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Towards a new generation of parton densities with deep learning models

High Energy Physics - Phenomenology 2019-09-04 v1 High Energy Physics - Experiment

Abstract

We present a new regression model for the determination of parton distribution functions (PDF) using techniques inspired from deep learning projects. In the context of the NNPDF methodology, we implement a new efficient computing framework based on graph generated models for PDF parametrization and gradient descent optimization. The best model configuration is derived from a robust cross-validation mechanism through a hyperparametrization tune procedure. We show that results provided by this new framework outperforms the current state-of-the-art PDF fitting methodology in terms of best model selection and computational resources usage.

Keywords

Cite

@article{arxiv.1907.05075,
  title  = {Towards a new generation of parton densities with deep learning models},
  author = {Stefano Carrazza and Juan Cruz-Martinez},
  journal= {arXiv preprint arXiv:1907.05075},
  year   = {2019}
}

Comments

9 pages, 10 figures