英和和英

発音

• IPA: /ˈmjuːɒn/
• 韻: -uːɒn

名詞

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.

   • 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.

派生語

Further reading

• muon on Wikipedia.Wikipedia

アナグラム

• moun