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muon (plural muons)
- (physics) An unstable elementary particle in the lepton family, having similar properties to the electron but with a mass 207 times greater.
- 1951, Enrico Fermi, Elementary Particles:
- The μ-meson of Powell (called here muon) is instead a disintegration product of the pion, only weakly linked to the nucleons and therefore of little importance in the explanation of nuclear forces.
- 1955 March, CP Sargent, “Diffusion Cloud-Chamber Study of Very Slow Mesons”, in Physical Review:
- The spectrum of electrons arising from the decay of the negative mu meson has been determined. The muons are arrested in the gas of a high pressure hydrogen filled diffusion cloud chamber.
- 2023 August 11, Nicola Davis, “Scientists may be on brink of discovering fifth force of nature”, in The Guardian:
- The data comes from experiments at the Fermilab US particle accelerator facility, which explored how subatomic particles called muons – similar to electrons but about 200 times heavier – move in a magnetic field.
an unstable elementary particle in the lepton family
Contraction of mu-meson
- Hyphenation: mu‧on
muon n (plural muonen)
- accusative singular of muo