All common NLO factorisation schemes for proton PDFs are special cases of a single discrete family, and scheme choice can shift LHC jet predictions by up to 20-30%.
Global QCD Analysis and the CTEQ Parton Distributions
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abstract
The CTEQ program for the determination of parton distributions through a global QCD analysis of data for various hard scattering processes is fully described. A new set of distributions, CTEQ3, incorporating several new types of data is reported and compared to the two previous sets of CTEQ distributions. Comparison with current data is discussed in some detail. The remaining uncertainties in the parton distributions and methods to further reduce them are assessed. Comparisons with the results of other global analyses are also presented.
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Factorisation schemes for proton PDFs
All common NLO factorisation schemes for proton PDFs are special cases of a single discrete family, and scheme choice can shift LHC jet predictions by up to 20-30%.