The Spatial Sub-separation of Strangeness from Antistrangeness in Heavy-Ion Collisions at Energies of FAIR and NICA

Abstract

The heavy-ion collisions at energies of FAIR and NICA are studied within the microscopic transport model. The whole interaction area is subdivided into the small cells. We perform the analysis of the space-time evolution of all particles in all cells, in the planes, and the analysis of the finally emitted strange and non-strange particles in the plane. Following the time evolution of all distributions, we clearly see the spacial separation of strangeness from anti-strangeness, as well as earlier freeze-out times of kaons and pions compared to those of protons and Lambdas. The latter appear to be frozen out at lower temperature and larger strangeness chemical potential.