Simple and Realistic Composite Higgs Models in Flat Extra Dimensions

Abstract

We construct new composite Higgs/gauge-Higgs unification (GHU) models in flat space that overcome all the difficulties found in the past in attempting to construct models of this sort. The key ingredient is the introduction of large boundary kinetic terms for gauge (and fermion) fields. We focus our analysis on the electroweak symmetry breaking pattern and the electroweak precision tests and show how both are compatible with each other. Our models can be seen as effective TeV descriptions of analogue warped models. We point out that, as far as electroweak TeV scale physics is concerned, one can rely on simple and more flexible flat space models rather than considering their unavoidably more complicated warped space counterparts. The generic collider signatures of our models are essentially undistinguishable from those expected from composite Higgs/warped GHU models, namely a light Higgs, colored fermion resonances below the TeV scale and sizable deviations to the Higgs and top coupling.

30 figures, 9 figures; v2: minor improvements, one reference added, version to appear in JHEP

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Cited by in corpus (26)

• Light Top Partners for a Light Composite Higgs
• General Composite Higgs Models
• Light top partners and precision physics
• The Discrete Composite Higgs Model
• Implications of a Light Higgs in Composite Models
• The 4D Composite Higgs
• UV Completions of Composite Higgs Models with Partial Compositeness
• New Prospects for Higgs Compositeness in h -> Z gamma
• A naturally light Higgs without light Top Partners
• Leptons in Holographic Composite Higgs Models with Non-Abelian Discrete Symmetries
• Electroweak baryogenesis and gravitational waves in a composite Higgs model with high dimensional fermion representations
• Custodial Leptons and Higgs Decays
• Top Partners Searches and Composite Higgs Models
• LHC signals of the $SO(5)\times U(1)$ gauge-Higgs unification
• The S parameter for a Light Composite Higgs: a Dispersion Relation Approach
• General Lepton Mixing in Holographic Composite Higgs Models
• Speculations on the W-Mass Measurement at CDF
• The Effect of Composite Resonances on Higgs decay into two photons
• Broad composite resonances and their signals at the LHC
• A minimally tuned composite Higgs model from an extra dimension
• Functional renormalization of N scalars with O(N) invariance
• The vector resonance triplet with the direct coupling to the third quark generation
• Soft Wall holographic model for the minimal Composite Higgs
• Weak Mixing Angle and Higgs Mass in Gauge-Higgs Unification Models with Brane Kinetic Terms
• Two Higgs Doublets Model in Gauge-Higgs Unification framework
• Variational approach to thermal masses in compactified models