Speaker
Sangho Kim
(Soongsil University)
Description
Exclusive electroproduction of vector mesons is a suitable place to test model predictions in a kinematic region where the transition between the hadronic and partonic domains is involved according to the ranges of the photon virtuality Q^2 and the photon energy W. We investigate vector-meson electroproduction off the proton target by employing an effective Lagrangian approach In addition to the universally accepted Pomeron exchange, we consider various meson exchanges in the t channel. We also introduce some Pomeron models for the description of hard diffraction which can be used in the future HERA and EIC experiments.