AWhat changed
Used cosmic-ray cloud-chamber tracks to identify light positively charged particles, now called positrons.
Scientific scope
Used cosmic-ray cloud-chamber tracks to identify light positively charged particles, now called positrons. Scope limitation: 1933 is the detailed paper retained here, following the 1932 announcement. The discovery is distinct from Dirac’s prior theoretical framework.
Evidence
Assessment uses the catalogue-linked source evidence for the stated contribution. 1933 is the detailed paper retained here, following the 1932 announcement. The discovery is distinct from Dirac’s prior theoretical framework.
Contributors
- Carl D. Anderson · SCIENCE: Named source contributor; exact labor shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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