# $S=-1$ Meson-Baryon Unitarized Coupled Channel Chiral Perturbation Theory and the $S {01}-$ $Λ$(1405) and $- Λ$(1670) Resonances

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The $s-$wave meson-baryon scattering is analyzed for the strangeness $S=-1$ and isospin I=0 sector in a Bethe-Salpeter coupled channel formalism incorporating Chiral Symmetry. Four channels have been considered: $\pi \Sigma$, $\bar K N$, $\eta \Lambda$ and $K \Xi$. The required input to solve the Bethe-Salpeter equation is taken from lowest order C

Author: C. Garcia-Recio; J. Nieves; E. Ruiz Arriola; M. J. Vicente Vacas

Source: https://archive.org/