Next-to-Leading-Order QCD Corrections to Higgs Boson Production Plus Three Jets in Gluon Fusion

Abstract

We report on the calculation of the cross section for Higgs boson production in association with three jets via gluon fusion, at next-to-leading-order (NLO) accuracy in QCD, in the infinite top-mass approximation. After including the complete NLO QCD corrections, we observe a strong reduction in the scale dependence of the result, and an increased steepness in the transverse momentum distributions of both the Higgs and the leading jets. The results are obtained with the combined use of GoSam, Sherpa, and the MadDipole/MadEvent framework.

Fiducial cross sections for Higgs boson production in association with a jet at next-to-next-to-leading order in QCD

“…However, given the availability of the NNLO QCD computations for fiducial cross sections, no extrapolations should be required. As an illustration we computed the ratio of fiducial cross sections for pp → H þ j → γγ þ j at the 8 TeV LHC and the pp → H þ j → WW Ã þ j → e þ μ − νν þ j at the 13 …”

“…[7,8] with the results of the fiducial measurements is also not possible. When the Higgs boson is produced in association with two and three jets, the NLO QCD computations provide the state-of-the-art results [11][12][13][14]. In those NLO QCD computations decays of the Higgs bosons are routinely taken into account.…”

Ninja: Automated integrand reduction via Laurent expansion for one-loop amplitudes

“…This higher-rank decomposition has been used for the computation of NLO corrections to Higgs-boson production in association with two [52] and three [27,53] jets. Other libraries which implement the reduction of higher-rank integrals are Xsamurai [54], which extends the more traditional integrand reduction algorithm of Samurai, and Golem95 [55][56][57].…”

Soft evolution of multi-jet final states

“…sections are now available for pure QCD processes and electroweak (W ± , Z and Higgs) boson production in association with up to five jets [18][19][20][21].…”