Structure Functions

Details Structure Functions Structure Functions

2008-12-31

arxiv.org/abs/0901.0046v1

Int.J.Mod.Phys.A24:1069-1086,2009

Physics

High Energy Physics

High Energy Physics - Experiment

Summary Talk at ICHEP08

Scientific paper

10.1142/S0217751X0904333X

Recent progress in the understanding of the nucleon is presented. The unpolarised structure functions are obtained with unprecedented precision from the combined H1 and ZEUS data and are used to extract proton parton distribution functions via NLO QCD fits. The obtained parametrisation displays an improved precision, in particular at low Bjorken x, and leads to precise predictions of cross sections for LHC phenomena. Recent data from proton-antiproton collisions at Tevatron indicate further precise constraints at large Bjorken x. The flavour content of the proton is further studied using final states with charm and beauty in DIS ep and pp collisions. Data from polarised DIS or proton-proton collisions are used to test the spin structure of the proton and to constrain the polarised parton distributions.

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