Scalar-involved three-point Green functions and their phenomenology

We analyze within the framework of resonance chiral theory the ⟨SAμAν⟩ and ⟨SVμVν⟩ three-point Green functions, where S, Aμ and Vμ are short for scalar, axial-vector and vector SU(3) hadronic currents. We construct the necessary Lagrangian such that the Green functions fulfill the asymptotic constraints, at large momenta, imposed by QCD at leading order. We study the implications of our results on the spectrum of scalars in the large−NC limit, and analyze their decays