# On the scalar nonet in the extended Nambu Jona-Lasinio model - High Energy Physics - Phenomenology

Abstract: We discuss the lightest scalar resonances, $f 0600$, $\kappa800$,$a 0980$ and $f 0980$ in the extended Nambu Jona-Lasinio model. We findthat the model parameters can be tuned, but unnaturally, to accommodate forthose scalars except the $f 0980$. We also discuss problems encountered inthe K Matrix unitarization approximation by using $N c$ counting technique.

Author: Ming-Xian Su, L. Y. Xiao, H. Q. Zheng

Source: https://arxiv.org/