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arxiv: 1801.09154 · v3 · submitted 2018-01-28 · ✦ hep-ph · hep-ex· hep-lat· hep-th· nucl-th

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Universality of Generalized Parton Distributions in Light-Front Holographic QCD

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classification ✦ hep-ph hep-exhep-lathep-thnucl-th
keywords connectiondistributionsgeneralizedholographiclight-frontpartonreggestructure
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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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Cited by 4 Pith papers

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