Reactions involving the flip of the deuteron spin and isospin and supermultiplet potential model for the interaction of extremely light clustersстатья
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Аннотация:On the basis of the Migdal-Watson approximation, various data on the double- and triple-differential cross sections for the processes d + p --> np + p and d + t(h) --> np + t(h) or d + t --> nn + h are recast into a unified form of the angular dependences of the differential cross section for the production of singlet nucleon-nucleon pairs. The results are compared with those produced by the supermultiplet potential model for the interaction of extremely light nuclei. For d + t(h) scattering, where the power of the potential V-[41](r) is 50% higher than the power of the potential V-[32](r) ([f] = [41] and [f] = [32] are orbital Young diagrams), the theory in question is able to provide a quantitative description of both the experimental data being discussed and experimental data on elastic scattering. For d + p scattering, where the difference of the powers of the potentials for [f] = [3] and [f] = [21] is not more than 20%, the agreement with the data on the deuteron-spin-flip reaction leading to the singlet final state is only qualitative. It would be of interest to investigate, by means of triple coincidences, the process d + d --> d, + d, where the difference of the corresponding powers for [f] = [4] and [f] = [22] amounts to about 300%. (C) 2002 MAIK "Nauka/Interperiodica".