Parton shower effects in ttW^± production at NLO QCD

2021/10/24 by Kraus, Manfred
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2110.12512

Abstract

We present a selection of results from our recent study of pp→ ttW^± production matched to partons showers at NLO QCD at the LHC. Theoretical predictions are obtained at perturbative orders O(α_s³α) and O(α_sα³), 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.

Related

• Modelling uncertainties of ttW in multi-lepton channel
• Anomalous coupling, top-mass and parton-shower effects in W⁺W^- production
• Matching NLO computations and parton showers in QCD
• NLO QCD parton shower matching for p p → e⁺ ν_e μ^- ν_μ γ+ X
• Modelling top-quark decays in tttt production at the LHC