AI reviewed · sources pending. Book associations have not been verified.
Leptons
ConceptElementary particles that do not experience the strong interaction.
Explanation or usage
Electrons, muons and tau particles are charged leptons. Electron, muon and tau neutrinos are neutral leptons.
In The Feynman Lectures on Physics, Volume I
General context reviewed · book attribution and sources pending
In modern particle physics, leptons include the electron, muon, tau, and their corresponding neutrinos. Neutrinos have nonzero masses.
In QED: The Strange Theory of Light and Matter
General context reviewed · book attribution and sources pending
General illustrative particle context; no claim about a specific passage or edition.
In Six Easy Pieces
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General illustrative context: distinguish charged leptons from neutral neutrinos; no claim about a particular passage or edition.