Abstract
We compute two-loop electroweak corrections to Higgs boson pair and Higgs plus jet production, taking into account all sectors of the Standard Model. All diagrams with virtual top quarks are computed in an expansion for large top quark mass up to order 1/\( {m}_t^8 \) or more. We present analytic results for the form factors and discuss the convergence properties. For the process gg → gH we also consider QCD corrections in the large-mt limit.
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Acknowledgments
This research was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under grant 396021762 — TRR 257 “Particle Physics Phenomenology after the Higgs Discovery” and has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme grant agreement 101019620 (ERC Advanced Grant TOPUP). The work of JD was supported by the Science and Technology Facilities Council (STFC) under the Consolidated Grant ST/T00102X/1. We thank Christian Sturm for many useful discussions in connection to the renormalization of the Higgs-gluon interactions. We also thank Martin Lang for support in connection to the UFO setup of tapir. We thank Michael Spira for useful comments concerning ref. [2]. We have used the program FeynGame [45] to draw the Feynman diagrams.
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Davies, J., Schönwald, K., Steinhauser, M. et al. Next-to-leading order electroweak corrections to gg → HH and gg → gH in the large-mt limit. J. High Energ. Phys. 2023, 33 (2023). https://doi.org/10.1007/JHEP10(2023)033
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DOI: https://doi.org/10.1007/JHEP10(2023)033