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SiΛvio: a trigger for Λ-hyperons

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 reconstru...

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Main Authors: Münzer, Robert Helmut (Author) , Berger, Martin (Author) , Fabbietti, Laura (Author) , Averbeck, R. (Author) , Andronic, A. (Author) , Barret, V. (Author) , Basrak, Z. (Author) , Bastid, N. (Author) , Benabderrahmane, Mohamed Lotfi (Author) , Buehler, P. (Author) , Cargnelli, M. (Author) , Čaplar, R. (Author) , Carevic, I. (Author) , Charviakova, V. (Author) , Crochet, P. (Author) , Deppner, Ingo Martin (Author) , Dupieux, P. (Author) , Dželalija, M. (Author) , Fodor, Z. (Author) , Gasik, P. (Author) , Gašparić, I. (Author) , Grishkin, Y. (Author) , Hartmann, O. N. (Author) , Herrmann, Norbert (Author) , Hildenbrand, K. D. (Author) , Hong, B. (Author) , Kang, T. I. (Author) , Kecskemeti, J. (Author) , Kim, Y. J. (Author) , Kirejczyk, M. (Author) , Kiš, M. (Author) , Kienle, P. (Author) , Koczon, P. (Author) , Kotte, R. (Author) , Lebedev, A. (Author) , Leifels, Y. (Author) , Liu, Jian-Li (Author) , Reischl, Alexander Antonius (Author) , Wisniewski, Krzysztof (Author) , Zinyuk, Victoria (Author)
Format: Article (Journal)
Language:English
Published: 2 February 2014
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2014, Volume: 745, Pages: 38-49
ISSN:1872-9576
DOI:10.1016/j.nima.2014.01.050
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2014.01.050
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0168900214001016
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Author Notes:Robert Münzer, Martin Berger, Laura Fabbietti, R. Averbeck, A. Andronic, V. Barret, Z. Basrak, N. Bastid, M.L. Benabderrahmane, P. Buehler, M. Cargnelli, R. Čaplar, I. Carevic, V. Charviakova, P. Crochet, I. Deppner, P. Dupieux, M. Dželalija, Z. Fodor, P. Gasik, I. Gašparić, Y. Grishkin, O.N. Hartmann, N. Herrmann, K.D. Hildenbrand, B. Hong, T. I. Kang, J. Kecskemeti, Y. J. Kim, M. Kirejczyk, M. Kiš, P. Kienle, P. Koczon, R. Kotte, A. Lebedev, Y. Leifels, J. L. Liu, X. Lopez, V. Manko, J. Marton, T. Matulewicz, M. Petrovici, K. Piasecki, F. Rami, A. Reischl, W. Reisdorf, M.S. Ryu, P. Schmidt, A. Schüttauf, Z. Seres, B. Sikora, K.S. Sim, V. Simion, K. Siwek-Wilczyńska, V. Smolyankin, K. Suzuki, Z. Tyminski, P. Wagner, E. Widmann, K. Wiśniewski, Z.G. Xiao, T. Yamazaki, I. Yushmanov, X.Y. Zhang, A. Zhilin, V. Zinyuk, J. Zmeskal
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Summary: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.
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Physical Description:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2014.01.050

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