Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T07: Top and Electroweak Physics
Parton shower effects in $t\bar{t}W^\pm$ production at NLO QCD
M. Kraus
Full text: Not available
Abstract
We present a selection of results from our recent study of $pp\to t\bar{t}W^\pm$
production matched to partons showers at NLO QCD at the LHC. Theoretical
predictions are obtained at perturbative orders $\mathcal{O}(\alpha_s^3\alpha)$
and $\mathcal{O}(\alpha_s\alpha^3)$, where the different contributions are
studied first separately at the inclusive level before being combined within a
realistic two same-sign lepton signature. We investigate in detail uncertainties
originating from missing higher-order corrections and from the parton-shower
matching scheme employed.
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