Similarity and specifics of polarization in hadronic and heavy-ion collisions

Abstract

The basic ingredients of baryon polarization emerging in the collisions of hadrons and heavy ions are compared. The apperance of the pseudovector as the normal to reaction plane, axial anomaly, as a spin-orbital interaction, and dissipation, as imaginary phase are discussed. The interplay beyween chenical potential and Regge behaviour and the hadronic analog of viscosity are outlined. The experimental studies of transition of hadrons to heavy ions, in particular at NICA (JINR) is discussed.