Associate K0 production in p+p collisions at 3.5 GeV: The role of Δ(1232)++
Date
2014Author
Krücken, R.Agakishiev, G.
Arnold, O.
Belver, D.
Belyaev, A.
Berger-Chen, J. C.
Blanco, A.
Böhmer, M.
Boyard, J. L.
Cabanelas, Pablo
Chernenko, S.
Dybczak, A.
Epple, E.
Fabbietti, L.
Fateev, O.
Finocchiaro, P.
Fonte, P.
Friese, J.
Fröhlich, I.
Galatyuk, T.
Garzón, J. A.
Gernhäuser, R.
Göbel, K.
Golubeva, M.
González-Díaz, D.
Guber, F.
Gumberidze, M.
Heinz, T.
Hennino, T.
Holzmann, R.
Ierusalimov, A.
Iori, I.
Ivashkin, A.
Jurkovic, M.
Kämpfer, B.
Karavicheva, T.
Koenig, I.
Koenig, W.
Kolb, B. W.
Korcyl, G.
Kornakov, G.
Kotte, R.
Krása, Antonín
Krizek, F.
Kuc, H.
Kühn, W.
Kugler, A.
Kunz, T.
Kurepin, A.
Ladygin, V.
Lalik, R.
Lapidus, K.
Lebedev, A.
Lopes, L.
Lorenz, M.
Maier, L.
Mangiarotti, A.
Markert, J.
Metag, V.
Michel, J.
Müntz, C.
Münzer, R.
Naumann, L.
Pachmayer, Y. C.
Palka, M.
Parpottas, Yiannis
Pechenov, V.
Pechenova, O.
Pietraszko, J.
Przygoda, W.
Ramstein, B.
Reshetin, A.
Rustamov, A.
Sadovsky, A.
Salabura, P.
Schmah, A.
Schwab, E.
Siebenson, J.
Sobolev, Y. G.
Spruck, B.
Ströbele, H.
Stroth, J.
Sturm, C.
Tarantola, A.
Teilab, K.
Tlusty, P.
Traxler, M.
Tsertos, Haralambos
Vasiliev, T.
Wagner, V.
Weber, M.
Wendisch, C.
Wüstenfeld, J.
Yurevich, S.
Zanevsky, Y.
Source
Physical Review C - Nuclear PhysicsVolume
90Issue
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Show full item recordAbstract
An exclusive analysis of the four-body final states Λ+p+π++K0 and Σ0+p+π++K0 measured with HADES for p+p collisions at a beam kinetic energy of 3.5 GeV is presented. The analysis uses various phase space variables, such as missing mass and invariant mass distributions, in the four-particle event selection (p,π+,π+,π-) to find cross sections of the different production channels, contributions of the intermediate resonances Δ++ and Σ(1385)+, and corresponding angular distributions. A dominant resonant production is seen, where the reaction Λ+Δ+++K0 has a cross section about ten times higher (29.45±0.08-1.46+1.67±2.06μb) than the analogous nonresonant reaction (2.57±0.02-1.98+0.21±0.18μb). A similar result is obtained in the corresponding Σ0 channels with 9.26±0.05-0.31+1.41±0.65μb in the resonant and 1.35±0.02-1.35+0.10±0.09μb in the nonresonant reactions. © 2014 American Physical Society.