Search for lepton flavour violation in Z0 decays
Abstract
We have searched for lepton flavour violation in Z0 boson decays into lepton pairs, Z0-->μτ, Z0-->eτ, and Z0-->eμ. The data sample is based on an integrated luminosity of 10.4 pb-1 corresponding to 370 000 Z0's produced. We obtain upper limits on the branching ratios of 4.8×10-5 for the μτ, 3.4×10-5 for the eτ and 2.4×10-5 for the eμ decay modes at the 95% confidence level.
Supported by the German Bundesministerium für Forschung und Technologie.- Publication:
-
Physics Letters B
- Pub Date:
- November 1991
- DOI:
- 10.1016/0370-2693(91)90117-9
- Bibcode:
- 1991PhLB..271..453A