$gg\to ZZ$: analytic two-loop results for the low- and high-energy regions

David Wellmann; Go Mishima; Joshua Davies; Matthias Steinhauser

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arxiv 2002.05558 v1 pith:RQW32JLI submitted 2020-02-13 hep-ph

ggto ZZ: analytic two-loop results for the low- and high-energy regions

Joshua Davies , Go Mishima , Matthias Steinhauser , David Wellmann This is my paper

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keywords high-energyvirtualanalyticcorrectionsexpansionlow-next-to-leadingorder

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We compute next-to-leading order virtual two-loop corrections to the process $gg\to ZZ$ in the low- and high-energy limits, considering the contributions with virtual top quarks. Analytic results for all 20 form factors are presented including expansion terms up to $1/m_t^{12}$ and $m_t^{32}$. We use a Pad\'e approximation procedure to extend the radius of convergence of the high-energy expansion and apply this approach to the fini\ te virtual next-to-leading order corrections.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

ggxy: Fast and flexible NLO QCD corrections to gluon-initiated processes
hep-ph 2026-07 conditional novelty 5.0

The ggxy library implements NLO QCD corrections for gg→ZH and gg→ZZ with full top-quark mass dependence using high-energy and forward-limit expansions, validated against existing results and interfaced to POWHEG for p...