Kaon Physics: Theory Overview

TL;DR

This paper reviews the theoretical aspects of kaon decays, emphasizing their role in testing the Standard Model, exploring CP violation, and probing potential new physics through a combination of QCD and effective field theories.

Contribution

It provides a concise overview of the theoretical framework and recent developments in kaon decay studies, highlighting key decay modes and analysis techniques.

Findings

Kaon decays are crucial for understanding CP violation.

Combining Operator Product Expansion with Chiral Perturbation Theory aids analysis.

Kaon decay studies can reveal physics beyond the Standard Model.

Abstract

Kaon decays have played a key role in the construction of the Standard Model and continue to be an important testing ground of the electroweak flavour theory. They can provide new signals of CP-violation phenomena and, perhaps, a window into physics beyond the Standard Model. The interplay of long-distance QCD effects in strangeness-changing transitions can be analyzed, combining the short-distance Operator Product Expansion with Chiral Perturbation Theory techniques. A brief overview is presented, focusing on a few selected decay modes. A more detailed and comprehensive review can be found in arXiv:1107.6001.