2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49726The present contribution reports a study of the effects of anomalous gauge and fermionic couplings in the process $e^+e^- -> W^+W^-$ at the Next Linear Collider focusing in particular on the option of polarized beams. We conclude that polarized beams with adjustable degree of polarization would constitute a very significant tool in the search for new physics.15 pages, 8 figures, contribution to ECFA-DESY working groupHigh Energy Physics - Phenomenologytext