Phenomenology of the Minimal Scale Invariant Two-Higgs-Doublet Model
Abstract
We perform a comprehensive phenomenological analysis of the Scale Invariant Two Higgs Doublet Model (SI2HDM)~Lee:2012jn. In this framework, the electroweak symmetry breaking is triggered radiatively, and the entire scalar mass spectrum, including that of the 125 GeV Higgs boson, is generated at the one loop level. After imposing stringent theoretical and experimental constraints, a highly constrained viable parameter space is identified, where the SM-like Higgs mass is purely radiative. The model predicts substantial suppression in the triple Higgs couplings and the di-Higgs production cross section at the LHC13, which can be reduced by up to 45.5~\% compared to the Standard Model prediction.
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