Phenomenological test of the large N_c ChPT predictions for the   pseudoscalar mixing parameters
  A phenomenological analysis of various decay processes is performed in order to test the large $N_c$ Chiral Perturbation Theory predictions for the octet and singlet pseudoscalar decay constants and mixing angles. The results obtained hint at a disagreement with the expectations of this theoretical framework although the statistical significance is still limited. 
R. Escribano (UAB & IFAE, Barcelona)