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

Guo, Z. H.; Sanz-Cillero, J. J.; Zheng, H. Q.

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

Authors

Guo, Z. H.

Sanz-Cillero, J. J.

Zheng, H. Q.

Description

Continuing 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 pages