negative muon

Noun
Synonyms: muonmu-meson

WordNet 3.0

Noun (1)

  1. an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrinoSynonyms: muonmu-meson
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Webster's Dictionary (GCIDE)

lepton \lepton\ n. (Physics) an elementary particle that participates in weak interactions but does not participate in the strong interaction; it has a baryon number of 0. Some known leptons are the electron, the negative muon, the tau-minus particle, and the neutrinos associated with each of these particles. [WordNet 1.5 +PJC]
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