NLO QCD corrections to the production of Higgs plus two jets at the LHC

Abstract

We present the calculation of the NLO QCD corrections to the associated production of a Higgs boson and two jets, in the infinite top-mass limit. We discuss the technical details of the computation and we show the numerical impact of the radiative corrections on several observables at the LHC. The results are obtained by using a fully automated framework for fixed order NLO QCD calculations based on the interplay of the packages GoSam and Sherpa. The evaluation of the virtual corrections constitutes an application of the d-dimensional integrand-level reduction to theories with higher dimensional operators. We also present first results for the one-loop matrix elements of the partonic processes with a quark-pair in the final state, which enter the hadronic production of a Higgs boson together with three jets in the infinite top-mass approximation.

Higgs boson CP-properties of the gluonic contributions in Higgs plus three jet production via gluon fusion at the LHC

“…Several analyses [33][34][35] demonstrated that the φ jj -correlations survive with minimal modifications if the hard radiation is separated from the parton shower and the hadronization effects. Similar conclusions were obtained by a parton level calculation of the GF induced Higgs plus two jet production process at NLO [36,37] within the framework of the heavy top-quark effective theory.…”

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

“…[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].…”