Measurement of electroweak WZ boson production and search for new physics in WZ $+$ two jets events in pp collisions at $\sqrt{s}=$ 13 TeV

Abstract

A measurement of WZ electroweak (EW) vector boson scattering is presented. The measurement is performed in the leptonic decay modes WZ $\to$ $\ell \nu {\ell }^{\prime }{\ell }^{\prime }$, where $\ell ,{\ell }^{\prime }=$ e, $\mu$. The analysis is based on a data sample of proton-proton collisions at $\sqrt{s}=$ 13 TeV at the LHC collected with the CMS detector and corresponding to an integrated luminosity of 35.9 fb${}^{-1}$. The WZ plus two jet production cross section is measured in fiducial regions with enhanced contributions from EW production and found to be consistent with standard model predictions. The EW WZ production in association with two jets is measured with an observed (expected) significance of 2.2 (2.5) standard deviations. Constraints on charged Higgs boson production and on anomalous quartic gauge couplings in terms of dimension-eight effective field theory operators are also presented.

Replaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-18-001 (CMS Public Pages)

References in corpus (21)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Pileup subtraction using jet areas
• Vector boson pair production at the LHC
• The CMS trigger system
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV
• VBFNLO: A parton level Monte Carlo for processes with electroweak bosons
• ZZ production at hadron colliders in NNLO QCD
• Recola2: REcursive Computation of One-Loop Amplitudes 2
• p p -> j j e+/- mu+/- nu nu and j j e+/- mu-/+ nu nu at O(α_{em}^6) and O(α_{em}^4 α_s^2) for the Study of the Quartic Electroweak Gauge Boson Vertex at LHC
• Measurement of the WZ production cross section in pp collisions at sqrt(s) = 13 TeV
• Measurements of the pp $\to$ WZ inclusive and differential production cross section and constraints on charged anomalous triple gauge couplings at $\sqrt{s}=$ 13 TeV