Complete Next-to-Leading Order QCD Corrections to ZZ Production in Gluon Fusion.

Agarwal, Bakul; Jones, Stephen; Kerner, Matthias; von Manteuffel, Andreas

Abstract

We calculate the complete next-to-leading order (NLO) QCD corrections to loop-induced gg→ZZ production including full top-quark mass effects. The two-loop virtual corrections are obtained by combining analytic results for the massless, Higgs-mediated, and one-loop factorizable contributions with numerically computed amplitudes containing the top-quark mass. We show that the choice of subtraction scheme for the virtual contribution impacts the precision with which the virtual contribution must be evaluated in order to obtain sufficiently precise phenomenological predictions. For direct production through a massive top-quark loop, we observe that the relative NLO corrections are large. The direct massive and Higgs-mediated contributions individually increase relative to the massless production at high diboson invariant mass, but interfere destructively with each other. At the Large Hadron Collider, the NLO corrections to the gluon channel give a sizable contribution to the pp→ZZ+X cross section at N^{3}LO.

Citation

Agarwal, B., Jones, S., Kerner, M., & von Manteuffel, A. (2025). Complete Next-to-Leading Order QCD Corrections to ZZ Production in Gluon Fusion. Physical Review Letters, 134(3), Article 031901. https://doi.org/10.1103/PhysRevLett.134.031901

• Journal Article Type: Article
• Acceptance Date: Dec 20, 2024
• Online Publication Date: Jan 22, 2025
• Publication Date: Jan 22, 2025
• Deposit Date: Mar 5, 2025
• Publicly Available Date: Mar 5, 2025
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 134
• Issue: 3
• Article Number: 031901
• DOI: https://doi.org/10.1103/PhysRevLett.134.031901
• Public URL: https://durham-repository.worktribe.com/output/3561740