lepton number

  1. in a process involving elementary particles, the total number of leptons minus the total number of antileptons.

Origin of lepton number

First recorded in 1955–60

Words Nearby lepton number

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British Dictionary definitions for lepton number

lepton number

  1. physics a quantum number describing the behaviour of elementary particles, equal to the number of leptons present minus the number of antileptons. It is thought to be conserved in all processes: Symbol: l

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