One-loop Electro-Weak Corrections to Three-jet Observables of b-quarks in e+e- Annihilations

Details One-loop Electro-Weak Corrections to Three-jet Observables of b-quarks in e+e- Annihilations One-loop Electro-Weak Corrections to Three-jet Observables of b-quarks in e+e- Annihilations

2008-11-28

arxiv.org/abs/0811.4758v1

Eur.Phys.J.C62:355-364,2009; Erratum-ibid.C62:453,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 20 figures

Scientific paper

10.1140/epjc/s10052-009-1035-x 1

We compute the full one-loop EW contributions of O(\alpha_S alpha_EM^3) entering the electron-positron into two b-quarks and one gluon cross section at the Z peak and LC energies. We include both factorisable and non-factorisable virtual corrections, photon bremsstrahlung but not the real emission of W^\pm and Z bosons. Their importance for the measurement of alpha_S from jet rates and shape variables is explained qualitatively and illustrated quantitatively. Their impact on the forward-backward asymmetry is also analysed.

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