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

A. A. Bel'kov; A. V. Lanyov; A. Schaale; S. Scherer

paper

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

arXiv:hep-ph/9408368

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.

20 pages

An Effective Chiral Meson Lagrangian at O(P6) from the NJL Model

Abstract

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