# Top-quark pair hadroproduction in association with a heavy boson at NLO+NNLL including EW corrections

## TL;DR

This paper provides precise theoretical predictions for top-quark pair production with a heavy boson at the LHC, including NLO electroweak and QCD corrections and soft gluon resummation, aiding experimental analyses.

## Contribution

It offers the first comprehensive NLO+NNLL predictions for associated top-quark pair production with electroweak corrections at 13 TeV LHC.

## Key findings

- Predicted total cross sections and differential distributions with high precision.
- Quantified the impact of electroweak and QCD corrections on observables.
- Analyzed the residual uncertainties from scale and PDF choices.

## Abstract

This work studies the associated production of a top-quark pair with a $W$, $Z$, or Higgs boson at the LHC. Predictions for the total cross sections as well as for several differential distributions of the massive particles in the final state are provided. These predictions, valid for the LHC operating at $13$ TeV, include without any approximation all the NLO electroweak and QCD contributions of $\mathcal{O}(\alpha_s^{i} \alpha^{j+1})$ with $i+j=2,3$. In addition, the predictions presented here improve upon the NLO QCD results by adding the effects of soft gluon emission corrections resummed to next-to-next-to-leading logarithmic accuracy. The residual dependence of the predictions on scale and PDF choices is analyzed.