Comparison of potential models with the np scattering data below 350 MeV

As a follow-up on our earlier paper we calculate the ${\mathrm{\chi }}^2$ of various NN potential models with respect to the np scattering data. We find that only the most recent potential models give a reasonably good description of these data. Almost none of the potentials is truly an NN potential in the sense that it gives a good description of both pp and np scattering simultaneously.