Journal
NUCLEAR PHYSICS B
Volume 877, Issue 2, Pages 290-320Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysb.2013.10.010
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Funding
- Italian PRIN
- European EIBURS grant
- Marie Curie Intra-European Fellowship of the European Community's 7th Framework [PIEF-GA-2010-272515]
- Science and Technology Facilities Council [ST/J000329/1, ST/G000522/1] Funding Source: researchfish
- STFC [ST/G000522/1, ST/J000329/1] Funding Source: UKRI
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We present a set of parton distribution functions (PDFs), based on the NNPDF2.3 set, which includes a photon PDF, and QED contributions to parton evolution. We describe the implementation of the combined QCD + QED evolution in the NNPDF framework. We then provide a first determination of the full set of PDFs based on deep-inelastic scattering data and LHC data for W and Z/gamma* Drell-Yan production, using leading-order QED and NLO or NNLO QCD. We compare the ensuing NNPDF2.3QED PDF set to the older MRST2004QED set. We perform a preliminary investigation of the phenomenological implications of NNPDF2.3QED: specifically, photon-induced corrections to direct photon production at HERA, and high-mass dilepton and W pair production at the LHC. (C) 2013 Elsevier B.V. All rights reserved.
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