Two Higgs Doublets from Fermion Condensation

Abstract

We consider the most generic situation in models where the electroweak symmetry is broken by the condensation of a strongly coupled fermion sector, such as for instance a fourth generation. We study the scalar content resulting from the condensation of both the up and the down type fermions, corresponding to a two-Higgs doublet model. We estimate the scalar spectrum using the Nambu--Jona-Lasinio model, improved by the renormalization group. We show that the scalar spectrum is generically lighter than for the case with only one right-handed fermion condensing and that due to a remnant Peccei-Quinn symmetry the lightest state is the pseudo-scalar, with masses ranging typically from 10 GeV to 120 GeV. We discuss the phenomenological consequences of this distinct spectrum.

15 pages, 3 figures

References in corpus (2)

• The oblique parameters in multi-Higgs-doublet models
• Electroweak Symmetry Breaking from a Holographic Fourth Generation

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• The 125 GeV Higgs in the context of four generations with 2 Higgs doublets
• Hybrid dynamical electroweak symmetry breaking with heavy quarks and the 125 GeV Higgs
• The Need for New Search Strategies for Fourth Generation Quarks at the LHC
• Constraints on vector resonances from a strong Higgs sector
• The limits on the strong Higgs sector parameters in the presence of new vector resonances