Definition of lepton number in English:

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lepton number


A quantum number assigned to subatomic particles that is ±1 for leptons and 0 for other particles and is conserved in all known interactions.
Example sentences
  • When you add the appropriate baryon and lepton numbers and know the beginning charge of both particles, all three of these numbers must be equal before and after the reaction.
  • In any reaction between particles, anti or normal, the baryon and lepton numbers must be conserved.
  • It is also possible to compute the average baryon and lepton numbers at finite temperatures and in the relativistic domain.

For editors and proofreaders

Syllabification: lep·ton num·ber

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