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
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.