High-t Meson Photo- and Electroproduction: a Window on the Partonic Structure of Hadrons

Abstract

A consistent description of exclusive photoproduction of mesons at high momentum transfer t relies on a few effective degrees of freedom which can be checked against Lattice calculation or more effective models of QCD.

Comments: 7 pages; 5 Figures; Invited talk at the Workshop on "Exclusive Processes at High Momentum Transfer", Newport-News, May 15-18, 2002; to appear in the proceedings (World-Scientific) edited by A. Radyushkin and P. Stoler