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

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

1998-02-09

arxiv.org/abs/nucl-th/9802025v2

Physics

Nuclear Physics

Nuclear Theory

10 pages, LaTeX, including 5 ps-figures, UGI-98-7

Scientific paper

We analyse the $pp \to p \Lambda K$ 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 $\Lambda p$ final state interaction. We find that the experimental $\Lambda p$ elastic scattering data as well as the predictions from the J\"ulich-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 $\Lambda p$ cm system.

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