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Peláez Sagredo, José Ramón ; Brodsky, S. J ; Merino, C. ; Toumbas, N. | Elsevier Science BV | 2000-06We review our recent works on tests of perturbative QCD, inspired by the relation between the hadronic decay of the ? lepton and the e?e? annihilation into hadrons. First, we present a set of commensurate scale relations that probe the self-cons[...]texto impreso
We show how to fix the renormalization scale for hard scattering exclusive processes such as deeply virtual meson electroproduction by applying the BLM prescription to the imaginary part of the scattering amplitude and employing a fixed-t disper[...]texto impreso
We construct new phenomenological tests of perturbative QCD by considering a hypothetical au lepton of arbitrary mass which decays hadronically through the electromagnetic current. Its adronic branching ratio can be computed directly as an int[...]
