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Unbiased determination of the proton structure function F_2^p with faithful uncertainty estimation

Research output: Contribution to journalArticle

  • The NNPDF Collaboration
  • Luigi Del Debbio
  • Stefano Forte
  • Jose latorre
  • Andrea Piccione
  • Joan Rojo

Related Edinburgh Organisations

Original languageEnglish
Number of pages19
JournalJournal of High Energy Physics
Issue number03
Publication statusPublished - 9 Jan 2005


We construct a parametrization of the deep-inelastic structure function of the proton F_2 based on all available experimental information from charged lepton deep-inelastic scattering experiments. The parametrization effectively provides a bias-free determination of the probability measure in the space of structure functions, which retains information on experimental errors and correlations. The result is obtained in the form of a Monte Carlo sample of neural networks trained on an ensemble of replicas of the experimental data. We discuss in detail the techniques required for the construction of bias-free parameterizations of large amounts of structure function data, in view of future applications to the determination of parton distributions based on the same method.

    Research areas

  • hep-ph, Deep Inelastic Scattering, QCD

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