One-loop QCD amplitudes for vector-boson-fusion Higgs-boson production to higher orders in $ε$
Year: 2026
Type: preprint
Abstract: We consider one-loop QCD corrections to Higgs-boson production via vector-boson fusion at hadron colliders. As an input for future exact NNLO computations, we derive the one-loop helicity amplitudes to higher orders in the dimensional regulator. We present a direct calculation of the amplitudes with spinor-helicity techniques and different $γ_5$ schemes. In addition, we compare this approach to a projector-based calculation. In order to derive analytical results to higher orders in $ε$, we calculate the pentagon master integrals by the method of $ε$-factorised differential equations and express them in terms of an algebraically independent set of basis functions.
Source: arXiv (Cornell University)
Institution: University of Regensburg
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7214954461