Eur. Phys. J. A (2006) 27: 269-285
https://doi.org/10.1140/epja/i2005-10268-x

Nuclear Structure and Reactions

Resonances and final-state interactions in the reaction pp → pK⁺Λ

¹ Helmholtz-Institut für Strahlen- und Kernphysik (Theorie), Universität Bonn, Nußallee 14-16, D-53115, Bonn, Germany
² Institut für Kernphysik (Theorie), Forschungszentrum Jülich, D-52425, Jülich, Germany

^* e-mail: j.haidenbauer@fz-juelich.de

Received: 19 December 2005
Accepted: 8 March 2006
Published online: 4 April 2006

Abstract

A study of the strangeness production reaction pp → pK ⁺Λ for excess energies of ε≤150MeV, accessible at high-luminosity accelerator facilities like COSY, is presented. Methods to analyze the Dalitz plot distribution and angular spectra in the Jackson and helicity frames are worked out and suitable observables for extracting information on low-lying resonances that couple to the KΛ system and for determining the Λp effective-range parameters from the final-state interaction are identified and discussed. Furthermore, the chances for identifying the reaction mechanism of strangeness production are investigated.