Assertion: electron neutrino | /r/AtLocation | final state
Facets:
value: with only positrons
type: OTHER
value: with electron-antineutrinos
type: OTHER
Source sentences:
text: In all observations so far of leptonic processes (despite extensive and continuing searches for exceptions), there is never any change in overall lepton number; for example, if total lepton number is zero in the initial state, electron neutrinos appear in the final state together with only positrons (anti-electrons) or electron-antineutrinos, and electron antineutrinos with electrons or electron neutrinos.