Strong and electroweak NLO corrections to Higgs-boson production in vector-boson fusion at the LHC

TL;DR

This paper calculates and analyzes the combined strong and electroweak NLO corrections to Higgs boson production via vector-boson fusion at the LHC, highlighting their significant impact on distributions and providing a Monte Carlo implementation.

Contribution

It provides a comprehensive calculation of NLO corrections including all relevant diagrams and interferences, and introduces a Monte Carlo tool for accurate Higgs production simulations.

Findings

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

Corrections induce approximately 10% distortions in differential distributions.

Results include new distribution data for a 200 GeV Higgs boson.

Abstract

We present results on the strong and electroweak NLO corrections to the production of a Higgs boson plus two hard jets via weak interactions at the LHC. The calculation includes all weak-boson fusion and quark-antiquark annihilation diagrams as well as all related interferences. We discuss corrections of different origin (QCD corrections of vector-boson-fusion type and interferences, electroweak corrections induced by quark or photonic initial states, heavy-Higgs-boson effects, etc.) and give some new results for distributions for a Higgs-boson mass of 200 GeV. The electroweak corrections 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.