2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52161The extension of the Veneziano-Yankielowicz effective Lagrangian with terms including covariant derivatives is discussed. This extension is important to understand glue-ball dynamics of the theory. Though the superpotential remains unchanged, the physical spectrum exhibits completely new properties.4 pages, LaTeX; Contributed to EURESCO Conference "What comes beyond the Standard Model?" in Portoroz, Slovenia, 12-17 July 2003High Energy Physics - Theorytext