Theoretical understanding of pion production in nucleon-nucleon collisions - a status report

Details Theoretical understanding of pion production in nucleon-nucleon collisions - a status report Theoretical understanding of pion production in nucleon-nucleon collisions - a status report

2002-07-05

arxiv.org/abs/nucl-th/0207015v1

Physics

Nuclear Physics

Nuclear Theory

3 pages, 1 figure, Presented at the 7th International Workshop on Meson Production, Properties and Interactions, MESON2002, Kr

Scientific paper

A status report is given for the current theoretical understanding of pion production close to threshold. In the first part of the talk predictions of a meson exchange model are compared to recent polarized data for the reactions $pp \to pp\pi^0$ as well as $pp\to pn\pi^+$ revealing, that the former reaction is badly described whereas the predictions for the latter turn out to be consistent with the data. Recent progress in the application of chiral perturbation theory allows to understand this difference.

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