12-18 August 2012
US/Eastern timezone

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Directed flow measurement in Pb-Pb collisions with ALICE at the LHC

16 Aug 2012, 16:00
2h
Regency 1/3 and Ambassador ()

Regency 1/3 and Ambassador

Poster Global and collective dynamics Poster Session Reception

Speaker

Gyulnara Eyyubova (University of Oslo (NO))

Description

Directed flow, v1, is measured over a wide range of pseudo-rapidity, |eta|<5.1, in Pb-Pb collisions at 2.76 TeV with ALICE at the LHC. The results of v1 are reported as a function of the pseudo-rapidity and the transverse momentum for different collision centrality classes. Using the neutral spectator deflection at beam rapidity we investigate both the rapidity asymmetric v1 which is sensitive to the collision reaction plane, together with the rapidity symmetric v1 which is sensitive to the energy fluctuations in the initial geometry. Results are compared to RHIC measurements. Possible effects of the energy fluctuations in the longitudinal (along the collision axis) direction on the directed flow are discussed.

Primary author

Collaboration ALICE (CERN, Geneva, Switzerland)

Co-author

Gyulnara Eyyubova (University of Oslo (NO))

Presentation Materials