Determination of the Nucleon-Nucleon Elastic Scattering Matrix. III. Phase-Shift Analyses of Experiments Near 25 and 50 MeV

Phase-shift analyses have been carried out for ($p, p$) and ($n, p$) experiments near 25 and 50 MeV. Analyses of both ($p, p$) data and of combined ($p, p$) plus ($n, p$) data were made at these energies. The solutions thus obtained extrapolate to the Stapp type 1 solution found at higher energies. Error matrices were calculated for all solutions. The $T=1$ phase shifts from the ($p, p$) and combined ($p, p$) plus ($n, p$) analyses were in good agreement. It was not possible to obtain determinations of the pion-nucleon coupling constant g².