Uncertainties on parton distribution functions from the ZEUS NLO QCD fit to data on deep inelastic scattering
نویسنده
چکیده
An NLO QCD analysis of the ZEUS data on ep deep inelastic scattering together with fixed-target data has been performed from which the gluon and quark densities of the proton and the value of the strong coupling parameter, αs(M 2 Z), have been extracted. The study includes a full treatment of the experimental systematic uncertainties, including point-to-point correlations. Different ways of incorporating correlated systematic uncertainties into the fit are discussed and compared.
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