DOI 10.1007/s100520000500
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
Abstract
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