[/caption] The antineutrino (or anti-neutrino) is a lepton, an antimatter particle, the counterpart to the neutrino. Actually, there are three distinct antineutrinos, called types, or flavors: electron antineutrino (symbol ̅νe), muon antineutrino (symbol ̅νμ), and tau antineutrino (symbol ̅ντ). Beta Decay which produces electrons also produces (electron) antineutrinos. Wolfgang Pauli proposed the existence of these … Continue reading "Antineutrino"