Higgs boson production at the LHC: fast and precise predictions in QCD at higher orders

We present a new numerical program, HTurbo, which provides fast and numerically precise predictions for Higgs boson production cross sections. The present version of the code implements the perturbative QCD expansion up to the next-to-next-to-leading order also combined with the resummation of the large logarithmic corrections at small transverse momenta up to next-to-next-to-leading logarithmic accuracy and it includes the Higgs boson production through gluon fusion and decay in two photons with the full dependence on the final-state kinematics. Arbitrary kinematical cuts can be applied to the final states in order to obtain fiducial cross sections and associated kinematical distributions. We present a benchmark comparison with the predictions obtained with the numerical programs HRes and HNNLO programs for which HTurbo represents an improved reimplementation.

Automated summary

We introduce a new numerical program, HTurbo, which accurately predicts the production cross sections of Higgs bosons in a fast and precise manner. The program implements the perturbative QCD expansion and resummation of large logarithmic corrections, and includes the production and decay of Higgs bosons through gluon fusion and two-photon processes with complete dependence on the final-state kinematics. We benchmark our predictions against other numerical programs, HRes and HNNLO, and show that HTurbo is an improved reimplementation.