Model Calculations of Euclidean Correlators

Studying light-cone parton distribution functions (PDFs) through Euclidean correlators in lattice QCD is currently a very active field of research. In particular, the parton quasi-distributions (quasi-PDFs) have attracted a lot of attention. Quasi-PDFs converge to their respective standard distributions in the limit of infinite hadron momentum. We explore the quasi-distribution approach for twist-2 generalized parton distributions (GPDs) in a frequently used diquark spectator model. Our main focus is to test how well the quasi-distributions agree with their light-cone counterparts for finite hadron momenta. We also discuss model-independent results for moments of quasi-distributions.