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article · Nuclear Physics B

When the Standard Model Higgs meets its lighter 95 GeV twin

20259 citationsOpen accessAbdelmalek Essaâdi University

Abstract

Recent reports from the Large Hadron Collider indicate two excesses: one in the lighter Higgs mass region around 95 GeV, and another in the rare Zγ final state of the Standard Model (SM) 125 GeV Higgs decay. These anomalies are analyzed within the minimal gauged two-Higgs-doublet model (G2HDM). A viable parameter space in G2HDM is identified that can account for both excesses. Within the viable parameter space, we find a strong correlation between the signal strengths of the SM 125 GeV Higgs decays into γγ and Zγ modes. However, this correlation does not extend to the lighter 95 GeV Higgs.

Research topics

  • Particle physics theoretical and experimental studies
  • Dark Matter and Cosmic Phenomena
  • Computational Physics and Python Applications

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DOI: 10.1016/j.nuclphysb.2025.116909

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