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A difference between the behavior of a process and its charge-parity transformed process, observed in weak interactions and represented in the Standard Model by physical complex phases in flavor mixing.
wp-physics-kaon_cp_violation_experimentpdg-2026-ckmpdg-rppEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
With three nondegenerate quark generations, a nonzero rephasing-invariant CKM phase permits CP-violating weak-interaction observables, while the measured magnitude remains process dependent.
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
pdg-2026-ckmEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Neutral-kaon decay measurements established CP violation by comparing decay behavior and time evolution in the kaon system, while later measurements test its detailed flavor-sector description.
The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.
pdg-2026-ckmpdg-rpp