Unveiling generalized parton distributions through the pseudo-distribution approach

Abstract

Understanding the intricate three-dimensional internal structure of the nucleon has been a long-standing challenge. The main quantitative tool to map out this structure are the generalized parton distributions (GPDs). In these proceedings, we present our exploratory results from applying the pseudo-distribution approach on the lattice, showing the unpolarized isovector $E$ GPD as an example. We use one ensemble of $N_f=2+1+1$ twisted mass fermions with a clover term, at a non-physical pion mass of $260\text{ MeV}$ and a lattice spacing of $0.093\text{ fm}$.

Comments: 8 pages, 3 figures, contribution to the 40th International Symposium on Lattice Field Theory, Lattice 2023, Fermilab, Batavia, Illinois, USA