# Next-to-leading order QCD corrections for single top-quark production in association with two jets

## TL;DR

This paper calculates the next-to-leading order QCD corrections for single top-quark production with two jets at proton-proton colliders, providing improved theoretical predictions and distribution analyses.

## Contribution

It presents the first detailed NLO QCD correction calculations for this process, including distribution results and scale uncertainty analysis.

## Key findings

- QCD corrections increase cross sections by about 28% for top and 22% for anti-top at 13 TeV.
- Theoretical uncertainties are around 5% due to scale variations.
- QCD corrections exhibit non-trivial phase-space dependence.

## Abstract

In this article we calculate the next-to-leading order (NLO) QCD corrections for single on-shell top-quark production in association with two jets at proton-proton colliders. The tW channel is assumed to be measured independently. The QCD corrections to the inclusive cross section are about 28 (22)\% for top (anti-top) quark production at the 13 TeV LHC. Theoretical errors are dominated by scale uncertainties, which are found to be around 5\% at NLO. Results for various kinematical distributions are also provided using a well-motivated dynamical scale. The QCD corrections are found to have a non-trivial dependence on the phase-space.