Cosmology of axion dark matter

Abstract

I present an introduction and topical review on axions as a dark matter candidate. Emphasis is placed on issues surrounding the cosmology of axion dark matter that are relevant for present-day searches, including: early-Universe production mechanisms, predictions of the axion mass, bounds on axion properties derived from cosmological data, as well as the direct and indirect detection of relic axion populations.

183 pages, 29 figures. Contribution to 1st Training School of the COST Action COSMIC WISPers (CA21106). Comments and requests still welcome

References in corpus (2)

• CMB-S4 Science Case, Reference Design, and Project Plan
• New Horizons: Scalar and Vector Ultralight Dark Matter

Cited by in corpus (29)

• The Science of the Einstein Telescope
• Direct-collapse supermassive black holes from relic particle decay
• Induced Domain Walls of QCD Axion, and Gravitational Waves
• Axion minicluster streams in the solar neighbourhood
• Pi in the Sky: Neutron Stars with Exceptionally Light QCD Axions
• New Interpretations of the Cosmological Preference for a Negative Neutrino Mass
• Bounds on heavy axions with an X-ray free electron laser
• New insights into axion freeze-in
• Minimal solution to the axion isocurvature problem from a nonminimal coupling
• QCD topology and axion properties in an isotropic hot and dense medium
• New Technologies for Axion and Dark Photon Searches
• Light scalar beyond the Higgs mixing limit
• Early Growth of Structure in Warm Wave Dark Matter
• Ultimate light-shining-through-a-wall experiments to establish QCD axions as the dominant form of dark matter
• Resolving the QCD Axion Domain Wall Problem with a Light Axion
• Freezing-in Cannibal Dark Sectors
• Stripped-Envelope Supernovae for QCD Axion Detection
• Cosmological perturbations with ultralight vector dark matter fields: numerical implementation in CLASS
• Dynamical reconstruction of SPARC galactic halos within self-interacting fuzzy dark matter
• DESI forecast for Dark Matter-Neutrino interactions using EFTofLSS
• Composite heavy axion-like dark matter
• Supercooled Audible Axions
• Wormhole-Induced ALP Dark Matter
• Neutrino masses, matter-antimatter asymmetry, dark matter, and supermassive black hole formation explained with Majorons
• Echoes in multi-ALP scenarios
• Quantum Semiconductor Heterostructures for meV Axion Dark Matter Detection
• Cosmological Implications of Thermodynamic Split Conjecture
• Five dimensional $SU(5)\times U(1{)}_{\mathrm{PQ}}$ grand unification
• Future Dark Energy Constraints from Atomic Clocks