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Reliability of K --> Pi Pi matrix element calculations

E. A. Paschos
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Abstract

I demonstrate that the short distance contribution to K --> Pi Pi decays must be supplemented with large distance effects. A hybrid calculation is outlined based on QCD diagrams supplemented by chiral contributions and Pi-Pi phaseshifts.

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E. A. Paschos. 2001-09-28. Reliability of K --> Pi Pi matrix element calculations. https://arxiv.org/abs/hep-ph/0109284

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