The Low Energy Physics of Pion in the Relativistic Model with a Separable Interaction

I. Anikin；M. Ivanov；N. Kulimanova；V. Lyubovitskij

Chinese Journal of Physics

34卷3S期（1996 / 06 / 01）

944 - 948

英文

A Lagrangian formulation of the Nambu-Jona-Lasinio model with separable interaction is given. The electromagnetic interaction is introduced in a non-minimal way to the nonlocal quark current. Various choices of the vertex form factors characterizing the composite structure of mesons and baryon are investigated. We find that the physical observables depend very weakly on form factor shapes.