Parton distributions with QED corrections

被引：426
作者：
Ball, Richard D. [1 ]
Bertone, Valerio [2 ]
Carrazza, Stefano [3 ,4 ]
Del Debbio, Luigi [1 ]
Forte, Stefano [3 ,4 ]
Guffanti, Alberto [5 ,6 ]
Hartland, Nathan P. [1 ]
Rojo, Juan [7 ]
机构：
[1] Univ Edinburgh, Higgs Ctr Theoret Phys, JCMB, KB, Edinburgh EH9 3JZ, Midlothian, Scotland
[2] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
[3] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[4] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
[5] Niels Bohr Int Acad, DK-2100 Copenhagen, Denmark
[6] Niels Bohr Inst, Discovery Ctr, DK-2100 Copenhagen, Denmark
[7] CERN, TH Unit, PH Dept, CH-1211 Geneva 23, Switzerland
来源：
NUCLEAR PHYSICS B | 2013年 / 877卷 / 02期
关键词：
ONE-LOOP CORRECTIONS; DRELL-YAN PROCESS; RADIATIVE-CORRECTIONS; PP COLLISIONS; ELECTROWEAK CORRECTIONS; CROSS-SECTIONS; NEUTRINO; SEARCH; SCATTERING; EVOLUTION;
D O I：
10.1016/j.nuclphysb.2013.10.010
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
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.
引用
收藏
页码：290 / 320
页数：31
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