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arXiv · 2204.07470

Explaining the 96 GeV Di-photon Anomaly in a Generic 2HDM Type-III

Rachid Benbrik·Mohammed Boukidi·Stefano Moretti·Souad Semlali
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Abstract

Motivated by results recently reported by the CMS Collaboration about an excess in the di-photon spectrum at about 96 GeV, especially when combined with another long-standing anomaly at the same value in the $b\bar b$ invariant mass spectrum in four-jet events collected at LEP, we show that a possible explanation to both phenomena can be found at 1$σ$ level in a generic 2-Higgs Doublet Model (2HDM) of Type-III in presence of a specific Yukawa texture, wherein Lepton Flavour Violating (LFV) (neutral) currents are induced at tree level. Bounds from Higgs data play a major role in limiting the parameter space of this scenario, yet we find solutions with $m_H = 125$ GeV and $m_h = 96$ GeV consistent with current theoretical and experimental bounds.

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Rachid Benbrik, Mohammed Boukidi, Stefano Moretti, Souad Semlali. 2022-06-08. Explaining the 96 GeV Di-photon Anomaly in a Generic 2HDM Type-III. https://doi.org/10.1016/j.physletb.2022.137245

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