A fundamental fermion that does not participate in strong interactions. The electrically-charged leptons are the electron, the muon, the tau, and their antiparticles. Electrically-neutral leptons are called neutrinos.

See also: Antilepton, Electron, Fermions, Flavour, Fundamental Particle, Muon, Neutrino, Tau Lepton, Weak Interaction.

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Subjects: Physics