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Transverse momentum spectra and nuclear modification factors of charged particles in Xe-Xe collisions at $\sqrt{s_{\rm NN}}$ = 5.44 TeV

The ALICE collaboration
Phys.Lett.B 788 (2019) 166-179, 2019.

Abstract (data abstract)
Transverse momentum $(p_{\rm T})$ spectra of charged particles was measured at mid-pseudorapidity in Xe–Xe collisions at $\sqrt{s_{\rm NN}} = 5.44$ TeV, in the kinematic range of $0.15<p_{\rm T}<50$ GeV/c and $|\eta|<0.8$. The pp reference at $\sqrt{s} = 5.44$ TeV is interpolated between existing pp measurements at $\sqrt{s} = 5.02$ and $7$ TeV. The nuclear modification factor is calculated for Xe-Xe and Pb-Pb collisions at similar center-of-mass energy, as a function of $p_{\rm T}$ and the charged particle multiplicity density. The average transverse momentum $\langle p_{\rm T} \rangle$ is calculated for both systems, as well as the ratio between them.

  • Table 1

    Data from Figure 3


    Transverse momentum spectra of charged particles in XeXe collisions in nine centrality classes.

  • Table 2

    Data from Figure 3


    Interpolated pp reference spectrum and invariant cross section.

  • Table 3

    Data from Figure 4


    Nuclear modification factor for XeXe. Additional systematic error: 0-5 pct data: +6.1 pct -6.1 pct 5-10 pct data: +6.6 pct...

  • Table 4

    Data from Figure 5


    Ratio of transverse momentum spectra in Xe-Xe and Pb-Pb.

  • Table 5

    Data from Figure 6


    Raa vs $\langle dNch/d\eta \rangle$.

  • Table 6

    Data from Figure 6


    Raa vs $\langle dNch/d\eta \rangle$.

  • Table 7

    Data from Figure 7


    Raa vs $\langle dNch/d\eta \rangle$.

  • Table 8

    Data from Figure 8


    Average transverse momentum vs centrality percentage for PbPb and XeXe. And the ratio between collision systems.

Version 2 modifications: the systematic errors are included. In particular this has an impact on the ratio of the average transverse momentum of charged particles measured in Xe+Xe and Pb+Pb collisions, which ends up having smaller error bars when compared to the ones shown in the ALICE publication

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