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A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade

A new CMS Tracker is under development for operation at the High Luminosity LHC from 2025. It includes an outer tracker based on special modules of two different types which will construct track stubs using spatially coincident clusters in two closely spaced sensor layers, to reject low transverse m...

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Detalles Bibliográficos
Autor principal: Hall, Geoffrey
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2015.09.075
http://cds.cern.ch/record/2027712
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author Hall, Geoffrey
author_facet Hall, Geoffrey
author_sort Hall, Geoffrey
collection CERN
description A new CMS Tracker is under development for operation at the High Luminosity LHC from 2025. It includes an outer tracker based on special modules of two different types which will construct track stubs using spatially coincident clusters in two closely spaced sensor layers, to reject low transverse momentum track hits and reduce the data volume before data transmission to the Level-1 trigger. The tracker data will be used to reconstruct track segments in dedicated processors before onward transmission to other trigger processors which will combine tracker information with data originating from the calorimeter and muon detectors, to make the final L1 trigger decision. The architecture for processing the tracker data outside the detector is under study, using several alternative approaches. One attractive possibility is to exploit a Time Multiplexed design similar to the one which is currently being implemented in the CMS calorimeter trigger as part of the Phase I trigger upgrade. The novel Time Multiplexed Trigger concept is explained, the potential benefits for processing future tracker data are described and a feasible design based on currently existing hardware is outlined.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling cern-20277122022-08-10T12:37:18Zdoi:10.1016/j.nima.2015.09.075http://cds.cern.ch/record/2027712engHall, GeoffreyA Time-Multiplexed Track-Trigger for the CMS HL-LHC upgradeDetectors and Experimental TechniquesA new CMS Tracker is under development for operation at the High Luminosity LHC from 2025. It includes an outer tracker based on special modules of two different types which will construct track stubs using spatially coincident clusters in two closely spaced sensor layers, to reject low transverse momentum track hits and reduce the data volume before data transmission to the Level-1 trigger. The tracker data will be used to reconstruct track segments in dedicated processors before onward transmission to other trigger processors which will combine tracker information with data originating from the calorimeter and muon detectors, to make the final L1 trigger decision. The architecture for processing the tracker data outside the detector is under study, using several alternative approaches. One attractive possibility is to exploit a Time Multiplexed design similar to the one which is currently being implemented in the CMS calorimeter trigger as part of the Phase I trigger upgrade. The novel Time Multiplexed Trigger concept is explained, the potential benefits for processing future tracker data are described and a feasible design based on currently existing hardware is outlined.CMS-CR-2015-109oai:cds.cern.ch:20277122015-06-11
spellingShingle Detectors and Experimental Techniques
Hall, Geoffrey
A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade
title A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade
title_full A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade
title_fullStr A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade
title_full_unstemmed A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade
title_short A Time-Multiplexed Track-Trigger for the CMS HL-LHC upgrade
title_sort time-multiplexed track-trigger for the cms hl-lhc upgrade
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2015.09.075
http://cds.cern.ch/record/2027712
work_keys_str_mv AT hallgeoffrey atimemultiplexedtracktriggerforthecmshllhcupgrade
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