Related paper Centrality dependence of particle production in p-Pb collisions at $\sqrt{s_{\rm NN} }$= 5.02 TeV Multiplicity distribution used as centrality estimators in p-Pb collisions, compared to the distribution in pp collisions at $\sqrt{s}$ = 7 TeV. The dashed lines mark the 80% and the 60% percentile of the p-Pb cross-section respectively.[png] [pdf]