Transverse momentum dependence of inclusive primary charged-particle production in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV

The transverse momentum ($p_{\mathrm T}$) distribution of primary charged particles is measured at midrapidity in minimum-bias p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ALICE detector at the LHC in the range $0.15

Figures

Figure 1

Transverse momentum distributions of charged particles in minimum-bias (NSD) p-Pb collisions for different pseudorapidity ranges (upper panel). The spectra are scaled by the factors indicated. The histogram represents the reference spectrum (cross section scaled by the nuclear overlap function, $T_{\mathrm{pPb}}$) in inelastic pp collisions, determined in $|\eta|< 0.8$. The lower panel shows the ratio of spectra in \ppb at backward pseudorapidities to that at $|\eta_{\mathrm{cms}}|< 0.3$. The vertical bars (boxes) represent the statistical (systematic) uncertainties.
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Figure 2

The nuclear modification factor of charged particles as a function of transverse momentum, measured in minimum-bias (NSD) p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$~TeV in two pseudorapidity ranges, $|\eta_{\mathrm{cms}}|< 0.3$ and $-1.3< \eta_{\mathrm{cms}}< 0.3$. The statistical errors are represented by vertical bars, the systematic errors by boxes around data points. The relative systematic uncertainties on the normalization are shown as boxes around unity near $p_{\mathrm{T}}=0$.
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Figure 3

Transverse momentum dependence of the nuclear modification factor $R_{\mathrm{pPb}}$ of charged particles measured in minimum-bias (NSD) p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV. The ALICE data in $|\eta_{\mathrm{cms}}|< 0.3$ (symbols) are compared to model calculations (bands, see text for details). The vertical bars (boxes) show the statistical (systematic) uncertainties. The relative systematic uncertainty on the normalization is shown as a box around unity near $p_{\mathrm{T}}=0$.
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Figure 4

Transverse momentum dependence of the nuclear modification factor $R_{\mathrm{pPb}}$ of charged particles (h$^\pm$) measured in minimum-bias (NSD) p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV in comparison to data on the nuclear modification factor $R_{\mathrm{PbPb}}$ in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 2.76$ TeV. The Pb-Pb data are for charged particle, direct photon, Z$^0$ and W$^{\pm}$ production. All data are for midrapidity.
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