Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-05-22
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 2 figures, 2 tables; prepared for the TeV4LHC workshop; v2 - reference added
Scientific paper
Parton Density Functions (PDFs) and their uncertainties are extremely important topics for both the Tevatron and the LHC. Experiments at the Tevatron can enhance this knowledge not only by constraining the PDF fits, but also by developing and refining the available PDF tools through feed-back from the experiments that are currently analyzing the highest energy hadron collider data available. It is important that the community has standardized tools and methods at its disposal. In this note we summarize briefly the most recent developments of the The Les Houches Accord PDF (LHAPDF), which is the modern replacement for PDFLIB. We also outline and compare the methods of quantifying the impact of PDF uncertainties on physical observables. The PDF weighting method for propagating errors from PDFs to event generator observables is outlined in detail, and example code for using this method with PYTHIA is also included.
Bourilkov Dimitri
Group Robert Craig
Whalley M. R.
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