There are 6 types of lepton. A lepton is a type of
fermion with a charge of 0 or -1
Electron
Muon Tau
Electron neutrino
Muon neutrino
Tau neutrino
Electrons and neutrinos are stable, while the Tau and Muon are heavier and tend to decay quickly.
Lepton Decay.
Neutrinos are very hard to detect, due to their tiny masses and their lack of charge, but lately several neutrino observatories like the
Super-Kamiokande have been built