A NucleonNucleon Interaction Consistent with Theory and Experiment
Abstract
The nucleonnucleon data are fitted by a boundary condition model interaction determined largely by theoretical forms. Oneand twopion, ρ, ω, and η meson exchange adiabatic local potentials determine the interaction outside r_{0}~12μ^{1}. Only the twopionexchange contribution contains a degree of ambiguity measured by the parameters ξ and λ for the pion ladder and nucleon pair diagrams, respectively. The interaction is determined at r_{0} by an energyindependent boundary condition for those partial waves sensitive to the shortrange interaction. A very good fit to the pp data and a good fit to the np data below 350MeV nucleon laboratory energy, are obtained, comparable to the best phenomenological fits. The optimum or fixed values of exchange particle masses and coupling constants corresponds to their known physical values, and the λ and ξ parameters optimize in their theoretical range. The value attained by r_{0} corresponds to that predicted by the theory of the boundary condition model. There remain 19 boundary condition parameters, freely fitted, to which the data are sensitive. These may in principle be related to pionnucleon amplitudes. Rescattering and φ meson exchange contributions to the potential remain to be investigated, as does the effect of coupling to inelastic channels.
 Publication:

Reviews of Modern Physics
 Pub Date:
 July 1967
 DOI:
 10.1103/RevModPhys.39.611
 Bibcode:
 1967RvMP...39..611L