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arXiv · 2512.00156

Three-loop corrections to $gg\to ZH$ in the large top quark mass limit

Joshua Davies·Dominik Grau·Kay Schönwald·Matthias Steinhauser·Daniel Stremmer
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Abstract

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.

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Joshua Davies, Dominik Grau, Kay Schönwald, Matthias Steinhauser, Daniel Stremmer. 2025-11-28. Three-loop corrections to $gg\to ZH$ in the large top quark mass limit. https://arxiv.org/abs/2512.00156

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