Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-14
Eur.Phys.J.C5:317-326,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
24 pages, LaTeX2e, uses feynmp.sty [included] and amstex.sty
Scientific paper
10.1007/s100520050274
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 pi0, 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.
Kilian Wolfgang
Nachtmann Otto
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