English

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

High Energy Physics - Phenomenology 2025-12-12 v2

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 γγ\gamma\gamma and τ+τ\tau^+\tau^- final states in turn matching Large Electron Positron (LEP) data in bbˉb\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.

Keywords

Cite

@article{arxiv.2409.02587,
  title  = {Explaining 95 GeV Anomalies in the 2-Higgs Doublet Model Type-I},
  author = {Akshat Khanna and Stefano Moretti and Agnivo Sarkar},
  journal= {arXiv preprint arXiv:2409.02587},
  year   = {2025}
}

Comments

Version accepted for publication in Nuclear Phy B

R2 v1 2026-06-28T18:33:49.137Z