Measurement of the quasi free np → npπ+π− and np → ppπ−π0 reactions at 1.25 GeV with HADES

Alexei Kurilkin, Oliver Arnold, Ermias T. Atomssa, Claudia Behnke, Alexander Belyaev, Jia Chii Berger-Chen, Jacek Biernat, Alberto Blanco, Christoph Blume, Michael Böhmer, Paula Bordalo, Sergey Chernenko, Christina Deveaux, Adrian Dybczak, Eliane Epple, Laura Fabbietti, Oleg Fateev, Paulo Fonte, Celso Franco, Jürgen Friese, Ingo Fröhlich, Tetyana Galatyuk, Juan A. Garzón, Katharina Gill, Marina Golubeva, Diego González-Díaz, Fedor Guber, Malgorzata Gumberidze, Szymon Harabasz, Thierry Hennino, Claudia Höhne, Romain Holzmann, Alexander Ierusalimov, Alexander Ivashkin, Martin Jurkovic, Burkhard Kämpfer, Tatiana Karavicheva, Behruz Kardan, Ilse Koenig, Wolfgang Koenig, Burkhard W. Kolb, Grzegorz Korcyl, Georgy Kornakov, Roland Kotte, Antonin Krása, Erik Krebs, Filip Krizek, Hubert Kuc, Andrej Kugler, Tobias Kunz, Alexei Kurepin, Pavel Kurilkin, Vladimir Ladygin, Rafal Lalik, Simon Lang, Kirill Lapidus, Alexander Lebedev, Luís Lopes, Manuel Lorenz, Ludwig Maier, A. Mangiarotti, Jochen Markert, Volker Metag, Jan Michel, Christian Müntz, Robert Münzer, Lothar Naumann, Marek Palka, Vladimir Pechenov, Olga Pechenova, Vlasios Petousis, Jerzy Pietraszko, Witold Przygoda, Béatrice Ramstein, Laura Rehnisch, Andrey Reshetin, Adrian Rost, Anar Rustamov, Alexander Sadovsky, Piotr Salabura, Timo Scheib, Korbinian Schmidt-Sommerfeld, Heidi Schuldes, Patrick Sellheim, Johannes Siebenson, Luis Silva, Yuri Sobolev, Stefano Spataro, Herbert Ströbele, Joachim Stroth, Pawel Strzempek, Christian Sturm, Ondřej Svoboda, Attilio Tarantola, Khaled Teilab, Pavel Tlusty, Michael Traxler, Haralabos Tsertos, Taras Vasiliev, Vladimir Wagner, Christian Wendisch, Joana Wirth, Jörn Wüstenfeld, Sergey Yurevich, Yuri Zanevsky

We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The sp
We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on π+π− and π−π0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (∆∆, N(1440), N(1520), ∆(1600)). The invariant mass and angular distributions from the np → npπ+π −and np → ppπ−π0 reactions are compared with different theoretical model predictions.
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Author:Alexei Kurilkin, Oliver Arnold, Ermias T. Atomssa, Claudia Behnke, Alexander Belyaev, Jia Chii Berger-Chen, Jacek Biernat, Alberto Blanco, Christoph Blume, Michael Böhmer, Paula Bordalo, Sergey Chernenko, Christina Deveaux, Adrian Dybczak, Eliane Epple, Laura Fabbietti, Oleg Fateev, Paulo Fonte, Celso Franco, Jürgen Friese, Ingo Fröhlich, Tetyana Galatyuk, Juan A. Garzón, Katharina Gill, Marina Golubeva, Diego González-Díaz, Fedor Guber, Malgorzata Gumberidze, Szymon Harabasz, Thierry Hennino, Claudia Höhne, Romain Holzmann, Alexander Ierusalimov, Alexander Ivashkin, Martin Jurkovic, Burkhard Kämpfer, Tatiana Karavicheva, Behruz Kardan, Ilse Koenig, Wolfgang Koenig, Burkhard W. Kolb, Grzegorz Korcyl, Georgy Kornakov, Roland Kotte, Antonin Krása, Erik Krebs, Filip Krizek, Hubert Kuc, Andrej Kugler, Tobias Kunz, Alexei Kurepin, Pavel Kurilkin, Vladimir Ladygin, Rafal Lalik, Simon Lang, Kirill Lapidus, Alexander Lebedev, Luís Lopes, Manuel Lorenz, Ludwig Maier, A. Mangiarotti, Jochen Markert, Volker Metag, Jan Michel, Christian Müntz, Robert Münzer, Lothar Naumann, Marek Palka, Vladimir Pechenov, Olga Pechenova, Vlasios Petousis, Jerzy Pietraszko, Witold Przygoda, Béatrice Ramstein, Laura Rehnisch, Andrey Reshetin, Adrian Rost, Anar Rustamov, Alexander Sadovsky, Piotr Salabura, Timo Scheib, Korbinian Schmidt-Sommerfeld, Heidi Schuldes, Patrick Sellheim, Johannes Siebenson, Luis Silva, Yuri Sobolev, Stefano Spataro, Herbert Ströbele, Joachim Stroth, Pawel Strzempek, Christian Sturm, Ondřej Svoboda, Attilio Tarantola, Khaled Teilab, Pavel Tlusty, Michael Traxler, Haralabos Tsertos, Taras Vasiliev, Vladimir Wagner, Christian Wendisch, Joana Wirth, Jörn Wüstenfeld, Sergey Yurevich, Yuri Zanevsky
URN:urn:nbn:de:hebis:30:3-365819
DOI:http://dx.doi.org/10.1051/epjconf/20148102009
ISSN:2100-014X
Parent Title (English):The European physical journal. Web of Conferences: proceedings
Publisher:EDP Sciences
Place of publication:Les Ulis
Document Type:Conference Proceeding
Language:English
Date of Publication (online):2014/11/26
Date of first Publication:2014/11/26
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:MESON 2014 – 13th International Workshop on Production, Properties and Interaction of Mesons
Release Date:2015/03/02
Volume:81
Issue:02009
Pagenumber:4
First Page:1
Last Page:4
Note:
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
HeBIS PPN:38509292X
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0

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