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arXiv · 2508.09905

$gg \to ZH$ : updated predictions at NLO QCD

Benjamin Campillo Aveleira·Long Chen·Joshua Davies·Giuseppe Degrassi·Pier Paolo Giardino·Ramona Gröber·Gudrun Heinrich·Stephen Jones·Matthias Kerner·Johannes Schlenk·Matthias Steinhauser·Marco Vitti
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Abstract

We present state-of-the-art predictions for the inclusive cross section of gluon-initiated $ZH$ production, following the recommendations of the LHC Higgs Working Group. In particular, we include NLO QCD corrections, where the virtual corrections are obtained from the combination of a forward expansion and a high-energy expansion, and the real corrections are exact. The expanded results for the virtual corrections are compared in detail to full numerical results. The updated predictions show a reduction of the scale uncertainties to the level of 15%, and they include an estimate of the top-mass-scheme uncertainty.

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Benjamin Campillo Aveleira, Long Chen, Joshua Davies, Giuseppe Degrassi, Pier Paolo Giardino, Ramona Gröber, Gudrun Heinrich, Stephen Jones, Matthias Kerner, Johannes Schlenk, Matthias Steinhauser, Marco Vitti. 2025-08-13. $gg \to ZH$ : updated predictions at NLO QCD. https://doi.org/10.21468/scipostphyscommrep.16

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