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A stack of annular detectors made of high-purity germanium was used to measure simultaneously pd-> 3 Hπ + and pd-> 3 Heπ 0 differential cross sections at beam momenta of 750<space>MeV/c, 800<space>MeV/c, and 850<space>MeV/c over a large angular range. The extracted total cross sections for the pd-> 3 Heπ 0 reactions bridge...
Total and differential cross sections for the reactions p + d → 3He + m0 with m=π, η and p + d → 3H+π+ were measured with the GEM detector at COSY for beam momenta between threshold and the maximum of the corresponding baryon resonance. For both reactions a strong forward-backward asymmetry was found. The data were compared with model calculations. The aspect of isospin symmetry breaking is studied.
We have measured the reaction pd-> 3 Heη at a proton beam energy of 980 MeV, which is 88.5 MeV above threshold using the new `germanium wall' detector system. A missing-mass resolution of the detector system of 2.6% was achieved. The angular distribution of the meson is forward peaked. We found a total cross section of (573 +/- 83 (stat.) +/- 69 (syst.)) nb. The excitation function for...
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