Abstract
Deuteron induced reactions at intermediate energies are investigated at Internal Target Station (ITS) of Nuclotron. The dp elastic scattering data have been accumulated in the angular range (70° - 120°) in c.m from 0.3 to 2.0 GeV of deuteron energy. Part of the obtained results of differential cross sections and analyzing powers of dp elastic scattering are compared with theoretical predictions based on relativistic multi-scattering model. The dp breakup data are obtained with the detection of two outgoing protons at the angles of (19° - 54°) in laboratory frame at the deuteron energies from 0.3 to 0.5 GeV in various detector configurations. One of the tools to study spin structure of short range correlations is the measurements of the cross section, tensor analyzing power T 20 and spin correlation parameter Cy,y in the d 3 He → p (0°)4 He reaction at the energies between 1.0 and 1.75 GeV using polarized 3 He target and extracted polarized deuteron beam from new polarized ion source at Nuclotron. For this purposes the feasibility study has been performed. Proposed experiments on extracted deuteron beam of Nuclotron is aimed to investigate: non-nucleonic degrees of freedom and baryonic resonances properties in the d(A,d(0°))X and d(A,π -(0°))X reactions at different energies, non-nucleonic degrees of freedom via the measurements of the tensor Ayy and vector Ay analyzing powers in d(A,π -)X reaction and polarization properties of the baryonic resonances in the d(A,d)X reaction and others. First measurement of vector and tensor polarization of new polarized ion source has been performed in June-July of 2016y.
Highlights
Deuteron induced reactions at intermediate energies are investigated at Internal Target Station (ITS) of Nuclotron
Cross sections and the tensor analyzing powers obtained from Nd scattering at energies below 30 MeV are well described with the corresponding theoretical calculations in which only the NN potentials have been used
Points of kinematic S -curve are calculated with energy step of 5 MeV in case of d p breakup reaction for the detector arms placed at polar angles of Θ1 = 35.0◦, Θ2 = 43.0◦ and Φ12 = 180◦ at deuteron energy of 0.4 GeV
Summary
Spontaneously broken chiral symmetry [4]. These realistic NN potentials and effective field theories describe NN data with very high accuracy. Faddeev equations for all NN potentials can be solved exactly These realistic NN are unable to describe binding energy of three [5] and four nucleon systems [6] and many scattering experiments. Cross sections and the tensor analyzing powers obtained from Nd scattering at energies below 30 MeV are well described with the corresponding theoretical calculations in which only the NN potentials have been used. The cross section data of the pd elastic scattering obtained at 250 MeV cannot be reproduced by the Faddeev calculations [10]. The spin structure of the np SRCs has been investigated at JINR via the measurements of the tensor analyzing power Ayy in deuteron inclusive breakup at different energies in the wide regions of the xF and transverse proton momentum pT [15]. The comparison of polarization observables obtained in various parts of phase space with theory can give information about dynamics beyond pairwise potential, Coulomb and relativistic effects and their relative strength
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