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Münzer, Robert; Berger, Martin; Fabbietti, Laura; Averbeck, R.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Benabderrahmane, M.L.; Buehler, P.; Cargnelli, M.; Čaplar, R.; Carevic, I.; Charviakova, V.; Crochet, P.; Deppner, I.; Dupieux, P.; Dželalija, M.; Fodor, Z.; Gasik, P.; Gašparić, I.; Grishkin, Y.; Hartmann, O.N.; Herrmann, N.; Hildenbrand, K.D.; Hong, B.; Kang, T.I.; Kecskemeti, J.; Kim, Y.J.; Kirejczyk, M.; Kiš, M.; Kienle, P.; Koczon, P.; Kotte, R.; Lebedev, A.; Leifels, Y.; Liu, J.L.; Lopez, X.; Manko, V.; Marton, J.; Matulewicz, T.; Petrovici, M.; Piasecki, K.; Rami, F.; Reischl, A.; Reisdorf, W.; Ryu, M.S.; Schmidt, P.; Schüttauf, A.; Seres, Z.; Sikora, B.; Sim, K.S.; Simion, V.; Siwek-Wilczyńska, K.; Smolyankin, V.; Suzuki, K.; Tyminski, Z.; Wagner, P.; Widmann, E.; Wiśniewski, K.; Xiao, Z.G.; Yamazaki, T.; Yushmanov, I.; Zhang, X.Y.; Zhilin, A.; Zinyuk, V.; Zmeskal, J.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 05/2014, Volume: 745Journal Article
As online trigger for events containing Λ hyperons in p+p collisions at 3.1GeV a silicon-based device has been designed and built. This system has been integrated close to the target region within the FOPI spectrometer at GSI and was also employed as a tracking device to improve the vertex reconstruction of secondary decays. The design of the detector components, read-out, the trigger capability as well as the tracking performance are presented. An enrichment factor of about 14 was achieved for events containing a Λ-hyperon candidate.
