EPJ Web of Conferences (Jan 2019)

Partial wave analysis of HADES data for two-pion production in pion-nucleon reactions

  • Ciepał I.,
  • Przygoda W.,
  • Sarantsev A. V.

DOI
https://doi.org/10.1051/epjconf/201919902001
Journal volume & issue
Vol. 199
p. 02001

Abstract

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Pion beams are perfect tools to probe resonance excitations at a fixed energy, thus properties of baryonic resonances and their coupling channels can be studied. The HADES Collaboration performed a systematic scan around the second resonance region at four different pion beam momenta 0.656, 0.69, 0.748 and 0.8 GeV/c in π− p reaction. The role of the N(1520) resonance in conjunction with the intermediate ρ-meson production has been studied in the framework of a partial wave analysis. Preliminary results on exclusive channels with one pion (π− p) and two pions (nπ+π− and pπ−π0) in the final state are presented.