Abstract
We study the vertex function of two vector and one axial-vector operators in the soft-wall holographic model of QCD. In particular, we discuss the possible relation, introduced by Son and Yamamoto, between one of the structure functions, wT, describing such a vertex when one of the two vector currents represents an on-shell soft photon and the two-point Π⊥VV–Π⊥AA correlator.
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