Axion-electron coupling

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Basic plot

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Basic plot with projections

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Closeup of underground detectors

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Data files and references

Underground detectors

• DARWIN: projection, reference
• DarkSide-50: limit, reference
• EDELWEISS: limit, projection, reference
• GERDA: limit, reference
• LUX: limit, reference
• LZ: projection, reference
• PandaX-II: limit, reference
• Semiconductors (absorption): projection, reference
• SuperCDMS: limit, reference
• XENON1T (ALP DM search, S2 only): limit, reference
• XENON1T (ALP DM search S1+S2): limit, reference
• XENON1T (ALP DM search single electron): limit, reference
• XENON1T (Solar axion basin): limit, reference
• XENONnT (ALP DM): limit, reference
• XENONnT (Solar axions): limit, reference

Haloscopes:

• Axion-magnon conversion: projection, reference
• Axion-magnon conversion (scanning): projection, reference1, reference2
• Magnon quantum nondemolition: limit, reference
• NV Centers limit, reference
• QUAX: limit, reference 2018, reference 2020

Astro bounds:

• Freeze-in ALPs (irreducible axions): limit, reference
• Red giant branch: limit, reference
• Solar neutrinos: limit, reference
• White dwarf hint: limit, reference
• X-rays (1-loop decay to photons): limit, reference