Electroproduction of heavy vector mesons using holographic QCD: from near threshold to high energy regimes

Abstract

We develop a non-perturbative analysis of the electro-production of heavy vector mesons ($\varphi$, $J/\Psi$) from threshold to high energy. We use the holographic construction with bulk confinement enforced through a soft wall. Using Witten diagrams, we evaluate the pertinent cross sections for heavy vector mesons ($\varphi$, $J/\Psi$) production and study their dependence on both the incoming virtual photon polarization as well as the outgoing polarization of the heavy meson. Our results for $J/\Psi$ electro-production compares well with the available HERA data at low and intermediate $Q^2$, and for a wide range of momentum transfer. We also predict the quasi-real electro-production of $J/\Psi$ near threshold.

30 pages (with two columns), 13 figures, extension of our work on photo-production arXiv:1910.04707 with overlapping appendix

References in corpus (17)

• The Pomeron and Gauge/String Duality
• Nucleon electromagnetic and gravitational form factors from holography
• Precision holography for non-conformal branes
• Structure of Vector Mesons in Holographic Model with Linear Confinement
• Gravitational Form Factors of Vector Mesons in an AdS/QCD Model
• Exclusive vector meson production at HERA from QCD with saturation
• Spectroscopy of fermionic operators in AdS/CFT
• Holographic glueball structure
• Towards the Gravity Dual of Quarkonium in the Strongly Coupled QCD Plasma
• Deep inelastic scattering from gauge string duality in the soft wall model
• Polarized DIS in N=4 SYM: Where is spin at strong coupling?
• A QCD analysis of near-threshold quarkonium leptoproduction at large photon virtualities
• ${\rm Y}$ photo-production on the proton at the Electron-Ion Collider
• Strong Coupling Expansion for the Conformal Pomeron/Odderon Trajectories
• Sub-threshold $J/\psi$ and ${\rm Y}$ Production in $\gamma A$ Collisions
• Nonperturbative and perturbative aspects of photo- and electroproduction of vector mesons
• Nonperturbative and Perturbative Aspects of Photo- and Electroproduction of Vector Mesons