Description of the [Formula omitted] and [Formula omitted] states as molecular states

In this work we study several [Formula omitted] and [Formula omitted] states dynamically generated from the meson-baryon interaction in coupled channels, using an extension of the local hidden gauge approach in the Bethe-Salpeter equation. These molecular states appear as poles of the scattering amplitudes, and several of them can be identified with the experimentally observed [Formula omitted] states, including the [Formula omitted], [Formula omitted], [Formula omitted], [Formula omitted] and [Formula omitted]. Also, for the recently reported [Formula omitted] state, we find two poles with masses and widths remarkably close to the experimental data, for both the [Formula omitted] and [Formula omitted] sectors.