Specific energy loss, ${\text{d}E/\text{d}x}$, as a function of momentum $p$ in the pseudorapidity range $-0.5 < \eta < -0.375$ for minimum bias p-Pb collisions. In each momentum bin the ${\text{d}E/\text{d}x}$ spectra have been normalized to have unit integrals and only bins with more than 2% of the counts are shown (making electrons not visible in the figure, except at very low momentum). The curves show the $\langle {\text{d}E/\text{d}x} \rangle$ response for pions, kaons, protons and electrons.