The Half-composite Two Higgs Doublet Model and the Relaxion
arXiv:1508.01112 · doi:10.1007/JHEP12(2015)031
Abstract
We study a new confining gauge theory with fermions in a vectorial representation under the SM gauge group that allows for Yukawa interactions with the Higgs. If the fermion masses are smaller than the confinement scale this realizes a type I two Higgs doublet model where a composite Higgs mixes with the elementary Higgs. This class of models interpolates between an elementary and a composite Higgs and has interesting phenomenology with potentially observables effects in collider physics, EDMs and SM couplings but very weak bounds from indirect searches. The very same framework can be used to realize the cosmological relaxation of the electro-weak scale recently discussed in the literature.
16 pages. v2 minor changes; v3 typos fixed
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- Cosmological Relaxation of the Electroweak Scale
- Cosmological Higgs-Axion Interplay for a Naturally Small Electroweak Scale
- Dynamical generation of the weak and Dark Matter scales from strong interactions
- Multi-Photon Signals from Composite Models at LHC
- Lectures on Higgs Boson Physics in the Standard Model and Beyond
Cited by in corpus (28)
- Realizing the relaxion from multiple axions and its UV completion with high scale supersymmetry
- Fundamental Composite 2HDM: SU(N) with 4 flavours
- Is the Relaxion an Axion?
- Natural Heavy Supersymmetry
- UV complete composite Higgs models
- Gluequark Dark Matter
- Dynamics of the cosmological relaxation after reheating
- Higgs relaxation after inflation
- Towards a No-Lose Theorem for Naturalness
- Dark Mesons at the LHC
- New physics of strong interaction and Dark Universe
- A Theory of Dark Pions
- Hadronic and hadron-like physics of Dark Matter
- Musings on cosmological relaxation and the hierarchy problem
- Relaxation of the Composite Higgs Little Hierarchy
- Relaxion Cosmology and the Price of Fine-Tuning
- Naturalness of the relaxion mechanism
- Mirror Cosmological Relaxation of the Electroweak Scale
- Di-Photon excess in the 2HDM: hasting towards the instability and the non-perturbative regime
- Relaxion Dark Matter
- Coset Cosmology
- A possible interpretation of the Higgs mass by the cosmological attractive relaxion
- Attracting the Electroweak Scale to a Tachyonic Trap
- Cosmological Relaxation from Dark Fermion Production
- Light Higgs Boson from a Pole Attractor
- Shift-Symmetries at Higher Order
- Lectures on Naturalness, String Landscape and Multiverse
- Reducing the Quadratic Divergence in the Higgs Mass Squared Without Top Partners