PoS - Proceedings of Science
Volume 469 - 31st International Workshop on Deep Inelastic Scattering (DIS2024) - WG5: Spin and 3D Structure
Status and Developments in Polarised Parton Distribution Functions
A. Chiefa
Full text: pdf
Pre-published on: December 27, 2024
Published on: January 16, 2025
Abstract
The need for accurate and precise polarised parton distribution functions (PDFs) is becoming increasingly
crucial in view of the Electron-Ion Collider experimental program foreseen in the coming
years. Two global PDF determinations at next-to-next-to-leading order accuracy have been
recently presented, MAPPDFpol1.0 and BDSSV24. I review the former and I provide a comparative
discussion of other PDF sets accurate to next-to-leading order. I show that differences between
these PDF sets, due to the choice of experimental and methodological input, exceed differences
due to perturbative accuracy.
DOI: https://doi.org/10.22323/1.469.0200
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