Abstracto
- The structure of generalized parton distributions is determined from light-front holographic QCD up to a universal reparametrization function wðxÞ which incorporates Regge behavior at small x and inclusive counting rules at x → 1. A simple ansatz for wðxÞ that fulfills these physics constraints with a singleparameter 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.