Recent results on the spin effects in deuteron-proton elastic scattering, beam and focal polarimetry using polarized deuteron and proton beams from new polarized ion source at Nuclotron-JINR facility are discussed. The vector $A_y$ and tensor $A_{yy}$ and $A_{xx}$ analyzing powers in deuteron-proton elastic scattering at large transverse momenta obtained at internal target at Nuclotron in the energy range 400-1800 MeV are obtained. These data on the deuteron analyzing powers in the wide energy range demonstrate the sensitivity to the short-range spin structure of the isoscalar nucleon-nucleon correlations. The perspectives of further progress in physics program as well as in the development of the polarimetry and proton spin manipulation techniques are disscussed.

Deuteron-proton elastic scattering is considered at the energies from 880 MeV to 2 GeV at the scattering angles θ^*≥ 140^∘. The multiple-scattering method is used to calculate the reaction amplitude. Four reaction mechanisms are taken into account: one-nucleon-exchange, single-scattering, and double-scattering with a nucleon and a delta-isobar in the intermediate state. The method allows calculating both unpolarized differential cross section and any polarization observables. All the results obtained are compared to the experimental data.

Effective cross section and analyzing powers of the elastic dp process are obtained and partially processed in the energy range 200–2000 MeV. The results are compared with a relativistic model of multiple scattering. The deuteron breakup reaction in the region of hundreds of MeV have rich phase space, by scanning, angular and energetic we can learn more about short-range correlations of nucleons or e.g. on non-nucleonic degrees of freedom depending on the selected part of the phase space.

In this report, we consider deuteron–proton elastic scattering in the relativistic multiple scattering expansion framework. The following reaction mechanisms are included into consideration: one-nucleon exchange, single scattering, and double scattering. Also, the term corresponding to the delta excitation in the intermediate state is taken into account. This model is applied for a description of the experimental data both on the differential cross section and polarization observables in a whole angular range. The obtained theoretical predictions are compared with the existing experimental data. Effects of the different reaction mechanisms are analyzed.

The data on the vector Ay and tensor Ayy and Axx analyzing powers in elastic deuteron–proton scattering at large transverse momenta are presented. These were obtained in the energy range of 400 to 1800 MeV using the internal target at the JINR Nuclotron and the polarized deuteron beam from a new polarized ion source. The new data on the deuteron analyzing powers in a wide energy range demonstrate sensitivity to the spin structure of isoscalar nucleon-nucleon correlations at small distances.

Dp elastic and dp breakup are complementary processes which can give us information about deuteron structure, non-nucleonic degrees of freedom and short range correlations. Both processes are investigated at internal target station of Nuclotron at intermediate energy range; dp elastic process in angular range from 60 $$^{\circ }$$ to 135 $$^{\circ }$$ in c.m. in the energy range from 400 to 2000 MeV; dp breakup reaction in angular range from 19 $$^{\circ }$$ to 56 $$^{\circ }$$ in laboratory system from 300–500 MeV. Results which come from analyzing powers of dp elastic scattering show strong sensitivity to the short range spin structure of the isoscalar nucleon-nucleon correlations. Results of dp breakup process in form of S- curve distribution are discussed.

Deuteron-proton elastic scattering is considered in the relativistic multiple scattering expansion framework. The four reaction mechanisms are included into consideration: one-nucleon exchange, single scattering, double scattering, and the term corresponding to the delta excitation in the intermediate state. The theoretical results are compared with the experimental data.

Polarized and unpolarized data for the dp breakup reaction at deuteron energies of 270, 400 MeV and 300–500 MeV using E - E technique are obtained. Dp elastic scattering has been investigated using polarized deuteron beam under various kinematic configurations in the angular range ( 65^∘ – 135^∘ ) in c.m. at deuteron energies of 400, 700, 800, 1000, 1100, 1300, 1500 and 1800 MeV. Preliminary results of analyzing powers obtained in dp elastic scattering at 800 MeV of deuteron energy are compared with the calculations based on relativistic multiple scattering model.

Deuteron spin structure program is aimed on extraction of two and three nucleon forces information, including their spin dependent parts, from dp elastic and dp breakup processes investigated at intermediate energies. The dp elastic data were obtained at Internal Target Station of Nuclotron (JINR) in the energy range 400-1800 MeV using polarized deuteron beam. Strong sensitivity to the short range spin structure of the isoscalar nucleon-nucleon correlations is observed in deuteron analyzing powers. Preliminary results of the the cross section for the dp breakup reaction have been obtained at 400 MeV of deuteron energy.

The results on the the vector $A_y$, $A_{yy}$ and $A_{xx}$ analyzing powers in deuteron-proton elastic scattering at large scattering angles are presented. These data were obtained at internal target at JINR Nuclotron in the energy range 400-1800 MeV using polarized deuteron beam from new polarized ion source. New data on the deuteron analyzing powers in the wide energy range demonstrate the sensitivity to the short-range spin structure of the isoscalar nucleon-nucleon correlations.

The results from studies of the differential cross section of elastic deuteron–proton scattering at 500–1000 MeV/nucleon on the Nuclotron Internal Targets Station are presented and compared to the available experimental data for similar energies, and to the results of theoretical calculations in the theory of relativistic multiple scattering.

Energy dependence of the vector $A_y$ and tensor $A_{yy}$ and $A_{xx}$ analyzing powers in deuteron-proton (dp) elastic scattering is investigated in the energy range from 400 - 2000 MeV at large scattering angles. The detection of the dp elastic scattering events has been done by the coincident measurement of deuteron and proton in the the angular range of 60$^{\circ}$-135$^{\circ}$ in the cm. Preliminary results of differential cross sections and analyzing powers for dp elastic scattering are compared with theoretical predictions based on relativistic multi-scattering model which includes besides single and double scattering terms also delta isobar excitation. There are interesting parts of deuteron proton breakup reaction phase space in which three nucleon forces, relativistic or coulomb effects can be studied separately. Preliminary results of the cross section of the dp breakup reaction have been obtained in the energy range from 300 - 500 MeV of incoming deuteron for particular detector configurations in which the sensitivity to the nucleon-nucleon, three nucleon forces as well as relativistic effects are assumed. All measurements were performed at Nuclotron (JINR, Dubna).

We study deuteron- proton elastic scattering in the deuteron energy range between 500 MeV and 2 GeV at the cms scattering angle \theta^*\ge 140^\circθ*≥140∘. The reaction is considered in the relativistic multiple scattering expansion framework. The four reaction mechanisms are included into consideration: one-nucleon exchange, single scattering, double scattering, and the term corresponding to the delta excitation in the intermediate state.The model is applied to describe the angular dependence of the differential cross section at the deuteron energies of between 880 and 1300 MeV. Also the energy dependence of the differential cross section and polarisation observables such as tensor analyzing power T_{20}T20 and polarization transfer from the deuteron to proton \varkappa𝜘 are considered at the scattering angle equal to 180^\circ∘. Contributions of the different reaction mechanisms into the reaction amplitude are demonstrated in comparison with the existing experimental data.

The results on the differential cross section of dp elastic scattering obtained at the Internal Target Station at the Nuclotron JINR at the energies of 500, 750 and 900MeV/nucleon are presented. The measurements have been performed using an unpolarized deuteron beam and polyethylene foil target. The data have been obtained in the angular range of $ 70^{\circ}$ - $ 120^{\circ}$ in the cms. The angular dependences of the data from the present experiment are compared with the world experimental data obtained at nearby energies as well as with the theoretical calculations performed within the relativistic multiple scattering theory. The behavior of the differential cross section at the fixed scattering angles covering the total cms energy region of $ \sqrt{s} = 3.1 -3.42$ GeV is in qualitative agreement with the s power-law dependence.

Dp breakup reaction is investigated in the energy range 300-500 MeV at the Internal Target of the Nuclotron using unpolarized and polarized beams by DSS collaboration. The goal of the study is to obtain information about nucleon-nucleon correlations at short distances, non-nucleonic degrees of freedom and relativistic effects. A part of the breakup data at 300 MeV and 400 MeV has been obtained in kinematics where relativistic effects would have a significant contribution.