Search for scaling onset in exclusive reactions with the lightest nuclei

. The dimensional scaling of the differential cross sections of binary reactions, , where n is given by constituent quark counting rules, was predicted for asymptotically high energies and transferred momenta at t / s = const (here s and t are the Mandelstam variables and m i denotes a hadron mass), but manifested itself at surprisingly moderate energies of few GeV at large fixed cms angles . This behaviour is observed not only in reactions with free hadrons, but with the deuteron and 3 He too, both for electromagnetic and pure hadronic interactions. One may suppose that the observed scaling points out to effective restoration of near-conformal and, probably, chiral symmetry in these processes. A systematical experimental study of the scaling behaviour of the reactions with the deuteron, 3 H, 3 He, and 4 He nuclei is still absent. We consider a possibility to carry out this study in dd collisions at the JINR Nuclotron.