Large momentum transfer electroproduction of mesons
H.W. Huang - P. Kroll
Fachbereich Physik, Universität Wuppertal, 42097 Wuppertal, Germany
Received: 9 June 2000 / Revised version: 27 July 2000 /
Published online: 25 September 2000 - © Springer-Verlag 2000
Assuming the proton's light-cone wave function to be dominated by small parton virtualities and small intrinsic transverse momenta, we show that the electroproduction amplitudes at large momentum transfer factorize into parton-level subprocess amplitudes and form factors representing 1/x-moments of skewed parton distributions. On the basis of a wave function overlap model for the form factors we present detailed predictions for the electroproduction cross sections. We also comment on large momentum transfer photoproduction.
Copyright Società Italiana di Fisica, Springer-Verlag 2000