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Originally Posted by AntonioLao Electron is not composite as far as quantum field theory is concerned or in other words substructure could not be found by high energy experiments. However, it is widely accepted that a proton is composite of 2 up-quarks and 1 down-quark. So, many believe that it should somehow decay. |
I see. Does this principle of "particle has suvstructure therefore it decays" apply only to femrions, or also to bosons?
(I ask because in my theory photon is not fundamental, so it shoudl decay?)