QCD corrections to H -> gg in FDR

Abstract

I apply FDR -- a recently introduced Four Dimensional Regularization approach to quantum field theories -- to compute the NLO QCD corrections to H -> gg in the large top mass limit. The calculation involves all key ingredients of massless QCD, namely ultraviolet, infrared and collinear divergences, besides alpha_s renormalization. I show in detail how the correct result emerges in FDR, and discuss the translation rules to dimensional regularization.

15 pages, 2 figures

References in corpus (6)

• An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
• A novel subtraction scheme for double-real radiation at NNLO
• A four-dimensional approach to quantum field theories
• Gauge invariance at work in FDR: H -> gamma gamma
• Primary Feynman rules to calculate the epsilon-dimensional integrand of any 1-loop amplitude
• On the predictivity of the non-renormalizable quantum field theories

Cited by in corpus (15)

• To $d$, or not to $d$: Recent developments and comparisons of regularization schemes
• May the four be with you: Novel IR-subtraction methods to tackle NNLO calculations
• FDR, an easier way to NNLO calculations: a two-loop case study
• Dimensional regularization vs methods in fixed dimension with and without ${\gamma }_5$
• Two-loop off-shell QCD amplitudes in FDR
• Computation of $H\to gg$ in FDH and DRED: renormalization, operator mixing, and explicit two-loop results
• On the predictivity of the non-renormalizable quantum field theories
• NNLO final-state quark-pair corrections in four dimensions
• Direct numerical evaluation of multi-loop integrals without contour deformation
• Integration-by-parts identities in FDR
• Higgs boson decay into gluons in a 4D regularization: IR cancellation without evanescent fields to NLO
• Numerical Evaluation of Two-Loop Integrals in FDR
• Infrared Subtleties and Chiral Vertices at NLO: An Implicit Regularization Analysis
• Monte Carlo evaluation of divergent one-loop integrals without contour deformation
• Matching high-energy electroweak fermion loops onto the Fermi theory without higher dimensional operators