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Abstract: A combination is presented of the inclusive deep inelastic cross sectionsmeasured by the H1 and ZEUS Collaborations in neutral and charged currentunpolarised ep scattering at HERA during the period 1994-2000. The data spansix orders of magnitude in negative four-momentum-transfer squared, Q^2, and inBjorken x. The combination method used takes the correlations of systematicuncertainties into account, resulting in an improved accuracy. The combineddata are the sole input in a NLO QCD analysis which determines a new set ofparton distributions, HERAPDF1.0, with small experimental uncertainties. Thisset includes an estimate of the model and parametrisation uncertainties of thefit result.



Autor: The H1, ZEUS Collaborations

Fuente: https://arxiv.org/



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