Reliability of K --> Pi Pi matrix element calculations
classification
✦ hep-ph
keywords
distancesupplementedcalculationcalculationschiralcontributioncontributionsdecays
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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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