Chiral Perturbation Theory Approach to NN Scattering Problem
arXiv:nucl-th/9802038
Abstract
It is shown that chiral perturbation theory (in its original form by Weinberg) can describe NN scattering with positive as well as negative effective range. Some issues connected with unnaturally large NN ^1S_0 scattering length are discussed.
8 pages(LaTeX), no figures. Contribution to Workshop on Perturbative Methods in Quantum Field Theory, Adelaide, Australia, 2-13 February 1998