Resonance-improved parton-shower matching for the Drell-Yan process including electroweak corrections

Abstract

We use the POWHEG method to perform parton-shower matching for Drell-Yan production of W and Z bosons at the LHC at NLO QCD and NLO electroweak accuracy. In particular, we investigate an improved treatment of the vector-boson resonances within the POWHEG method. We employ an independent implementation of the POWHEG method and compare to earlier results within the POWHEGBOX. On the technical side, we provide the FKS formalism for photon-radiation off fermions within mass regularization.

29 pages, 6 figures, extended discussions; version published in JHEP

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• Precision Measurement of the W-Boson Mass: Theoretical Contributions and Uncertainties
• An event generator for same-sign W-boson scattering at the LHC including electroweak corrections
• NLO QCD+NLO EW corrections to diboson production matched to parton shower
• Accurate simulation of W, Z and Higgs boson decays in Sherpa
• Automated evaluation of electroweak Sudakov logarithms in Sherpa
• Vector Bosons and Jets in Proton Collisions
• On electroweak corrections to neutral current Drell-Yan with the POWHEG BOX
• Photon splitting corrections to soft-photon resummation