muon – מילון אנגלי-אנגלי
muon
n.
unstable lepton, tiny particle that can have a negative or positive charge
Muon
The
muon (; from the
Greek letter
mu (µ) used to represent it) is an
elementary particle similar to the
electron, with
electric charge of -1
e and a , but with a much greater mass . It is classified as a
lepton, together with the
electron (mass ), the
tau (mass ), and the three
neutrinos (electron neutrino , muon neutrino and tau neutrino ). As is the case with other leptons, the muon is not believed to have any sub-structure—that is, it is not thought to be composed of any simpler particles.
muon
Noun
1. an elementary particle with a negative charge and a half-life of 2 microsecond; decays to electron and neutrino and antineutrino
(synonym) negative muon, mu-meson
(hypernym) lepton
muon
nm.
muon, unstable lepton, tiny particle that can have a negative or positive charge
Muon
A heavy cousin of the
electron, being a
lepton. It has a rest mass 206 times that of an electron, and it (and its positive antiparticle) have a mean life of 2.2 microseconds to decay into an electron (or positron) and a neutrino and an antineutrino. Being a
fermion, it has an intrinsic spin quantum number of 1/2. Muons originate from the decay of charged pi-mesons (mean life 0.026 µsec) which are produced in high energy (> 140 MeV) nuclear reactions.
