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 {π}NN coupling constants g₀² for π⁰ exchange and gc² for charged {π} exchange can be derived. Results are g₀²=13.94±{}0.17±{}0.07 and gc²=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 d{σ}/d{Ω}.