133 research outputs found
Thermal, chemical and spectral equilibration in heavy-ion collisions
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.Comment: 23 pages, 19 figure
Educating the Christian Prince for Learning and Peace: The Cases of Archdukes Rudolf and Ernst in Spain (1564–1571)
Modeling chiral criticality and its consequences for heavy-ion collisions
We explore the critical fluctuations near the chiral critical endpoint (CEP)
in a chiral effective model and discuss possible signals of the CEP, recently
explored experimentally in nuclear collision. Particular attention is paid to
the dependence of such signals on the location of the phase boundary and the
CEP relative to the chemical freeze-out conditions in nuclear collisions. We
argue that in effective models, standard freeze-out fits to heavy-ion data
should not be used directly. Instead, the relevant quantities should be
examined on lines in the phase diagram that are defined self-consistently,
within the framework of the model. We discuss possible choices for such an
approach.Comment: 4 pages, 4 figures, contribution to the Quark Matter 2015 proceeding
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