Speaker
Alberto Accardi
(Christopher Newport U. and Jefferson Lab)
Description
We investigate the systematic uncertainties and potential biases arising from the inclusion of large-$x$ corrections to proton and deuteron DIS data in global QCD analyses. Using the CTEQ-JLab framework, we examine various approaches to implementing higher-twist corrections in nucleon structure functions and off-shell PDF modifications in deuteron targets. We analyze how these components interact and influence the determination of the $d$-quark PDF and the neutron structure function at large $x$. We find that it is very important to consider isospin-dependent higher-twist corrections in order to minimize implementation biases in the extracted quantities.
Authors
Matteo Cerutti
(Christopher Newport University and Jefferson Lab)
Alberto Accardi
(Christopher Newport U. and Jefferson Lab)
Ishara Fernando
(University of Virginia)
Shujie Li
(Berkeley Lab)
Jeff Owens
(Florida State University)
Sanghwa Park
(Jefferson Lab)
