Figure 1

Top panel: Differential cross section of charged particles in INEL pp collisions at $\sqrt{s} = 0.9$, $2.76$ and $7$ TeV as a function of $\pt$ compared to a NLO-pQCD calculation at the same energy. Only statistical uncertainties are shown.
Bottom panel: Systematic uncertainties as a function of $\pt$ for all three energies. The uncertainty on the normalization (see Table 1) of the spectra is not included.