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arXiv · 1801.09154

Universality of Generalized Parton Distributions in Light-Front Holographic QCD

Guy F. de Teramond·Tianbo Liu·Raza Sabbir Sufian·Hans Gunter Dosch·Stanley J. Brodsky·Alexandre Deur
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Abstract

The structure of generalized parton distributions is determined from light-front holographic QCD up to a universal reparametrization function $w(x)$ which incorporates Regge behavior at small $x$ and inclusive counting rules at $x \to 1$. A simple ansatz for $w(x)$ which fulfills these physics constraints with a single-parameter results in precise descriptions of both the nucleon and the pion quark distribution functions in comparison with global fits. The analytic structure of the amplitudes leads to a connection with the Veneziano model and hence to a nontrivial connection with Regge theory and the hadron spectrum.

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Guy F. de Teramond, Tianbo Liu, Raza Sabbir Sufian, Hans Gunter Dosch, Stanley J. Brodsky, Alexandre Deur. 2018-01-28. Universality of Generalized Parton Distributions in Light-Front Holographic QCD. https://doi.org/10.1103/physrevlett.120.182001

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