Abstract
We compare the linear meson model and chiral perturbation theory in next to leading order in the quark mass expansion. In particular, we compute the couplings \(L_4\)–\(L_8\) of chiral perturbation theory as functions of the parameters of the linear model. They are induced by the exchange of \(0^{++}\) scalar mesons. We use a phenomenological analysis of the effective vertices of the linear model in terms of pseudoscalar meson masses and decay constants. Our results for the \(L_i\) agree with previous phenomenological estimates.
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