>>12761543well, the neutral kaon in this experiment is its own antiparticle, so the fact that the reverse is is the same particle is the essence of CP violation. i bet there are CP violation experiments that might show some antimatter preference as opposed to latter preference as in the kaon version, but the fact that there is an asymmetry is what is important.
note that if you do a CPT reversal, then going backward in time the kaon prefers antimatter. but CPT basically can’t be violated
