Now that we have apparent CPT violation for quarks, just as for the neutrinos and neutrons, let us look at what is common between neutrons and quarks. Recall that the Bilson-Thompson braids for quarks use both charged and neutral strands, with a choice of charged strand dictating color. If we mix the three quarks in a proton or neutron, we obtain a total of $12$ or $15$ neutral strands respectively.
In the case of the proton, this is exactly enough strands to build one complete set of four neutrinos, including two mirror neutrinos. For the neutron, or a single quark, there are three neutral strands left over. One is then forced to select a normal or mirror neutral component, thereby breaking the CPT symmetry.
6 years ago