Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders

Badger, Simon; Brønnum-Hansen, Christian; Chicherin, Dmitry; Gehrmann, Thomas; Hartanto, Heribertus Bayu; Henn, Johannes; Marcoli, Matteo; Moodie, Ryan; Peraro, Tiziano; Zoia, Simone

Abstract

We present an analytic computation of the gluon-initiated contribution to diphoton plus jet production at hadron colliders up to two loops in QCD. We reconstruct the analytic form of the finite remainders from numerical evaluations over finite fields including all colour contributions. Compact expressions are found using the pentagon function basis. We provide a fast and stable implementation for the colour- and helicity-summed interference between the one-loop and two-loop finite remainders in C++ as part of the NJet library.

Citation

Badger, S., Brønnum-Hansen, C., Chicherin, D., Gehrmann, T., Hartanto, H. B., Henn, J., Marcoli, M., Moodie, R., Peraro, T., & Zoia, S. (2021). Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders. Journal of High Energy Physics, 2021(11), Article 83. https://doi.org/10.1007/jhep11%282021%29083

• Journal Article Type: Article
• Acceptance Date: Oct 11, 2021
• Online Publication Date: Nov 11, 2021
• Publication Date: 2021-11
• Deposit Date: Jan 26, 2022
• Publicly Available Date: Jan 27, 2022
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2021
• Issue: 11
• Article Number: 83
• DOI: https://doi.org/10.1007/jhep11%282021%29083
• Public URL: https://durham-repository.worktribe.com/output/1216212