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Masses of fundamental particles

  1. Jul 3, 2010 #1
    How were the masses of fundamental particles(electrons,protons,neutrons) determined?
  2. jcsd
  3. Jul 3, 2010 #2
    Each is a long story of it's own...

    Start with the Electron:-
    Google the names JJ Thompson and Robert Millikan
  4. Jul 4, 2010 #3
    experimentally. we have no theory which describes their masses. They are inputs to the standard model of particle physics....not derived from it. (only because we are not smart enough yet.)
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