2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47181We briefly discuss the first direct experimental evidence from LEP2 on non-vanishing trilinear couplings among the weak vector bosons. Subsequently we review the improved Born approximation to include radiative corrections. Provided the appropriate high-energy scale is used for the SU(2) gauge-coupling, the improved Born approximation is sufficiently accurate for all practical purposes at LEP2.9 pages, Latex, 2 postscript figures includedHigh Energy Physics - Phenomenologytext