Abstract
A model calculation for pion production in nucleon-nucleon collisions is presented. Direct production, pion re-scattering and contributions from pair diagrams are taken into account. The amplitudes for the elementary processes are based on well established microscopic models of nucleon–nucleon and pion-nucleon scattering. The comparison with experiments focuses on recently measured polarization observables. Furthermore, results of a study of the reaction NN - NNr1 are presented, performed in the same spirit and the same framework as pion production. Reasonable agreement with available near-threshold cross section data for the reactionspp→ppη pn → pnη,and pn → dη is found.KeywordsTotal Cross SectionPion ProductionHeavy MesonMeson ExchangeDistorted Wave Born ApproximationThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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