In the collisions of heavy ions at the beam energies of several GeV per projectile nucleon strongly interacting matter is produced under extreme conditions similar the those observed in the compact stellar objects. Studying the properties of this matter can be performed by observing the collective anisotropic flow of produced in the collision particles. In this paper we present the first results on the directed flow measurements of protons from the recent physical run at the BM@N experiment with collisions of Xe beam at the kinetic energy of E kin =3.8 GeV per projectile nuclei on CsI target. We compare the results for proton v1 with predictions from theoretical model and existing world data.
Mamaev et al. (Fri,) studied this question.