Parton distributions with QED corrections

被引：432

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

页码：290 / 320

页数：31

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