Abstract
We discuss the applications of the Laplace transform sum rules to the three-point functions involving two baryons and one meson. Evaluating the QCD part of these three-point functions in the symmetrical subtraction configuration, where all external masses are equal and much larger than Λ QCD, we obtain relations between the pseudoscalar meson-nucleon couplings ( g π N N , g η N N ), the vector meson-nucleon tensor couplings ( G T ϱ N N , G T ω N N ) to quark masses and quark vacuum condensates.
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