Strong CP problem and axion dark matter with small instantons

Abstract

The axion mass receives a large correction from small instantons if the QCD gets strongly coupled at high energies. We discuss the size of the new CP violating phases caused by the fact that the small instantons are sensitive to the UV physics. We also discuss the effects of the mass correction on the axion abundance of the Universe. Taking the small-instanton contributions into account, we propose a natural scenario of axion dark matter where the axion decay constant is as large as $10^{15\text{-}16}$GeV. The scenario works in the high-scale inflation models.

arXiv comment32pages, 8figures

References in corpus (72)

• Axion Cosmology
• String Axiverse
• Axions In String Theory
• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• The Low-Energy Frontier of Particle Physics
• Electric dipole moments as probes of new physics
• Symmetries and Strings in Field Theory and Gravity
• WISPy Cold Dark Matter
• New experimental approaches in the search for axion-like particles
• Experimental Searches for the Axion and Axion-like Particles
• The landscape of QCD axion models
• The type IIB string axiverse and its low-energy phenomenology
• Supernova 1987A Constraints on Sub-GeV Dark Sectors, Millicharged Particles, the QCD Axion, and an Axion-like Particle
• A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
• The QCD Axion and Moduli Stabilisation
• Constraining Light Dark Matter with Diffuse X-Ray and Gamma-Ray Observations
• Extranatural Inflation
• Standard Model-Axion-Seesaw-Higgs Portal Inflation. Five problems of particle physics and cosmology solved in one stroke
• An M Theory Solution to the Strong CP Problem and Constraints on the Axiverse
• The Stochastic Axion Scenario
• The QCD Axion Window and Low Scale Inflation
• Casimir Energy and Radius Stabilization in Five and Six Dimensional Orbifolds
• The ALP miracle: unified inflaton and dark matter
• The Cosmology of String Theoretic Axions
• Factoring the Strong CP Problem
• Lattice QCD input for axion cosmology
• A Storage Ring Experiment to Detect a Proton Electric Dipole Moment
• Axion cosmology, lattice QCD and the dilute instanton gas
• Relaxing the Cosmological Moduli Problem
• Confirming the Existence of the strong CP Problem in Lattice QCD with the Gradient Flow
• QCD Axion Dark Matter with a Small Decay Constant
• A QCD Axion from Higher Dimensional Gauge Field
• Composite Accidental Axions
• The Axion Mass from 5D Small Instantons
• Topological susceptibility at high temperature on the lattice
• Accidental Peccei-Quinn symmetry protected to arbitrary order
• A "Gauged" $U(1)$ Peccei-Quinn Symmetry
• Stabilizing the Axion by Discrete Gauge Symmetries
• Lattice QCD for Cosmology
• A High Quality Composite Axion
• QCD Axion on Hilltop by a Phase Shift of $\pi$
• A Next-to-Minimal Supersymmetric Model of Hybrid Inflation
• Suppressing Isocurvature Perturbations of QCD Axion Dark Matter
• On the Adiabatic Solution to the Polonyi/Moduli Problem
• Axion Misalignment Driven to the Hilltop
• A Composite Higgs with a Heavy Composite Axion
• Light Dark Matter from Inflaton Decay
• A Flavorful Factoring of the Strong CP Problem
• ALP inflation and Big Bang on Earth
• Relaxing the Cosmological Moduli Problem by Low-scale Inflation
• Axion Cosmology with a Stronger QCD in the Early Universe
• Axion quality from the (anti)symmetric of SU(N)
• Axion Misalignment Driven to the Bottom
• Note on moduli stabilization, supersymmetry breaking and axiverse
• Peccei-Quinn symmetry from a hidden gauge group structure
• Discrete Gauge Symmetries in Axionic Extensions of the SSM
• Stochastic Axion Dark Matter in Axion Landscape
• The Axion Quality Problem: Global Symmetry Breaking and Wormholes
• Protecting the Axion with Local Baryon Number
• Axions in a highly protected gauge symmetry model
• Axion Quality from Superconformal Dynamics
• REMOVING THE COSMOLOGICAL BOUND ON THE AXION SCALE
• Scale and quality of Peccei-Quinn symmetry and weak gravity conjectures
• Maximal axion misalignment from a minimal model
• Trapping Effect for QCD Axion Dark Matter
• The strength of small-instanton amplitudes in gauge theories with compact extra dimensions
• QCD Axion Window and False Vacuum Higgs Inflation
• Dynamical axion misalignment with small instantons
• Axions and a Gauged Peccei-Quinn Symmetry
• Small instantons and the strong CP problem in composite Higgs models
• A natural and simple UV completion of the QCD axion model
• Inflaxion Dark Matter

Cited by in corpus (15)

• PQ Axiverse
• Challenges for heavy QCD axion inflation
• High Quality QCD Axion at Gravitational Wave Observatories
• Cosmic Axion Force
• Grand Color Axion
• High Energy Sphalerons for Baryogenesis at Low Temperatures
• Radiative lepton mass and muon $g-2$ with suppressed lepton flavor and CP violations
• Altered Axion Abundance from a Dynamical Peccei-Quinn Scale
• Warm inflation with a heavy QCD axion
• Constraints on ultralight axions, vector gauge bosons, and unparticles from geodetic and frame-dragging measurements
• Shining ALP Dark Radiation
• Reduced Axion Abundance from an Extended Symmetry
• New Physics Searches at Kaon and Hyperon Factories
• Gauge coupling jump and small instantons from a large non-minimal coupling
• Finding BSM Needles in Electromagnetic Haystacks at DUNE