Naturally astrophobic QCD axion

Abstract

We present a QCD axion model where the couplings of the axion to nucleons, electrons, and muons are naturally suppressed because of the appropriate choice of the Peccei-Quinn charges of the Standard Model fermions. We reexamine next-to-leading order corrections to the couplings of the axion with nucleons and photons and show that the axion decay constant may be as small as $10^7$ GeV. It is also possible to suppress the coupling with the photon so that the decay constant is even smaller and minimal axiogenesis works. In this scenario, the axion has a mass above 1 eV and may be directly detected via absorption of axion dark matter. Flavor-violating axion couplings are generically predicted in our model, but we show that they may be naturally and sufficiently suppressed. We discuss the implications of the hints for anomalous cooling in several stellar environments to our model.

22 pages, 3 figures

References in corpus (29)

• FLAG Review 2021
• Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity in Dense Matter
• Revisiting the bound on axion-photon coupling from Globular Clusters
• The Sphaleron Rate in the Minimal Standard Model
• Flaxion: a minimal extension to solve puzzles in the standard model
• The Low-Energy Effective Theory of Axions and ALPs
• Quark Flavor Phenomenology of the QCD Axion
• Stellar Recipes for Axion Hunters
• Revisiting the axion bounds from the Galactic white dwarf luminosity function
• New Constraints on Dark Photon Dark Matter with Superconducting Nanowire Detectors in an Optical Haloscope
• Looking forward to Lepton-flavor-violating ALPs
• Muons in supernovae: implications for the axion-muon coupling
• Upper Limit on the QCD Axion Mass from Isolated Neutron Star Cooling
• Running in the ALPs
• A search for two body muon decay signals
• Minimal Flavor Violation with Axion-like Particles
• Stellar Evolution confronts Axion Models
• Lepton-flavor violating axions at MEG II
• Flavor Violating Axions in the Early Universe
• QCD $\theta$-vacuum energy and axion properties
• Axiogenesis from $SU(2{)}_R$ phase transition
• Lepto-axiogenesis in minimal SUSY KSVZ model
• Precision calculation of the axion-nucleon coupling in chiral perturbation theory
• Precision axion physics with running axion couplings
• Lepto-axiogenesis and the scale of supersymmetry
• Renormalization group effects in astrophobic axion models
• Charge transfer between rotating complex scalar fields
• Flavor-Violating Higgs Decays and Stellar Cooling Anomalies in Axion Models
• Hidden Photon and Axion Dark Matter from Symmetry Breaking

Cited by in corpus (8)

• Axion Poltergeist
• Precise predictions for the QCD axion contribution to dark radiation with full phase-space evolution
• Acoustic Misalignment Mechanism for Axion Dark Matter
• Do Finite Density Effects Jeopardize Axion Nucleophobia in Supernovae?
• Classification of three-family flavoured DFSZ axion models that have no domain wall problem
• Catalogues of Cosmologically Self-Consistent Hadronic QCD Axion Models
• Improved cosmological constraints on axion-lepton interactions
• Earth-lens telescope for distant axion-like particle sources with stimulated backward reflection