Combined measurement and QCD analysis of the inclusive e ± p scattering cross sections at HERA
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A combination is presented of the inclusive deep inelastic cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current unpolarised e ± p scattering at HERA during the period 1994-2000. The data span six orders of magnitude in negative four-momentum-transfer squared, Q 2, and in Bjorken x. The combination method used takes the correlations of systematic uncertainties into account, resulting in an improved accuracy. The combined data are the sole input in a NLO QCD analysis which determines a new set of parton distributions, HERAPDF1.0, with small experimental uncertainties. This set includes an estimate of the model and parametrisation uncertainties of the fit result.
- F. Jacquet and A. Blondel, Detection and study of the charged current event, in ep facility for Europe, U. Amaldi ed., Hamburg, Germany (1979).Google Scholar
- S. Bentvelsen et al., Reconstruction of (x,Q2) and extraction of structure functions in neutral scattering at HERA, in the proceedings of the Workshop on HERA Physics, W. Buchmuller and G. Ingelman eds., DESY, Hamburg, Germany (1992), volume 1, page 23.Google Scholar
- K. Hoeger, Measurement of x, y, Q 2 in neutral current events, in the proceedings of the Workshop on HERA Physics, W. Buchmuller and G. Ingelman eds., DESY, Hamburg, Germany (1992), volume 1, page 43.Google Scholar
- ZEUS collaboration, U. Holm, The ZEUS detector. Status Report, unpublished, DESY (1993), http://www-zeus.desy.de/bluebook/bluebook.html.
- The combined data together with the full correlation information is provided at https://www.desy.de/h1zeus/.
- M. Botje, QCDNUM version 17β, http://www.nikhef.nl/h24/qcdnum/index.html.
- C. Pascaud and F. Zomer, QCD analysis from the proton structure function F 2 measurement: issues on fitting, statistical and systematic errors, preprint LAL-95-05 [SPIRES].
- R.S. Thorne, private communication (2008).Google Scholar
Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Open AccessThis is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.