DOI 10.1007/s100529800844
Single pseudoscalar meson production
in diffractive ep scattering
W. Kilian - O. Nachtmann
Institut für Theoretische Physik, Universität Heidelberg,
Philosophenweg 16, D-69120 Heidelberg, Germany
(e-mail: W.Kilian@thphys.uni-heidelberg.de,
O.Nachtmann@thphys.uni-heidelberg.de)
Received: 18 December 1997 / Published online: 10 March 1998
Abstract
Exclusive pseudoscalar meson production in ep scattering at high
energies is a direct probe for a possible ``odderon'' exchange in soft
hadronic processes. Using a simple phenomenological ansatz for the
odderon, we demonstrate how it can be separated from the contribution
due to photon-photon fusion, and the relevant parameters be measured.
Total cross sections and differential distributions are presented for
, and
production. Results are given from
both a full calculation and one using the equivalent photon
approximation. The accuracy of the latter is discussed.
Copyright Springer-Verlag