Partial Wave Analysis of the Reaction p(3.5GeV)+p→pK+Λ to Search for the "ppK−" Bound State
- Agakishiev, G.
- Arnold, O.
- Balanda, A.
- Belver, D.
- Belyaev, A.V.
- Berger-Chen, J.C.
- Blanco, A.
- Böhmer, M.
- Boyard, J.L.
- Cabanelas, P.
- Chernenko, S.
- Dybczak, A.
- Epple, E.
- Fabbietti, L.
- Fateev, O.V.
- Finocchiaro, P.
- Fonte, P.
- Friese, J.
- Fröhlich, I.
- Galatyuk, T.
- Garzon, J.A.
- Gernhäuser, R.
- Göbel, K.
- Golubeva, M.
- Gonzalez-Diaz, 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.
- Kornakov, G.
- Kotte, R.
- Krasa, A.
- Krizek, F.
- Krücken, R.
- Kuc, H.
- Kühn, W.
- Kugler, A.
- Kurepin, A.
- Ladygin, V.
- Lalik, R.
- Lang, S.
- Lapidus, K.
- Lebedev, A.
- Liu, T.
- Lopes, L.
- Lorenz, M.
- Maier, L.
- Mangiarotti, A.
- Markert, J.
- Metag, V.
- Michalska, B.
- Michel, J.
- Müntz, C.
- Naumann, L.
- Pachmayer, Y.C.
- Palka, M.
- Parpottas, Y.
- 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, Yu.G.
- Spataro, S.
- Spruck, B.
- Ströbele, H.
- Stroth, J.
- Sturm, C.
- Tarantola, A.
- Teilab, K.
- Tlusty, P.
- Traxler, M.
- Trebacz, R.
- Tsertos, H.
- Wagner, V.
- Weber, M.
- Wendisch, C.
- Wüstenfeld, J.
- Yurevich, S.
- Zanevsky, Y.V.
DOIAbstract
International audienceEmploying the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction p(3.5GeV)+p→pK+Λ. This reaction might contain information about the kaonic cluster "ppK−" via its decay into pΛ. Due to interference effects in our coherent description of the data, a hypothetical K¯¯¯NN (or, specifically "ppK−") cluster signal must not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectra like pΛ. Our PWA analysis includes a variety of resonant and non-resonant intermediate states and delivers a good description of our data (various angular distributions and two-hadron invariant mass spectra) without a contribution of a K¯¯¯NN cluster. At a confidence level of...
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