2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50583We derive an effective Lagrangian for meson fields. This is done in the light-cone gauge for two-dimensional large-N_c QCD by using the bilocal auxiliary field method. The auxiliary fields are bilocal on light-cone space and their Fourier transformation determines the parton momentum distribution. As the first test of our method, the 't Hooft equation is derived from the effective Lagrangian.1+10 pages including 4 figures, Latex, style files psfig.sty and wrapft.styHigh Energy Physics - TheoryHigh Energy Physics - Phenomenologytext