High pT supp. & initial-state effects: gluon shadowing (2)

• Note however ...

• (x,Q2) scale-dependence of nuclear PDFs (specially gluons) less known than for nucleons (limited range of x, Q2, A covered in available lepton- A exp.).

•  p,d+A collisions at the same s needed to investigate

• the actual role of initial-state effects (Run-3 at RHIC !)

Notes: