Higher Mellin Moments of the Unpolarized PDF of the Pion and the Kaon from Lattice QCD
hep-lathep-exhep-phnucl-th2026-05v1license
Abstract
We present results on the Mellin moments of the unpolarized parton distribution function (PDF) of the pion and kaon up to the fourth order. The computation is done using one gauge ensemble of twisted mass fermions with quark masses tuned to approximately their physical values. We reconstruct the valence pion and kaon PDFs using the connected contributions to the three Mellin moments. We compare our results on the Mellin moments and the reconstructed PDFs with other lattice QCD and phenomenological determinations.
Comments: 14 pages and 14 figures
Cite
@article{arxiv.2605.29998,
title = {Higher Mellin Moments of the Unpolarized PDF of the Pion and the Kaon from Lattice QCD},
author = {Constantia Alexandrou and Simone Bacchio and Priyajit Jana and Marcus Petschlies and Luis Alberto Rodriguez Chacon and Gregoris Spanoudes and Fernanda Steffens and Carsten Urbach and Urs Wenger},
journal= {arXiv preprint arXiv:2605.29998},
year = {2026}
}