Generalized Parton Distributions from Lattice QCD
Abstract
In recent years, there has been a breakthrough in lattice calculations of -dependent partonic distributions. This encompasses also distributions describing the 3D structure of the nucleon, such as generalized parton distributions (GPDs). We report a new method of accessing GPDs in asymmetric frames of reference, relying on a novel Lorentz-covariant parametrization of the accessed off-forward matrix elements in boosted nucleon states. The approach offers the possibility of computationally more efficient determination of the full parameter dependence of GPDs and as such, it can contribute to better understanding of nucleon's structure.
Cite
@article{arxiv.2304.14970,
title = {Generalized Parton Distributions from Lattice QCD},
author = {Krzysztof Cichy and Shohini Bhattacharya and Martha Constantinou and Jack Dodson and Xiang Gao and Andreas Metz and Joshua Miller and Swagato Mukherjee and Aurora Scapellato and Fernanda Steffens and Yong Zhao},
journal= {arXiv preprint arXiv:2304.14970},
year = {2023}
}
Comments
Proceedings of XXIX Cracow Epiphany Conference on Physics at the EIC and Future Facilities, 16-19 January 2023; 15 pages, 7 figures