$W^{\pm }Z$ production at NNLO QCD and NLO EW matched to parton showers with MiNNLO${}_{\mathrm{PS}}$

Abstract

We consider $W^{\pm }Z$ production in hadronic collisions and present high-precision predictions in QCD and electroweak (EW) perturbation theory matched to parton showers. To this end, we match next-to-next-to-leading order QCD corrections to parton showers using the MiNNLO${}_{\mathrm{PS}}$ method and consistently combine them with next-to-leading order EW corrections matched to parton showers. This is the first time such accuracy in the event generation is achieved for any collider process, and we study in detail the impact of different choices in the combination of QCD and EW corrections as well as QCD and QED showers. Spin correlations, interferences and off-shell effects are retained by considering the full leptonic processes $pp\to {\ell }^{+}{\ell }^{-}{\ell }^{\prime \pm }{\nu }_{\ell }^{\prime }$ with ${\ell }^{\prime }\ne \ell$ and ${\ell }^{\prime }=\ell$ without approximations, and the matching to QED radiation is performed preserving the resonance structure of the process. We find that NNLO QCD predictions including QCD and QED shower effects provide a very good approximation in the bulk-region of the phase space, while EW effects become increasingly important in the high-energy tails of kinematic distributions. Our default predictions are in excellent agreement with recent ATLAS data.

32 pages, 8 figures

References in corpus (37)

• An Introduction to PYTHIA 8.2
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• LHAPDF6: parton density access in the LHC precision era
• Tuning PYTHIA 8.1: the Monash 2013 Tune
• Vector boson pair production at the LHC
• How bright is the proton? A precise determination of the photon parton distribution function
• Robust Independent Validation of Experiment and Theory: Rivet version 3
• The Photon Content of the Proton
• Precision electroweak calculation of the production of a high transverse-momentum lepton pair at hadron colliders
• Drell-Yan lepton pair production at NNLO QCD with parton showers
• An NLO+PS generator for $t\bar{t}$ and $Wt$ production and decay including non-resonant and interference effects
• Higgs-boson production through gluon fusion at NNLO QCD with parton showers
• NNLOPS accurate Drell-Yan production
• A Positive-Weight Next-to-Leading-Order Monte Carlo for Z Pair Hadroproduction
• MiNNLO${}_{\mathrm{PS}}$: Optimizing $2\to 1$ hadronic processes
• NNLO QCD+NLO EW with MATRIX+OpenLoops: precise predictions for vector-boson pair production
• Next-to-next-to-leading order event generation for top-quark pair production
• Higgsstrahlung at NNLL${}^{\prime }+$NNLO Matched to Parton Showers in GENEVA
• NLO QCD+EW predictions for HV and HV+jet production including parton-shower effects
• Top-pair production at the LHC with MiNNLO${}_{\mathrm{PS}}$
• ZZ production in gluon fusion at NLO matched to parton-shower
• NLO QCD predictions for doubly-polarized WZ production at the LHC
• NLO QCD+NLO EW corrections to diboson production matched to parton shower
• $W^{+}{W}^{-}$ production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel
• Matching NNLO to parton shower using N${}^3$LL colour-singlet transverse momentum resummation in GENEVA
• Advancing MiNNLO${}_{\mathrm{PS}}$ to diboson processes: $Z\gamma$ production at NNLO+PS
• Precise predictions for photon pair production matched to parton showers in GENEVA
• $ZZ$ production at nNNLO+PS with MiNNLO${}_{\text{PS}}$
• The Zγ transverse-momentum spectrum at NNLO+N3LL
• $W^{+}{W}^{-}$ production at NNLO+PS with MiNNLO${}_{\mathrm{PS}}$
• Next-to-leading-order electroweak corrections to the production of three charged leptons plus missing energy at the LHC
• Next-to-next-to-leading order event generation for $Z$ boson pair production matched to parton shower
• Higher-order EW corrections in ZZ and ZZj production at the LHC
• Four-lepton production in gluon fusion at NLO matched to parton showers
• Anomalous couplings in $Z\gamma$ events at NNLO+PS and improving $\nu \bar{\nu }\gamma$ backgrounds in dark-matter searches
• Next-to-next-to-leading order event generation for $VH$ production with $H\to b\bar{b}$ decay
• NNLO+PS Monte Carlo simulation of photon pair production with MiNNLOPS

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