Thermal, chemical and spectral equilibration in heavy-ion collisions

Abstract

We have considered the equilibration in a relativistic heavy ion collision using our transport model. We applied periodic boundary conditions to close the system in a box. We found that the thermal equilibration takes place in the first 20-40 fm/c which time is comparable to the duration of a heavy ion collision. The chemical equilibration is a much slower process and the system does not equilibrate in a heavy ion collision. We have also shown that the mass spectra of broad resonances immediately follows their in-medium spectral functions.

23 pages, 19 figures

References in corpus (4)

• Transport-theoretical Description of Nuclear Reactions
• Dissipative relativistic fluid dynamics: a new way to derive the equations of motion from kinetic theory
• Jozso's Legacy: Chemical and Kinetic Freeze-out in Heavy-Ion Collisions
• Propagation of vector-meson spectral-functions in a BUU type transport model: Application to di-electron production

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• Mass shift of charmonium states in $\bar{p}A$ collision
• Studying the in-medium $\varphi$ meson spectrum through kaons in proton-nucleus reactions