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.