lepton
Noun
Meaning
an elementary particle that participates in weak interactions; has a baryon number of 0
100 lepta equal 1 drachma in Greece
Source: WordNetSynonyms
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Examples
Because lepton numbers must be conserved, one of the product neutrinos of muon decay must be a muon-type neutrino and the other an electron-type antineutrino (antimuon decay produces the corresponding antiparticles, as detailed below).
Besides this spin characteristic, fermions have another specific property: they possess conserved baryon or lepton quantum numbers.
During the lepton epoch the temperature of the Universe was still high enough to create lepton/anti-lepton pairs, so leptons and anti-leptons were in thermal equilibrium.
Electrons have the lowest mass of any charged lepton (or electrically charged particle of any type) and belong to the first- generation of fundamental particles.
Its mechanism is as follows: The negative pion has spin zero, therefore the lepton and antineutrino must be emitted with opposite spins (and opposite linear momenta) to preserve net zero spin (and conserve linear momentum).
In comparison, XFS and NFS variants deployed by other server brands have shown more limited results, as Quark + Lepton also points out.