Physics A-Level
lepton number
What lepton number means in Physics A-Level, as defined for AQA.
Definitions of lepton number
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Reference: AQA
A quantity conserved in particle interactions, with the electron antineutrino balancing the electron lepton number and the muon neutrino conserving the muon lepton number.
A quantum number with value 1 for a lepton, −1 for an antilepton and 0 for non-leptons.
Topics that use lepton number
- Classification of particles (AQA A-Level)
Related terms
- Baryon number
- Baryons
- Baryons and antibaryons
- Conservation laws
- Conservation of baryon number
- Conservation of strangeness
- Energy release in particle decays
- Gluons
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