The Transverse Cross Section in Exclusive Vector-Meson Production
Abstract
Description
We show that the ratio of the transverse to the longitudinal cross sections observed at HERA cannot be reproduced by models which assume that the meson can be described by an on-shell q qbar pair. We explain how a simple model allowing off-shell (anti)quarks can naturally lead to agreement with experiment.
7 pages, 6 figures, LaTeX requiring sprocl.sty, presented by J.R.C. at the Fourth Workshop on Quantum Chromodynamics, 1-6 June 1998, The American University of Paris
7 pages, 6 figures, LaTeX requiring sprocl.sty, presented by J.R.C. at the Fourth Workshop on Quantum Chromodynamics, 1-6 June 1998, The American University of Paris