Two-loop amplitudes for t t ¯ H production: the quark-initiated N f -part

Agarwal, Bakul; Heinrich, Gudrun; Jones, Stephen P.; Kerner, Matthias; Klein, Sven Yannick; Lang, Jannis; Magerya, Vitaly; Olsson, Anton

Abstract

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.

Citation

Agarwal, B., Heinrich, G., Jones, S. P., Kerner, M., Klein, S. Y., Lang, J., …Olsson, A. (2024). Two-loop amplitudes for t t ¯ H production: the quark-initiated N f -part. Journal of High Energy Physics, 2024(5), Article 13. https://doi.org/10.1007/jhep05%282024%29013

• Journal Article Type: Article
• Acceptance Date: Mar 22, 2024
• Online Publication Date: May 2, 2024
• Publication Date: 2024-05
• Deposit Date: May 17, 2024
• Publicly Available Date: May 17, 2024
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2024
• Issue: 5
• Article Number: 13
• DOI: https://doi.org/10.1007/jhep05%282024%29013
• Keywords: Higher-Order Perturbative Calculations, Top Quark
• Public URL: https://durham-repository.worktribe.com/output/2437329