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Leptons

Leptons are particles and antiparticles that do not interact through the strong interactionThey interact through the weak interaction, the gravitational interaction and the electromagnetic interaction if charged. They include electrons, neutrinos and muons and their antiparticles positrons, antineutrinos and antimuons.The first generation:
electron e−electron neutrino νe
The second generation:
muon μ-muon neutrino νμ
The third generation:
tau τ-tau neutrino ντ

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Specification: AQA Physics (7407), AS-level, 3.2.1.5 Classification of particles. Topic: Quarks and Leptons.

Key terms in this lesson

Electron volt
The energy transferred when an electron moves through a potential difference of one volt, equal to 1.6 times ten to the minus 19 joules.
Ionisation
The removal of one or more electrons from a neutral atom, or the addition of electrons, to form an ion.
Potential difference
The energy transferred per unit charge as charge moves between two points in a circuit.

More in Quarks and Leptons

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