Let me try to be more specific on this point: Ø
Ø Protons do not decay in a cold state, but if accelerated fast enough (as at CERN) – they will decay to 4 muons after a collision. This does not absolutely mean that protons are made of muons, but it is an indication of some kind of cross-identity... The reason there are 4 instead of 9 may relate to antimuon annihilation. Here is a reference from CERN on the Higgs boson process in which protons are collided at high energy to form muons. http://home.web.cern.ch/images/2014/01/higgs-boson-decay-four-muons Note that in this collision, the only massive particles with any appreciable lifetime are the protons being collided and the muons seen in the debris. The Higgs boson may or may not have existed at all, and everything else is converted into energy – within picoseconds. On the surface, this happenstance could be argued (if you support the Stubbs theory) to demonstrate that a proton is built of 9 basic particles – 4 muons and 5 antimuons. The antimatter does not survive for any appreciable time, so the only particles remaining after high energy proton decay are the 4 muons, and they too decay quickly, but can be said to be the only mass in the debris which is identifiable for an appreciable time (nanoseconds).
