LEPTONS
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FROM:
Standard Model of Fundamental Particles and Interactions
Leptons are the fundamental constituent of matter other than quarks.
There are six types of Leptons. Three flavors, the electron neutrino, muon neutrino, and tau neutrino, have no charge. The other three flavors, electron, muon, and tau, each have an electric charge of -1.
The electron has the least mass of any type of charged lepton. It is the only stable lepton because the law of conservation of energy and electric charge keep it together.
The muon and the tau are both massive compared to the electron. However, they are much more unstable.
The muon tends to decay into a muon neutrino, anti-electron (positron), and an electron.
The tau can decay in a number of ways, such as into a strange quark and an anti-up quark, or into a down quark and an anti-up quark.
The three neutrino types have no charge and only limits set on their masses, so unsure are scientists of these masses.
There are six types of Leptons. Three flavors, the electron neutrino, muon neutrino, and tau neutrino, have no charge. The other three flavors, electron, muon, and tau, each have an electric charge of -1.
The electron has the least mass of any type of charged lepton. It is the only stable lepton because the law of conservation of energy and electric charge keep it together.
The muon and the tau are both massive compared to the electron. However, they are much more unstable.
The muon tends to decay into a muon neutrino, anti-electron (positron), and an electron.
The tau can decay in a number of ways, such as into a strange quark and an anti-up quark, or into a down quark and an anti-up quark.
The three neutrino types have no charge and only limits set on their masses, so unsure are scientists of these masses.