Aug 4 – 7, 2020
Asia/Tokyo timezone

Nucleon and Pion Ioffe time pseudo-distributions

Aug 7, 2020, 5:00 PM


Hadron Structure Hadron Structure


Joseph Karpie (*) (Columbia University)


The light-cone definition of Parton Distribution Functions (PDFs) does not allow for a direct ab initio determination employing methods of Lattice QCD simulations that naturally take place in Euclidean spacetime. In this presentation we focus on pseudo-PDFs where the starting point is the equal time hadronic matrix element with the quark and anti-quark fields separated by a finite distance. We focus on Ioffe-time distributions, which are functions of the Ioffe-time ν, and can be understood as the Fourier transforms of parton distribution functions with respect to the momentum fraction variable x. We present lattice results for the case of the nucleon and the pion, we discuss several lattice systematics and we also perform a comparison with the pertinent phenomenological determinations

Primary author

Joseph Karpie (*) (Columbia University)


Presentation materials