case. The other sector of large momenta, due to the strong binding, is partly screened by the short range NN repulsion. The main consequence is a strong dependence of the meson binding energies on the position of the $\Lambda(1405)$ resonance. In principle the shape of $\Lambda(1405)$ is tested by the invariant mass distribution in the decay $\Sigma\pi$ channel. In practice it is not so as the relevant energy region is located close to the $\Sigma\pi$ threshold. In this region the theoretical and experimental uncertainties are large.

5\) These states are very broad if the binding energies are less than 100 MeV. For stronger bindings, which are possible under the current values of the KN parameters the main mesonic decay modes may be closed. The widths for non-mesonic modes are hard to calculate and extrapolations from the emulsion data are not very reliable. New experiments are needed.

A simple physical picture emerges from this approach. The mesons are strongly correlated to slowly moving nucleons. The correlations are of the $\Lambda(1405)$ type at large densities, and of the $ \Sigma(1385)$ type in the peripheries. Each K,N pair has a good chance to stay also in the $\Sigma ,\pi$ form. The structure is 