Meson properties in a renormalizable version of the NJL model

Mota, Andre´ L.; Nemes, M. Carolina; Hiller, Brigitte; Walliser, Hans
March 2000
AIP Conference Proceedings;2000, Vol. 508 Issue 1, p368
Academic Journal
We construct a non-trivial and renormalized extension of the Nambu and Jona-Lasinio (NJL) model. This model is analogous in form to the linear σ-model. However, given the Nc dependence of the coupling constant, diagrams involving mesonic internal lines are absent in leading order, as opposed to the linear σ-model. Meson properties are systematically improved in the present calculations as compared to usual Pauli-Villars regularized versions. © 2000 American Institute of Physics.


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