Muon

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A muon is an unstable electrically negatively charged elementary particle with spin ½.

The muon is a lepton of the second generation and is about 207 times as heavy as an electron. The corresponding antiparticle is the antimuon. Muons and antimuons are fermions.

M u o n s

µ⁻
muon µ⁺
antimuon

The Italien physicist Gian Carlo Wick (1909 - 1992) made the first measurement of the lifetime of the muon.