Kt factorization versus collinear factorization in W+W-pair production at the LHC

In this paper, we calculate the inclusive rate of W+W-pair production through leptonic decay channels W+W-→l+νl+l′-νl′ in the kt-factorization framework. We also consider the exclusive W+W-pair production through the one-loop induced gg→H→W+W-channel that is important for the study of new physics beyond the Standard Model. The results are compared with predictions from the Herwig 7 event generator in the collinear factorization framework and with the experimental data from the ATLAS and the CMS collaborations. It will be shown that our predictions for the W+W-boson pair production signals are in agreement with the experimental data as well as the collinear results.