Ballot, J. L.Robilotta, M. R.Da Rocha, C. A. [UNESP]2014-05-272014-05-271998-04-01Physical Review C - Nuclear Physics, v. 57, n. 4, p. 1574-1579, 1998.0556-2813http://hdl.handle.net/11449/65434We assume that the nuclear potential for distances larger than 2.5 fm is given just by the exchanges of one and two pions and, for the latter, we adopt a model based on chiral symmetry and subthreshold pion-nucleon amplitudes, which contains no free parameters. The predictions produced by this model for nucleon-nucleon observables are calculated and shown to agree well with both experiment and those due to phenomenological potentials.1574-1579engArtigo10.1103/PhysRevC.57.1574Acesso aberto2-s2.0-00323897042-s2.0-0032389704.pdf