QCD anomalies in hadronic weak decays

Gérard, Jean-Marc;Trine, Stéphanie

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(en) We consider the flavour-changing operators associated with the strong axial and trace anomalies. Their short-distance generation through penguin-like diagrams is obtained within the QCD external field formalism. Standard-model operator evolution exhibits a suppression of anomalous effects in K and B hadronic weak decays. A genuine set of dimension-eight Delta S = 1 operators is also displayed. Comment: 13 pages
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QCD anomalies in hadronic weak decays. (n.d.). https://hdl.handle.net/2078.5/256738