How To Use Charm quark In A Sentence

• The charm quark stays effectively at rest inside the baryon because it is much more massive than the up, down and strange quarks.
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• Not just another ad hoc addition to the company of quarks, the charm quark did so many things in a simple, economical package.
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• At this energy level, two more quarks, the strange and charm quarks, exist.
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• The charm quark is roughly one and a half times the mass of the proton.
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