muon

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English[edit]

Etymology[edit]

Contraction of the earlier term mu-meson; the particle has now been recategorised as a lepton. Coined by Italian physicist Enrico Fermi in 1951 in his book Elementary Particles.

Pronunciation[edit]

  • IPA(key): /ˈmjuːɒn/
  • (file)

Noun[edit]

muon (plural muons)

  1. (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.

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Dutch[edit]

Dutch Wikipedia has an article on:
Wikipedia nl

Etymology[edit]

Contraction of mu-meson

Pronunciation[edit]

  • (file)
  • Hyphenation: mu‧on

Noun[edit]

muon n (plural muonen)

  1. (physics) muon

Esperanto[edit]

Noun[edit]

muon

  1. accusative singular of muo