NLO electroweak corrections to vector-boson scattering at the LHC

TL;DR

This paper presents NLO electroweak corrections to vector-boson scattering at the LHC, showing significant effects that are crucial for precise experimental comparisons.

Contribution

It provides the first comprehensive NLO electroweak calculation for the full pp→μ+νμ e+νe jj process with realistic event selections.

Findings

NLO electroweak corrections are surprisingly large.

Corrections can exceed NLO QCD effects.

Results are provided at cross-section and distribution levels.

Abstract

Recently, a measurement of the vector-boson scattering process with same-sign W bosons has been reported by the CMS collaboration. Hence it is of prime importance to have precise predictions with next-to-leading order (NLO) accuracy. In these proceedings, we report on a recent NLO electroweak computation to the full process ${\rm p}{\rm p}\to\mu^+\nu_\mu{\rm e}^+\nu_{\rm e}{\rm j}{\rm j}$. As realistic experimental event selections are applied to the final state, it can directly be compared with experimental measurements. This is particularly important as the corrections turn out to be surprisingly large and even exceed the NLO QCD corrections. The NLO electroweak predictions are presented at the cross-section and differential distribution level.