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Phenomenological test of the large N\_c ChPT predictions for the pseudoscalar mixing parameters

. (Nov 10, 2005)

Abstract

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.

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