2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48203The quark-antiquark interaction from the NRQCD Lagrangian is studied in the Wilson loop formalism.4 pages, Latex (worldsci.sty). Talk presented at the Third International Conference on Quark Confinement and the Hadron Spectrum, Jefferson Lab, Newport News, Virginia, June 7-12, 1998; to appear in the ProceedingsHigh Energy Physics - Phenomenologytext