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arXiv · 2512.14587

Charged Higgs Pairs at the LHC: A NLO Analysis

Mohamed Ahmed·Lisa Biermann·Harald Ita·Irina Rusetski·Michael Spira·Yelyzaveta Yedelkina
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Abstract

Charged Higgs-boson pair production at hadron colliders yields information about the trilinear couplings involving charged Higgs fields in extensions of the Standard Model (SM). We consider the type-I two-Higgs doublet model (2HDM) extension and obtain next-to-leading order QCD predictions for the charged-Higgs pair production ($H^+H^-$ production). All production modes, i.e. Drell--Yan-like production, gluon fusion and vector-boson fusion are included in the analysis. We determine uncertainties originating from the scale dependence, the parton-density functions and strong coupling $\alpha_s$ at the LHC. We observe that the QCD corrections lead to a significant reduction of the relative scale dependences. These improved predictions will allow for a quantitative interpretation of experimental measurements, in case that charged Higgs states will be observed.

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Mohamed Ahmed, Lisa Biermann, Harald Ita, Irina Rusetski, Michael Spira, Yelyzaveta Yedelkina. 2025-12-16. Charged Higgs Pairs at the LHC: A NLO Analysis. https://doi.org/10.21468/scipostphyscommrep.26

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