Nonlinearity of vacuum reggeons and exclusive diffractive production of vector mesons at HERA

Abstract

The processes of exclusive photo- and electroproduction of vector mesons ${\rho }^0$(770), $\varphi$(1020) and $J/\psi$(3096) at collision energies $30GeV<W<300GeV$ and transferred momenta squared $0<-t<2Ge{V}^2$ are considered in the framework of a phenomenological Regge-eikonal scheme with nonlinear Regge trajectories in which their QCD asymptotic behavior is taken into account explicitly. By comparison of available experimental data from ZEUS and H1 Collaborations with the model predictions it is demonstrated that corresponding angular distributions and integrated cross-sections in the above-mentioned kinematical range can be quantitatively described with use of two $C$-even vacuum Regge trajectories. These are the "soft" pomeron dominating the high energy reactions without a hard scale and the "hard" pomeron giving an essential contribution to photo- and electroproduction of heavy vector mesons and deeply virtual electroproduction of light vector mesons.

arXiv comment25 pages, 12 figures

References in corpus (29)

• Exclusive diffractive processes at HERA within the dipole picture
• Analytic Model for the QCD Running Coupling with Universal ${\bar{\alpha }}_s(0)$ Value
• Exclusive photoproduction of J/psi mesons at HERA
• Elastic J/Psi Production at HERA
• Small x: Two Pomerons!
• Exclusive electroproduction of J/psi mesons at HERA
• Vector meson electroproduction at small Bjorken-x and generalized parton distributions
• Determination of the QCD Coupling ${\alpha }_s$
• Exclusive rho^0 production in deep inelastic scattering at HERA
• Measurement of Elastic $\varphi$ Photoproduction at HERA
• Exclusive electroproduction of $\varphi$ mesons at HERA
• Exclusive photoproduction of $J/\psi$ in proton-proton and proton-antiproton scattering
• Exclusive vector meson production at HERA from QCD with saturation
• Elastic and Proton-Dissociative rho0 Photoproduction at HERA
• Elastic Photoproduction of ${\rho }^0$ Mesons at HERA
• Measurement of diffractive photoproduction of vector mesons at large momentum transfer at HERA
• Measurement of Elastic ${\rho }^0$ Photoproduction at HERA
• Regge Asymptotics of Scattering with Flavour Exchange in QCD
• Exclusive Vector Photoproduction: Confirmation of Regge Theory
• Study of Elastic rho0 photoproduction at HERA using the ZEUS Leading Proton Spectrometer
• Photoproduction of vector mesons in the Soft Dipole Pomeron model
• Production of vector mesons by real and virtual photons at high energies
• The Pomeron In Exclusive Vector Meson Production
• Nonlinearity of Regge trajectories in the scattering region
• Nonperturbative and Perturbative Aspects of Photo- and Electroproduction of Vector Mesons
• Nonperturbative and perturbative aspects of photo- and electroproduction of vector mesons
• Exclusive electroproduction and the quark structure of the nucleon
• Unitarity constraints and role of geometrical effects in deep-inelastic scattering and vector-meson electroproduction
• J/Psi Photoproduction in a Dual Model

Cited by in corpus (1)

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