Abstract

SPD-NICA project is under preparation at second interaction point of the NICA collider. The purpose of this experiment is the study of the nucleon spin structure with high intensity polarized light nuclear beams. It is argued that the design of the collider can allow us to reach with proton beams a very high collision energy up to √s ∼ 26 GeV with average luminosity up to 1030-1031 cm2/s. At the same time, the respective number for deuteron collisions is also quite considerable: at a collision energy per nucleon up to √s ∼ 12 GeV, the average luminosity reaches up to 1029 - 1030 cm2/s. It is of great importance that both proton and deuteron beams can be effectively polarized, with a polarization degree not less than 50%. All these advantages give us unique possibilities to investigate at NICA polarization phenomena which are of crucial importance for the solution of the nucleon spin problem (''spin puzzle'') - one of the main tasks of the modern hadron physics.

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