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. 2013 Dec 6;73(12):2662. doi: 10.1140/epjc/s10052-013-2662-9

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© CERN for the benefit of the ALICE collaboration 2013

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Fig. 2 — Top: Ratio of differential cross sections of charged particles in INEL pp collisions at different collision energies as a function of p _T. Gray boxes denote p _T dependent systematic uncertainties. Normalization uncertainties are not shown (see text for details). The histograms show the same ratio determined from NLO calculations. Bottom: Ratio of data and NLO calculations derived from upper panel. A variation of the renormalization and factorization scale of the NLO calculation gives a systematic uncertainty on the double ratio of 0.5–23.6 % for 0.9 TeV/2.76 TeV, 1.0–37.8 % for 0.9 TeV/7 TeV and 2.4–12.3 % for 2.76 TeV/7 TeV (Color figure online)