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Final State Interaction Effects in the $e^+e^-\to N\bar{N}$ Process near Threshold

V. F. Dmitriev·A. I. Milstein
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Abstract

We use the Paris nucleon-antinucleon optical potential for explanation of experimental data in the process $e^+e^- \to p\bar p$ near threshold. It is shown that the cross section and the electromagnetic form factors are very sensitive to the parameters of the potential. It turns out that final-state interaction due to slightly modified absorptive part of the potential allows us to reproduce available experimental data. We also demonstrated that the cross section in $n\bar{n}$ channel is larger than that in $p\bar{p}$ one, and their ratio is almost energy independent up to 2.2 GeV.

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V. F. Dmitriev, A. I. Milstein. 2007-03-29. Final State Interaction Effects in the $e^+e^-\to N\bar{N}$ Process near Threshold. https://doi.org/10.1016/j.nuclphysbps.2006.09.063

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