One and two-pion production in pp reactions with the high acceptance Di-electron spectrometer at GSI

B. Ramstein, G. Agakishiev, C. Behnke, D. Belver, A. Belyaev, J. C. Berger-Chen, A. Blanco, C. Blume, M. Böhmer, P. Cabanelas, S. Chernenko, C. Dritsa, A. Dybczak, E. Epple, L. Fabbietti, O. Fateev, P. Fonte, J. Friese, I. Fröhlich, T. GalatyukJ. A. Garzón, K. Gill, M. Golubeva, D. González-Díaz, F. Guber, M. Gumberidze, S. Harabasz, T. Hennino, R. Holzmann, P. Huck, C. Höhne, A. Ierusalimov, A. Ivashkin, M. Jurkovic, B. Kämpfer, T. Karavicheva, I. Koenig, W. Koenig, B. W. Kolb, G. Korcyl, G. Kornakov, R. Rotte, A. Krása, E. Krebs, F. Krizek, A. Kozuch, H. Kuc, A. Kugler, A. Kurepin, A. Kurilkin, P. Kurilkin, V. Ladygin, R. Lalik, S. Lang, K. Lapidus, A. Lebedev, L. Lopes, M. Lorenz, T. Liu, L. Maier, A. Mangiarotti, J. Markert, V. Metag, J. Michel, C. Müntz, R. Münzet, L. Naumann, M. Palka, Y. Parpottas, T. Perez-Cavalcanti, V. Pechenov, O. Pechenova, J. Pietraszko, W. Przygoda, B. Ramstein, L. Rehnisch, A. Reshetin, A. Rustamov, A. Sadovsky, P. Salabura, T. Scheib, H. Schuldes, J. Siebenson, Yu G. Sobolev, S. Spataro, B. Spruck, H. Ströbele, J. Stroth, P. Strzempek, C. Sturm, O. Svoboda, A. Tarantola, K. Teilab, P. Tlusty, M. Traxler, H. Tsertos, T. Vasiliev, V. Wagner, M. Weber, C. Wendisch, M. Wisniowski, J. Wüstenfeld, S. Yurevich, Y. Zanevsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present exclusive meaurements of the pp→pnπ+ and pp→ppπO reactions at 1.25 GeV, 2.2 GeV and 3.5 GeV and of the pp→ppπ+π- reaction at 1.25 GeV with the High Acceptance Di-Electron Spectrometer at GSI. Total and differential cross-sections for the one-pion production channels are analyzed with the resonance model to extract the differential baryonic resonance contributions. A comparison of the two-pion production channels to effective lagrangian model predictions is on-going. The two-pion invariant mass and opening angle distributions show sensitivity to the double Δ(1232) and N(1440) → Δπ decays.

Original languageEnglish
Title of host publicationProceedings of the 13th International Conference on Nuclear Reaction Mechanisms, NRM 2012
PublisherCERN
Pages541-546
Number of pages6
ISBN (Print)9789290833826
StatePublished - 2013
Externally publishedYes
Event13th International Varenna Conference on Nuclear Reaction Mechanisms, NRM 2012 - Varenna, Italy
Duration: 11 Jun 201215 Jun 2012

Publication series

NameCERN-Proceedings
ISSN (Print)2078-8835

Conference

Conference13th International Varenna Conference on Nuclear Reaction Mechanisms, NRM 2012
Country/TerritoryItaly
CityVarenna
Period11/06/1215/06/12

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