Publications [#245386] of Steffen A. Bass

Papers Published
  1. Bravina, LV; Zabrodin, EE; Bass, SA; Faessler, A; Fuchs, C; Gorenstein, MI; Greiner, W; Soff, S; Stöcker, H; Weber, H, Chemical freeze-out parameters at RHIC from microscopic model calculations, Nuclear Physics A, vol. 698 no. 1-4 (February, 2002), pp. 383-386 [0104023], [doi] .

    The relaxation of hot nuclear matter to an equilibrated state in the central zone of heavy-ion collisions at energies from AGS to RHIC is studied within the microscopic UrQMD model. It is found that the system reaches the (quasi)equilibrium stage for the period of 10-15 fm/$c$. Within this time the matter in the cell expands nearly isentropically with the entropy to baryon ratio $S/A = 150 - 170$. Thermodynamic characteristics of the system at AGS and at SPS energies at the endpoints of this stage are very close to the parameters of chemical and thermal freeze-out extracted from the thermal fit to experimental data. Predictions are made for the full RHIC energy $\sqrt{s} = 200$ AGeV. The formation of a resonance-rich state at RHIC energies is discussed.