Classifying Particles

Classifying Particles

1. Matter and Anti-matter

   • Hadrons
     • Are not fundamental- can be broken down
     • Mesons
       • Mass between that of an electron and a proton
       • Made up of a quark and an anti-quark
       • Pion
         • Pion can be positive, negative or neutral
         • π
       • Kaon
         • Must contain a strange quark
         • k
     • Baryons
       • Mass is always greater of equal to that of a proton
       • Made up of 3 quarks
       • Proton
         • p
           • Antiproton
             • Contains 2 ups and 1 down- anti
       • Neutron
         • n
           • Antineutron
             • Contains 1 up and 2 downs-anti
   • Leptons
     • Fundamental- don't break down
     • Interact through nuclear weak force
     • Muon
       • Heavier than the electron
       • μ
         • Antimuon
           • Muon flavoured neutrino
             • Vμ
     • Tau
       • Heavier than the electron
       • t
         • Antitau
           • Tau flavoured neutrino
             • Vt
     • Electron
       • e
         • Positron
           • e+
             • Electron flavoured neutrino
               • Ve
   • Quarks

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