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QCD Accurately Predicts the Induced Pseudoscalar Coupling Constant

V. Bernard, N. Kaiser, Ulf-G. Meißner

hep-pharXiv:hep-ph/9403351

Abstract

Using chiral Ward identities of QCD, we derive a relation for the induced pseudoscalar coupling constant which is accurate within a few percent, gP = 8.44 0.16.

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