Phenomenology of Distribution Amplitudes for the rho meson

Abstract

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.

Comments: 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 Proceedings