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arXiv · 2605.28590

Two-loop QCD corrections to $ H \rightarrow b + \bar{b} + g $ at higher powers in the dimensional regulator

Pulak Banerjee·Chinmoy Dey·M. C. Kumar·Vaibhav Pandey·V. Ravindran
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Abstract

We compute the two-loop massless QCD corrections to the amplitude of Higgs boson decay to bottom quark pair and a gluon ($H \rightarrow b + \bar{b} + g$) in the higher powers of the dimensional regularization parameter $\epsilon$. The calculation is performed by projecting the amplitude onto the appropriate Lorentz structures related to the process. We also show the numerical behaviour of the form factors for a few sample phase-space points. These amplitudes are necessary ingredients for computing the three-loop virtual corrections to bottom-quark annihilation to Higgs plus jet production at the hadron collisions.

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Pulak Banerjee, Chinmoy Dey, M. C. Kumar, Vaibhav Pandey, V. Ravindran. 2026-05-27. Two-loop QCD corrections to $ H \rightarrow b + \bar{b} + g $ at higher powers in the dimensional regulator. https://arxiv.org/abs/2605.28590

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