The PDF4LHC Working Group Interim Recommendations

By Michiel Botje, J. Butterworth, A. Cooper-Sarkar, A. Roeck, J. Feltesse, S. Forte, A. Glazov, J. Huston, R. McNulty, T. Sjostrand and 1 more. 2011

664 citations recorded by the source corpus.

This note provides an interim summary of the current recommendations of the PDF4LHC working group for the use of parton distribution functions (PDFs) and of PDF uncertainties at the LHC, for cross section and cross section uncertainty calculations. It also contains a succinct user guide to the computation of PDFs, uncertainties and correlations using available PDF sets. A companion note (the PDF4LHC Working Group Interim Report) summarizes predictions for benchmark cross sections at the LHC at NLO using modern PDFs currently available from 6 PDF fitting groups.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2c2e7b421a056c2355b4bb35907e6306281d6457

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Citations in the corpus

Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states (2013, background): “As a result of the analysis in that control sample, a factor of 1.5± 0.5 with respect to the predicted LO cross section is found.”
Identification of b-quark jets with the CMS experiment (2012, methodology): “The uncertainties were then combined according to the PDF4LHC prescriptions [15].”
The PDF4LHC report on PDFs and LHC data: Results from Run I and preparation for Run II (2015, methodology): “We would like to mention that, in parallel with the studies summarized in this report, an update of the benchmark comparisons between different PDF sets, as well as between different methods to combine them [53–55], is also being performed, with the aim of updating the current PDF4LHC recommendation”
Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\o (2015, neutral): “[76].”
Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV (2013, neutral): “[60].”
Search for dark matter, extra dimensions, and unparticles in monojet events in proton–proton collisions at s=8 TeV (2015, background): “The sources of systematic uncertainties considered are: jet energy scale, which is estimated by shifting the four-vectors of the jets by an η- and pT-dependent factor [32]; PDFs, evaluated using the PDF4LHC prescription from the envelope of the CT10 [59], MSTW2008NLO [60], NNPDF2.”
Measurement of the top quark mass using proton-proton data at √s=7 and 8 TeV (2016, methodology): “The uncertainties in the PDFs and their effect on the measured value of mt are studied by reweighting a tt sample with different PDF eigenvectors using the PDF4LHC prescription [49].”
Search for doubly charged Higgs boson production in multi-lepton final states with the ATLAS detector using proton–proton collisions at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepac (2017, positive): “variations of the PDF set and αS, following the PDF4LHC [60] prescription using the MSTW2008 68% CL NNLO [61], CT10 NNLO [62], and NNPDF2.”