Measurement of the polarization correlation coefficient C/sub n/n of elastic pp scattering at energies of 550 and 630 MeV

The polarization correlation coefficient C/sub n/n was determined for the elastic pp scattering at energies of 550 and 630 MeV for four scattering angles. The coefficient C/sub n/n was determined by scattering a beam of protons of 0.34--0.36 polarization by a ''frozen'' polarized proton target with maximum polarization of 0.98 +- 0.03. The results of the measurements indicated that, in the investigated energy range, C/sub n/n depended weakly on the angle and energy.