Author(s): Anthony Francis, Patrick Fritzsch, Rohith Karur, Jangho Kim, Giovanni Pederiva, Dimitra A. Pefkou, Antonio Rago, Andrea Shindler, André Walker-Loud, and Savvas Zafeiropoulos
We present a nonperturbative determination of the pion valence parton distribution function (PDF) moment ratios $⟨{x}^{n−1}⟩/⟨x⟩$ up to $n=6$, using the gradient flow in lattice quantum chromodynamics (QCD). As a testing ground, we employ SU(3) isosymmetric gauge...