On String Theory Expectations for Photon Couplings to Axion-Like Particles

Abstract

ALP-photon couplings are modeled in large ensembles of string vacua and random matrix theories. In all cases, the effective coupling increases polynomially in the number of ALPs, of which hundreds or thousands are expected in the string ensembles, many of which are ultralight. The expected value of the couplings $g_{a\gamma \gamma }\simeq 10^{-12}{\text{GeV}}^{-1}-10^{-10}{\text{GeV}}^{-1}$ provide viable targets for future x-ray telescopes and axion helioscopes, and in some cases are already in tension with existing data.

arXiv comment12 pages, 8 figures

References in corpus (34)

• CFT's From Calabi-Yau Four-folds
• New CAST Limit on the Axion-Photon Interaction
• The QCD axion, precisely
• Non-Perturbative Superpotentials In String Theory
• A Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment
• The type IIB string axiverse and its low-energy phenomenology
• New ALPS Results on Hidden-Sector Lightweights
• Any Light Particle Search II -- Technical Design Report
• Results from phase 1 of the HAYSTAC microwave cavity axion experiment
• Physics potential of the International Axion Observatory (IAXO)
• General Analysis of LARGE Volume Scenarios with String Loop Moduli Stabilisation
• Dynamical Dark Matter: I. Theoretical Overview
• A New Bound on Axion-Like Particles
• Constraints on axion-like particles from X-ray observations of Hydra galaxy cluster
• Constraints on Axion-Like Particles from X-ray Observations of NGC1275
• On Algorithmic Universality in F-theory Compactifications
• Constraints on Axion-Like Particles from Non-Observation of Spectral Modulations for X-ray Point Sources
• String Theory and the Dark Glueball Problem
• Probing ALPs and the Axiverse with Superconducting Radiofrequency Cavities
• Scanning the skeleton of the 4D F-theory landscape
• ${\alpha }^{\prime }$ Inflation: Moduli Stabilisation and Observable Tensors from Higher Derivatives
• The F-theory geometry with most flux vacua
• A Monte Carlo exploration of threefold base geometries for 4d F-theory vacua
• Computational Complexity of Vacua and Near-Vacua in Field and String Theory
• Heavy Tails in Calabi-Yau Moduli Spaces
• Vacuum Selection from Cosmology on Networks of String Geometries
• Projected bounds on ALPs from Athena
• Estimating Calabi-Yau Hypersurface and Triangulation Counts with Equation Learners
• Strong Coupling in F-theory and Geometrically Non-Higgsable Seven-branes
• On Axion Reheating in the String Landscape
• On the Scarcity of Weak Coupling in the String Landscape
• Electroweak Instantons, Axions, and the Cosmological Constant
• First Results from ABRACADABRA-10cm: A Search for Low-Mass Axion Dark Matter
• The Electroweak Axion, Dark Energy, Inflation and Baryonic Matter

Cited by in corpus (37)

• Early Dark Energy Does Not Restore Cosmological Concordance
• Superradiance in String Theory
• The Cosmic Axion Background
• Projected Sensitivity of DMRadio-m${}^3$: A Search for the QCD Axion Below $1\mu$eV
• Heterodyne Broadband Detection of Axion Dark Matter
• PQ Axiverse
• Axion Emission Can Explain a New Hard $X$-ray Excess from Nearby Isolated Neutron Stars
• Introducing DMRadio-GUT, a search for GUT-scale QCD axions
• Gravitational Waves from Dark Yang-Mills Sectors
• No evidence for axions from Chandra observation of magnetic white dwarf
• A CMB Millikan Experiment with Cosmic Axiverse Strings
• Supernova axions convert to gamma-rays in magnetic fields of progenitor stars
• On the Wondrous Stability of ALP Dark Matter
• Observational constraints on early dark energy
• Friendship in the Axiverse: Late-time direct and astrophysical signatures of early-time nonlinear axion dynamics
• Dark Grand Unification in the Axiverse: Decaying Axion Dark Matter and Spontaneous Baryogenesis
• On the Sensitivity of Spin-Precession Axion Experiments
• Cosmological Tension of Ultralight Axion Dark Matter and its Solutions
• A search for axion-like particles in light-by-light scattering at the CLIC
• Moduli Stabilisation and the Statistics of Axion Physics in the Landscape
• Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape
• Polarized light-by-light scattering at the CLIC induced by axion-like particles
• Applying machine learning to the Calabi-Yau orientifolds with string vacua
• On the applicability of the Landau-Zener formula to axion-photon conversion
• Axion-like particle oscillations
• Dispersion of Light Traveling through the Interstellar Space, Induced and Intrinsic Lorentz Invariance Violation
• Detecting axion dark matter beyond the magnetoquasistatic approximation
• Dark Radiation and the Hagedorn Phase
• Physics Beyond the Standard Model with Future X-ray Observatories: Projected Constraints on Very-Light Axion-Like Particles with $Athena$ and $AXIS$
• Constraints on Standard Model Constructions in F-theory
• Testing charge quantization with axion string-induced cosmic birefringence
• On the Generality and Persistence of Cosmological Stasis
• ALP Anarchy
• Joint Statistics of Cosmological Constant and SUSY Breaking in Flux Vacua with Nilpotent Goldstino
• Faking Gauge Coupling Unification in String Theory
• Electromagnetic modeling and science reach of DMRadio-m${}^3$
• Axion-photon conversion down to the nonrelativistic regime