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25 April 2024

» arxiv » 1703.8398

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Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV
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 ;
Date:	24 Mar 2017
Abstract:	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.
Source:	arXiv, 1703.8398
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