lepton number

Conserved quantum number representing the number of leptons minus the number of antileptons in an elementary particle reaction

EntityQ174012

Also known as lepton charge

Subclass of: quantum number
, charge

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

In particle physics, lepton number is a conserved quantum number representing the difference between the number of leptons and the number of antileptons in an elementary particle reaction. Lepton number is an additive quantum number, so its sum is preserved in interactions. The lepton number is defined by where is the number of leptons and is the number of antileptons.

Overview

On other databases

11 identifiers linking lepton number across the web's reference databases

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Source last edited July 10, 2026. AIDb refreshes this page daily.

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AIDb. (2026). lepton number (Q174012). Retrieved from https://aidb.si/e/lepton-number-Q174012