Spin-dependent observables and the D2 parameter in breakup of deuteron and 3He

We analyze the momentum distributions of constituents in 3He, as well as the spin-dependent observables for (3He, d), (3He, p), and (d, p) breakup reactions. Special attention is paid to the region of small relative momenta of the helium-3 and deuteron constituents, where a single parameter, D2, has a determining role for the spin-dependent observables. We extract also this parameter for the deuteron, basing on the existing data for the tensor analyzing power of this (d, p) breakup