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QCD anomalies in hadronic weak decays

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Gérard, Jean-Marc [UCL] Trine, Stéphanie

(eng) 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

Bibliographic reference Gérard, Jean-Marc ; Trine, Stéphanie. QCD anomalies in hadronic weak decays. (2004) 12 p. pages
Permanent URL http://hdl.handle.net/2078/30907