TY  - JOUR
A1  - Przygoda, Witold
A1  - Adamczewski-Musch, Jörn
A1  - Arnold, Oliver Werner
A1  - Atomssa, Ermias T.
A1  - Behnke, Claudia
A1  - Berger-Chen, Jia-Chii
A1  - Biernat, Jacek
A1  - Blanco, Alberto
A1  - Blume, Christoph
A1  - Böhmer, Michael
A1  - Bordalo, Paula
A1  - Chernenko, Sergey P.
A1  - Deveaux, Christina Anna
A1  - Dybczak, Adrian
A1  - Epple, Eliane
A1  - Fabbietti, Laura
A1  - Fateev, Oleg
A1  - Fonte, Paulo
A1  - Franco, Celso
A1  - Friese, Jürgen
A1  - Fröhlich, Ingo
A1  - Galatyuk, Tetyana
A1  - Garzón, Juan A.
A1  - Gill, Katharina
A1  - Golubeva, Marina
A1  - Guber, Fedor
A1  - Gumberidze, Malgorzata
A1  - Harabasz, Szymon
A1  - Hennino, Thierry
A1  - Hlaváč, Stanislav
A1  - Höhne, Claudia
A1  - Holzmann, Romain
A1  - Ierusalimov, Alexander P.
A1  - Ivashkin, Alexander
A1  - Jurkovič, Martin
A1  - Kämpfer, Burkhard
A1  - Karavicheva, Tatiana L.
A1  - Kardan, Behruz
A1  - Koenig, Ilse
A1  - Koenig, Wolfgang
A1  - Kolb, Burkhard W.
A1  - Korcyl, Grzegorz
A1  - Kornakov, Georgy
A1  - Kotte, Roland
A1  - Krása, Antonin
A1  - Krebs, Erik
A1  - Kuc, Hubert
A1  - Kugler, Andrej
A1  - Kunz, Tobias
A1  - Kurepin, Alexander
A1  - Kurilkin, Aleksey K.
A1  - Kurilkin, Pavel
A1  - Ladygin, Vladimir P.
A1  - Lalik, Rafał Tomasz
A1  - Lapidus, Kirill
A1  - Lebedev, Alexei
A1  - Lopes, Luis Alberto Vieira
A1  - Lorenz, Manuel
A1  - Mahmoud, Tariq
A1  - Maier, Ludwig W.
A1  - Mangiarotti, Alessio
A1  - Markert, Jochen
A1  - Metag, Volker
A1  - Michel, Jan
A1  - Müntz, Christian
A1  - Münzer, Robert Helmut
A1  - Naumann, Lothar
A1  - Palka, Marek
A1  - Parpottas, Yannis
A1  - Pechenov, Vladimir
A1  - Pechenova, Olga
A1  - Petousis, Vlasios
A1  - Pietraszko, Jerzy
A1  - Ramstein, Béatrice
A1  - Rehnisch, Laura
A1  - Reshetin, Andrey
A1  - Rost, Adrian
A1  - Rustamov, Anar
A1  - Sadovsky, Alexander
A1  - Salabura, Piotr
A1  - Scheib, Timo
A1  - Schmidt-Sommerfeld, Korbinian
A1  - Schuldes, Heidi
A1  - Sellheim, Patrick
A1  - Siebenson, Johannes Stephan
A1  - Silva, Luis
A1  - Sobolev, Yuri G.
A1  - Spataro, Stefano
A1  - Ströbele, Herbert
A1  - Stroth, Joachim
A1  - Strzempek, Paweł
A1  - Sturm, Christian Thomas
A1  - Svoboda, Ondřej
A1  - Tarantola Peloni, Attilio
A1  - Teilab, Khaled
A1  - Tlustý, Pavel
A1  - Traxler, Michael
A1  - Tsertos, Haralabos
A1  - Vasiliev, Taras A.
A1  - Wagner, Vladimir
A1  - Wendisch, Christian
A1  - Wirth, Joana
A1  - Wüstenfeld, Jörn
A1  - Zanevsky, Yuri V.
A1  - Zumbruch, Peter W.
T1  - Investigating hadronic resonances in pp interactions with HADES
T2  - EPJ Web of Conferences
N2  - n this paper we report on the investigation of baryonic resonance production in proton-proton collisions at the kinetic energies of 1.25 GeV and 3.5 GeV, based on data measured with HADES. Exclusive channels npπ+ and ppπ0 as well as ppe+e− were studied simultaneously in the framework of a one-boson exchange model. The resonance cross sections were determined from the one-pion channels for Δ(1232) and N(1440) (1.25 GeV) as well as further Δ and N* resonances up to 2 GeV/c2 for the 3.5 GeV data. The data at 1.25 GeV energy were also analysed within the framework of the partial wave analysis together with the set of several other measurements at lower energies. The obtained solutions provided the evolution of resonance production with the beam energy, showing a sizeable non-resonant contribution but with still dominating contribution of Δ(1232)P33. In the case of 3.5 GeV data, the study of the ppe+e− channel gave the insight on the Dalitz decays of the baryon resonances and, in particular, on the electromagnetic transition form-factors in the time-like region. We show that the assumption of a constant electromagnetic transition form-factors leads to underestimation of the yield in the dielectron invariant mass spectrum below the vector mesons pole. On the other hand, a comparison with various transport models shows the important role of intermediate ρ production, though with a large model dependency. The exclusive channels analysis done by the HADES collaboration provides new stringent restrictions on the parameterizations used in the models.
Y1  - 2015
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71921
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-719212
SN  - 2100-014X
VL  - 97
IS  - 00024
PB  - EDP Sciences
CY  - Les Ulis
ER  -