https://doi.org/10.1140/epja/i2011-11109-1
Regular Article - Theoretical Physics
Phenomenological model for the
N
K
reaction
Institute of Nuclear Physics, Moscow State University, 119991, Moscow, Russia
* e-mail: sharov@depni.sinp.msu.ru
Received:
28
April
2011
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