Charged particle directed flow in Pb-Pb collisions At √sNN = 2.76 TeV measured with ALICE at the LHC
Department of Physics, University of Oslo, Norway, Post Box 1048 Blindern
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Published online: 10 April 2014
Directed flow, υ1, is measured over a wide range of pseudo-rapidity, |η| < 5.1, in Pb-Pb collisions at 2.76 TeV with ALICE at the LHC. υ1 is reported as a function of the pseudo-rapidity, the transverse momentum and collision centrality. Using the neutral spectator deflection at beam rapidity we investigate both the rapidity asymmetric υ1 which is sensitive to the collision reaction plane, and the rapidity symmetric υ1 which is sensitive to the energy fluctuations in the initial geometry. The results are compared with those at RHIC, and the model calculations.
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