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Theoretical understanding of pion production in nucleon-nucleon collisions - a status report | | C. Hanhart
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5 Jul 2002 | | Subject: | nucl-th | | Abstract: | 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 $pp o pppi^0$ as well as $pp o pnpi^+$ 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. | | Source: | arXiv, nucl-th/0207015 | | Services: | Forum | Review | PDF | Favorites | |
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