Axion-Higgs interplay in the two Higgs-doublet model

Abstract

We study the Dine-Fischler-Srednicki (DFS) model in the light of the recent Higgs LHC results and electroweak precision data. The DFS model is a natural extension of the two-Higgs doublet model endowed with a Peccei-Quinn symmetry and leading to a physically acceptable axion. For generic couplings, the model reproduces the minimal Standard Model showing only tiny deviations (extreme decoupling scenario) whereas all additional degrees of freedom (with the exception of the axion) are very heavy. Recently, new corners of this model have been highlighted where it may exhibit enlarged global symmetries making the corresponding models technically natural (naturalness scenario). In some cases an additional Higgs could be present at the weak scale. In this case, the new light $0^{+}$ state would be accompanied by relatively light charged and neutral pseudoscalar Higgses. We will use the oblique corrections, particularly $\Delta \rho$, to constrain the mass spectrum in this case. As a final result, we also work out the non-linear parametrization of the DFS model in the generic case where all scalars except the lightest Higgs and the axion have masses at or beyond the TeV scale.

comments and references added. results unchaged

References in corpus (11)

• Probing eV-scale axions with CAST
• A Systematic Approach to the SILH Lagrangian
• $B_{s,d}^0\to {\ell }^{+}{\ell }^{-}$ Decays in the Aligned Two-Higgs-Doublet Model
• Longitudinal WW scattering in light of the "Higgs" discovery
• Note on Anomalous Higgs-Boson Couplings in Effective Field Theory
• Sigma Decomposition
• Unitarity, analyticity, dispersion relations and resonances in strongly interacting $W_L{W}_L$, $Z_L{Z}_L$ and $hh$ scattering
• Massive neutrinos and invisible axion minimally connected
• Possible new resonance from $W_L{W}_L$-$hh$ interchannel coupling
• An ultra-weak sector, the strong CP problem and the pseudo-Goldstone dilaton
• Effective Aligned 2HDM with a DFSZ-like invisible axion

Cited by in corpus (12)

• Thermal QCD Axions across Thresholds
• On the IR/UV flavour connection in non-universal axion models
• Updated global fit of the aligned two-Higgs-doublet model with heavy scalars
• Leptogenesis from oscillations and dark matter
• Light scalars within the $\mathcal{C}\mathcal{P}$-conserving Aligned-two-Higgs-doublet model
• Flavored axion in the UV-complete Froggatt-Nielsen models
• Neutrino-axion-dilaton interconnection
• Running effects on QCD axion phenomenology
• Inflation and Higgs Phenomenology in a Model Unifying the DFSZ Axion with the Majoron
• The Electric Dipole Moment of the electron in the decoupling limit of the aligned Two-Higgs Doublet Model
• Lepton $g-2$ and $W$-boson mass anomalies in the DFSZ axion model
• Neutrino masses, matter-antimatter asymmetry, dark matter, and supermassive black hole formation explained with Majorons