Interactions of few-nucleon systems at relativistic energies

Some results obtained using the deuteron (10 GeV) and alpha (20 GeV) beams at the Dubna synchrophasotron are presented. The results are divided into three sections according to the experimental techniques used. The first section concerns interactions of 3.3 GeV/c deuterons and protons using a hydrogen bubble chamber. In the second section some preliminary results are presented obtained using the recoil measurement technique, and in the third - preliminary results on a search for α-particle scattering at 17.9 GeV/c on p, He, C, Al, Cu, Pb, using a magnetic spectrometer with a multiwire proportional chamber and dE/dx detectors. Preliminary results are rather consistent with Glauber theory predictions. There are however some deviations of an oscillatory type of experimental differential cross sections from the Glauber ones for α-C, α-Al, α-Cu scatterings