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Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV

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 نشر من قبل Witold Przygoda
 تاريخ النشر 2017
  مجال البحث
والبحث باللغة English
 تأليف G. Agakishiev




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Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES collaboration. Exclusive channels with one pion in the final state ($nppi^{+}$ and $pppi^{0}$) were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. The results of the PWA confirm the dominant contribution of the $Delta$(1232), yet with a sizable impact of the $N$(1440) and non-resonant partial waves.



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