Abstract
The production of -lepton pairs in collisions at 29 GeV has been used to study the inclusive decay into five charged particles. Ten events are observed in the high-resolution spectrometer giving a branching ratio of . Five of the events contain photons which are consistent with coming from a single . With this interpretation we measure , . The branching-ratio upper limit for the decay mode is found, at 90% confidence level, to be 2.7×.
- Received 21 February 1985
DOI:https://doi.org/10.1103/PhysRevLett.54.1775
©1985 American Physical Society