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Chiral loop corrections and isospin violation effects in epsilon'/epsilon

A. Pich
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Abstract

A complete analysis of isospin breaking in $K\to 2π$ amplitudes, including both strong and electromagnetic corrections at next-to-leading order in chiral perturbation theory, has been achieved recently. We discuss the implication of these effects, together with the previously known chiral loop corrections, on the direct CP-violating ratio epsilon'/epsilon.

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A. Pich. 2004-03-04. Chiral loop corrections and isospin violation effects in epsilon'/epsilon. https://doi.org/10.1016/j.nuclphysbps.2004.04.171

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