Precise predictions for Higgs production in models with color-octet scalars
Radja Boughezal, Frank Petriello
TL;DR
This paper calculates precise NNLO QCD corrections for Higgs production via gluon fusion in models with color-octet scalars, significantly reducing theoretical uncertainties and showing potential rate enhancements over the Standard Model.
Contribution
It provides the first detailed NNLO QCD correction computations for Higgs production in models with color-octet scalars, improving prediction accuracy.
Findings
NNLO corrections reduce theoretical uncertainties.
Color-octet scalars can double the Higgs production rate.
Results applicable to Tevatron and LHC energies.
Abstract
We describe an effective-theory computation of the next-to-next-to-leading order (NNLO) QCD corrections to the gluon-fusion production of a Higgs boson in models with massive color-octet scalars in the (8,1)_0 representation. Numerical results are presented for both the Tevatron and the LHC. The estimated theoretical uncertainty is greatly reduced by the inclusion of the NNLO corrections. Color-octet scalars can increase the Standard Model rate by more than a factor of two in allowed regions of parameter space.
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