Volume 469 -
31st International Workshop on Deep Inelastic Scattering (DIS2024) -
WG1: Structure Functions and Parton Densities
Systematic uncertainty of off-shell corrections and higher-twist contribution in DIS at large x
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Pre-published on:
December 27, 2024
Published on:
January 16, 2025
Abstract
We study the systematic uncertainty and biases introduced by theoretical assumptions needed to include large-$x$ DIS data in a global QCD analysis. Working in the CTEQ-JLab framework, we focus on different implementations of higher-twist corrections to the nucleon structure functions and of offshell PDF deformations in deuteron targets and discuss how their interplay impacts the extraction of the $d$-quark PDF and the calculation of the neutron structure function at large $x$.
DOI: https://doi.org/10.22323/1.469.0031
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.