We have searched for decays of the τ lepton into seven or more charged particles, using data collected with the OPAL detector from 1990 to 1995 in e+e- collisions at √s ≈ Mz. No candidate events were found and an upper limit on the branching ratio for T decays into seven charged particles of 1.8 × 10-5 at the 95% confidence level was determined.
|Number of pages||10|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - 3 Jul 1997|
ASJC Scopus subject areas
- Nuclear and High Energy Physics