MEASUREMENT OF POLARIZATION TRANSFER IN P-P SCATTERING FOR A TEST FORNUCLEON-NUCLEON POTENTIALS

We have measured polarization transfer observables K(y)y' (theta), K(x )x' (theta) and K(z)x' (theta) for proton-proton scattering at 25.68 M eV with an accuracy of 0.007-0.012. Phase shift analyses of these data together with differential cross section and analyzing power data at the same energy yield an essentially model independent determination o f the S-1(0), P-3(J) and epsilon2 parameters at this energy. These par ameters provide a test of nucleon-nucleon potential models and favour Paris and Nijmegen potentials.