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Dispersion representations for hard exclusive reactions
M. Diehl, D. Yu. Ivanov
A number of hard exclusive scattering processes can be described in terms of generalized parton distributions (GPDs) and perturbative hard-scattering kernels. Both the physical amp…
Exclusive vector meson electroproduction
D. Yu. Ivanov
We discuss exclusive vector meson electroproduction within the QCD collinear factorization framework. In Bjorken kinematics the amplitude factorizes in a convolution of the nonpert…
Dispersion representations for hard exclusive processes
M. Diehl, D. Yu. Ivanov
Several hard exclusive scattering processes admit a description in terms of generalized parton distributions and perturbative hard-scattering kernels. Both the physical amplitude a…
Vector Meson production from NLL BFKL
D. Yu. Ivanov, A. Papa
The amplitude for the forward electroproduction of two light vector mesons can be written completely within perturbative QCD in the Regge limit with next-to-leading accuracy, thus…