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Particles - subparticles - subsubparticles

  1. Dec 27, 2014 #1
    Why recent particle physicists don’t consider models of particles (quarks, leptons)
    built from more light subparticles?
    Is there problems of principle
    or the available experimental data don’t need similar models?
  2. jcsd
  3. Dec 27, 2014 #2

    Vanadium 50

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    Before you ask why something is so, uiut's a good idea to find out if it is so. The LHC experiments have published about a dozen papers searching for such things. And not finding them.
  4. Dec 28, 2014 #3


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    As an example, there were the old preon models but the binding energies well exceeded quark, lepton rest masses. More recently, new preon models are coming from q-deformed LQG where "preon configurations" come about by an entirely different mechanism and so does not necessarily suffer from the drawback of the old models.
    Last edited: Dec 28, 2014
  5. Dec 29, 2014 #4


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    but afaik there has not been much progress (or even research activities) over the last couple of years
  6. Dec 29, 2014 #5


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    Yes - afaik.
  7. Dec 31, 2014 #6
    If something is not forbidden, it is possible.

    I find preon hypothesis interesting, but not sufficiently deep.
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