Abstract
The WW production is the primary channel to directly probe the triple gauge couplings (TGCs). We analyze the e+e−→ W+W− process at the proposed circular electron–positron collider (CEPC), and find that the anomalous TGCs and relevant dimension six operators can be probed up to the order of 10−4. We also estimate constraints at the 14 TeV (LHC), with both 300 fb−1 and 3000 fb−1 integrated luminosity from the leading lepton pT and azimuthal angle difference Δϕll in the di-lepton channel. The constrain is somewhat weaker, up to the order of 10−3. The limits on the TGCs are complementary to those on the electroweak precision observables and Higgs couplings.
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