Nobel Prize in Physics in 1995 2026-10-18
For pioneering experimental contributions to lepton physics, one half went to Martin Lewis Perl for discovering the tau lepton; the other half went to Frederick Reines for detecting the neutrino.[ref]
The Nobel Prize in Physics 1995 by Nobel Prize Outreach. Individual official 1995 summary: equal halves; tau-lepton discovery versus neutrino detection.