Exclusive production of ground and excited light vector mesons with a holographic wave function model

The exclusive photo- and electroproduction of light vector mesons like $$$ \rho, \omega, $$$ and $$$ \phi $$$ is studied in $$$ \gamma p $$$ collisions within the color dipole formalism with vector meson wave functions obtained using the AdS/QCD holographic approach. This setup provides a good description of the existing data for the ground vector mesons $$$ \rho (1S),\kern0.3em \omega (1S),\kern0.3em \mathrm{and}\kern0.3em \phi (1S) $$$ and permits us to make predictions for the corresponding excited states. The results show significant theoretical uncertainties related to modeling the partial dipole amplitude, which can be constrained with upcoming measurements in future hadron colliders.