Increasing the precision for $Z$ production at colliders: mixed QCD-QED effects

TL;DR

This paper discusses recent advances in incorporating mixed QCD-QED corrections into collider observable calculations, specifically extending $q_T$-resummation for simultaneous gluon and photon emissions in $Z$ production.

Contribution

It introduces a new formalism for $q_T$-resummation that handles combined gluon and photon emissions, improving precision in collider predictions.

Findings

Extended $q_T$-resummation formalism for mixed QCD-QED effects.

Applied formalism to $Z$ production at colliders.

Discussed potential extensions to complex final states.

Abstract

In this talk, we describe the recent progress on the inclusion of mixed QCD-QED corrections for collider observables. In particular, we developed a formalism to extend $q_T$-resummation to deal with simultaneous emission of gluons and photons. We applied it to $Z$ production at colliders, and briefly discuss extensions to more complicated final states.