Electroweak and QCD corrections to Higgs-boson production in vector-boson fusion at the LHC

TL;DR

This paper calculates next-to-leading order electroweak and QCD corrections for Higgs-boson production via vector-boson fusion at the LHC, revealing significant effects on cross sections and distributions.

Contribution

It provides a comprehensive calculation of electroweak and QCD corrections, including all relevant diagrams and interferences, implemented in a Monte Carlo generator.

Findings

Electroweak corrections are comparable to QCD corrections, around 5-10%.

Corrections cause distortions in differential distributions up to 10%.

Results are applicable for Higgs masses up to 700 GeV.

Abstract

Radiative corrections of strong and electroweak interactions are presented at next-to-leading order for Higgs-boson production in the weak-boson-fusion channel at the LHC. The calculation includes all weak-boson fusion and quark-antiquark annihilation diagrams as well as all related interferences. The electroweak corrections, which also include real corrections from incoming photons and leading heavy-Higgs-boson effects at two-loop order, are of the same size as the QCD corrections, viz. typically at the level of 5-10% for a Higgs-boson mass up to \sim 700 GeV. In general, they do not simply rescale differential distributions, but induce distortions at the level of 10%. The discussed corrections have been implemented in a flexible Monte Carlo event generator.