Polarization observables in WZ production at the 13 TeV LHC: Inclusive case

Abstract

We present a study of the polarization observables of the $W$ and $Z$ bosons in the process $pp\to W^{\pm }Z\to e^{\pm }{\nu }_e{\mu }^{+}{\mu }^{-}$ at the 13 TeV Large Hadron Collider. The calculation is performed at next-to-leading order, including the full QCD corrections as well as the electroweak corrections, the latter being calculated in the double-pole approximation. The results are presented in the helicity coordinate system adopted by ATLAS and for different inclusive cuts on the di-muon invariant mass. We define left-right charge asymmetries related to the polarization fractions between the $W^{+}Z$ and $W^{-}Z$ channels and we find that these asymmetries are large and sensitive to higher-order effects. Similar findings are also presented for charge asymmetries related to a P-even angular coefficient.

arXiv comment15 pages, 2 figures, 8 tables; minor improvements, matches published version

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• Breaking down the entire spectrum of spin correlations of a pair of particles involving fermions and gauge bosons
• Different polarization definitions in same-sign $WW$ scattering at the LHC
• Vector Boson Scattering Processes: Status and Prospects
• One-loop renormalization of VBS with the electroweak chiral Lagrangian in covariant gauges
• NNLO QCD study of polarised $W^{+}{W}^{-}$ production at the LHC
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• Polarised W+j production at the LHC: a study at NNLO QCD accuracy
• Amplitude-assisted tagging of longitudinally polarised bosons using wide neural networks
• NLO EW and QCD corrections to polarized ZZ production in the four-charged-lepton channel at the LHC