Encyclopedia > Lepton

  Article Content

Lepton

A lepton (Greek for "light", as opposed to hadrons which are "heavy") is a subatomic particle that is not made of quarks. The leptons are the electron, the muon, the tau, and their respective neutrinos.

All known leptons have a negative or neutral charge. There are 6 types of lepton, 3 of which are negative, the other 3 neutral.

A Table of the Leptons

Name Charge Mass(GeV)
Electron -1 0.000511
Electron Neutrino 0 ~0
Muon -1 0.1056
Muon Neutrino 0 ~0
Tau -1 1.777
Tau Neutrino 0 ~0

External Link

Authoritative information on particle properties is compiled by the Particle Data Group http://pdg.lbl.gov



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Creed

...     Contents Creed A creed is a statement of belief, usually religious belief. It is derived from the Latin credo for I believe. Christian creeds ...