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.
@article{arxiv.2508.09905,
title = {$gg \to ZH$ : updated predictions at NLO QCD},
author = {Benjamin Campillo Aveleira and Long Chen and Joshua Davies and Giuseppe Degrassi and Pier Paolo Giardino and Ramona Gröber and Gudrun Heinrich and Stephen Jones and Matthias Kerner and Johannes Schlenk and Matthias Steinhauser and Marco Vitti},
journal= {arXiv preprint arXiv:2508.09905},
year = {2026}
}
Comments
15 pages, 3 figures, contribution to the LHC Higgs Working Group Report 5; improved discussion of interplay between gluon-initiated and Drell-Yan-like contribution; results unchanged