Combined PDF and strong coupling uncertainties at the LHC with NNPDF2.0

2010/05/03 by Maria Ubiali, Ubiali, Maria, Richard D. Ball +11
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1005.0397

openalex publication_date 2010/05/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present predictions for relevant LHC observables obtained with the NNPDF2.0 set. We compute the combined PDFs uncertainties on these observables, and show that combining errors in quadrature yields an excellent approximation to exact error propagation. We then compare the NNPDF2.0 results to the other global PDF fits using a common value of α_s. At LHC 7 TeV, reasonable agreement, both in central values and in uncertainties, is found for NNPDF2.0, CTEQ6.6 and MSTW08.

Citations

• The SM and NLO multileg working group: Summary report

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