English

Towards Unpolarized GPDs from Pseudo-Distributions

High Energy Physics - Lattice 2024-09-16 v2 High Energy Physics - Phenomenology

Abstract

We present an exploration of the unpolarized isovector proton generalized parton distributions (GPDs) Hud(x,ξ,t)H^{u-d}(x, \xi, t) and Eud(x,ξ,t)E^{u-d}(x, \xi, t) in the pseudo-distribution formalism using distillation. Taking advantage of the large kinematic coverage made possible by this approach, we present results on the moments of GPDs up to the order x3x^3 -- including their skewness dependence -- at a pion mass mπ=358m_\pi = 358 MeV and a lattice spacing a=0.094a = 0.094 fm.

Keywords

Cite

@article{arxiv.2405.10304,
  title  = {Towards Unpolarized GPDs from Pseudo-Distributions},
  author = {Hervé Dutrieux and Robert G. Edwards and Colin Egerer and Joseph Karpie and Christopher Monahan and Kostas Orginos and Anatoly Radyushkin and David Richards and Eloy Romero and Savvas Zafeiropoulos},
  journal= {arXiv preprint arXiv:2405.10304},
  year   = {2024}
}

Comments

added discussion on isovector D-term and stability of fits with respect to the range in non-local separation of the operator

R2 v1 2026-06-28T16:29:53.943Z