Nucleon-nucleon Scattering Elastic scattering Forward-forward scattering, no disassociation(protons stay protons) b>>2 13Jun2007 Tsinghua University13-Jun-2007 Tsinghua University 3 Nucleon-nucleon Scattering b >> 2 rp Elastic scattering Forward-forward scattering, no disassociation (protons stay protons)