The CKM matrix, or Cabibbo-Kobayashi-Maskawa matrix, describes the mixing of quark flavors in particle physics. It is crucial for understanding flavor-changing processes, particularly in B-physics, as it provides insights into how different types of quarks transform into one another through the weak interaction. The matrix elements indicate the probability amplitudes for transitions between different quark flavors, playing a key role in explaining phenomena like CP violation and the hierarchy of quark masses.
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