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The $b$ Forward-backward Asymmetry At LEP

Measurements of the b forward-backward asymmetry at LEP are reviewed. The results are corrected for QED and QCD radiative effects, to extract the electroweak b asymmetry $A^{0,b}_{FB}$ The new procedure implemented for evaluating QCD corrections is shortly discussed. The current LEP average $A^{0,b}...

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Detalles Bibliográficos
Autor principal: Abbaneo, Duccio
Lenguaje:eng
Publicado: Edition Frontieres 1998
Materias:
Acceso en línea:http://cds.cern.ch/record/2630409
Descripción
Sumario:Measurements of the b forward-backward asymmetry at LEP are reviewed. The results are corrected for QED and QCD radiative effects, to extract the electroweak b asymmetry $A^{0,b}_{FB}$ The new procedure implemented for evaluating QCD corrections is shortly discussed. The current LEP average $A^{0,b}_{FB}$ = 0.0998 ± 0.00022 translates to a determination of the effective electroweak mixing angle of $sin^2\theta^{eff}_{W}$ = 0.23213 ± 0.00039.