$O(p^6)$ extension of the large--$N_C$ partial wave dispersion relations

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/199405Continuing our previous work(JHEP 0706:030,2007), large--$N_C$ techniques and partial wave dispersion relations are used to discuss $ππ$ scattering amplitudes. We get a set of predictions for $O(p^6)$ low-energy chiral perturbation theory couplings. They are provided in terms of the masses and decay widths of scalar and vector mesons.7 pagesHigh Energy Physics - Phenomenology$O(p^6)$ extension of the large--$N_C$ partial wave dispersion relationstext