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interaction can be measured
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interaction can be measured - 03-25-2005, 11:51 AM

when a high-energy experiment is done by bombarding the quarks with neutrinos the collision cross section is practically zero. This means that the quarks have no spatial extension. But collision cross sections came from an exisiting interaction. This interaction implies the existing of force particles such as the vector bosons: photon, W+, W-, Z0, gluons (cannot be isolated), graviton (not yet detected), together with the scalar boson called Higgs boson (not yet detected).
  
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