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What is the World Made of? Leptons The other type of matter particles are the leptons.
There are six leptons, three of which have electrical charge and three of which do not.
They appear to be point-like particles without internal structure.
The best known lepton is the electron (e-). The other two
charged leptons are the muon( Quarks are sociable and only exist in composite particles with other quarks, whereas leptons are solitary particles. Think of the charged leptons as independent cats with associated neutrino fleas, which are very hard to see.
![]() For each lepton there is a corresponding antimatter antilepton. Note that the anti-electron has a special name, the "positron."
Trivia: "Lepton" comes from the Greek for "small mass," but this is a misnomer. Why? [Answer] |