Physics

Towards unpolarized GPDs from pseudo-distributions

H. Dutrieux, R. G. Edwards, et al.

Delve into the intriguing world of unpolarized isovector proton generalized parton distributions (GPDs) with cutting-edge results presented by Hervé Dutrieux, Robert G. Edwards, Colin Egerer, Joseph Karpie, Christopher Monahan, Kostas Orginos, Anatoly Radyushkin, David Richards, Eloy Romero, and Savvas Zafeiropoulos. This exploration utilizes a novel pseudo-distribution formalism and distillation to unveil moments of GPDs, revealing insights at a pion mass of 358 MeV and a lattice spacing of 0.094 fm.

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Abstract

We present an exploration of the unpolarized isovector proton generalized parton distributions (GPDs) $H^{u-d}(x,\xi,t)$ and $E^{u-d}(x,\xi,t)$ 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 $x^3$ — including their skewness dependence — at a pion mass $m_\pi = 358$ MeV and a lattice spacing $a = 0.094$ fm.

Publisher

Journal of High Energy Physics

Published On

Aug 20, 2024

Authors

Hervé Dutrieux, Robert G. Edwards, Colin Egerer, Joseph Karpie, Christopher Monahan, Kostas Orginos, Anatoly Radyushkin, David Richards, Eloy Romero, Savvas Zafeiropoulos

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