Abstract
We present a calculation of the NLO QCD corrections for Higgs-boson pair production in gluon fusion including effects of anomalous couplings within Standard Model Effective Field Theory (SMEFT). We study effects of different truncation options of the EFT expansion in 1/Λ and of double operator insertions, both at total cross-section level as well as for the distribution of the invariant mass of the Higgs-boson pair, at \( \sqrt{s} \) = 13 TeV. The NLO corrections are implemented in the generator ggHH_SMEFT in the Powheg-Box-V2 framework.
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16 October 2023
An Erratum to this paper has been published: https://doi.org/10.1007/JHEP10(2023)086
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Heinrich, G., Lang, J. & Scyboz, L. SMEFT predictions for gg → hh at full NLO QCD and truncation uncertainties. J. High Energ. Phys. 2022, 79 (2022). https://doi.org/10.1007/JHEP08(2022)079
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DOI: https://doi.org/10.1007/JHEP08(2022)079