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arXiv · 2012.09483

Nonleptonic $K\to 2\,\pi$ decay dynamics

Hector Gisbert
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Abstract

Using Chiral Perturbation Theory to properly account for the dynamics of nonleptonic $K\to 2\,\pi$ decays, we found the Standard Model prediction for the CP violating ratio $\mbox{Re}\left(\varepsilon'/\varepsilon\right)=\left(14\pm 5\right) \times 10^{-4}$, where isospin breaking effects are included, in perfect agreement with the current experimental world average. Similar results have been reported by a recent release of improved lattice data.

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Hector Gisbert. 2020-12-17. Nonleptonic $K\to 2\,\pi$ decay dynamics. https://arxiv.org/abs/2012.09483

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