Status of Deep-Inelastic Scattering and PDFs for the LHC
por
Johannes Blümlein
(DESY Zeuthen)
→
Europe/Madrid
Sala Seminarios IFIC (Edf. Institutos de Investigación)
Sala Seminarios IFIC
Edf. Institutos de Investigación
Descripción
The status of unpolarized and polarized parton distributions is reviewed. After describing the theoretical background I discuss the precision reached for the various flavor distributions and the gluon distribution in DIS QCD-analyses at the 3-loop level. The status of alpha_s(M_Z^2) determined in global analysis is discussed. Finally I discuss the errors of key processes at the LHC like W/Z-production, the Drell-Yan process, ttbar- and Higgs-boson production w.r.t. the uncertainty of parton densities.