Abstract
We studied the applications of the anomaly sum rule (ASR) to the transition form factors of light pseudoscalar mesons: π0,η and η′. This nonperturbative QCD approach can be used even if the QCD factorization is broken. The status of possible small non-OPE corrections to continuum in comparison to BaBar and Belle data is explored. The accuracy of the applied method and the role of the quark mass contributions are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have