An upper limit on hypertriton production in collisions of Ar(1.76 A GeV) + KCl

G. Agakishiev, D. Belver, A. Blanco, M. Böhmer, J. L. Boyard, P. Cabanelas, E. Castro, S. Chernenko, M. Destefanis, F. Dohrmann, A. Dybczak, E. Epple, L. Fabbietti, O. Fateev, P. Finocchiaro, P. Fonte, J. Friese, I. Fröhlich, T. Galatyuk, J. A. GarzónR. Gernhäuser, C. Gilardi, M. Golubeva, D. González-Díaz, F. Guber, M. Gumberidze, T. Heinz, T. Hennino, R. Holzmann, I. Iori, A. Ivashkin, M. Jurkovic, B. Kämpfer, T. Karavicheva, I. Koenig, W. Koenig, B. W. Kolb, R. Kotte, A. Krása, F. Krizek, R. Krücken, H. Kuc, W. Kühn, A. Kugler, A. Kurepin, S. Lang, J. S. Lange, K. Lapidus, T. Liu, L. Lopes, M. Lorenz, L. Maier, A. Mangiarotti, J. Markert, V. Metag, B. Michalska, J. Michel, E. Morinière, J. Mousa, C. Müntz, L. Naumann, Y. C. Pachmayer, M. Palka, V. Pechenov, O. Pechenova, J. Pietraszko, W. Przygoda, B. Ramstein, L. Rehnisch, A. Reshetin, A. Rustamov, A. Sadovsky, P. Salabura, T. Scheib, A. Schmah, H. Schuldes, E. Schwab, J. Siebenson, Yu G. Sobolev, S. Spataro, B. Spruck, H. Ströbele, J. Stroth, C. Sturm, A. Tarantola, K. Teilab, P. Tlusty, M. Traxler, R. Trebacz, H. Tsertos, V. Wagner, M. Weber, C. Wendisch, M. Wisniowski, J. Wüstenfeld, S. Yurevich, Y. Zanevsky

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Abstract

A high-statistic data sample of Ar(1.76 AGeV)+KCl events recorded with HADES is used to search for a hypertriton signal. An upper production limit per centrality-triggered event of 1.04×10-3 on the 3σ level is derived. Comparing this value with the number of successfully reconstructed Λ hyperons allows to determine an upper limit on the ratio N3ΛH/NΛ which is confronted with statistical and coalescence-type model calculations.

Original languageEnglish
Article number146
Pages (from-to)1-5
Number of pages5
JournalEuropean Physical Journal A
Volume49
Issue number11
DOIs
StatePublished - 2013
Externally publishedYes

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