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GM2Calc-2 for the 2HDM

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arxiv 2207.09039 v1 pith:LHL7W3SP submitted 2022-07-19 hep-ph

Peter Athron , Csaba Balazs , Adriano Cherchiglia , Douglas H. J. Jacob , Dominik Stöckinger , Hyejung Stöckinger-Kim , Alexander Voigt This is my paper · ORCID
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keywords modelcontributionscodegm2calcgm2calc2powerfulprecisestandard
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abstract

GM2Calc is a leading tool for calculating precise contributions to $a_\mu$ in the Minimal Supersymmetric Standard Model. In this proceeding we detail GM2Calc version 2 where it is extended so it can calculate two-loop contributions to $a_\mu$ in the Two-Higgs Doublet Model (2HDM), based on the work in Ref. [1]. The 2HDM is a simple model, yet it is one of the few single field extensions of the Standard Model which is able to explain the muon $g-2$ anomaly. We demonstrate the powerful and flexible 2HDM capabilities of GM2Calc2, which include the most precise contributions in the literature and allow the user to work in their favourite type of the 2HDM as well as use complex and lepton flavour violating couplings. With its multiple interfaces and input flexibility, GM2Calc2 is a powerful tool both as a standalone code and as part of a larger code toolchain.

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  1. The LHC sensitivity to weak gauginos in light of the latest muon $g-2$ and dark matter results

    hep-ph 2025-05 conditional novelty 4.0 of 10

    In the MSSM, after muon g-2 and dark matter constraints, only bino-like LSPs with wino or slepton coannihilation survive, and a 27 TeV HE-LHC could probe most of the remaining mass range.

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