Figure 6

Top: Measured pseudorapidity dependence of $\dNdEta$ at $\sqrt{s} = 0.9~$TeV for INEL (full symbols) and NSD (open symbols) collisions. The ALICE measurements (squares) are compared to UA5 p$\bar{\mbox{p}}$ data [40] (triangles) and to CMS pp data at the LHC [4] (stars). Bottom: Measured pseudorapidity dependence of $\dNdEta$ at $\sqrt{s} = 2.36~$TeV for INEL (full symbols) and NSD (open symbols) collisions. The ALICE measurement (squares) for NSD collisions is compared to CMS NSD data [4] (stars) and to model predictions, PYTHIA tune D6T [9] (solid line) and PHOJET [12] (dashed line). For the ALICE data, systematic uncertainties are shown as shaded areas; statistical uncertainties are invisible (smaller than data marks). For CMS data error bars show the statistical and systematic uncertainties added in quadrature.