Top-Yukawa contributions to $pp\to b\bar{b}H$: Two-loop leading-colour amplitudes
Abstract
We derive two-loop scattering amplitudes for bottom-quark pair production in association with a Higgs boson at the LHC, focusing on terms proportional to the top-quark Yukawa coupling. We treat the bottom quark as a massless parton and employ both the leading-colour and heavy-top-quark approximations. The finite remainder of the two-loop amplitude is expressed in terms of one-mass pentagon functions, and the corresponding rational coefficients are reconstructed analytically from evaluations over finite fields. The scattering processes considered in this work also constitute a subset of Higgs+2-jet production at the LHC in the heavy-top-quark approximation.
Fields of Study & Subjects
Particle physics theoretical and experimental studies
High-Energy Particle Collisions Research
Quantum Chromodynamics and Particle Interactions
Publication details
- Journal / source
- SciPost Physics
- Publisher
- Stichting SciPost
- Volume
- 21
- Issue
- 1
- Publication date
- 27 July 2026
- Language
- EN