%0 Journal Article
%T On the large-$N_c$ behavior of the $L_7$ coupling in $¦Ö$PT
%A Santiago Peris
%A Eduardo de Rafael
%J Physics
%D 1994
%I arXiv
%R 10.1016/0370-2693(95)00160-M
%X It is shown that the usual large-$N_c$ counting of the coupling constant $L_{7}$ of the ${\cal O}(p^4)$ low-energy chiral $SU(3)$ Lagrangian \cite{GL85} is in conflict with general properties of QCD in the large-$N_c$ limit. The solution of this conflict within the framework of a chiral $U(3)$ Lagrangian is explained.
%U http://arxiv.org/abs/hep-ph/9412343v1