The WW production is the primary channel to directly probe the triple gauge couplings. We analyze the e+e−→W+W− process at the proposed Circular Electron-Positron Collider (CEPC), and find that the anomalous triple gauge couplings 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 triple gauge couplings are complementary to those on the electroweak precision observables and Higgs couplings.
@article{arxiv.1612.03888,
title = {Triple Gauge Couplings at Future Hadron and Lepton Colliders},
author = {Ligong Bian and Jing Shu and Yongchao Zhang},
journal= {arXiv preprint arXiv:1612.03888},
year = {2016}
}
Comments
6 pages, presentation at the IAS Program on HEP, January 2016, Hong Kong, based on 1507.02238