Measurement of trilinear gauge boson couplings from WW + WZ to lnu jj events in pp-bar collisions at sqrt{s}=1.96 TeV

Abstract

We present a direct measurement of trilinear gauge boson couplings at gammaWW and ZWW vertices in WW and WZ events produced in pp-bar collisions at sqrt{s}=1.96 TeV. We consider events with one electron or muon, missing transverse energy, and at least two jets. The data were collected using the D0 detector and correspond to 1.1/fb of integrated luminosity. Considering two different relations between the couplings at the gammaWW and ZWW vertices, we measure these couplings at 68% C.L. to be kappa_{gamma}=1.07^{+0.26}_{-0.29}, lambda =0.00^{+0.06}_{-0.06} and g_{1}^{Z}=1.04^{+0.09}_{-0.09} in a scenario respecting SU(2)_L x U(1)_Y gauge symmetry and kappa =1.04^{+0.11}_{-0.11} and lambda=0.00^{+0.06}_{-0.06} in an "equal couplings" scenario.

14 pages, 7 figures, published in Phys. Rev. D, updated to published version

References in corpus (6)

• First study of the radiation-amplitude zero in Wgamma production and limits on anomalous WWgamma couplings at sqrt(s)=1.96 TeV
• Observation of WZ Production
• First Measurement of ZZ Production in ppbar Collisions at sqrt(s)=1.96 TeV
• Limits on Anomalous Triple Gauge Couplings in ppbar Collisions at sqrt{s}=1.96 TeV
• Measurement of the p\bar{p}\to WZ + X cross section at \sqrt{s}=1.96 TeV and limits on WWZ trilinear gauge couplings
• Evidence of WW+WZ production with lepton + jets final states in proton-antiproton collisions at sqrt(s)=1.96 TeV

Cited by in corpus (13)

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• Limits on anomalous trilinear gauge boson couplings from WW, WZ and Wgamma production in pp-bar collisions at sqrt{s}=1.96 TeV
• W+Jets at CDF: Evidence for Top Quarks
• Effective Field Theory Analysis of New Physics in e+e- -> W+W- at a Linear Collider
• Search for resonant WW and WZ production in ppbar collisions at ?s = 1.96 TeV
• On-shell $WW\gamma$ vertex in the T-Parity and non T-Parity Littlest Higgs model
• $k_t$-factorization vs collinear factorization in $W^{+}{W}^{-}$ pair production at the LHC
• Semileptonic decays of the Higgs boson at the Tevatron
• Review of Physics Results from the Tevatron: Electroweak Physics
• Probing New Physics via pp-> W+W- -> lvjj at the CERN LHC
• QCD and Collider Processes