We present the results obtained in the three-flavour (Nf=3) Nambu--Jona-Lasinio model which is extended by the U(1)A breaking six-quark 't Hooft interaction and eight-quark interactions. We address the problem of stability, and some phenomenological consequences of the models with multi-quark interactions.
@article{arxiv.0910.0371,
title = {Extended NJL model with eight-quark interactions},
author = {A. A. Osipov and B. Hiller and A. H. Blin and J. Moreira},
journal= {arXiv preprint arXiv:0910.0371},
year = {2009}
}
Comments
4 pages, prepared for the "Mini-Workshop Bled 2009: Problems in multi-quark states"