Axial Anomaly and Light Cone Distributions
classification
✦ hep-ph
keywords
anomalyaxialamplitudesapproachbabarbellebrokencomparison
read the original abstract
Axial anomaly leads to exact sum rules for transition form factors providing the important constraints to respective distribution amplitudes. This rigorous NPQCD approach is valid even if QCD factorization is broken. The status of possible small non-OPE corrections to continuum in comparison to BABAR and BELLE data is discussed.
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