Introduction to Extended Nambu-Jona-Lasinio Models

TL;DR

This paper introduces extended Nambu-Jona-Lasinio models, focusing on quark models with four-fermion interactions and their predictions for low-energy effective theories, emphasizing generality in predictions.

Contribution

It provides a comprehensive introduction to extended Nambu-Jona-Lasinio models, highlighting their broad predictive capabilities for low-energy parameters.

Findings

Predictions for low-energy effective Lagrangian parameters

Emphasis on generality of model predictions

Contribution to the DAPHNE Physics Handbook

Abstract

A short introduction to quark models with four fermion terms and their predictions for the parameters of low-energy effective Lagrangians is given. Special attention is paid to predictions that are as general as possible. Contribution to the Second DAPHNE Physics Handbook, eds. L. Maiani, G. Pancheri and N. Paver.