the weighted average . The weighted-average limit is only above the standard model prediction.
- Received 14 June 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.181803
©2001 American Physical Society