MEASUREMENT OF GAMMA-B(B)OVER-BAR/GAMMA(HAD) FROM HADRONIC DECAYS OF THE Z
We report a measurement of Rb = ΓbbΓhad from Z → qq events at LEP. Z → bb 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. © 1993.
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Journal article |
Published: |
1993
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