Full one-loop electroweak corrections to e+e- to 3 jets at linear colliders

TL;DR

This paper calculates the complete one-loop electroweak corrections to e+e- to 3 jets across a wide energy range, highlighting their significance for precise alpha_S measurements at future colliders.

Contribution

It provides the first comprehensive analysis of both factorisable and non-factorisable electroweak corrections to three-jet production in electron-positron collisions.

Findings

Electroweak corrections significantly affect jet cross-sections at TeV energies.

Photon bremsstrahlung and virtual corrections are both included and quantified.

Implications for accurate alpha_S extraction from jet data are discussed.

Abstract

We describe the impact of the full one-loop electroweak terms of O(alpha_s alpha_EM^3) entering the electron-positron into three-jet cross-section from sqrt(s)=M_Z to TeV scale energies. We include both factorisable and non-factorisable virtual corrections and photon bremsstrahlung. Their importance for the measurement of alpha_S from jet rates and shape variables is explained qualitatively and illustrated quantitatively, also in presence of b-tagging.