Regular Article - Theoretical Physics
Phenomenological model for the N K reaction
Institute of Nuclear Physics, Moscow State University, 119991, Moscow, Russia
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Accepted: 29 August 2011
Published online: 22 September 2011
A phenomenological model for the N K reaction is suggested. The model includes s and u channel exchanges by , , (1385) , and (1520) and s channel exchanges by above-threshold hyperonic resonances. The explicit expression for the propagator for a particle with spin 7/2 is presented. High-mass and high-spin resonances play a significant role in the process. We deal with the whole set of existing experimental data on the cross-sections and polarizations in the energy range from the threshold to 2.8GeV in the center-of-mass system and reach a good agreement with experiments. Applications of the model to other elementary reactions of production and to hypernuclear spectroscopy are briefly discussed.
© SIF, Springer-Verlag Berlin Heidelberg, 2011