Reanalysis of CMS ttγ data shows a 2.7σ localized excess in m_ℓℓγ at 152 GeV compatible with S → W⁺W⁻γ from a narrow scalar, yielding a ratio σ(S → W⁺W⁻γ)/σ(S → W⁺W⁻) = (2.14 ± 0.77)%.
Tumasyanet al.(CMS), JHEP05, 233 (2023), arXiv:2204.12945 [hep-ex]
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In the flavor-gauged two Higgs doublet model, h to Z gamma receives unique modifications from f fbar Z vertex corrections while both decays are sensitive to charged Higgs loops, with viable parameter space identified under current limits.
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Radiative Signature of New Scalar Boson Decays in the $m_{\ell \ell \gamma}$ Spectrum at the LHC
Reanalysis of CMS ttγ data shows a 2.7σ localized excess in m_ℓℓγ at 152 GeV compatible with S → W⁺W⁻γ from a narrow scalar, yielding a ratio σ(S → W⁺W⁻γ)/σ(S → W⁺W⁻) = (2.14 ± 0.77)%.
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Higgs Decays to $Z\gamma$ and $\gamma\gamma$ in the Flavor-Gauged Two Higgs Doublet Model
In the flavor-gauged two Higgs doublet model, h to Z gamma receives unique modifications from f fbar Z vertex corrections while both decays are sensitive to charged Higgs loops, with viable parameter space identified under current limits.