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Final State Interactions in the Near-Threshold Production of Kaons from Proton-Proton Collisions

A. Sibirtsev·W. Cassing
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Abstract

We analyse the $pp \to p ΛK$ cross section recently measured at COSY arguing that the enhancement of the production cross section at energies close to the reaction threshold should be due to the $Λp$ final state interaction. We find that the experimental $Λp$ elastic scattering data as well as the predictions from the Jülich-Bonn model are in reasonable agreement with the new results on $K^+$-meson production. We propose to study directly the final state interaction by measurements of the cross section as a function of the hyperon momentum in the $Λp$ cm system.

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A. Sibirtsev, W. Cassing. 1998-02-12. Final State Interactions in the Near-Threshold Production of Kaons from Proton-Proton Collisions. https://arxiv.org/abs/nucl-th/9802025

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