Report number
| arXiv:1308.0598 ; EDINBURGH-2013-20 ; FR-PHENO-2013-008 ; CERN-PH-TH-2013-075 ; Edinburgh 2013/20 ; IFUM-1014-FT ; FR-PHENO-2013-008,
CERN-PH-TH/2013-075 ; EDINBURGH 2013-20 ; IFUM-1014-FT ; FR-PHENO-2013-008 ; CERN-PH-TH-2013-075 |
Title
| Parton distributions with QED corrections |
Author(s)
| Ball, Richard D. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Bertone, Valerio (Freiburg U.) ; Carrazza, Stefano (Milan U. ; INFN, Milan) ; Del Debbio, Luigi (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Forte, Stefano (Milan U. ; INFN, Milan) ; Guffanti, Alberto (Bohr Inst.) ; Hartland, Nathan P. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Rojo, Juan (CERN) |
Collaboration
| NNPDF Collaboration |
Publication
| 2013-12-11 |
Imprint
| 02 Aug 2013 |
Number of pages
| 31 |
Note
| 38 pages, 27 figures. Final version, to be published in Nucl. Phys.
B. Several corrections and improvements, in particular Fig.5 added, Fig.2,
Fig. 6 and Fig.8 improved, Fig.21 corrected |
In:
| Nucl. Phys. B 877 (2013) 290-320 |
DOI
| 10.1016/j.nuclphysb.2013.10.010
|
Subject category
| Particle Physics - Phenomenology |
Abstract
| 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. |
Copyright/License
| Preprint: © 2013-2025 CERN (License: CC-BY-3.0) |