QCD anomalies in hadronic weak decays
High Energy Physics - Phenomenology
2008-11-26 v1
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.
Cite
@article{arxiv.hep-ph/0402158,
title = {QCD anomalies in hadronic weak decays},
author = {J. -M. Gerard and S. Trine},
journal= {arXiv preprint arXiv:hep-ph/0402158},
year = {2008}
}
Comments
13 pages