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We discuss the dynamical generation of some low-lying $1/2^+$ $\Sigma$'s and$\Lambda$'s in two-meson one-baryon systems. These systems have beenconstructed by adding a pion in $S$-wave to the $\bar{K} N$ pair and itscoupled channels, where the $1/2^-$ $\Lambda$(1405)-resonance gets dynamicallygenerated. We solve Faddeev equations in the coupled-channel approach tocalculate the $T$-matrix for these systems as a function of the total energyand the invariant mass of one of the meson-baryon pairs. This squared$T$-matrix shows peaks at the energies very close to the masses of thestrangeness -1, $1/2^+$ resonances listed in the particle data book.

Three-body hadronic structure of low-lying $1/2^+$ $\Sigma$ and $\Lambda$ resonances