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

  • Collaboration HADES Collaboration
  • , G. Agakishiev
  • , A. Balanda
  • , D. Belver
  • , A. Belyaev
  • , J. C. Berger-Chen
  • , A. Blanco
  • , M. Böhmer
  • , J. L. Boyard
  • , P. Cabanelas
  • , S. Chernenko
  • , A. Dybczak
  • , E. Epple
  • , L. Fabbietti
  • , O. Fateev
  • , P. Finocchiaro
  • , P. Fonte
  • , J. Friese
  • , I. Fröhlich
  • , T. Galatyuk
  • J. A. Garzón, R. Gernhäuser, K. Göbel, M. Golubeva, D. González-Díaz, F. Guber, M. Gumberidze, T. Heinz, T. Hennino, R. Holzmann, A. Ierusalimov, I. Iori, A. Ivashkin, M. Jurkovic, B. Kämpfer, T. Karavicheva, I. Koenig, W. Koenig, B. W. Kolb, G. Kornakov, R. Kotte, A. Krása, F. Krizek, R. Krücken, H. Kuc, W. Kühn, A. Kugler, A. Kurepin, V. Ladygin, R. Lalik, S. Lang, K. Lapidus, A. Lebedev, T. Liu, L. Lopes, M. Lorenz, L. Maier, A. Mangiarotti, J. Markert, V. Metag, B. Michalska, J. Michel, C. Müntz, R. Münzer, L. Naumann, Y. C. Pachmayer, M. Palka, Y. Parpottas, V. Pechenov, O. Pechenova, J. Pietraszko, W. Przygoda, B. Ramstein, A. Reshetin, A. Rustamov, A. Sadovsky, P. Salabura, A. Schmah, E. Schwab, J. Siebenson, Yu G. Sobolev, S. Spataro, B. Spruck, H. Ströbele, J. Stroth, C. Sturm, A. Tarantola, K. Teilab, P. Tlusty, M. Traxler, R. Trebacz, H. Tsertos, T. Vasiliev, V. Wagner, M. Weber, C. Wendisch, J. Wüstenfeld, S. Yurevich, Y. Zanevsky, A. V. Sarantsev, V. A. Nikonov
  • Joint Inst. for Nuclear Research
  • Jagiellonian University
  • Universidad de Santiago de Compostela
  • Cluster of Excellence E-conversion
  • Technical University of Munich
  • LIP-Laboratorio de Instrumentacao e Fisica Experimental de Particulas
  • University Paris-Sud
  • Laboratori Nazionali Del Sud
  • Johann Wolfgang Goethe University
  • Technische Universität Darmstadt
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • GSI Helmholtz Center
  • INFN Sezione di Milano
  • HelmholtzZentrum Dresden-Rossendorf
  • Academy of Sciences of the Czech Republic
  • Justus-Liebig-Universität Gießen
  • ITEP
  • University of Cyprus
  • Petersburg Nuclear Phys. Inst.

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25GeV is investigated. The multi-differential data were measured by the HADES Collaboration. Exclusive channels with one pion in the final state (npπ+ and ppπ0 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 Δ(1232), yet with a sizable impact of the N (1440) and non-resonant partial waves.

Original languageEnglish
Article number137
Pages (from-to)1-12
Number of pages12
JournalEuropean Physical Journal A
Volume51
Issue number10
DOIs
StatePublished - 1 Oct 2015

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