Extracting the Distribution Amplitudes of the rho meson from the Color Glass Condensate

Abstract

We extract the leading twist-2 and subleading twist-3 Distribution Amplitudes (DAs) of the rho meson using the HERA data on diffractive rho photoproduction. We do so using several Colour Glass Condensate (CGC) inspired and a Regge inspired dipole models. We find that our extracted twist-2 DA is not much model dependent and is consistent with QCD Sum Rules and lattice predictions. The extracted twist-3 DA is more model dependent but is still consistent with the Sum Rules prediction.

21 pages, 10 figures, 3 tables. Section 6 revised, figures 8 and 9 and table 3 updated. Conclusions essentially unchanged

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Cited by in corpus (21)

• Impact-parameter dependent Color Glass Condensate dipole model and new combined HERA data
• An AdS/QCD holographic wavefunction for the rho meson and diffractive rho meson electroproduction
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• Diffractive $\rho$ and $\varphi$ production at HERA using an AdS/QCD holographic light-front meson wavefunction
• Saturation effects in exclusive rhoT, rhoL meson electroproduction
• Self-consistent covariant description of vector meson decay constants and chirality-even quark-antiquark distribution amplitudes up to twist-3 in the light-front quark model
• Predicting $B->\rho \gamma$ and $B_s->\rho \gamma$ using holographic AdS/QCD Distribution Amplitudes for the $\rho$ meson
• Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction
• Light vector meson photoproduction in hadron-hadron and nucleus-nucleus collisions at the energies available at the CERN Large Hadron Collider
• Predicting the isospin asymmetry in $B->K\ast \gamma$ using holographic AdS/QCD Distribution Amplitudes for the K*
• Spin effects in the pion holographic light-front wavefunction
• Predicting the $B->\rho$ form factors using AdS/QCD Distribution Amplitudes for the $\rho$ meson
• The dipole representation of vector meson electroproduction beyond leading twist
• Electroproduction of heavy vector mesons using holographic QCD: from near threshold to high energy regimes
• Generalized parton distributions in the soft-wall model of AdS/QCD
• Transverse densities and generalized parton distributions of $\rho$ meson in light front quark model
• Analysis of the semileptonic $B\to K_1{\ell }^{+}{\ell }^{-}$transitions and non-leptonic $B\to K_1\gamma$ decay in the AdS/QCD correspondence
• Form Factors and Differential Branching Ratio of $B\to K{\mu }^{+}{\mu }^{-}$ in AdS/QCD
• Exclusive diffractive J/psi and Psi(2S) production in dipole model using a holographic AdS/QCD light front wavefunction with longitudinal confinement
• Exclusive photo- and electroproduction of excited light vector mesons via holographic model
• Diffractive vector meson production at HERA using holographic AdS/QCD wavefunctions