%0 Journal Article
%T Power Counting For and Symmetries of the Effective Field Theory For NN Interactions
%A Mark B. Wise
%J Physics
%D 1999
%I arXiv
%X The appropriate power counting for the effective field theory of NN interactions is reviewed. It is more subtle than in most effective field theories since in the limit that the S-wave NN scattering lengths go to infinity it is governed by a nontrivial fixed point. The leading two body terms in the effective field theory for nucleon self interactions are scale invariant and invariant under Wigner SU(4) spin-isospin symmetry in this limit. Higher body terms with no derivatives (i.e., three and four body terms) are automatically invariant under Wigner symmetry.
%U http://arxiv.org/abs/hep-ph/9904509v1