QCD anomalies in hadronic weak decays

Details QCD anomalies in hadronic weak decays QCD anomalies in hadronic weak decays

2004-02-16

arxiv.org/abs/hep-ph/0402158v1

Phys.Rev.D69:113005,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages

Scientific paper

10.1103/PhysRevD.69.113005

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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