The PDF4LHC Working Group Interim Recommendations
Michiel Botje, Jon Butterworth, Amanda Cooper-Sarkar, Albert de Roeck,, Joel Feltesse, Stefano Forte, Alexander Glazov, Joey Huston, Ronan McNulty,, Torbjorn Sjostrand, Robert Thorne
TL;DR
This paper summarizes interim recommendations for using parton distribution functions (PDFs) and their uncertainties at the LHC, providing guidance on calculations and a review of benchmark cross section predictions at 7 TeV.
Contribution
It offers the first set of interim guidelines for PDF usage and uncertainty estimation at the LHC, consolidating recommendations from multiple PDF fitting groups.
Findings
Provides a user guide for PDF uncertainty computation
Summarizes benchmark cross section predictions at 7 TeV
Recommends standardized procedures for PDF application
Abstract
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 PDF 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 (7 TeV) at NLO using modern PDFs currently available from 6 PDF fitting groups.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions