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arXiv · hep-ph/9408368

An Effective Chiral Meson Lagrangian at $O(P^6)$ from the NJL Model

A. A. Bel'kov·A. V. Lanyov·A. Schaale·S. Scherer
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Abstract

In this work we present a strong chiral meson Lagrangian up to and including $O(p^6)$ in the momentum expansion. It is derived from the Nambu--Jona-Lasinio (NJL) model using the heat-kernel method. Identities related to the properties of covariant derivatives of the chiral matrix $U$ as well as field transformations have been used to obtain a minimal set of linearly independent terms.

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A. A. Bel'kov, A. V. Lanyov, A. Schaale, S. Scherer. 1994-08-25. An Effective Chiral Meson Lagrangian at $O(P^6)$ from the NJL Model. https://arxiv.org/abs/hep-ph/9408368

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