We derive one-loop matching relations for the Ioffe-time distributions related to the pion distribution amplitude (DA) and generalized parton distributions (GPDs). They are obtained from a universal expression for the one-loop correction in an operator form, and will be used in the ongoing lattice calculations of the pion DA and GPDs based on the parton pseudo-distributions approach.
@article{arxiv.1909.08474,
title = {Generalized Parton Distributions and Pseudo-Distributions},
author = {Anatoly Radyushkin},
journal= {arXiv preprint arXiv:1909.08474},
year = {2019}
}
Comments
9 pages, typos fixed, references added, some changes in text