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An antineutrino is the antimatter equivalent particle of the neutrino. It is produced in nuclear beta decay as a balance to the electron emitted by the nucleus. Neutrinos and antineutrinos only interact with other matter particles via the weak nuclear force, and consequently their properties do not differ greatly.
| Particles: Electron | Muon | Tauon | Electron neutrino | Muon neutrino | Tau neutrino | |
| Antiparticles : Positron | Antimuon | Antitauon | Electron antineutrino | Muon antineutrino | Tau antineutrino |