Search for triboson $W^{\pm }{W}^{\pm }{W}^{\mp }$ production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

Abstract

This paper reports a search for triboson $W^{\pm }{W}^{\pm }{W}^{\mp }$ production in two decay channels ($W^{\pm }{W}^{\pm }{W}^{\mp }\to {\ell }^{\pm }\nu {\ell }^{\pm }\nu {\ell }^{\mp }\nu$ and $W^{\pm }{W}^{\pm }{W}^{\mp }\to {\ell }^{\pm }\nu {\ell }^{\pm }\nu jj$ with $\ell =e,\mu$) in proton-proton collision data corresponding to an integrated luminosity of 20.3 fb${}^{-1}$ at a centre-of-mass energy of 8 TeV with the ATLAS detector at the Large Hadron Collider. Events with exactly three charged leptons, or two leptons with the same electric charge in association with two jets, are selected. The total number of events observed in data is consistent with the Standard Model (SM) predictions. The observed 95 % confidence level upper limit on the SM $W^{\pm }{W}^{\pm }{W}^{\mp }$ production cross section is found to be 730 fb with an expected limit of 560 fb in the absence of SM $W^{\pm }{W}^{\pm }{W}^{\mp }$ production. Limits are also set on $WWWW$ anomalous quartic gauge couplings.

Comments: 39 pages in total, author list starting page 23, 5 figures, 7 tables, submitted to European Physics Journal C, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2015-07/

References in corpus (20)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Parton distributions for the LHC
• Big-Bang Nucleosynthesis
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• VBFNLO: A parton level Monte Carlo for processes with electroweak bosons
• Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC
• Jet energy measurement and its systematic uncertainty in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
• The PDF4LHC Working Group Interim Report
• Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data
• 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
• Evidence for Electroweak Production of $W^{\pm }{W}^{\pm }jj$ in $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector
• Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets
• NLO QCD corrections to tri-boson production
• QCD corrections to charged triple vector boson production with leptonic decay
• A search for WW gamma and WZ gamma production and constraints on anomalous quartic gauge couplings in pp collisions at sqrt(s) = 8 TeV
• Search for anomalous electroweak production of $WW/WZ$ in association with a high-mass dijet system in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Improving estimates of the number of fake leptons and other mis-reconstructed objects in hadron collider events: BoB's your UNCLE. (Previously "The Matrix Method Reloaded")

Cited by in corpus (11)

• Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
• Observation of the production of three massive gauge bosons at $\sqrt{s}=$ 13 TeV
• Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Testing new physics models with global comparisons to collider measurements: the Contur toolkit
• Study of $WW\gamma$ and $WZ\gamma$ production in $pp$ collisions at $\sqrt{s}=8$ TeV and search for anomalous quartic gauge couplings with the ATLAS experiment
• Observation of $WWW$ Production in $pp$ Collisions at $\sqrt{s}=13$ TeV with the ATLAS Detector
• Testing the Scalar Triplet Solution to CDF's Fat $W$ Problem at the LHC
• $WW\gamma$ production at hadron colliders with NLO QCD+EW corrections and parton shower effects
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• NLO electroweak and QCD corrections to the production of a photon with three charged lepton plus missing energy at the LHC
• Sensitivities to New Resonance Couplings to $W$-Bosons at the LHC