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Test beam demonstration of silicon microstrip modules with transverse momentum discrimination for the future CMS tracking detector

Adam, W.; Bergauer, T.; Brondolin, E.; Dragicevic, M.; Friedl, M.; Frühwirth, R.; Hoch, M.; Hrubec, J.; König, A.; Steininger, H.; Treberspurg, W.; Waltenberger, W.; Alderweireldt, S.; Beaumont, W.; Janssen, X.; Lauwers, J.; Mechelen, P. Van; Remortel, N. Van; Spilbeeck, A. Van; Beghin, D.; ... mehr

A new CMS Tracker is under development for operation at the High Luminosity LHC from 2026 onwards. It includes an outer tracker based on dedicated modules that will reconstruct short track segments, called stubs, using spatially coincident clusters in two closely spaced silicon sensor layers. These modules allow the rejection of low transverse momentum track hits and reduce the data volume before transmission to the first level trigger. The inclusion of tracking information in the trigger decision is essential to limit the first level trigger accept rate. A customized front-end readout chip, the CMS Binary Chip (CBC), containing stub finding logic has been designed for this purpose. A prototype module, equipped with the CBC chip, has been constructed and operated for the first time in a 4 GeV/c positron beam at DESY. The behaviour of the stub finding was studied for different angles of beam incidence on a module, which allows an estimate of the sensitivity to transverse momentum within the future CMS detector. A sharp transverse momentum threshold around 2 GeV/c was demonstrated, which meets the requirement to reject a large fractio ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000095328
Veröffentlicht am 31.05.2019
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1748-0221
KITopen-ID: 1000095328
HGF-Programm 54.02.03 (POF III, LK 01)
Erschienen in Journal of Instrumentation
Band 13
Heft 03
Seiten Article: P03003
Vorab online veröffentlicht am 06.03.2018
Nachgewiesen in Web of Science
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