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Determination of the Σ(1385)0/Λ(1405) ratio in p+p collisions at 3.5 GeV

Authors :
Epple, E.
Fabbietti, L.
Agakishiev, G.
Belver, D.
Belyaev, A.
Blanco, A.
Böhmer, M.
Cabanelas, P.
Chernenko, S.
Dybczak, A.
Fateev, O.
Finocchiaro, P.
Fonte, P.
Friese, J.
Fröhlich, I.
Galatyuk, T.
Garzón, J. A.
Golubeva, M.
González-Díaz, D.
Guber, F.
Gumberidze, M.
Hennino, T.
Holzmann, R.
Huck, P.
Ierusalimov, A.
Ivashkin, A.
Jurkovic, M.
Kämpfer, B.
Karavicheva, T.
Koenig, I.
Koenig, W.
Kolb, B. W.
Korcyl, G.
Kornakov, G.
Kotte, R.
Kozuch, A.
Krása, A.
Krizek, F.
Krücken, R.
Kuc, H.
Kühn, W.
Kugler, A.
Kurepin, A.
Kurilkin, A.
Kurilkin, P.
Ladygin, V.
Lang, S.
Lapidus, K.
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.
Siebenson, J.
Sobolev, Y. G.
Spataro, S.
Ströbele, H.
Stroth, J.
Sturm, C.
Tarantola, A.
Teilab, K.
Tlusty, P.
Traxler, M.
Trebacz, R.
Tsertos, H.
Vasiliev, T.
Wagner, V.
Weber, M.
Wüstenfeld, J.
Yurevich, S.
Zanevsky, Y.
Source :
Hyperfine Interactions 210(2012), 45-51
Publication Year :
2012

Abstract

The aim of the present analysis is to determine the relative production cross sections of the Λ(1405) and Σ(1385)0 resonances in p+p collisions at Ekin = 3.5 GeV measured with HADES. Upper and lower limits have been determined for the ratio (Σ(1385)0+p+K+)(Λ(1405)+p+K+)=0.76+0.54−0.26. The knowledge of this ratio is an essential input for the analysis of the decay Λ(1405)→Σ±π∓ , where an unambiguous separation of the Λ(1405) and Σ(1385)0 signals is not possible.

Details

Language :
English
Database :
OpenAIRE
Journal :
Hyperfine Interactions 210(2012), 45-51
Accession number :
edsair.dedup.wf.001..68c122ca03f11c13c4a2be9208af3ed4