Measurement of $W^{+}{W}^{-}$ production in association with one jet in proton--proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

Abstract

The production of $W$ boson pairs in association with one jet in $pp$ collisions at $\sqrt{s}=8$ TeV is studied using data corresponding to an integrated luminosity of 20.3 fb${}^{-1}$ collected by the ATLAS detector during 2012 at the CERN Large Hadron Collider. The cross section is measured in a fiducial phase-space region defined by the presence of exactly one electron and one muon, missing transverse momentum and exactly one jet with a transverse momentum above 25 GeV and a pseudorapidity of $|\eta |<4.5$. The leptons are required to have opposite electric charge and to pass transverse momentum and pseudorapidity requirements. The fiducial cross section is found to be ${\sigma }_{WW}^{\mathrm{fid},1\text{-}\mathrm{jet}}=136\pm 6($stat$)\pm 14($syst$)\pm 3($lumi$)$ fb. In combination with a previous measurement restricted to leptonic final states with no associated jets, the fiducial cross section of $WW$ production with zero or one jet is measured to be ${\sigma }_{WW}^{\mathrm{fid},\le 1\text{-}\mathrm{jet}}=511\pm 9($stat$)\pm 26($syst$)\pm 10($lumi$)$ fb. The ratio of fiducial cross sections in final states with one and zero jets is determined to be $0.36\pm 0.05$. Finally, a total cross section extrapolated from the fiducial measurement of $WW$ production with zero or one associated jet is reported. The measurements are compared to theoretical predictions and found in good agreement.

arXiv comment17 pages plus author list (34 pages total), 2 figures, 2 tables, final version published in PLB, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2015-24/

References in corpus (50)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• A Brief Introduction to PYTHIA 8.1
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• High-Energy-Physics Event Generation with PYTHIA 6.1
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• The ATLAS Simulation Infrastructure
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• PHOTOS Monte Carlo: a precision tool for QED corrections in Z and W decays
• Pileup subtraction using jet areas
• An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Higgs boson gluon-fusion production in N3LO QCD
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• Multiparton Interactions in Photoproduction at HERA
• NNLL resummation for s-channel single top quark production
• Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC
• The PDF4LHC Working Group Interim Recommendations
• NLO vector-boson production matched with shower in POWHEG
• Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC
• Performance of $b$-Jet Identification in the ATLAS Experiment
• ZZ production at hadron colliders in NNLO QCD
• Jet energy measurement and its systematic uncertainty in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Performance of missing transverse momentum reconstruction in proton-proton collisions at 7 TeV with ATLAS
• $W^{+}{W}^{-}$ production at hadron colliders in NNLO QCD
• Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data
• W+W-, WZ and ZZ production in the POWHEG BOX
• Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
• The RooFit toolkit for data modeling
• Theory Uncertainties for Higgs and Other Searches Using Jet Bins
• Observation and measurement of Higgs boson decays to $W{W}^{\ast }$ with the ATLAS detector
• $W^{\pm }Z$ production at the LHC: fiducial cross sections and distributions in NNLO QCD
• The Monte Carlo Event Generator AcerMC 2.0 with Interfaces to PYTHIA 6.2 and HERWIG 6.5
• ZZ production at the LHC: fiducial cross sections and distributions in NNLO QCD
• Gluon-induced W-boson pair production at the LHC
• QCD corrections to $W^{+}{W}^{-}$ production through gluon fusion
• Measurement of the W+ W- cross section in pp collisions at sqrt(s) = 8 TeV and limits on anomalous gauge couplings
• Measurement of total and differential $W^{+}{W}^{-}$ production cross sections in proton-proton collisions at $\sqrt{s}=$ 8 TeV with the ATLAS detector and limits on anomalous triple-gauge-boson couplings
• Performance of the ATLAS muon trigger in pp collisions at $\sqrt{s}=8$ TeV
• Transverse momentum resummation effects in W^+W^- measurements
• NLO QCD corrections to pp/ppbar --> WW+jet+X including leptonic W-boson decays
• Wgamma and Zgamma production at the LHC in NNLO QCD
• Next-to-leading order predictions for WW+jet production
• $W^{+}{W}^{-}$ + 3 Jet Production at the Large Hadron Collider in NLO QCD
• Measurement of the production and differential cross sections of $W^{+}{W}^{-}$ bosons in association with jets in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV

Cited by in corpus (7)

• Fully differential NNLO computations with MATRIX
• Multi-Boson Interactions at the LHC
• Measurement of fiducial and differential $W^{+}{W}^{-}$ production cross-sections at $\sqrt{s}=$13 TeV with the ATLAS detector
• Les Houches 2021: Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Measurements of $W^{+}{W}^{-}+\ge 1$jet production cross-sections in $pp$ collisions at $\sqrt{s}=13$TeV with the ATLAS detector
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• Measurement of inclusive and differential cross sections for W${}^{+}$W${}^{-}$ production in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV