Charged particle directed flow in Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV measured with ALICE at the LHC

Understand

Charged particle directed flow at midrapidity, |eta|<0.8, and forward rapidity, 1.7 < |eta|<5.1, is measured in Pb-Pb collisions at sqrt{s_NN} = 2.76 TeV with ALICE at the LHC.

• Directed flow is reported as a function of collision centrality, charged particle transverse momentum, and pseudo-rapidity.
• Results are compared to measurements at RHIC and recent model calculations for LHC energies.