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URN: urn:nbn:de:swb:90-446381

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

Belov, P.; Britzger, D.; Camarda, S.; Cooper-Sarkar, A.M.; Diaconu, C.; Feltesse, J.; Gizhko, A.; Glazov, A.; Kolesnikov, V.; Lohwasser, K.; Luszczak, A.; Myronenko, V.; Pirumov, H.; Plaakyt, R.; Rabbertz, K.; Radescu, V.; Sapronov, A.; Schöning, A.; Shushkevich, S.; Slominski, W.; ... mehr

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 di-boson to Z boson production cross sections at the LHC.

Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2014
Sprache Englisch
Identifikator ISSN: 1434-6044
KITopen ID: 1000044638
Erschienen in The European Physical Journal C
Band 74
Heft 10
Seiten 3039
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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