Meson production studied with the GEM detector

Measurements of proton induced meson production on hydrogen and deuterium targets using the GEM-detector at COSY are described. Preliminary estimates of the total cross section are presented. Results of the pp → dπ+ and pp → ppπ0 cross section are in agreement with previous findings. The total cross section of pd →3Heπ0 is consistent with results from pion absorption but a surprisingly large value was found at a beam (3025) momentum of 750 MeV/c. The reaction pd →3Heη was measured at two beam energies and was identified by missing mass technique.