Predictions of modern NN interactions for cross sections and spin observables in three-nucleon scattering are displayed. The agreement with experimental data is in general very good, but there are challenging exceptions, which might point to deficiencies in the dynamical input. First results including three-nucleon-deutron scattering below and above the three-nucleon breakup threshold are shown, which illustrate the complexity of composite particle scattering. A systematic study covering all possible breakup configurations is discussed, where those configurations are identified, which are totally insensitive to the choice of the specific NN interaction and those, which are very sensitive. Similarly those scattering observables which do not scale are shown. Finally an application of the interacting three nucleon continuum to exclusive and inclusive electron scattering on {sup 3}He is described and first results are compared to data.

The three-nucleon continuum: Achievements, challenges, and applications

The data on the tensor Ayy, Axx, Axz and vector Ay analyzing powers in the dd → ^3Hen obtained at T
 d = 270 MeV in the angular range 0° - 110° in the c.m. are presented. The observed negative sign of the tensor analyzing powers Ayy, Axx and Axz at small angles clearly demonstrate the sensitivity to the ratio of the D - and S -wave component of the 3He wave function. However, the one-nucleon exchange calculations by using the standard 3He wave functions have failed to reproduce the strong variation of the tensor analyzing powers as a function of the angle in the c.m.

Analyzing powers Ayy , Axx , Axz and Ay in the dd → 3Hen reaction at 270 MeV

Recent results on the deuteron analyzing powers obtained in collisions of polarized deuterons with protons and light nuclei at intermediate and high energies are reported. The obtained results are sensitive to the spin structure of the short range correlations. The prospects of the spin program for hadronic reactions at Nuclotron-NICA facility is discussed. The polarimetry developments are also presented.

/pdf/recent-results-with-polarized-deuterons-and-polarimetry-at-3tfk0p39h2.pdf

Recent results with polarized deuterons and polarimetry at Nuclotron-NICA

The dd → 3
 Hen reaction is considered at the energies between 200 and 520 MeV. The Alt–Grassberger–Sandhas equations are iterated up to the lowest order terms over the nucleon–nucleon t-matrix. The parameterized 3
 He wave function including five components is used. The angular dependence of the differential cross section and energy dependence of tensor analyzing power T
 20 at the zero scattering angle are presented in comparison with the experimental data.

dd → 3 Hen Reaction at Intermediate Energies

/pdf/polarization-effects-in-hadronic-reactions-in-a-gev-region-4p30lluv0x.pdf

Polarization effects in hadronic reactions in a GeV region

Measurement of the tensor analyzing power T20 in the dd→He3n and dd→H3p at intermediate energies and at zero degree

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Measurement of the tensor analyzing power T20 in the dd→He3n and dd→H3p at intermediate energies and at zero degree