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Search results with tag "The standard model"
Elementary Particles in Physics - University of Pennsylvania
www.physics.upenn.eduoutlines of the standard model and its possible extensions. Classification of Particles The particles that have been identified in high-energy experiments fall into dis-tinct classes. There arethe leptons (see Electron, Leptons, Neutrino, Muonium), all of which have spin 1 2. They may be charged or neutral. The charged lep-