pp elastic scattering polarization transfer $K_{onno}$ and depolarization $D_{onon}$ between 1.94 and 2.80 GeV

A polarized proton beam extracted from SATURNE II and the Saclay polarized proton target were used to measure the rescattering observables \(K_{onno}\) and \(D_{onon}\) at 26 energies from 1.94 to 2.80 GeV and at 0.80 GeV. The beam and target polarizations were oriented vertically and left-right as well as up-down asymmetries in the second scattering on carbon were measured. The present data, obtained in small energy steps, are practically constant as a function of energy at 90°CM, where \(K_{onno} = D_{onon}\). These data will bring about important modification to phase shifts and stabilize the solutions.