Elliptic Flow of Charged Particles in Pb-Pb Collisions at {radical}(s{sub NN})=2.76 TeV
- Department of Physics and Technology, University of Bergen, Bergen (Norway)
We report the first measurement of charged particle elliptic flow in Pb-Pb collisions at {radical}(s{sub NN})=2.76 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurement is performed in the central pseudorapidity region (|{eta}|<0.8) and transverse momentum range 0.2<p{sub t}<5.0 GeV/c. The elliptic flow signal v{sub 2}, measured using the 4-particle correlation method, averaged over transverse momentum and pseudorapidity is 0.087{+-}0.002(stat){+-}0.003(syst) in the 40%-50% centrality class. The differential elliptic flow v{sub 2}(p{sub t}) reaches a maximum of 0.2 near p{sub t}=3 GeV/c. Compared to RHIC Au-Au collisions at {radical}(s{sub NN})=200 GeV, the elliptic flow increases by about 30%. Some hydrodynamic model predictions which include viscous corrections are in agreement with the observed increase.
- OSTI ID:
- 21554480
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 105; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ACCELERATORS
ALICE
BROOKHAVEN RHIC
CERN
CERN LHC
CHARGED PARTICLES
COLLISIONS
CORRECTIONS
CORRELATIONS
CYCLIC ACCELERATORS
ELEMENTS
ENERGY RANGE
GEV RANGE
GEV RANGE 01-10
GOLD
HEAVY ION ACCELERATORS
HYDRODYNAMIC MODEL
INTERNATIONAL ORGANIZATIONS
LINEAR MOMENTUM
MAGNETIC MIRRORS
MATHEMATICAL MODELS
METALS
OPEN PLASMA DEVICES
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE RAPIDITY
STATISTICAL MODELS
STORAGE RINGS
SYNCHROTRONS
TEV RANGE
TEV RANGE 01-10
THERMODYNAMIC MODEL
THERMONUCLEAR DEVICES
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TRANSVERSE MOMENTUM