Particles - subparticles - subsubparticles

  • #1
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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?
 

Answers and Replies

  • #2
Vanadium 50
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Why recent particle physicists don’t consider models of particles (quarks, leptons)
built from more light subparticles?

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.
 
  • #3
julian
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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.
 
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  • #4
tom.stoer
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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.
but afaik there has not been much progress (or even research activities) over the last couple of years
 
  • #5
julian
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but afaik there has not been much progress (or even research activities) over the last couple of years
Yes - afaik.
 
  • #6
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If something is not forbidden, it is possible.

I find preon hypothesis interesting, but not sufficiently deep.
 

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