Parton distributions with LHC data
Richard D. Ball,Valerio Bertone,Stefano Carrazza,Christopher S. Deans,Luigi Del Debbio,Stefano Forte,Alberto Guffanti,Nathan P. Hartland,José I. Latorre,Juan Rojo,Maria Ubiali +10 more
TLDR
In this article, the first determination of parton distributions of the nucleon at NLO and NNLO based on a global data set which includes LHC data: NNPDF2.3 is presented, which includes, besides the deep inelastic, Drell-Yan, gauge boson production and jet data already used in previous global PDF determinations, all relevant LHC Data for which experimental systematic uncertainties are currently available: ATLAS and LHCb W and Z rapidity distributions from the 2010 run, CMS W electron asymmetry data from the 2011 run,About:
This article is published in Nuclear Physics.The article was published on 2013-02-11 and is currently open access. It has received 1809 citations till now. The article focuses on the topics: Large Hadron Collider & Tevatron.read more
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Journal ArticleDOI
Parton distributions for the LHC Run II
Richard D. Ball,Richard D. Ball,Valerio Bertone,Stefano Carrazza,Stefano Carrazza,Stefano Carrazza,Christopher S. Deans,Luigi Del Debbio,Stefano Forte,Stefano Forte,Alberto Guffanti,Nathan P. Hartland,José I. Latorre,Juan Rojo,Maria Ubiali +14 more
TL;DR: In this article, the first set of parton distribution functions (PDFs) determined with a methodology validated by a closure test is presented, which is based on LO, NLO and NNLO QCD theory and also includes electroweak corrections.
Journal ArticleDOI
LHAPDF6: parton density access in the LHC precision era
Andrew Buckley,James Ferrando,Stephen Lloyd,Karl Nordström,Ben Page,Martin Rüfenacht,Marek Schönherr,G. Watt +7 more
TL;DR: In this paper, the authors present the LHAPDF-6 library, a ground-up re-engineering of the PDFLIB/LHAPDF paradigm for PDF access which removes all limits on use of concurrent PDF sets, massively reduces static memory requirements, offers improved CPU performance, and fixes fundamental bugs in multi-set access to PDF metadata.
Journal ArticleDOI
Parton distributions in the LHC era: MMHT 2014 PDFs
TL;DR: In this paper, the authors presented LO, NLO and NNLO sets of parton distribution functions (PDFs) of the proton determined from global analyses of the available hard scattering data.
Journal ArticleDOI
PDF4LHC recommendations for LHC Run II
Jon Butterworth,Stefano Carrazza,Stefano Carrazza,Amanda Cooper-Sarkar,Albert De Roeck,J. Feltesse,Stefano Forte,Jun Gao,Sasha Glazov,Joey Huston,Zahari Kassabov,Zahari Kassabov,R. McNulty,Andreas Morsch,Pavel Nadolsky,Voica Radescu,Juan Rojo,Robert S. Thorne +17 more
TL;DR: In this article, the authors provide an updated recommendation for the usage of sets of parton distribution functions (PDFs) and the assessment of PDF and PDF+$\alpha_s$ uncertainties suitable for applications at the LHC Run II.
Journal ArticleDOI
Parton distributions from high-precision collider data
Richard D. Ball,Valerio Bertone,Stefano Carrazza,Luigi Del Debbio,Stefano Forte,Patrick Groth-Merrild,Alberto Guffanti,Nathan P. Hartland,Zahari Kassabov,José I. Latorre,José I. Latorre,Emanuele R. Nocera,Juan Rojo,Luca Rottoli,Emma Slade,Maria Ubiali +15 more
TL;DR: NNPDF31 as discussed by the authors is the first global set of PDFs determined using a methodology validated by a closure test, which is motivated by recent progress in methodology and available data, and involves both on the methodological side, parametrize and determine the charm PDF alongside the light-quark and gluon ones, thereby increasing from seven to eight the number of independent PDFs.
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TL;DR: In this article, the authors extract new parton distribution functions (PDFs) of the proton by global analysis of hard scattering data in the general-mass framework of perturbative quantum chromodynamics.
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