How do you explain that electrons have a rest mass, but photons don't (otherwise photons couldn't move with the speed of light according to special relativity)?
Because what we see as a photon is a the one bozon left without a pair of one of the four pre-Higgs bozons that exist prior to the electroweak symmetry breaking. That's how all of them get mass.
How do you explain that electrons have a rest mass, but photons don't (otherwise photons couldn't move with the speed of light according to special relativity)?