2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/40141It is shown that the empirical rule that the masses of the stable mesons and baryons of the gamma-branch are integer multiples of the mass of the pi0 meson with a maximal deviation of 3.3% holds also for the meson and baryon resonances, regardless whether the spin of the particles is 0 or 1/2. It is also shown that the masses of the particles with weak decay are integer multiples of the mass of the charged mesons times a common factor 0.853.7 pages, 3 figures. See: hep-lat/0002016, hep-lat/0005027High Energy Physics - Phenomenologytext