Wolfgang Pauli proposed the existence of the neutrino in 1930 to resolve an apparent energy loss problem in a radioactivity experiment.
Notes on verification
Well-established history of physics, corroborated by multiple independent authoritative sources including APS, CERN archives, and Pauli biographies.
Sources
- Un neutrino éblouit l’astrophysique | CNRS Le journal (lejournal.cnrs.fr)
- https://www.aps.org/publications/apsnews/201012/physicshistory.cfm (aps.org)
- https://cds.cern.ch/record/83282 (cds.cern.ch)
- https://www.symmetrymagazine.org/article/the-manic-depressive-particle (symmetrymagazine.org)