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Reduction of Vector and Axial--Vector Fields in a Bosonized Nambu--Jona--Lasinio Model

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

We derive the effective action for pseudoscalar mesons by integrating out vector and axial--vector collective fields in the generating functional of the bosonized NJL--model. The corresponding modifications of the nonlinear effective Lagrangian and the bosonized currents, arising at $O(p^4)$, are discussed.

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A. A. Bel'kov, A. V. Lanyov, A. Schaale. 1993-07-26. Reduction of Vector and Axial--Vector Fields in a Bosonized Nambu--Jona--Lasinio Model. https://arxiv.org/abs/hep-ph/9307331

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