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Dark Matter Phenomenology in 2HDMS in light of the 95 GeV excess

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arxiv 2308.05653 v2 pith:6ZHIMZI5 submitted 2023-08-10 hep-ph

Juhi Dutta , Jayita Lahiri , Cheng Li , Gudrid Moortgat-Pick , Sheikh Farah Tabira , Julia Anabell Ziegler This is my paper · ORCID
classification hep-ph
keywords complexhdmshiggsmodelscalarcandidatedarkexcess
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The Two Higgs Doublet model extended with a complex scalar singlet (2HDMS) is a well-motivated Beyond Standard Model candidate addressing several open problems of nature. In this work, we focus on the dark matter (DM) phenomenology of the complex scalar singlet where the real part of the complex scalar obtains a vacuum expectation value. The model is characterized by an enlarged Higgs spectrum comprising six physical Higgs bosons and a pseudoscalar DM candidate. We address the impact of accommodating the 95 GeV excess on the 2HDMS parameter space and DM observables after including all theoretical and experimental constraints. Finally, we look into the prospects of this scenario at HL-LHC and future lepton colliders for a representative benchmark.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Interpreting Light Scalar Excesses and Heavy Scalar Cascades in the $\mu$-Term Extended NMSSM

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Viable μNMSSM regions can fit the 95 GeV diphoton/bb anomalies and produce H→hhs and A2→hA1→4b cascades near the 650 and (600,400) GeV CMS structures.

  2. The electroweak precision constraints of the 2HDM+S

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Electroweak precision data impose approximate mass relations and mass-splitting upper bounds on the 2HDM+S Higgs sector, with the charged Higgs mass on one side of each relation.

  3. Light Scalars in the Extended Georgi-Machacek Model

    hep-ph 2025-06 conditional novelty 6.0 of 10

    A global fit of the Georgi-Machacek and extended Georgi-Machacek models finds that the 95 GeV diphoton and bottom-quark excesses are compatible with the 125 GeV Higgs data, while the ditau excess is not, and it sets u...

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