Particle Physics

Particle Physics

1. Fundamental Particles

   • Leptons
     • Quarks
       • Gauge Bosons

2. Matter and Antimatter

   • Hadrons
     • Baryons
       • proton, neutron
         • Antibaryons
           • Antiproton, antineutron
         • Baryons eventually decay into protons.
       • Unstable apart from the PROTON
       • consist of 3 quarks/3 antiquarks
     • Mesons
       • eg pions and kions
         • Do not include protons in their decay
         • Kions have a strangness of 1/-1
           • -1= k minus and the k-zero bar
       • quark- antiquark pair
     • Hadrons interact through the strong nuclear force
   • Leptons
     • interact through the weak force
     • eg electron, mu minus, electron neutrino, muon neutrino
       • ANTILEPTONS OF EXAMPLES

3. Quarks

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