Next-to-Leading order Higgs + 2 jet production via gluon fusion
John M. Campbell, R. Keith Ellis, Giulia Zanderighi
TL;DR
The work delivers a full NLO QCD calculation for Higgs production with two jets via gluon fusion in the large top-mass limit, implemented in MCFM, and shows that QCD corrections are modest and stabilize many observables compared with LO. By comparing inclusive and weak-boson-fusion cuts, the study clarifies how kinematic selections affect the gluon-fusion background and demonstrates that the azimuthal jet correlation remains a robust discriminator even at NLO. The results quantify residual scale uncertainties and highlight their impact on extracting the Higgs coupling to vector bosons, while validating a semi-numerical method for virtual amplitudes in this challenging process.
Abstract
We present phenomenological results for the production of a Higgs boson in association with two jets at the LHC. The calculation is performed in the limit of large top mass and is accurate to next-to-leading order in the strong coupling, i.e. ${\cal O}(α_s^6)$