Definition of lepton number in English:

lepton number

Line breaks: lep¦ton num¦ber


  • A quantum number assigned to subatomic particles that is ±1 for leptons and 0 for other particles and is conserved in all known interactions.
    More 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.

More definitions of lepton number

Definition of lepton number in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody