Collisions of relativistic heavy ions result in the formation of a large number of light nuclei, especially at high baryon densities near the collision energy of several A GeV. These light nuclei carry information about how nucleons interact and affect the properties of the collision system. In this work, we present first results on the directed flow v₁ of protons and deuterons in 10–30% central Xe + Cs(I) collisions at a kinetic energy E_kin = 3.8A GeV, as measured by the BM@N experiment at NICA during the first physics run in 2023. These results are compared with the existing world data and tested for approximate scaling with atomic mass number.
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Zhavoronkova et al. (2026) studied this question.
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