Two-loop amplitudes for tt¯H production: the quark-initiated Nf-part

A bstract We present numerical results for the two-loop virtual amplitude entering the NNLO corrections to Higgs boson production in association with a top quark pair at the LHC, focusing, as a proof of concept of our method, on the part of the quark-initiated channel containing loops of massless or...

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Bibliographic Details
Published in:The journal of high energy physics 2024-05, Vol.2024 (5), p.13
Main Authors: Agarwal, Bakul, Heinrich, Gudrun, Jones, Stephen P., Kerner, Matthias, Klein, Sven Yannick, Lang, Jannis, Magerya, Vitaly, Olsson, Anton
Format: Article
Language:English
Subjects:
Amplitudes
Approximation
Classical and Quantum Gravitation
Elementary Particles
Higgs bosons
Integrals
Kinematics
Large Hadron Collider
Parity
Particle physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quarks
Regular Article - Theoretical Physics
Relativity Theory
String Theory
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Summary:A bstract We present numerical results for the two-loop virtual amplitude entering the NNLO corrections to Higgs boson production in association with a top quark pair at the LHC, focusing, as a proof of concept of our method, on the part of the quark-initiated channel containing loops of massless or massive quarks. Results for the UV renormalised and IR subtracted two-loop amplitude for each colour structure are given at selected phase-space points and visualised in terms of surfaces as a function of two-dimensional slices of the full phase space.
ISSN:1029-8479
DOI:10.1007/JHEP05(2024)013