The Minimal Composite Higgs Model

The Minimal Composite Higgs Model

20 May 2005 | Kaustubh Agashe, Roberto Contino, Alex Pomarol
The paper explores the idea of a composite Higgs boson in a five-dimensional AdS theory, focusing on the minimal model where the Higgs is a pseudo-Goldstone boson (PGB) that dynamically breaks electroweak symmetry via top loop effects. The model solves flavor problems and contributes to electroweak precision observables within experimental bounds. The 5D theory, being weakly coupled, allows for a detailed determination of the Higgs potential and other physical quantities. The lightest resonances are expected to have masses around 2 TeV and should be discovered at the LHC. The top sector is mostly composite, and deviations from Standard Model couplings are anticipated. The model's predictions include a Higgs mass below 140 GeV and the presence of additional gauge and fermionic resonances with masses in the 1-3 TeV range. The authors also discuss the implications for the $S$ and $T$ parameters, showing that the model can satisfy experimental constraints with a mild tuning in the parameters.The paper explores the idea of a composite Higgs boson in a five-dimensional AdS theory, focusing on the minimal model where the Higgs is a pseudo-Goldstone boson (PGB) that dynamically breaks electroweak symmetry via top loop effects. The model solves flavor problems and contributes to electroweak precision observables within experimental bounds. The 5D theory, being weakly coupled, allows for a detailed determination of the Higgs potential and other physical quantities. The lightest resonances are expected to have masses around 2 TeV and should be discovered at the LHC. The top sector is mostly composite, and deviations from Standard Model couplings are anticipated. The model's predictions include a Higgs mass below 140 GeV and the presence of additional gauge and fermionic resonances with masses in the 1-3 TeV range. The authors also discuss the implications for the $S$ and $T$ parameters, showing that the model can satisfy experimental constraints with a mild tuning in the parameters.
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