Phenomenology of Distribution Amplitudes for the rho meson

We report on a successful extraction of the twist-2 and twist-3 Distribution Amplitudes (DAs) of the rho meson using the HERA data on diffractive rho photoproduction. We extract these DAs using several Colour Glass Condensate (CGC) inspired and a Regge inspired dipole models. All our extracted DAs are consistent with Sum Rules and lattice predictions.Comment: 4 pages, 2 figures, presented at the 19th International Workshop on Deep Inelastic Scattering and Related Subjects (DIS 2011), Jefferson Lab, Newport News, April 2011. To appear in the Proceeding

An AdS/QCD holographic wavefunction for the rho meson

We use an AdS/QCD holographic wavefunction to generate predictions for the rate of diffractive {\rho}-meson electroproduction that are in reasonable agreement with data collected at the HERA electron-proton collider.Comment: 4 pages, 3 figures, to appear in the Proceedings of 20th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2012), Bonn, Germany, 26-30 March 201

An AdS/QCD holographic wavefunction for the rho meson and diffractive rho meson electroproduction

We show that AdS/QCD generates predictions for the rate of diffractive rho meson electroproduction that are in agreement with data collected at the HERA electron-proton collider.Comment: 9 pages, 4 figures. Figure 3 added to illustrate that the AdS/QCD prediction is impressive. Accepted for publication in Physical Review Letter

Dynamical spin effects in the pion

We take into account dynamical spin effects in the holographic light-front pion wavefunction in order to predict the pion radius, decay constant, the pion electromagnetic and photon-to-pion transition form factors. We report a striking improvement in the description of all data.Comment: 4 pages, 2 figures. Proceedings Contribution for the 9th International Workshop on Diffraction in High Energy Physics (Diffraction 2016), Santa Tecla di Acireale, Catania, Italy, September 2-8, 201

Constraining the rho meson wavefunction

Diffractive rho meson production has been identified as one of the important processes where saturation can be probed at a future Electron-Ion Collider (EIC). A source of uncertainty in making predictions for this process lies within the assumed form of the meson light-cone wavefunction. We report here the results of reference [1] where a Regge-inspired dipole model was used to extract this wavefunction as well as the corresponding leading twist-2 Distribution Amplitude from the current accurate HERA data. In addition, we shall check the robustness of the conclusions in reference [1] by using alternative Colour Glass Condensate dipole models.Comment: 9 pages, 5 figures. Proceedings Contribution for the workshop "Gluons and the quark sea at high energies: distributions, polarization, tomography", Institute for Nuclear Theory, Seattle, U.S. September 13 to November 19, 201