Conservation of lepton number
What Conservation of lepton number means in Physics A-Level, as defined for AQA, OCR.
Definitions of Conservation of lepton number
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Reference: AQA
Lepton number is conserved, with the electron and antineutrino balancing lepton number in β⁻ decay and the positron and neutrino balancing it in β⁺ decay.
Lepton number balances because the electron has lepton number +1 and the antineutrino has −1.
Topics that use Conservation of lepton number
- Applications of conservation laws (AQA A-Level)
- Fundamental particles (OCR A-Level)
Related terms
- Conservation of charge
- Lepton number conservation
- Anti-quark charge reversal
- Baryon number and strangeness
- Baryons
- Charge from quark content
- Collisions, decays and annihilation processes
- Conservation laws in particle physics
Using Conservation of lepton number in the exam
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