New Padé approximants built from large-mass and threshold expansions give the two-loop top-quark mass dependence of the gg to ZZ box form factors relevant for off-shell Higgs interference.
Next-to-leading order predictions for WW + 1 jet distributions at the LHC
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abstract
We present numerical results for the production of a $W^+W^-$ pair in association with a jet at the LHC in QCD at next-to-leading order (NLO). We include effects of the decay of the massive vector bosons into leptons with spin correlations and contributions from the third generation of massive quarks. The calculation is performed using a semi-numerical method for the virtual corrections, and is implemented in MCFM. In addition to its importance {\it per se} as a test of the Standard Model, this process is an important background to searches for the Higgs boson and to many new physics searches. As an example, we study the impact of NLO corrections to $W^+W^-+$ jet production on the search for a Higgs boson at the LHC.
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Top quark mass effects in $gg\to ZZ$ at two loops and off-shell Higgs interference
New Padé approximants built from large-mass and threshold expansions give the two-loop top-quark mass dependence of the gg to ZZ box form factors relevant for off-shell Higgs interference.