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arXiv · hep-ph/9704345

The Linear Meson Model and Chiral Perturbation Theory

Dirk-U. Jungnickel·C. Wetterich
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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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Dirk-U. Jungnickel, C. Wetterich. 1997-04-17. The Linear Meson Model and Chiral Perturbation Theory. https://doi.org/10.1007/s100520050161

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