Parton distributions: HERA-Tevatron-LHC

Understand

The parton distribution functions (PDFs) are a non-negotiable input to almost all theory predictions at hadron colliders.

• In this talk, I introduce PDF determination by global analysis and discuss selected topics concerning recent relevant data from HERA and the Tevatron, before giving some prospects for the LHC.
• The combination of H1 and ZEUS cross sections reduces uncertainties and will be an important input to future global PDF analyses.
• The theoretical description of the heavy-quark contribution to structure functions at HERA has a significant influence on predictions at the LHC.