Higgs Bozons Explained

Physicists have been trying to explain why the ws and zs are heavy but the photon is not. They think new undiscovered types of higgs bozons might explain this balance between matter and anti matter. But they would be free to violate c p symmetry, which says that if a process violates c p symmetry then you can create more matter than anti matter. And so they can explain why, in the early universe, when matter and anti matter were created equally, some of that annihilation turned back into just matter instead of anti matter.