Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.
Related to muon: muon neutrino


The negatively charged lepton that belongs to the second generation of elementary fermions and has a mass 207 times that of an electron and a mean lifetime of 2.2 × 10-6 second. Also called mu lepton.

[Earlier mu meson (from the use of the Greek letter mu, the equivalent of the Roman letter m of meson, to distinguish it from other mesons subsequently discovered, the class of particles to which it was formerly thought to belong).]

mu·on′ic adj.


(General Physics) a positive or negative elementary particle with a mass 207 times that of an electron and spin . It was originally called the mu meson but is now classified as a lepton
[C20: short for mu meson]
muonic adj


(ˈmyu ɒn)

an unstable lepton of mass approximately 207 times greater than the electron's mass.
[1950–55; shortening of earlier mu meson; see mu, mes-, -on1]
mu•on′ic, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.muon - an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino
lepton - an elementary particle that participates in weak interactions; has a baryon number of 0
References in periodicals archive ?
8 ( ANI ): A recent study has attributed muon imaging to have the ability to assess damage inside Fukushima nuclear reactors and locate the melted fuel from the core.
The results of the experiment could create new discoveries in the realm of particle physics, said Chris Polly, manager of the Muon g-2 project at Fermilab.
The fourth was scored by Vietnam midfielder Nguyen Thi Muon, who received a brilliant through-pass from the left of the area and needing to just slot the ball into the net.
1]) (Figure 4a), a muon neutrino if the disintegrated quark-antiquark pair (u0u0) is changed in flavor into ([d.
Muon flux at the ground level is strongly related with different thermodynamics processes in the Earth's atmosphere at a generation level (barometric, temperature effects) and with more complex wave processes in the upper troposphere (gravitational wave of air density), correlated with different turbulent and wave processes of a geophysical origin (powerful thunderstorms, hurricanes) ([TEXT NOT REPRODUCIBLE IN ASCII] 1983, 1984; [TEXT NOT REPRODUCIBLE IN ASCII] 1988).
To date, we've got bosons, fermions, leptons, muons, pions, neutrinos, photons, gluons, and gravitons.
A research team headed by chemistry professor Paul Percival, MCIC, has developed a proposal to build a new muon beam line at TRIUMF.
Just as X-ray images of your teeth reveal cavities, the detector's record of muon levels will help Manchaca-Rocha pinpoint chambers.
Only in depth greater than ~3 m, production by muon interactions becomes important as well (Heisinger et al.
As muons approach the warhead, their path will be bent as a function of their momentum, and it can be ascertained how much momentum was lost during their trip through the warhead, thereby constructing a picture of the warhead along the path that each muon takes.
If the number of muon neutrinos observed in the Super-Kamiokande detector is smaller than the number right after firing, it can be concluded that the particles oscillated into tau neutrinos, which would support the hypothesis that neutrinos have mass, they said.
The model has application to high-energy muon colliders as well as IFE.