Simulations and flavour-scheme studies for Higgs-boson production in association with charm quarks

Tiziano Bevilacqua; Christian Biello; Lea Michela Caminada; Clemens Lange; Marino Missiroli; Davide Pagani; Michele Selvaggi; Marco Zaro

arXiv · 2608.26863

Simulations and flavour-scheme studies for Higgs-boson production in association with charm quarks

Tiziano Bevilacqua·Christian Biello·Lea Michela Caminada·Clemens Lange·Marino Missiroli·Davide Pagani·Michele Selvaggi·Marco Zaro

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Abstract

We present a detailed NLO+PS study of Higgs-boson production in association with charm and bottom quarks, with particular focus on the modelling of the H+c final state. We systematically compare predictions in massive and massless flavour schemes, quantify scale and flavour-scheme uncertainties, and assess the impact of interference and loop-induced contributions. Special emphasis is placed on the Higgs production via charm Yukawa fusion, for which we compare NLO+PS predictions with a NNLO+PS calculation of $c\bar{c}H$ production in the four-flavour scheme at 13.6 TeV. Based on these results, we provide the first practical recommendations for the simulation of $c\bar{c}H$ production in LHC analyses.

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Tiziano Bevilacqua, Christian Biello, Lea Michela Caminada, Clemens Lange, Marino Missiroli, Davide Pagani, Michele Selvaggi, Marco Zaro. 2026-08-27. Simulations and flavour-scheme studies for Higgs-boson production in association with charm quarks. https://arxiv.org/abs/2608.26863

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