πNNcoupling constants fromNNelastic data between 210 and 800 MeV

High partial waves for pp and np elastic scattering are examined critically from 210 to 800 MeV. Non-one-pion-exchange contributions are compared with predictions from theory. There are some discrepancies, but sufficient agreement that values of the πNN coupling constants ${\mathit{g}}_0^2$ for ${\mathrm{\pi }}^0$ exchange and ${\mathit{g}}_{\mathit{c}}^2$ for charged π exchange can be derived. Results are ${\mathit{g}}_0^2$=13.94±0.17±0.07 and ${\mathit{g}}_{\mathit{c}}^2$=13.69±0.15±0.24, where the first error is statistical and the second is an estimate of the systematic error arising from uncertainties in the normalization of total cross sections and dσ/dΩ.