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

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

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

Journal article published in 2013 by 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 and other authors.

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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.

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

Abstract