Vector meson production at low x from gauge/gravity duality

Abstract

We use gauge/gravity duality to study vector meson (J/Ψ, ρ_0, Ω, Φ) production in electron-proton scattering, in the limit of high center of mass energy at fixed momentum transfer, corresponding to the limit of low Bjorken x, where the process is dominated by pomeron exchange. Our approach considers the pomeron at strong coupling, described by the graviton Regge trajectory in AdS space with a hard-wall to mimic confinement effects. Both the proton and vector mesons are described by simple holographic wave functions in AdS. This model agrees with HERA H1 data with a χ^2 per degree of freedom below one on total cross-sections, and below two on differential cross-sections, confirming the success of previous studies that model low x DIS and DVCS using gauge/gravity duality.

20 pages, 6 figures; reference added

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• Nonperturbative and perturbative aspects of photo- and electroproduction of vector mesons

Cited by in corpus (29)

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• Nucleon mass radii and distribution: Holographic QCD, Lattice QCD and GlueX data
• Gravitational collapse and thermalization in the hard wall model
• New Regimes of Stringy (Holographic) Pomeron and High Multiplicity pp and pA Collisions
• Gluon matter distribution in the proton and pion from extended holographic light-front QCD
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• Deep inelastic scattering from polarized spin-$1/2$ hadrons at low $x$ from string theory
• Electroproduction of heavy vector mesons using holographic QCD: from near threshold to high energy regimes
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• Form factors and transverse charge and magnetization densities in the hard-wall AdS/QCD model
• Inclusive Production Through AdS/CFT
• Polarized gluon distribution in the proton from holographic light-front QCD
• Minkowski Conformal Blocks and the Regge Limit for SYK-like Models
• Diffractive Vector Photoproduction using Holographic QCD
• Structure functions in deep inelastic scattering from gauge/string duality beyond single-hadron final states
• Non-minimal coupling contribution to DIS at low $x$ in Holographic QCD
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• 1/N corrections to $F_1$ and $F_2$ structure functions of vector mesons from holography
• Spin-1/2 fermionic operators of $\mathcal{N}=4$ SYM theory and DIS from type IIB supergravity
• Higher-twist fermionic operators and DIS structure functions from the AdS/CFT duality
• Pomeron Physics at the LHC
• Deeply Virtual Compton Scattering in Improved Holographic QCD
• Anomalous and linear holographic hard wall models for light unflavored mesons