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تسجيل مستخدم جديدDielectron production in pion-nucleon reactions at intermediate energies
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Dielectron production in the $pi N$ interaction at not large energies is studied. The dominant contribution of the $Delta$-isobar creation in the intermediate state at incident pion momenta of about 0.3-0.4 GeV$/$c is shown. The experimental distributions over the angle and effective mass $M_{e^+e_-}$ of the $e^+e^-$ pair are described satisfactorily. This stimulated us to present theoretical predictions for the $M_{e^+e_-}$ distribution in the process $pi^- prightarrow ne^+e^-$ at different incident momenta, which could be verified, for example, by the HADES experiments.
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