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How does the Energy of a particle stay together?

  1. Jul 21, 2010 #1
    How does the Energy of a particle stay together in a sphere?

    Unlike photons, particles---electrons, neutrinos, quarks, etc-- hold onto their energy. But how? I use to speculate, thinking that maybe photons could fluctuate into some sort of endless ring/sphere of infinity creating a particle... but I'm really not sure.
  2. jcsd
  3. Jul 21, 2010 #2
    They are not spheres. They are structureless points (in SM). They dont need anything to hold them together.
  4. Jul 22, 2010 #3
    Well what causes energy to stand still in particles vs move and cover distance as in photons?
  5. Jul 22, 2010 #4


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    Energy isn't some physical object that can move around freely. It's a property of particles or systems that is conserved.
  6. Jul 22, 2010 #5
    I dont understand your question.
    I understand every word separately, but not the question at whole.
    Are you asking about the difference between particles without rest mass (photons) and particles with rest mass?
  7. Jul 22, 2010 #6
    Yeah that's what I'm asking
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