  We study single inclusive hadron production in proton-proton and
proton-nucleus collisions in the CGC framework. The parameters in the
calculation are determined solely by standard nuclear geometry and by
electron-proton deep inelastic scattering data, which is fit using the running
coupling BK equation. We show that it is possible to obtain a good fit of the
HERA inclusive cross section also without an anomalous dimension in the initial
condition. We argue that one must consistently use the proton transverse area
as measured by a high virtuality probe in DIS also for the single inclusive
cross section in proton-proton and proton-nucleus collisions. We show that this
leads to a midrapidity nuclear modification ratio R_pA that approaches unity at
high transverse momentum independently of sqrt(s), in contrast to most CGC
calculations in the literature. We also present predictions for future forward
R_pA measurements at the LHC.
