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Definition of muon
: an unstable lepton that is common in the cosmic radiation near the earth's surface, has a mass about 207 times the mass of the electron, and exists in negative and positive forms
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Recent Examples of muon from the Web
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However, measurements at the CERN collider have shown a definite propensity for the mesons to underproduce muons, as reported at CERN in April.
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There are three types of neutrino: the electron neutrino, the muon neutrino, and the tau neutrino.
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Over the next few weeks the Muon g-2 team will test the equipment installed around the magnet, which will be storing and measuring muons for the first time in 16 years.
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Muons are like electrons but heavier – with 200 times the mass.
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The amount of CP violation once again works like a seesaw, with the rate of muon-to-electron neutrino conversions on one side, and corresponding antineutrino conversions on the other.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'muon'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of muon
contraction of earlier mu-meson, from mu
Learn More about muon
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See words that rhyme with muon Britannica.com: Encyclopedia article about muon
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