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The quark model postulates that the hadrons such as protons and neutrons have an inner structure; quarks.
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How can a pion have a mass, given it's a "field mediator" and created/destroyed continuously?
Maybe some of my assumptions here are basically wrong, but isn't it true that
pion is the "mediator" for the strong force field.
the quantum field theory basically says that there are no fields, in …