Top-Yukawa- and light-quark-induced electroweak corrections to Higgs-Pair Production via Gluon Fusion

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• Arunima Bhattacharya (Valencia U., IFIC)
• Friday 20 February 2026, 16:00-17:00
• MR19 (Potter Room, Pavilion B), CMS.

If you have a question about this talk, please contact Terry Generet.

Gluon fusion, gg→HH, is the dominant Higgs-pair production process at the Large Hadron Collider (LHC) with direct sensitivity to the trilinear Higgs self-interaction. The process is loop-induced, with the leading contribution arising from top-quark loops in the Standard Model, and QCD corrections are known to significantly enhance the cross section. With the anticipated accuracies achievable at the high-luminosity LHC , the theoretical uncertainties will be of increased relevance to compete with the experimental precision at the level of less than 30%. Therefore, as a first step in this direction, we compute next-to-leading-order electroweak contributions to gg→HH from two sources: top-Yukawa–induced and light-quark–induced effects. I will present their impact on the total cross section and on the Higgs-pair invariant-mass spectrum, highlighting threshold features and the kinematic regions where electroweak effects reach the few-to-ten per cent level.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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