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Radiative Kaon Decays and the Penguin Contribution to the Delta I = 1/2 Rule

Jean-Marc Gerard·Christopher Smith·Stephanie Trine
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Abstract

A consistent census of penguins in the Delta I = 1/2 rule is taken from the eta0 pole contribution to the radiative KL to gamma gamma, KS to pi0 gamma gamma and K+ to pi+ gamma gamma decay modes. We briefly comment on its impact for KL to pi0 pi0 gamma gamma, KL to pi+ pi- gamma and check its compatibility with the KL - KS mass difference and the CP violating epsilon-prime / epsilon parameter.

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Jean-Marc Gerard, Christopher Smith, Stephanie Trine. 2005-08-17. Radiative Kaon Decays and the Penguin Contribution to the Delta I = 1/2 Rule. https://doi.org/10.1016/j.nuclphysb.2005.09.040

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