Speakers
Francesco Becattini
(Unversity of Florence)Mr
Tim Schuster
(Yale University (US))
Description
We analyze hadrochemical freeze-out in central Pb+Pb collisions at CERN
SPS energies, employing the hybrid version of the Ultrarelativistic
Quantum Molecular Dynamics model, which describes the transition from a
hydrodynamic stage to hadrons by the Cooper-Frye mechanism, and matches
to a final hadron-resonance cascade. We fit the results both before and
after the cascade stage using the Statistical Model, to assess the
effect of the cascade phase. We observe an upward shift of the
statistical model freeze-out curve over the entire range of SPS energies
if we omit the significantly absorbed antibaryon species from the fit.
The freeze-out curve shifts closer to the lattice parton-hadron phase
transition line. The corresponding effects are studied at RHIC and LHC
energies where the final state annihilation affects both the baryon, and
antibaryon yields.
reference: arXiv:1201.6349 to appear in Phys. Rev. C
Primary authors
Francesco Becattini
(Unversity of Florence)
Marcus Bleicher
(Uni Frankfurt)
Michael Kosta Mitrovski
(Institut fuer Kernphysik-Johann-Wolfgang-Goethe Univ.)
Reinhard Stock
(Institut fuer Kernphysik - Johann-Wolfgang-Goethe Univ.)
Thorsten Kollegger
(Johann-Wolfgang-Goethe Univ. (DE))
Mr
Tim Schuster
(Yale University (US))
