Unbiased determination of the proton structure function F-2(p) with faithful uncertainty estimation

Journal article

We construct a parametrization of the deep-inelastic structure function of the proton F2(x,Q2) 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. © SISSA 2005.

Authors: Del Debbio, L; Forte, S; Latorre, J; Piccione, A; Rojo, J

• Publication status: Published
• Journal: JOURNAL OF HIGH ENERGY PHYSICS
• Volume: 2005
• Issue: 3
• Pages: 1973-1992
• Publication date: 2005-03-01
• DOI: 10.1088/1126-6708/2005/03/080
• EISSN: 1029-8479
• ISSN: 1029-8479
• Language: English
• Keywords: deep inelastic scattering; QCD