A data-based parametrization of parton distribution functions

  title={A data-based parametrization of parton distribution functions},
  author={Stefano Carrazza and Juan Cruz-Martinez and Roy Stegeman},
  journal={The European Physical Journal C},
Since the first determination of a structure function many decades ago, all methodologies used to determine structure functions or parton distribution functions (PDFs) have employed a common prefactor as part of the parametrization. The NNPDF collaboration pioneered the use of neural networks to overcome the inherent bias of constraining the space of solution with a fixed functional form while still keeping the same common prefactor as a preprocessing. Over the years various, increasingly… 

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