Measurement of {Γ b overlineb}/{Γ had} from hadronic decays of the Z
Abstract
We report a measurement of R b = Γ b overlinebΓ had from Z → q overlineq events at LEP. Z → b overlineb events are identified using a multidimensional analysis based on a neural network approach. We obtain 60% sample purity with an efficiency of 35%. Our measured value of Rb is 0.222±0.003±0.007.
- Publication:
-
Physics Letters B
- Pub Date:
- June 1993
- DOI:
- 10.1016/0370-2693(93)90214-3
- Bibcode:
- 1993PhLB..307..237A