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Parton distribution functions at LO, NLO and NNLO with correlated uncertainties between orders

Sets of parton distribution functions (PDFs) of the proton are reported for the leading (LO), next-to-leading (NLO) and next-to-next-to-leading-order (NNLO) QCD calculations. The parton distribution functions are determined with the HERAFitter program using the data from the HERA experiments and pre...

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Main Authors: Belov, P. (Author) , Britzger, D. (Author) , Camarda, S. (Author) , Cooper-Sarkar, A. M. (Author) , Diaconu, C. (Author) , Feltesse, J. (Author) , Gizhko, A. (Author) , Glazov, A. (Author) , Kolesnikov, V. (Author) , Lohwasser, K. (Author) , Luszczak, A. (Author) , Myronenko, V. (Author) , Pirumov, H. (Author) , Plačakytė, R. (Author) , Rabbertz, K. (Author) , Radescu, V. (Author) , Sapronov, A. (Author) , Schöning, André (Author) , Shushkevich, S. (Author) , Slominski, W. (Author) , Starovoitov, P. (Author) , Sutton, M. (Author) , Tomaszewska, J. (Author) , Turkot, O. (Author) , Watt, G. (Author) , Wichmann, K. (Author) , Lisovyi, M. (Author)
Format: Article (Journal)
Language:English
Published: 30 September 2014
In: The European physical journal. C, Particles and fields
Year: 2014, Volume: 74, Issue: 10
ISSN:1434-6052
DOI:10.1140/epjc/s10052-014-3039-4
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-014-3039-4
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Author Notes:HERAFitter developers’ team: P. Belov, D. Britzger, S. Camarda, A. M. Cooper-Sarkar, C. Diaconu, J. Feltesse, A. Gizhko, A. Glazov, V. Kolesnikov, K. Lohwasser, A. Luszczak, V. Myronenko, H. Pirumov, R. Plačakytė, K. Rabbertz, V. Radescu, A. Sapronov, A. Schöning, S. Shushkevich, W. Slominski, P. Starovoitov, M. Sutton, J. Tomaszewska, O. Turkot, G. Watt, K. Wichmann, and M. Lisovyi
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Summary:Sets of parton distribution functions (PDFs) of the proton are reported for the leading (LO), next-to-leading (NLO) and next-to-next-to-leading-order (NNLO) QCD calculations. The parton distribution functions are determined with the HERAFitter program using the data from the HERA experiments and preserving correlations between uncertainties for the LO, NLO and NNLO PDF sets. The sets are used to study cross-section ratios and their uncertainties when calculated at different orders in QCD. A reduction of the overall theoretical uncertainty is observed if correlations between the PDF sets are taken into account for the ratio of $$WW$$WWdi-boson to $$Z$$Zboson production cross sections at the LHC.
Item Description:Gesehen am 05.08.2020
Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-014-3039-4

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