Flaxion: a minimal extension to solve puzzles in the standard model

Abstract

We propose a minimal extension of the standard model which includes only one additional complex scalar field, flavon, with flavor-dependent global U(1) symmetry. It not only explains the hierarchical flavor structure in the quark and lepton sector (including neutrino sector), but also solves the strong CP problem by identifying the CP-odd component of the flavon as the QCD axion, which we call flaxion. Furthermore, the flaxion model solves the cosmological puzzles in the standard model, i.e., origin of dark matter, baryon asymmetry of the universe, and inflation. We show that the radial component of the flavon can play the role of inflaton without isocurvature nor domain wall problems. The dark matter abundance can be explained by the flaxion coherent oscillation, while the baryon asymmetry of the universe is generated through leptogenesis.

23 pages, 1 figure; v2: version published in JHEP

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Cited by in corpus (83)

• Physics potential of the International Axion Observatory (IAXO)
• Flavor probes of axion-like particles
• Minimal Flavor Violation with Axion-like Particles
• Thermal QCD Axions across Thresholds
• The Phenomenology of Quadratically Coupled Ultra Light Dark Matter
• Production of Thermal Axions across the ElectroWeak Phase Transition
• Lepton-flavor violating axions at MEG II
• Lepton Flavor Violation with Displaced Vertices
• Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC
• Axion emission from supernova with axion-pion-nucleon contact interaction
• Flavor Violating Axions in the Early Universe
• Lepton-Flavor-Violating ALPs at the Electron-Ion Collider: A Golden Opportunity
• The symmetry approach to quark and lepton masses and mixing
• On the IR/UV flavour connection in non-universal axion models
• Scalar field couplings to quadratic curvature and decay into gravitons
• Axion Dark Matter from Lepton flavor-violating Decays
• Naturally astrophobic QCD axion
• Precision axion physics with running axion couplings
• Supersizing axions with small size instantons
• Axion emission from strange matter in core-collapse SNe
• Testing axion couplings to leptons in $Z$ decays at future $e^{+}{e}^{-}$ colliders
• Slaying Axion-Like Particles via Gravitational Waves and Primordial Black Holes from Supercooled Phase Transition
• Unitarity constraints on ALP interactions
• ALP production in weak mesonic decays
• A Natural Model of Spontaneous CP Violation
• Probing HNL-ALP couplings at colliders
• Renormalization group effects in astrophobic axion models
• Explosive Axion Production from Saxion
• Quark flavor violation and axion-like particles from top-quark decays at the LHC
• Flavor violating muon decay into an electron and a light gauge boson
• The shift-invariant orders of an ALP
• Anomalous Dimension of a General Effective Gauge Theory I: Bosonic Sector
• Light Dark Matter Search with Nitrogen-Vacancy Centers in Diamonds
• Searching for new physics at $\mu \to e$ facilities with ${\mu }^{+}$ and ${\pi }^{+}$ decays at rest
• Dark matter detection using nuclear magnetization in magnet with hyperfine interaction
• Inflection-point Inflation and Dark Matter Redux
• Lepton Phenomenology of Stueckelberg Portal to Dark Sector
• Precise predictions for the QCD axion contribution to dark radiation with full phase-space evolution
• Limits on ALP-neutrino couplings from loop-level processes
• Searching for heavy neutral leptons coupled to axion-like particles at the LHC far detectors and SHiP
• Dark matter production through a non-thermal flavon portal
• Exploring the flavor structure of quarks and leptons with reinforcement learning
• Flavonic dark matter
• Nuclear Spin Metrology with Nitrogen Vacancy Center in Diamond for Axion Dark Matter Detection
• Dark SU(2) Stueckelberg portal
• Hyperons during proto-neutron star deleptonization and the emission of dark flavoured particles
• Gravitational waves from cosmic strings in Froggatt-Nielsen flavour models
• Flavor-changing light bosons with accidental longevity
• Type-II Majoron Dark Matter
• Leptoquarks, axions and the unification of B, L, and Peccei-Quinn symmetries
• Possible roles of Peccei-Quinn symmetry in an effective low energy model
• Light scalar beyond the Higgs mixing limit
• Anomaly-free ALP from non-Abelian flavor symmetry
• ALPs and HNLs at LHC and Muon Colliders: Uncovering New Couplings and Signals
• Probing an intrinsically flavorful ALP via tau-lepton flavor physics
• Froggatt-Nielsen Meets the SMEFT
• A comprehensive study of ALPs from $B$-decays
• Probing intermediate scale Froggatt-Nielsen models at future gravitational wave observatories
• Exploring Freeze-out and Freeze-in Dark Matter via Effective Froggatt-Nielsen Theory
• Modeling of axion and electromagnetic fields coupling in a particle-in-cell code
• Visible GeV ALP from TeV Vector-like Leptons
• Reinforcement learning-based statistical search strategy for an axion model from flavor
• The axion flavour connection
• A Stronger Case for Superunification Post Higgs Boson Discovery
• $T^{\prime }$ Models with High Quality Flaxions
• Effects of Finite Material Size On Axion-magnon Conversion
• Same-Sign Taus Signatures of Maximally Flavor-Violating Scalars at the LHC
• Testing the Froggatt-Nielsen Mechanism with Lepton Flavor and Number Violating Processes
• Multiple Axions Save High-Scale Inflation
• ALP contribution to the Strong CP problem
• Two-loop contributions of axion-like particles to electromagnetic and chromomagnetic form factors
• Post-inflationary production of particle Dark Matter: Hilltop and Coleman-Weinberg inflation
• A minimal axion model for mass matrices with five texture-zeros
• Improved cosmological constraints on axion-lepton interactions
• New Physics Searches at Kaon and Hyperon Factories
• Sweeping the pion chimney for axion-like particles with KOTO
• One-loop corrections to ALP couplings
• A composite Froggatt-Nielsen model of flavor
• ALPs and Heavy Hadron Chiral Perturbation Theory
• Coherently Enhanced Axion-Photon Conversion via Seeded Photons for Short-Pulse Axion Detection
• The ALPs from the Top: Searching for long lived axion-like particles from exotic top decays
• Axion-Neutrino Interplay in a Gauged Two-Higgs-Doublet Model
• Searching for exotic scalars at fusion reactors