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Observing the Odderon: Tensor Meson Photoproduction

E. R. Berger·A. Donnachie·H. G. Dosch·O. Nachtmann
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Abstract

We calculate high-energy photoproduction of the tensor meson $f_2(1270)$ by odderon and photon exchange in the reaction $γ+ {\rm{p}} \to f_2(1270) + {\rm{X}}$, where X is either the nucleon or the sum of the N(1520) and N(1535) baryon resonances. Odderon exchange dominates except at very small transverse momentum, and we find a cross section of about 20 nb at a centre-of-mass energy of 20 GeV. This result is compared with what is currently known experimentally about $f_2$ photoproduction. We conclude that odderon exchange is not ruled out by present data. On the contrary, an odderon-induced cross section of the above magnitude may help to explain a puzzling result observed by the E687 experiment.

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E. R. Berger, A. Donnachie, H. G. Dosch, O. Nachtmann. 2000-01-26. Observing the Odderon: Tensor Meson Photoproduction. https://doi.org/10.1007/s100520000377

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