LHC: low-x proton PDF studies

• pp @ 14 TeV :

• (i) At y=0, x=2pT/√s~10-3 (domain probed at HERA,Tevatron). Go fwd. for x<10-4

• (ii) Saturation momentum: Qs2~ 1 GeV2 (y=0), 3 GeV2 (y=5)

• (iii) Very large perturbative cross-sections: