CERN Accelerating science

Article
Title	Study of the pp-> np+ reaction at 1.25 GeV with HADES
Author(s)	Liu, T (INFN, LNS) ; Liu, T (Orsay, IPN) ; Agakishiev, G (Giessen U.) ; Agodi, C (INFN, LNS) ; Balanda, A (Jagiellonian U.) ; Bellia, G (INFN, LNS) ; Belver, D (Santiago de Compostela U.) ; Belyaev, A (Dubna, JINR) ; Blanco, A (LIP, Coimbra) ; Böhmer, M (Munich, Tech. U.) ; Boyard, J L (Orsay, IPN) ; Braun-Munzinger, P (Darmstadt, EMMI) ; Cabanelas, P (Santiago de Compostela U.) ; Castro, E (Santiago de Compostela U.) ; Christ, T (Munich, Tech. U.) ; Destefanis, M (Giessen U.) ; Díaz, J (Valencia U.) ; Dohrmann, F (Forschungszentrum Dresden Rossendorf) ; Dybczak, A (Jagiellonian U.) ; Fabbietti, L (Munich, Tech. U.) ; Fateev, O (Dubna, JINR) ; Finocchiaro, P (INFN, LNS) ; Fonte, P (LIP, Coimbra) ; Friese, J (Munich, Tech. U.) ; Fröhlich, I (Frankfurt U.) ; Galatyuk, T (Darmstadt, EMMI) ; Garzón, J A (Santiago de Compostela U.) ; Gernhäuser, R (Munich, Tech. U.) ; Gil, A (Valencia U.) ; Gilardi, C (Giessen U.) ; Golubeva, M (Moscow, INR) ; González-Díaz, D (Darmstadt, EMMI) ; Grosse, E (Forschungszentrum Dresden Rossendorf) ; Guber, F (Moscow, INR) ; Heilmann, M (Frankfurt U.) ; Hennino, T (Orsay, IPN) ; Holzmann, R (Darmstadt, EMMI) ; Ierusalimov, A (Dubna, JINR) ; Iori, I (INFN, Milan) ; Ivashkin, A (Moscow, INR) ; Jurkovic, M (Munich, Tech. U.) ; Kämpfer, B (Forschungszentrum Dresden Rossendorf) ; Kanaki, K (Forschungszentrum Dresden Rossendorf) ; Karavicheva, T (Moscow, INR) ; Kirschner, D (Giessen U.) ; Koenig, I (Darmstadt, EMMI) ; Koenig, W (Darmstadt, EMMI) ; Kolb, B W (Darmstadt, EMMI) ; Kotte, R (Forschungszentrum Dresden Rossendorf) ; Kozuch, A (Jagiellonian U.) ; Krása, A (Rez, Nucl. Phys. Inst.) ; Krížek, F (Rez, Nucl. Phys. Inst.) ; Krücken, R (Munich, Tech. U.) ; Kühn, W (Giessen U.) ; Kugler, A (Rez, Nucl. Phys. Inst.) ; Kurepin, A (Moscow, INR) ; Lamas-Valverde, J (Santiago de Compostela U.) ; Lang, S (Darmstadt, EMMI) ; Lange, J S (Giessen U.) ; Lapidus, K (Moscow, INR) ; Lopes, L (LIP, Coimbra) ; Lorenz, M (Frankfurt U.) ; Maier, L (Munich, Tech. U.) ; Mangiarotti, A (LIP, Coimbra) ; Marín, J (Santiago de Compostela U.) ; Markert, J (Frankfurt U.) ; Metag, V (Giessen U.) ; Michalska, B (Jagiellonian U.) ; Michel, J (Frankfurt U.) ; Mishra, D (Giessen U.) ; Moriničre, E (Orsay, IPN) ; Mousa, J (Cyprus U.) ; Müntz, C (Frankfurt U.) ; Naumann, L (Forschungszentrum Dresden Rossendorf) ; Novotny, R (Giessen U.) ; Otwinowski, J (Jagiellonian U.) ; Pachmayer, Y C (Frankfurt U.) ; Palka, M (Darmstadt, EMMI) ; Parpottas, Y (Cyprus U.) ; Pechenov, V (Giessen U.) ; Pechenova, O (Giessen U.) ; Pérez Cavalcanti, T (Giessen U.) ; Pietraszko, J (Darmstadt, EMMI) ; Przygoda, W (Jagiellonian U.) ; Ramstein, B (Orsay, IPN) ; Reshetin, A (Moscow, INR) ; Rustamov, A (Darmstadt, EMMI) ; Sadovsky, A (Moscow, INR) ; Salabura, P (Jagiellonian U.) ; Schmah, A (Munich, Tech. U.) ; Simon, R (Darmstadt, EMMI) ; Sobolev, Yu G (Rez, Nucl. Phys. Inst.) ; Spataro, S (Giessen U.) ; Spruck, B (Giessen U.) ; Ströbele, H (Frankfurt U.) ; Stroth, J (Frankfurt U. ; Darmstadt, EMMI) ; Sturm, C (Frankfurt U.) ; Sudol, M (Orsay, IPN) ; Tarantola, A (Frankfurt U.) ; Teilab, K (Frankfurt U.) ; Tlustý, P (Rez, Nucl. Phys. Inst.) ; Traxler, M (Darmstadt, EMMI) ; Trebacz, R (Jagiellonian U.) ; Tsertos, H (Cyprus U.) ; Veretenkin, I (Moscow, INR) ; Wagner, V (Rez, Nucl. Phys. Inst.) ; Weber, M (Munich, Tech. U.) ; Wisniowski, M (Jagiellonian U.) ; Wüstenfeld, J (Forschungszentrum Dresden Rossendorf) ; Yurevich, S (Darmstadt, EMMI) ; Zanevsky, Y V (Dubna, JINR) ; Zhou, P (Darmstadt, EMMI) ; Zumbruch, P (Forschungszentrum Dresden Rossendorf)
Publication	2010
In:	12th International Conference on Nuclear Reaction Mechanisms, pp.423-430
Abstract	In pp collisions at 1.25 GeV kinetic energy, the HADES collaboration aimed at investigating the di-electron production related to (1232) Dalitz decay ( + ! pe+e−). In order to constrain the models predicting the cross section and the production mechanisms of resonance, the hadronic channels have been measured and studied in parallel to the leptonic channels. The analyses of pp ! np + and pp ! pp 0 channels and the comparison to simulations are presented in this contribution, in particular the angular distributions being sensitive to 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- exchange model and previous data.