Report/Journal Article

PUBDB-2017-00302

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png PDF4LHC recommendations for LHC Run II

Butterworth, J. ; Carrazza, S. ; Cooper-Sarkar, A. ; De Roeck, A. ; Feltesse, J. ; Forte, S. ; Gao, J. ; Glazov, S.DESY* ; Huston, J. ; Kassabov, Z. ; McNulty, R. ; Morsch, A. ; Nadolsky, P. ; Radescu, V. ; Rojo, J. (Corresponding author) ; Thorne, R.

2016
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/0954-3899/43/2/023001  doi:10.3204/PUBDB-2017-00302

Report No.: CERN-PH-TH-2015-249; LCTS-2015-27; OUTP-15-17P; SMU-HEP-15-12; TIF-UNIMI-2015-14; arXiv:1510.03865

Abstract: We 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. We review developments since the previous PDF4LHC recommendation, and discuss and compare the new generation of PDFs, which include substantial information from experimental data from the Run I of the LHC. We then propose a new prescription for the combination of a suitable subset of the available PDF sets, which is presented in terms of a single combined PDF set. We finally discuss tools which allow for the delivery of this combined set in terms of optimized sets of Hessian eigenvectors or Monte Carlo replicas, and their usage, and provide some examples of their application to LHC phenomenology. This paper is dedicated to the memory of Guido Altarelli (1941–2015), whose seminal work made possible the quantitative study of PDFs.

Keyword(s): CERN LHC Coll: upgrade ; p p: scattering ; nucleon: parton: distribution function ; quantum chromodynamics ; numerical calculations: Monte Carlo

Note: 65 pages, 20 figures, additional benchmark comparison plots available from http://www.hep.ucl.ac.uk/pdf4lhc/mc2h-gallery/website ; ©IOP Publishing Ltd

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. HERA: H1

Appears in the scientific report 2016

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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