Speaker
Description
The parton distribution functions (PDFs) are crucial to the understanding of the internal structure of hadrons, and their precise determination is necessary for searches of BSM physics in collider experiments. Directly accessing PDFs in Lattice QCD calculations is impossible due to the Euclidean space-time geometry. Mellin moments of PDFs are defined in terms of local operators that can be computed in Lattice QCD, but suffer from power divergent mixing beyond a certain order due to the reduced symmetry of the hypercubic lattice. Recently, a method was proposed [1] to use gradient flow in order to circumvent this mixing and access moments of PDFs of any order. In this talk, I will discuss the implementation of this method, and present results on moments of PDFs of hadrons using four stabilized Wilson fermion ensembles generated by the OpenLat [2] initiative.
[1] A. Shindler Phys.Rev.D 110 (2024) 5, L051503, 2311.18704
[2] https://openlat1.gitlab.io
