We report a measurement of R(b) = GAMMA(bbBAR)GAMMA(had) from Z --> qqBAR events at LEP. Z --> bbBAR 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 R(b) is 0.222 +/- 0.003 +/- 0.007.
Measurement of Gamma-b(b)over-bar/gamma(had) From Hadronic Decays of the Z
SANTOCCHIA, Attilio;FIANDRINI, Emanuele;BERTUCCI, Bruna;PAULUZZI, Michele
1993
Abstract
We report a measurement of R(b) = GAMMA(bbBAR)GAMMA(had) from Z --> qqBAR events at LEP. Z --> bbBAR 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 R(b) is 0.222 +/- 0.003 +/- 0.007.File in questo prodotto:
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