{"slug":"baryon-asymmetry","name":"Matter-Antimatter Asymmetry","blurb":"Why the observable universe contains much more matter than antimatter.","kind":"curated","status":"live","definition":{"terms":["baryon asymmetry","matter-antimatter asymmetry","baryogenesis"],"msc":[],"cats":["hep-ph","astro-ph.CO"]},"created_at":"2026-08-11T02:18:14.238165+00:00","updated_at":"2026-08-11T02:18:14.238165+00:00","counts":{"claims_by_tier":{"formal":45,"stated":609},"claims_by_method":{"signals":227,"phrase":427},"papers":609}}