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Searching for the QCD Dark Matter Axion

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arxiv 2504.10607 v1 pith:7QDX6CQU submitted 2025-04-14 hep-ex astro-ph.COhep-ph

classification hep-exastro-ph.COhep-ph
keywords axiondarkmattersearchesproposedregardingreviewthen
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Proposed half a century ago, the quantum chromodynamics (QCD) axion explains the lack of charge and parity violation in the strong interactions and is a compelling candidate for cold dark matter. The last decade has seen the rapid improvement in the sensitivity and range of axion experiments, as well as developments in theory regarding consequences of axion dark matter. We review here the astrophysical searches and theoretical progress regarding the QCD axion. We then give a historical overview of axion searches, review the current status and future prospects of dark matter axion searches, and then discuss proposed dark matter axion techniques currently in development.

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Forward citations

Cited by 9 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Amnesia in the Axion Misalignment Landscape

    hep-ph 2026-08 conditional novelty 7.0 of 10

    Kinetic misalignment fragmentation drives the small-scale axion spectrum toward the same attractor as post-inflationary axions, largely erasing the memory of the initial misalignment angle and velocity.

  2. Directed searches for gravitational waves from ultralight vector boson clouds around merger remnant and galactic black holes during the first part of the fourth LIGO-Virgo-KAGRA observing run

    gr-qc 2025-09 conditional novelty 7.0 of 10

    No gravitational-wave signal from ultralight vector boson clouds was found around two merger remnants or Cygnus X-1; masses [0.85, 1.59]x10^-13 eV are excluded for Cygnus X-1 at 95% confidence assuming initial spin above 0.5.

  3. Dark Matter Haloscope with a Disordered Dielectric Absorber

    hep-ph 2025-05 conditional novelty 7.0 of 10

    A disordered dielectric powder can act as a broadband dark-matter-to-photon conversion target, and the proposed DPHaSE experiment could probe QCD axions and dark photons in the 10 meV to 1 eV range.

  4. Heavy QCD Axions at High-Energy Muon Colliders

    hep-ph 2025-09 conditional novelty 6.0 of 10

    A 10 TeV muon collider can detect TeV-mass QCD axions through their decay into two jets, extending sensitivity beyond current and HL-LHC experiments.

  5. Search for dark-matter axions beyond the quantum limit: the Cosmological Axion Sarov Haloscope (CASH) proposal

    hep-ph 2025-06 conditional novelty 6.0 of 10

    The CASH haloscope proposal projects that Josephson-junction single-photon detectors can reach axion-photon couplings below 1e-15 GeV^-1 in the 38-54 micro-eV mass range, beating the standard quantum limit.

  6. The VORTEX cavity for the RADES axion haloscope

    physics.ins-det 2026-07 conditional novelty 5.0 of 10

    A split-cylinder axion haloscope tunes continuously from 9 to 8.2 GHz with modest Q loss, operates at millikelvin temperatures, and its TM010 field profile passes bead-pull verification.

  7. About electroweak domain walls in Majoron models

    hep-ph 2025-06 conditional novelty 5.0 of 10

    Electroweak instantons alone do not produce Majoron domain walls; a tiny instanton mass from B+L breaking is cosmologically negligible and can act as a bias or dark energy.

  8. Serendipitous supersymmetric solution to the strong CP problem

    hep-ph 2026-07 conditional novelty 4.5 of 10

    Anomaly-free discrete R-symmetries plus Kim-Nilles regeneration of the mu term force an accidental U(1)_PQ whose spontaneous breaking yields a SUSY DFSZ axion that solves strong CP.

  9. Experiments to test the hypothesis for solar and dark matter axions

    hep-ph 2025-07 unverdicted novelty 1.0 of 10

    This is a pedagogical review of haloscope and helioscope experiments searching for dark matter and solar axions, with an overview of near-future technological developments.

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