Elliptic flow at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV with the ALICE experiment

Abstract

An observable that can be used to better constrain the mechanism responsible for the parton energy loss is the elliptic azimuthal event anisotropy, $v_2$. We report on measurements of $v_2$ for inclusive and identified charged particles in Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV recorded by the ALICE experiment at the LHC. $v_2$ is presented for a wide range of particle transverse momentum up to $p_T=20$ GeV/c. The particle $v_2$ is finite, positive and approximately constant for $p_T>8$ GeV/c. The proton $v_2$ is higher than that of the pion up to about $p_T=8$ GeV/c. The results are compared to the measurements at lower energy reported by RHIC experiments.

4 pages, QM 2011 proceedings

References in corpus (1)

• Bulk Properties of Pb-Pb collisions at sqrt(sNN) = 2.76 TeV measured by ALICE

Cited by in corpus (8)

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• The high energy frontier of ultrarelativistic nucleus-nucleus collisions
• Quenching of high-pT hadrons: a non-energy-loss scenario
• Elliptic Flow and Shear Viscosity of the Shattered Color Glass Condensate
• Nuclear modification of charged hadron production at LHC