Definitions for muonˈmyu ɒn

This page provides all possible meanings and translations of the word muon

Princeton's WordNet

  1. muon, negative muon, mu-meson(noun)

    an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino

Wiktionary

  1. muon(Noun)

    An unstable elementary particle in the lepton family, having similar properties to the electron but with a mass 209 times greater.

  2. Origin: Contraction of mu-meson (the particle has now been recategorised as a lepton).

Freebase

  1. Muon

    The muon is an elementary particle similar to the electron, with unitary negative electric charge and a spin of ¹⁄2. Together with the electron, the tau, and the three neutrinos, it is classified as a lepton. As is the case with other leptons, the muon is not believed to have any sub-structure at all. The muon is an unstable subatomic particle with a mean lifetime of 2.2 µs. This comparatively long decay lifetime is due to being mediated by the weak interaction. The only longer lifetime for an unstable subatomic particle is that for the free neutron, a baryon particle composed of quarks, which also decays via the weak force. Muon decay produces at least three particles, and these must include an electron of the same charge as the muon, plus two neutrinos of different types. Like all elementary particles, the muon has a corresponding antiparticle of opposite charge but equal mass and spin: the antimuon. Muons are denoted by μ− and antimuons by μ+. Muons were previously called mu mesons, but are not classified as mesons by modern particle physicists.²


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