Abstract
We report on a measurement of the branching fraction of the Cabibbo-suppressed decay , where . The data were collected by the Collider Detector at Fermilab during 1992–1995 and correspond to an integrated luminosity of in collisions at . A signal of events is observed and we determine the ratio of branching fractions to be . Using the world average value for , we calculate the branching fraction to be . We also search for the decay and report a confidence level limit on as a function of the lifetime.
- Received 9 September 1996
DOI:https://doi.org/10.1103/PhysRevLett.77.5176
©1996 American Physical Society