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The differential cross section dσ/dΩ and analysing power Ay of the p→p→{pp}sπ0 reaction have been measured at COSY-ANKE at 353 MeV. The final proton pair was detected at very low excitation energy, leading to an S-wave diproton, denoted here as {pp}s. The angular dependence of both dσ/dΩ and Ay can be described in terms of s- and d-wave pion production. By using phase information from elastic pp scattering,...
In order to test chiral perturbation theory and establish links between p-wave pion production in nucleon–nucleon collisions and low energy three-nucleon scattering, an extensive programme of experiments on pion production is currently underway at COSY-ANKE. The final proton pair is measured at very low excitation energy, leading to an S-wave diproton, denoted here as {pp}s. By using a deuterium target...
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