Explaining 95 GeV Anomalies in the 2-Higgs Doublet Model Type-I

Akshat Khanna; Stefano Moretti; Agnivo Sarkar

doi:10.1016/j.nuclphysb.2025.117229

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arXiv · 2409.02587

Explaining 95 GeV Anomalies in the 2-Higgs Doublet Model Type-I

Akshat Khanna·Stefano Moretti·Agnivo Sarkar

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Abstract

We show how the 2-Higgs Doublet Model (2HDM) Type-I can explain some excesses recently seen at the Large Hadron Collider (LHC) in $\gamma\gamma$ and $\tau^+\tau^-$ final states in turn matching Large Electron Positron (LEP) data in $b\bar b$ signatures, all anomalies residing around 95 GeV. The explanation to such anomalous data is found in the aforementioned scenario when in inverted mass hierarchy, in two configurations: i) when the lightest CP-even Higgs state is alone capable of reproducing the excesses; ii) when a combination of such a state and the CP-odd Higgs boson is able to do so. To test further this scenario, we present some Benchmark Points (BPs) of it amenable to phenomenological investigation.

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Akshat Khanna, Stefano Moretti, Agnivo Sarkar. 2024-09-04. Explaining 95 GeV Anomalies in the 2-Higgs Doublet Model Type-I. https://doi.org/10.1016/j.nuclphysb.2025.117229

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