2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/181539Experimental results on event shapes obtained within (or related to) the method of Effective Charges are discussed in view of measurements of the strong coupling, alpha_s, the beta-function and non-perturbative contributions to event shapes. The data strongly advocate to use of the ECH scheme instead of the conventional MSbar scheme.11 pages, 12 figures, FRIF Workshop on First Principles Non-Perturbative QCD of Hadron JetsHigh Energy Physics - Experimenttext