Some Three-body force cancellations in Chiral Lagrangians

Abstract

The cancellation between off-shell two body forces and three body forces implies a tremendous simplification in the study of three body resonances in two meson-one baryon systems. While this can be done by means of Faddeev equations we provide an alternative and simpler derivation using just the chiral Lagrangian and the field re-parametrization invariance.

Comments: 6 pages. Contribution to the volume: Juan Antonio Morente Chiquero (1955-2012) In memorian. Editorial Universidad de Granada, 2013