Three-loop corrections to gg → ZH in the large top quark mass limit
A bstract We compute three-loop virtual corrections to the associated production of a Higgs boson with a Z boson in the large- m t limit. We describe in detail the application of the asymptotic expansion and provide, for all form factors, analytic results for the first three terms in the 1/ m t expansion. We also provide numerical routines implemented in the C++ library ggxy.
Authors
- Kay Schönwald (ORCID: https://orcid.org/0000-0002-2726-5434)
- Dominik Grau
- Joshua Davies
- Daniel Stremmer
- Matthias Steinhauser
Institutions
- Karlsruhe Institute of Technology (DE)
- University of Liverpool (GB)
- University of Zurich (CH)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2026-02-18
- DOI
- https://doi.org/10.1007/jhep02(2026)191
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- European Commission
- Deutsche Forschungsgemeinschaft
- Science and Technology Facilities Council