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Si Lambda vio: A trigger for Lambda-hyperons
- Authors
- Muenzer, Robert; Berger, Martin; Fabbietti, Laura; Averbeck, R.; Andronic, A.; Barret, V.; Basrak, Z.; Bastid, N.; Benabderrahmane, M. L.; Buehler, P.; Cargnelli, M.; Caplar, R.; Carevic, I.; Charviakova, V.; Crochet, P.; Deppner, I.; Dupieux, P.; Dzelalija, M.; Fodor, Z.; Gasik, P.; Gasparic, I.; Grishkin, Y.; Hartmann, O. N.; Herrmann, N.; Hildenbrand, K. D.; Hong, B.; Kang, T. I.; Kecskemeti, J.; Kim, Y. J.; Kirejczyk, M.; Kis, 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.; Schuettauf, A.; Seres, Z.; Sikora, B.; Sim, K. S.; Simion, V.; Siwek-Wilczynska, K.; Smolyankin, V.; Suzuki, K.; Tyminski, Z.; Wagner, P.; Widmann, E.; Wisniewski, K.; Xiao, Z. G.; Yamazaki, T.; Yushmanov, I.; Zhang, X. Y.; Zhilin, A.; Zinyuk, V.; Zmeskal, J.
- Issue Date
- 1-5월-2014
- Publisher
- ELSEVIER
- Keywords
- Silicon; Mesytec; APV25; MIPS; Lambda; Trigger
- Citation
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.745, pp.38 - 49
- Indexed
- SCIE
SCOPUS
- Volume
- 745
- Start Page
- 38
- End Page
- 49
- ISSN
- 0168-9002
- Abstract
- As online trigger for events containing Lambda hyperons in p + p collisions at 3.1 GeV a silicon-based device has been designed and built. This system has been integrated close to the target region within the FM 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 Lambda-hyperon candidate. (C) 2014 Elsevier B.V. All rights reserved.
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