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Quarks are smaller then electrons? Are they real or virtual?

  1. Jun 14, 2007 #1
    Quarks are smaller then electrons?
    I read that when a electron moves from a higher energy level orbit to a lower energy level orbit it emits a "real" quark... So are other quarks virtual?
  2. jcsd
  3. Jun 14, 2007 #2
    An electron emits a photon when transitions between energy levels. A virtual photon is a force carrier for the electromagnetic field.
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