Here we suggest an experiment that will be able to contradict at least one of the Strong Interaction theories: QCD or Comay’s model.
According to QCD, baryons contain three quarks, and no other kind of massive particles. Gluons glue the quarks and make the proton stable (see fig. 1). Comay’s model assumes that baryons have a massive core and that the three observable quarks occupy an outer energy shell. Beside the three valence quarks, there are inner closed shells of quarks. The system is analogous to a multi-electron atom (see fig. 2). It is agreed that according to Field Theory, there is a probability of finding additional quark-antiquark pairs inside hadrons.
With regard to mesons, both models agree that they are composed of a quark and antiquark and contain no other massive particles (see figs. 3,4).
|Fig. 3. A pi+ according to QCD. Quark and antiquark attracted to each other via gluons||Fig. 4. A pi+ according to Comay’s model. Quark attracts antiquark because they have opposite sign of magnetic charge (analogous to the positronium)|
An experiment conducted at Stanford Linear Accelerator Center (SLAC) during the 1970’s, where an electron beam hits a proton target, showed that the quarks and the quark-antiquark pairs carry only about one half of the proton’s mass. According to QCD, the gluons carry the other half of the proton’s mass.
If QCD is correct, then in the case of pi-meson, which consists of quark and antiquark glued by gluons, the gluons should carry a non-negligible part of the mass of the pi-meson as well.
On the other hand, in Comay’s model, there are no gluons and mesons have no core. Therefore, in the meson case, the entire mass should be found in the quark-antiquark components.
The decisive experiment would thus be similar to the 1970’s SLAC experiment, but this time an energetic electron beam collides with a pion beam. Analysis of the result of the deep inelastic collision would reveal one of the following possibilities:
• All the mass of the pi-meson can be attributed to the quark-antiquark components (QCD is refuted).
• The gluons take not much less than one half of the pi-meson mass. (Comay’s model is refuted).
• The pi-meson mass is incompatible with both of the above (both theories are refuted).
We kindly request that people who are willing and able to help with this experiment contact Ofer Comay’s email (see right panel), or write their comments and ideas inside this blog.