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Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV

The ALICE collaboration
Phys.Lett. B719 (2013) 18-28, 2013

Abstract (data abstract)
CERN-LHC. The elliptic, v2, triangular, v3, and quadrangular, v4, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions and (anti-)protons in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV recorded in 2010 with the ALICE detector at the Large Hadron Collider. Results obtained with the event plane and four-particle cumulant methods are reported for the pseudo-rapidity range |eta| < 0.8 at different collision centralities and as a function of transverse momentum, pT, out to pT = 20 GeV. The observed non-zero elliptic and triangular flow depends only weakly on transverse momentum for pT > 8 GeV. The small pT dependence of the difference between elliptic flow results obtained from the event plane and four-particle cumulant methods suggests a common origin of flow fluctuations up to pT = 8 GeV. The magnitude of the (anti-)proton elliptic and triangular flow is larger than that of pions out to at least pT = 8 GeV indicating that the particle type dependence persists out to high pT. Update Note (07/09/2015): Additional tables from ALICE-PUBLIC-2015-003 (http://cds.cern.ch/record/2045885) were added.

  • Table 1

    Data from Figure 1

    10.17182/hepdata.62177.v1/t1

    Elliptic flow (v2) estimated with Event Plane method (with eta gap of 2.0) measured for unidentified charged particles as a...

  • Table 2

    Data from Figure 1

    10.17182/hepdata.62177.v1/t2

    Elliptic flow (v2) estimated with four-particle cumulants measured for unidentified charged particles as a function of transverse momentum for various...

  • Table 3

    Data from Figure 1

    10.17182/hepdata.62177.v1/t3

    Triangular flow (v3) estimated with Event Plane method (with eta gap of 2.0) measured for unidentified charged particles as a...

  • Table 4

    Data from Figure 1

    10.17182/hepdata.62177.v1/t4

    Quadrangular flow (v4) measured with respect to symmetry plane Psi4, estimated with Event Plane method (with eta gap of 2.0),...

  • Table 5

    Data from Figure 1

    10.17182/hepdata.62177.v1/t5

    Quadrangular flow (v4) measured with respect to symmetry plane Psi2, estimated with Event Plane method (with eta gap of 2.0),...

  • Table 6

    Data from Figure 2

    10.17182/hepdata.62177.v1/t6

    Comparison of the ALICE results on v2, v3 and v4 obtained with the event plane method, measured for unidentified charged...

  • Table 7

    Data from Figure 3

    10.17182/hepdata.62177.v1/t7

    Relative event-by-event elliptic flow fluctuations for unidentified charged particles versus transverse momentum for different centrality classes.

  • Table 8

    Data from Figure 4

    10.17182/hepdata.62177.v1/t8

    Unidentified charged particle v2, v3, and v4 integrated over the transverse momentum range 10 < pT < 20 GeV as...

  • Table 9

    Data from Figure 5 (top)

    10.17182/hepdata.62177.v1/t9

    Elliptic flow (v2) estimated with Event Plane method (with eta gap of 2.0) of charged pion and proton as a...

  • Table 10

    Data from Figure 5 (bottom)

    10.17182/hepdata.62177.v1/t10

    Triangular flow (v3) estimated with Event Plane method (with eta gap of 2.0) of charged pion and proton as a...

  • Table 11

    Data from Figure 1, top left (Public note, CERN-PH-EP-2015-003

    10.17182/hepdata.62177.v1/t11

    $v_{2}$ vs $p_{T}$, centrality 0-5%.

  • Table 12

    Data from Figure 1, top center (Public note, CERN-PH-EP-2015-003

    10.17182/hepdata.62177.v1/t12

    $v_{2}$ vs $p_{T}$, centrality 5-10%.

  • Table 13

    Data from Figure 1, top right (Public note, CERN-PH-EP-2015-003

    10.17182/hepdata.62177.v1/t13

    $v_{2}$ vs $p_{T}$, centrality 10-20%.

  • Table 14

    Data from Figure 1, bottom left (Public note, CERN-PH-EP-2015-003

    10.17182/hepdata.62177.v1/t14

    $v_{2}$ vs $p_{T}$, centrality 20-30%.

  • Table 15

    Data from Figure 1, bottom center (Public note, CERN-PH-EP-2015-003

    10.17182/hepdata.62177.v1/t15

    $v_{2}$ vs $p_{T}$, centrality 30-40%.

  • Table 16

    Data from Figure 1, bottom right (Public note, CERN-PH-EP-2015-003

    10.17182/hepdata.62177.v1/t16

    $v_{2}$ vs $p_{T}$, centrality 40-50%.

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