Ruling out light axions: the writing is on the wall
arXiv:2211.14635 · doi:10.21468/SciPostPhys.15.1.003
Abstract
We revisit the domain wall problem for QCD axion models with more than one quark charged under the Peccei-Quinn symmetry. Symmetry breaking during or after inflation results in the formation of a domain wall network which would cause cosmic catastrophe if it comes to dominate the Universe. The network may be made unstable by invoking a `tilt' in the axion potential due to Planck scale suppressed non-renormalisable operators. Alternatively the random walk of the axion field during inflation can generate a `bias' favouring one of the degenerate vacua, but we find that this mechanism is in practice irrelevant. Consideration of the axion abundance generated by the decay of the wall network then requires the Peccei-Quinn scale to be rather low -- thus ruling out e.g. the DFSZ axion with mass below 11 meV, where most experimental searches are in fact focussed.
arXiv comment22 pages, 4 figures; Updated with additional citations, clarifications & comments - conclusion essentially unchanged
References in corpus (41)
- Axion Cosmology
- An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
- Equilibrium State of a Massless Self-Interacting Scalar Field in the De Sitter Background
- The QCD axion, precisely
- Experimental Searches for the Axion and Axion-like Particles
- Measurement of the permanent electric dipole moment of the neutron
- Astrophysical Axion Bounds
- Planck-Scale Physics and the Peccei-Quinn Mechanism
- Big Bang nucleosynthesis and physics beyond the Standard Model
- Supernova 1987A Constraints on Sub-GeV Dark Sectors, Millicharged Particles, the QCD Axion, and an Axion-like Particle
- Solutions to the strong CP problem in a world with gravity
- A Revised Experimental Upper Limit on the Electric Dipole Moment of the Neutron
- Axion Cosmology
- Invisible Axion Search Methods
- Axion dark matter from topological defects
- More Axions from Strings
- Physics potential of the International Axion Observatory (IAXO)
- Dark Matter from Axion Strings with Adaptive Mesh Refinement
- Redefining the Axion Window
- On the estimation of gravitational wave spectrum from cosmic domain walls
- A review of gravitational waves from cosmic domain walls
- Evading the cosmological domain wall problem
- The Stochastic Axion Scenario
- Stellar Recipes for Axion Hunters
- Studies of the motion and decay of axion walls bounded by strings
- The QCD Axion Window and Low Scale Inflation
- Axion dark matter in the post-inflationary Peccei-Quinn symmetry breaking scenario
- Primordial Black Holes from the QCD axion
- Cosmological Bound on the QCD Axion Mass, Redux
- Isocurvature Constraints and Anharmonic Effects on QCD Axion Dark Matter
- Analytic scaling solutions for cosmic domain walls
- Stability of domain wall network with initial inflationary fluctuations, and its implications for cosmic birefringence
- Novel cosmological bounds on thermally-produced axion-like particles
- Simulations of axion-like particles in the post-inflationary scenario
- Cosmic implications of a low-scale solution to the axion domain wall problem
- Level Set Method for the Evolution of Defect and Brane Networks
- Observing Light-by-Light Scattering in Vacuum with an Asymmetric Photon Collider
- Light-shining-through-wall axion detection experiments with a stimulating laser
- Axion detection through resonant photon-photon collisions
- Domain Wall Formation In The Post-Inflationary Universe
- No cosmological domain wall problem for weakly coupled fields
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- First search for axion dark matter with a Madmax prototype
- Induced Domain Walls of QCD Axion, and Gravitational Waves
- The Quality/Cosmology Tension for a Post-Inflation QCD Axion
- The Flavor of QCD Axion Dark Matter
- A Common Origin for the QCD Axion and Sterile Neutrinos from Strong Dynamics
- Bounds on heavy axions with an X-ray free electron laser
- Imperfect Axion Precludes the Domain Wall Problem
- Inflation and Higgs Phenomenology in a Model Unifying the DFSZ Axion with the Majoron
- Resolving the QCD Axion Domain Wall Problem with a Light Axion
- How Viable Is a QCD Axion near 10 MeV?
- Exploring the viability of pseudo Nambu-Goldstone boson as ultralight dark matter in a mass range relevant for strong gravity applications