https://doi.org/10.1140/epja/i2003-10155-6
Total and differential cross-sections for the 
reaction near threshold
1
Institut für Kernphysik, Westfälische Wilhelms-Universität, D-48149, Münster, Germany
2
Institute of Nuclear Physics, PL-31-342, Cracow, Poland
3
Institute of Physics, Jagellonian University, PL-30-059, Cracow, Poland
4
IKP and ZEL, Forschungszentrum Jülich, D-52425, Jülich, Germany
5
Institute of Physics, University of Silesia, PL-40-007, Katowice, Poland
* e-mail: khoukaz@uni-muenster.de
The 
-meson production in the reaction has been studied at excess energies of Q = 26.5, 32.5 and 46.6 MeV using the internal beam facility COSY-11 at the cooler synchrotron COSY. The total cross-sections as well as one angular distribution for the highest Q-value are presented. The excitation function of the near-threshold data can be described by a pure s-wave phase space distribution with the inclusion of the proton-proton final-state interaction and Coulomb effects. The obtained angular distribution of the -mesons is also consistent with pure s-wave production.
© Società Italiana di Fisica and Springer-Verlag, 2004
