Study of the pp → npπ+ reaction at 1.25 GeV with HADES
Date
2010Author
Krücken, R.Liu, T.
Agakishiev, G.
Agodi, C.
Bałanda, A.
Bellia, G.
Belver, D.
Belyaev, A.
Blanco, A.
Böhmer, M.
Boyard, J. L.
Braun-Munzinger, P.
Cabanelas, Pablo
Castro, E.
Christ, T.
Destefanis, M.
Diáz, J.
Dohrmann, F.
Dybczak, A.
Fabbietti, L.
Fateev, O.
Finocchiaro, P.
Fonte, P.
Friese, J.
Fröhlich, I.
Galatyuk, T.
Garzón, J. A.
Gernhäuser, R.
Gil, A.
Gilardi, C.
Golubeva, M.
González-Díaz, D.
Grosse, E.
Guber, F.
Heilmann, M.
Hennino, T.
Holzmann, R.
Ierusalimov, A.
Iori, I.
Ivashkin, A.
Jurkovic, M.
Kämpfer, B.
Kanaki, K.
Karavicheva, T.
Kirschner, D.
Koenig, I.
Koenig, W.
Kolb, B. W.
Kotte, R.
Kozuch, A.
Krása, Antonín
Křížek, F.
Kühn, W.
Kugler, A.
Kurepin, A.
Lamas-Valverde, J.
Lang, S.
Lange, J. S.
Lapidus, K.
Lopes, L.
Lorenz, M.
Maier, L.
Mangiarotti, A.
Marín, J.
Marker, J.
Metag, V.
Michalska, B.
Michel, J.
Mishra, D.
Morinière, E.
Mousa, J.
Müntz, C.
Naumann, L.
Novotny, R.
Otwinowski, J.
Pachmayer, Y. C.
Palka, M.
Parpottas, Yiannis
Pechenov, V.
Pechenova, O.
Pérez Cavalcanti, T.
Pietraszko, J.
Przygoda, W.
Ramstein, B.
Reshetin, A.
Rustamov, A.
Sadovsky, A.
Salabura, P.
Schma, A.
Simon, R.
Sobolev, Yu G.
Spataro, S.
Spruck, B.
Ströbele, H.
Stroth, J.
Sturm, C.
Sudol, M.
Tarantola, A.
Teilab, K.
Tlustý, P.
Traxler, M.
Trebacz, R.
Tsertos, Haralambos
Veretenkin, I.
Wagner, V.
Weber, M.
Wisniowski, M.
Wüstenfeld, J.
Yurevich, S.
Zanevsky, Y. V.
Zhou, P.
Zumbruch, P.
ISBN
978-92-9083-341-3Publisher
CERNSource
CERN-Proceedings2009 12th International Conference on Nuclear Reaction Mechanisms, NRM 2009
Volume
2Pages
423-429Google Scholar check
Keyword(s):
Metadata
Show full item recordAbstract
In pp collisions at 1.25 GeV kinetic energy, the HADES collaboration aimed at investigating the di-electron production related to Δ (1232) Dalitz decay (Δ+ → pe+e-). In order to constrain the models predicting the cross section and the production mechanisms of A resonance, the hadronic channels have been measured and studied in parallel to the leptonic channels. The analyses of pp → npπ+ and pp → ppπ0 channels and the comparison to simulations are presented in this contribution, in particular the angular distributions being sensitive to Δ production and decay. The accurate acceptance corrections have been performed as well, which could be tested in all the phase space region thanks to the high statistic data. These analyses result in an overall agreement with the one-π exchange model and previous data.