Electroweak corrections to three-jet production in electron-positron annihilation

Ansgar Denner, Stefan Dittmaier, Thomas Gehrmann, Christian Kurz

Published 2009-06-01, updated 2009-08-03Version 2

We compute the electroweak ${\cal O}(\alpha^3\alpha_s)$ corrections to three-jet production and related event-shape observables at electron-positron colliders. We properly account for the experimental photon isolation criteria and for the corrections to the total hadronic cross section. Corrections to the three-jet rate and to normalised event-shape distributions turn out to be at the few-per-cent level.