Rare kaon decays and CP violation

Antonio Pich

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arXiv · 2001.11350

Rare kaon decays and CP violation

Antonio Pich

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Abstract

Owing to the strong suppression of flavour-changing neutral-current transitions in the Standard Model, rare kaon decays constitute a superb tool to constrain hypothetical new-physics interactions. At the same time, they provide many interesting tests of the Standard Model itself, being sensitive both to short-distance electroweak scales and to the long-distance QCD dynamics. A brief overview of the current status is presented. The Standard Model prediction for the direct CP-violating ratio $\varepsilon'/\varepsilon$ is also discussed.

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Antonio Pich. 2020-01-29. Rare kaon decays and CP violation. https://arxiv.org/abs/2001.11350

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