elastic scattering at small

Features of high energy pp and pA elastic scattering at small t Abstract A method of determination of the real part of the elastic scattering amplitude is examined for high energy proton-proton and proton-nuclei elastic scattering at small momentum transfer. The method allows to decrease the number of model assumptions, to obtain the real part in the narrow region of momentum transfer and check up some different model approaches of hadron-nuclei scattering. A large number of experimental and theoretical studies of the high energy elastic proton-proton and proton-antiproton scattering at small angles gives a rich information about this processes, which allows to narrow the circle of examined models and to solve a number of difficult problems. Especially this concerns the energy dependence of some of characteristics of these reactions and the contribution of the odderon. Most of these questions are connected with the s and t dependence of the spin-non-flip phase of hadron-hadron scattering. The majority of the models define the real part of the scattering amplitude phenomenologically. Some