PHASE VARIATION OF THE NN AMPLITUDE AT 1.75 GEV/C

We calculate the phase variation parameter gamma in terms of an effective NN potential which is consistent with the small angle NN scattering data at 1.75 GeV/c. It is found that gamma is positive and is of much smaller magnitude than required to reproduce the alpha elastic scattering data on light nuclei at the corresponding energy. However, our estimate is in accord with the value of gamma as obtained from the pp phase shifts.