Assertion: baryon's quark | /r/HasProperty | charm
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Source sentences:
text: _{\rm {cc}}^{++}} is the first baryon discovered with two heavy quarks (charm and/or bottom) and a light quark.
text: A 1970 idea of Sheldon Glashow, John Iliopoulos, and Luciano Maiani, known as the GIM mechanism, showed that the flavor-changing decays would be strongly suppressed if there were a fourth quark, charm, that paired with the strange quark.