More quantum physics: quarks hit by photons and what does a z boson do?

Simon told me about strong force and what happens to a quark inside a nucleon if a high energy photon hits it and pushes it outside the nucleon: a new quark and antiquark are created.

But what if the photon was so strong that it pushed the quark even further? It would create another quark and another antiquark.

Then Simon switched over to drawing Feynman diagrams to show how a w boson emitted by a quark or a changes that quark or lepton (charm to strange, bottom to top, electron to electron neutrino, etc.) “We don’t know what the z boson does” , Simon says. “Maybe it’s there for no reason!”

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