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Research dossier · version 1 · updated Oct 30, 2026

Dark Matter Searches: State of the Field (October 2026)

This dossier surveys direct searches for dark matter particles as of October 2026: WIMP scattering in xenon and argon detectors, the annual-modulation test of sodium-iodide claims, sub-GeV electron-recoil searches, axion haloscopes and primordial black hole constraints. The central takeaway is that the tightest spin-independent WIMP limit reviewed here, near 2.2 × 10^-48 cm² at 40 GeV/c², is still an exclusion, while the sharpest current debate concerns the DAMA/LIBRA modulation claim and the neutrino background.

3,464 words40 sources28 evidence-mapped claims11 benchmarks17 timeline events✓ citation-verified Oct 30, 2026

AI-assisted synthesis of the cited literature, independently fact-checked against its sources; not peer reviewed.

Contents

  1. Executive summary
  2. Background and core concepts
  3. Timeline of key milestones
  4. State of the art
  5. Spin-independent xenon and argon searches
  6. Annual modulation: NaI(Tl) tests
  7. Low-threshold and light dark matter
  8. Axion and wave-like dark matter
  9. Primordial black holes
  10. Quantitative benchmarks
  11. Open problems and active debates
  12. Major programs and players
  13. Outlook: what to watch (next 12-18 months)
  14. Key papers
  15. Glossary

Sample findings

  • The LZ 4.2 tonne-year WIMP search (280 live days) reports a minimum spin-independent WIMP-nucleon upper limit of 2.2 × 10^-48 cm² at 40 GeV/c² at 90% confidence, with exclusion limits only and no claimed detection.
  • LZ reports an exposure of 4.2 ± 0.1 tonne-years from 280 live days.
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