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A second Higgs near 0.5 TeV from bottom-up holographic modeling of beyond the Standard Model strong sector

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arxiv 2211.07500 v2 pith:YCTSA4LX submitted 2022-11-14 hep-ph

classification hep-ph
keywords modelhiggsholographicsecondbeyondbosonbottom-upcomposite
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One of the simplest extensions of the Standard Model (SM) consists in adding a scalar singlet. This second Higgs boson is able to solve several fundamental problems of SM. Additional scalar particles arise naturally in composite Higgs scenarios in which some confining "strong sector" beyond the SM drives the electroweak symmetry breaking. The underlying strongly coupled gauge theory may be similar to QCD and could be modeled holographically. We construct a bottom-up holographic model for description of the spectrum of composite Higgs particles. The model is based on the holographic Soft Wall model and the Wilson confinement criterion. The constructed model predicts the existence of a second Higgs boson with a mass of about 515 GeV.

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  1. Holographic composite Higgs model and gravitational waves produced during first order phase transition

    hep-th 2025-05 conditional novelty 5.0 of 10

    In the soft-wall holographic composite Higgs model, the symmetry breaking transition is strongly first order with alpha up to 10^3 and beta/H between 10^5 and 5x10^6, producing gravitational waves peaked near the BBO/...

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