Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-11-21
Phys.Lett.B659:520-524,2008
Physics
Nuclear Physics
Nuclear Theory
6 pages, 4 figures, accepted for publication in Phys. Lett. B
Scientific paper
10.1016/j.physletb.2007.11.042
We present predictions for the pseudorapidity dependence of the azimuthal anisotropy parameters v_1 and v_2 of baryons and inclusive charged hadrons in Pb+Pb collisions at a LHC energy of sqrt(s) = 5.5 TeV applying a microscopic transport model, namely the quark gluon string model (QGSM) which has been recently extended for parton rearrangement and fusion processes. Pb+Pb collisions with impact parameters b = 2.3 fm and b = 8 fm have been simulated in order to investigate additionally the difference between central and semiperipheral configurations. In contrast to v_1(eta) at RHIC, the directed flow of charged hadrons shows a small normal flow alignment. The elliptic flow v_2(eta) turns out to be rather similar in shape for RHIC and LHC conditions, the magnitude however increases about 10-20 % at the LHC, leading to the conclusion that the hydrodynamical limit will be reached.
Bleibel J.
Burau Gerhard
Fuchs Ch.
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