Is the Higgs boson the only particle that gives mass?
This is a common misconception. The Higgs boson is not the source of mass itself; it is the quantum excitation of the Higgs field. The field is what gives mass to elementary particles through the Brout-Englert-Higgs mechanism. The Higgs boson is a consequence of the mechanism—its existence confirms that the field is real. However, most of the mass in the universe, such as that of protons and neutrons, comes from the strong nuclear force binding quarks together, not from the Higgs field. The Higgs mechanism only accounts for the masses of fundamental particles like quarks, leptons, and the W and Z bosons. So while the Higgs boson is a crucial piece of the puzzle, it is not the sole giver of mass. Experiment is the ultimate judge, but theory must guide the way.
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