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Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV

The ALICE collaboration
Phys.Rev. C93 (2016) 034913, 2016

Abstract (data abstract)
CERN-LHC. Transverse momentum ($p_{\rm{T}}$) spectra of pions, kaons, and protons up to $p_{\rm{T}} = 20$ GeV/$c$ have been measured in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV using the ALICE detector for six different centrality classes covering 0-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at $p_{\rm{T}} \approx 3$ GeV/$c$ in central Pb-Pb collisions that decreases towards more peripheral collisions. For $p_{\rm{T}} > 10$ GeV/$c$, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10-20%.

  • Table 1

    Data from Figure 22 (left)

    10.17182/hepdata.71310.v1/t1

    Invariant yields of identified pions in Pb-Pb collisions.

  • Table 2

    Data from Figure 22 (middle)

    10.17182/hepdata.71310.v1/t2

    Invariant yields of identified kaons in Pb-Pb collisions.

  • Table 3

    Data from Figure 22 (right)

    10.17182/hepdata.71310.v1/t3

    Invariant yields of identified protons in Pb-Pb collisions.

  • Table 4

    Data from Narrower centrality bins not shown in Figure 22

    10.17182/hepdata.71310.v1/t4

    Invariant yields of identified pions in Pb-Pb collisions.

  • Table 5

    Data from Narrower centrality bins not shown in Figure 22

    10.17182/hepdata.71310.v1/t5

    Invariant yields of identified kaons in Pb-Pb collisions.

  • Table 6

    Data from Narrower centrality bins not shown in Figure 22

    10.17182/hepdata.71310.v1/t6

    Invariant yields of identified protons in Pb-Pb collisions.

  • Table 7

    Data from Figure 23 (upper left)

    10.17182/hepdata.71310.v1/t7

    The nuclear modification factor RAA as a function of pT for different particle species in 0-5% Pb-Pb collisions.

  • Table 8

    Data from Figure 23 (upper middle)

    10.17182/hepdata.71310.v1/t8

    The nuclear modification factor RAA as a function of pT for different particle species in 5-10% Pb-Pb collisions.

  • Table 9

    Data from Figure 23 (upper right)

    10.17182/hepdata.71310.v1/t9

    The nuclear modification factor RAA as a function of pT for different particle species in 10-20% Pb-Pb collisions.

  • Table 10

    Data from Figure 23 (bottom left)

    10.17182/hepdata.71310.v1/t10

    The nuclear modification factor RAA as a function of pT for different particle species in 20-40% Pb-Pb collisions.

  • Table 11

    Data from Figure 23 (bottom middle)

    10.17182/hepdata.71310.v1/t11

    The nuclear modification factor RAA as a function of pT for different particle species in 40-60% Pb-Pb collisions.

  • Table 12

    Data from Figure 23 (bottom right)

    10.17182/hepdata.71310.v1/t12

    The nuclear modification factor RAA as a function of pT for different particle species in 60-80% Pb-Pb collisions.

  • Table 13

    Data from Figure 25

    10.17182/hepdata.71310.v1/t13

    Kaon-to-pion ratios as a function of pT measured in Pb-Pb collisions.

  • Table 14

    Data from Figure 26

    10.17182/hepdata.71310.v1/t14

    Proton-to-pion ratios as a function of pT measured in Pb-Pb collisions.

  • Table 15

    Data from Figure 27 (left)

    10.17182/hepdata.71310.v1/t15

    Kaon-to-pion ratio integrated for pT > 10 GeV/c measured in Pb-Pb collisions.

  • Table 16

    Data from Figure 27 (right)

    10.17182/hepdata.71310.v1/t16

    Proton-to-pion ratio integrated for pT > 10 GeV/c measured in Pb-Pb collisions.

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