Abstract
We report the first measurement of charged particle elliptic flow in Pb-Pb collisions at with the ALICE detector at the CERN Large Hadron Collider. The measurement is performed in the central pseudorapidity region () and transverse momentum range . The elliptic flow signal , measured using the 4-particle correlation method, averaged over transverse momentum and pseudorapidity is in the 40%–50% centrality class. The differential elliptic flow reaches a maximum of 0.2 near . Compared to RHIC Au-Au collisions at , the elliptic flow increases by about 30%. Some hydrodynamic model predictions which include viscous corrections are in agreement with the observed increase.
- Received 18 November 2010
DOI:https://doi.org/10.1103/PhysRevLett.105.252302
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© 2010 CERN, for the ALICE Collaboration
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