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

  • 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.
  • 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. PrzygodaEmail author
  • 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
Open Access
Regular Article - Experimental Physics

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 ppπ 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 Δ(1232), yet with a sizable impact of the N (1440) and non-resonant partial waves.

Keywords

Angular Distribution Invariant Mass Total Cross Section Partial Wave Resonance Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • HADES Collaboration
  • G. Agakishiev
    • 7
  • A. Balanda
    • 3
  • D. Belver
    • 18
  • A. Belyaev
    • 7
  • J. C. Berger-Chen
    • 10
    • 9
  • A. Blanco
    • 2
  • M. Böhmer
    • 10
  • J. L. Boyard
    • 16
  • P. Cabanelas
    • 18
  • S. Chernenko
    • 7
  • A. Dybczak
    • 3
  • E. Epple
    • 10
    • 9
  • L. Fabbietti
    • 10
    • 9
  • O. Fateev
    • 7
  • P. Finocchiaro
    • 1
  • P. Fonte
    • 2
  • J. Friese
    • 10
  • I. Fröhlich
    • 8
  • T. Galatyuk
    • 5
  • J. A. Garzón
    • 18
  • R. Gernhäuser
    • 10
  • K. Göbel
    • 8
  • M. Golubeva
    • 13
  • D.
    • 5
  • F. Guber
    • 13
  • M. Gumberidze
    • 5
  • T. Heinz
    • 4
  • T. Hennino
    • 16
  • R. Holzmann
    • 4
  • A. Ierusalimov
    • 7
  • I. Iori
    • 12
  • A. Ivashkin
    • 13
  • M. Jurkovic
    • 10
  • B. Kämpfer
    • 6
  • T. Karavicheva
    • 13
  • I. Koenig
    • 4
  • W. Koenig
    • 4
  • B. W. Kolb
    • 4
  • G. Kornakov
    • 5
  • R. Kotte
    • 6
  • A. Krása
    • 17
  • F. Krizek
    • 17
  • R. Krücken
    • 10
  • H. Kuc
    • 3
    • 16
  • W. Kühn
    • 11
  • A. Kugler
    • 17
  • A. Kurepin
    • 13
  • V. Ladygin
    • 7
  • R. Lalik
    • 10
    • 9
  • S. Lang
    • 4
  • K. Lapidus
    • 10
    • 9
  • A. Lebedev
    • 14
  • T. Liu
    • 16
  • L. Lopes
    • 2
  • M. Lorenz
    • 8
  • L. Maier
    • 10
  • A. Mangiarotti
    • 2
  • J. Markert
    • 8
  • V. Metag
    • 11
  • B. Michalska
    • 3
  • J. Michel
    • 8
  • C. Müntz
    • 8
  • R. Münzer
    • 10
    • 9
  • L. Naumann
    • 6
  • Y. C. Pachmayer
    • 8
  • M. Palka
    • 3
  • Y. Parpottas
    • 15
  • V. Pechenov
    • 4
  • O. Pechenova
    • 8
  • J. Pietraszko
    • 4
  • W. Przygoda
    • 3
    Email author
  • B. Ramstein
    • 16
  • A. Reshetin
    • 13
  • A. Rustamov
    • 8
  • A. Sadovsky
    • 13
  • P. Salabura
    • 3
  • A. Schmah
    • 1
  • E. Schwab
    • 4
  • J. Siebenson
    • 10
  • Yu. G. Sobolev
    • 17
  • S. Spataro
    • 1
  • B. Spruck
    • 11
  • H. Ströbele
    • 8
  • J. Stroth
    • 8
    • 4
  • C. Sturm
    • 4
  • A. Tarantola
    • 8
  • K. Teilab
    • 8
  • P. Tlusty
    • 17
  • M. Traxler
    • 4
  • R. Trebacz
    • 3
  • H. Tsertos
    • 15
  • T. Vasiliev
    • 7
  • V. Wagner
    • 17
  • M. Weber
    • 10
  • C. Wendisch
    • 6
  • J. Wüstenfeld
    • 6
  • S. Yurevich
    • 4
  • Y. Zanevsky
    • 7
  • A. V. Sarantsev
    • 19
  • V. A. Nikonov
    • 19
  1. 1.Istituto Nazionale di Fisica NucleareLaboratori Nazionali del SudCataniaItaly
  2. 2.LIP-Laboratório de Instrumentação eFısica Experimental de PartıculasCoimbraPortugal
  3. 3.Smoluchowski Institute of PhysicsJagiellonian University of CracowKrakówPoland
  4. 4.GSI Helmholtzzentrum für Schwerionenforschung GmbHDarmstadtGermany
  5. 5.Technische Universität DarmstadtDarmstadtGermany
  6. 6.Institut für StrahlenphysikHelmholtz-Zentrum Dresden-RossendorfDresdenGermany
  7. 7.Joint Institute of Nuclear ResearchDubnaRussia
  8. 8.Institut für KernphysikGoethe-UniversitätFrankfurtGermany
  9. 9.Excellence Cluster“Origin and Structure of the Universe”GarchingGermany
  10. 10.Physik Department E12Technische Universität MünchenGarchingGermany
  11. 11.II.Physikalisches InstitutJustus Liebig Universität GiessenGiessenGermany
  12. 12.Istituto Nazionale di Fisica NucleareSezione di MilanoMilanoItaly
  13. 13.Institute for Nuclear ResearchRussian Academy of ScienceMoscowRussia
  14. 14.Institute of Theoretical and Experimental PhysicsMoscowRussia
  15. 15.Department of PhysicsUniversity of CyprusNicosiaCyprus
  16. 16.Institut de Physique Nucléaire, CNRS-IN2P3Univ. Paris-Sud, Université Paris-SaclayOrsay CedexFrance
  17. 17.Nuclear Physics InstituteAcademy of Sciences of Czech RepublicRezCzech Republic
  18. 18.LabCAF. F. FısicaUniv. de Santiago de CompostelaSantiago de CompostelaSpain
  19. 19.NRC “Kurchatov Institute”PNPIGatchinaRussia

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