Probing the space-time structure of quark and gluon transport in proton-nucleus collisions at collider energies

The √s and A dependence of ultrarelativistic pA collisions for energies corresponding to future collider experiments at RHIC and LHC is studied with focus on medium effects that affect the parton evolution in nuclear matter. Within the parton cascade model the saturation of the parton densities due to unitarity conservation, the self-contained balance of parton emission and fusion processes, and the mechanism of dynamical screening of long range interactions are analyzed. The resulting inclusive spectra and properties of secondary hadrons are discussed in order to extract aspects of ''QCD in medium'' from collider experiments