Top-Yukawa contributions to pp→ bbH: Two-loop leading-colour amplitudes

2026/03/31 by Heribertus Bayu Hartanto, René Poncelet, Rene Poncelet
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.21468/scipostphys.21.1.022

openalex publication_date 2026/07/27 · openalex created_date 2026/07/28 · openalex updated_date 2026/07/31

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.

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Related

• Two-loop QCD amplitudes for ttH production from boosted limit
• Two-Loop QCD Helicity Amplitudes for Higgs Production Associated with a Vector Boson through Bottom Quark Annihilation
• Yukawa corrections to Higgs production associated with two bottom quarks at the LHC
• Heavy Higgs boson resonances and their decay into top quarks at the LHC
• Amplitudes for Higgs Bosons plus Four Partons