Limits on anomalous trilinear gauge couplings from WW→e⁺e^-, WW→e^±μ, and WW→μ⁺μ^- events from pp‾ collisions at √s=1.96 TeV

Abstract

Limits are set on anomalous WWγ and WWZ trilinear gauge couplings using W⁺W^-→e⁺ν_ee-ν‾_e, W⁺W^-→e^±ν_eμ±ν _μ, and W⁺W^-→μ⁺νμ ^-ν‾ μ events. The data set was collected by the Run II D0 detector at the Fermilab Tevatron Collider and corresponds to approximately 250 pb^-1 of integrated luminosity at √s=1.96 TeV. Under the assumption that the WWγ couplings are equal to the WWZ couplings and using a form factor scale of Λ=2.0 TeV, the combined 95% C.L. one-dimensional coupling limits from all three channels are -0.32<Δ k <0.45 and -0.29<λ<0.30.