S = −1 resonances in two meson-one baryon systems

摘要

We study the two meson-one baryon systems by solving Faddeev equations, using chiral dynamics. The calculations, carried out for the p[`(K)] Npi overline{K} N system and its coupled channels for the case of strangeness = −1, in the S-wave, lead to a dynamical generation of many strangeness = −1 resonances in the 1500–1800 MeV region. While building the formalism, we found important cancellations between different sources of three-body forces.