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 \(\pi^0,\eta,\eta'\), and \(\eta_c\) production. Results are given from both a full calculation and one using the equivalent photon approximation. The accuracy of the latter is discussed.

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