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arXiv · 2610.24691

Global analyses of PDFs in the precision era

Juan M. Cruz-Martinez
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Abstract

Parton distribution functions or PDFs are determined through global fits to an ever-increasing array of data, including deep-inelastic scattering at fixed-target experiments and HERA, and hadron collisions at the Tevatron and LHC. As the dataset has expanded, theoretical accuracy has improved from partial next-to-next-to-leading order (NNLO) coverage about 20 years ago to approximate N$^3$LO global fits today. The fitting collaborations must reconcile these complex calculations and data analyses while ensuring that quoted PDF uncertainty bands remain reliable.

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Juan M. Cruz-Martinez. 2026-10-17. Global analyses of PDFs in the precision era. https://arxiv.org/abs/2610.24691

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