Quark generations refer to the classification of quarks into three distinct groups based on their mass and properties, which are essential to understanding the behavior of particles in particle physics. Each generation consists of two types of quarks: one up-type quark and one down-type quark. The interactions among these quarks and their mixing play a vital role in the formation of hadrons, as well as the phenomena explained by the CKM matrix, which describes how quarks can transform between generations during weak interactions.
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