When Standard Model Higgs Meets Its Lighter 95 GeV Higgs
arxiv(2024)
摘要
Two excesses reported recently at the LHC in the lighter Higgs mass region
around 95 GeV and in the rare Z γ final state of the Standard Model (SM)
125 GeV Higgs decay are simultaneously scrutinized within the framework of
minimal gauged two-Higgs-doublet model (G2HDM). Viable parameter space in G2HDM
is obtained to account for both excesses. We find a strong correlation between
the signal strengths of SM 125 GeV Higgs decays into γγ and Z
γ modes, whereas this correlation does not extend to its lighter 95 GeV
cousin.
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