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arXiv · hep-ph/0402158

QCD anomalies in hadronic weak decays

J. -M. Gerard·S. Trine
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Abstract

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.

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J. -M. Gerard, S. Trine. 2004-02-16. QCD anomalies in hadronic weak decays. https://doi.org/10.1103/physrevd.69.113005

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