CHIRAL EFFECTIVE LAGRANGIAN DESCRIPTION OF BULK NUCLEAR-MATTER

Here we point out that the four-nucleon terms incorporate into lowest order non-linear chiral effective Lagrangians the same description of bulk nuclear matter contained in the Walecka model, that is generally considered satisfactory. We find this point worth noticing because, wh ile the Walecka model is an entirely phenomenological renormalizable m odel, non-linear chiral Lagrangians have a deep basis in elementary pa rticle physics, and, in this sense, are more fundamental.