Mixed QCD-EW corrections to Drell-Yan at the LHC

TL;DR

This paper presents the calculation of mixed QCD-EW corrections to Drell-Yan lepton-pair production at the LHC, showing they are significant and comparable to NNLO QCD corrections, with new results valid across the full invariant mass range.

Contribution

First complete mixed QCD-EW correction results for Drell-Yan at the LHC, including the entire dilepton invariant mass spectrum.

Findings

Mixed corrections are sizable and comparable to NNLO QCD corrections.

First results valid across the entire dilepton invariant mass range.

Improved precision for Drell-Yan process predictions.

Abstract

We discuss recent theoretical results for the complete mixed QCD-EW corrections to lepton-pair production via the Drell-Yan mechanism, a cornerstone process for the precision physics programme at the LHC. We present results for fiducial cross sections and differential distributions to both the neutral current- and charged current- process. We show that the mixed corrections are relatively large and of similar size to the NNLO QCD ones at central scales. In particular, for the neutral current case, we report the first result at this order that is valid in the entire range of dilepton invariant masses.