The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC

The Electromagnetic Calorimeter (ECAL) of the Compact Muon Solenoid (CMS) experiment will be upgraded for the High-Luminosity phase of the LHC (HL-LHC) to cope with the new, harsher conditions, in terms of luminosity and pileup. The current lead tungstate crystals avalanche photodiode detectors in t...

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Autor principal: Marinelli, Nancy
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:http://cds.cern.ch/record/2797751
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author Marinelli, Nancy
author_facet Marinelli, Nancy
author_sort Marinelli, Nancy
collection CERN
description The Electromagnetic Calorimeter (ECAL) of the Compact Muon Solenoid (CMS) experiment will be upgraded for the High-Luminosity phase of the LHC (HL-LHC) to cope with the new, harsher conditions, in terms of luminosity and pileup. The current lead tungstate crystals avalanche photodiode detectors in the barrel region of the ECAL will remain, while the front-end and off-detector read-out electronics of the calorimeter will be upgraded. The new electronics will have to fulfill the requirements of the upgraded Level 1 hardware trigger system, in terms of increased latency and data bandwidth, in order to preserve detector performance despite the increased instantaneous luminosity. The upgrade will provide single crystal granularity for the hardware trigger and will enable a full read out of the detector. A crucial characteristic of the new design will be the ability to measure the time of electrons and photons with high precision, of the order of 30 ps for energies above 100 GeV. This excellent time resolution will improve the overall CMS physics performance under the expected pile-up conditions. The status of the ongoing R&D activities is presented, together with the latest beam test results with prototypes.
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spelling cern-27977512021-12-13T20:15:46Zhttp://cds.cern.ch/record/2797751engMarinelli, NancyThe CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHCDetectors and Experimental TechniquesThe Electromagnetic Calorimeter (ECAL) of the Compact Muon Solenoid (CMS) experiment will be upgraded for the High-Luminosity phase of the LHC (HL-LHC) to cope with the new, harsher conditions, in terms of luminosity and pileup. The current lead tungstate crystals avalanche photodiode detectors in the barrel region of the ECAL will remain, while the front-end and off-detector read-out electronics of the calorimeter will be upgraded. The new electronics will have to fulfill the requirements of the upgraded Level 1 hardware trigger system, in terms of increased latency and data bandwidth, in order to preserve detector performance despite the increased instantaneous luminosity. The upgrade will provide single crystal granularity for the hardware trigger and will enable a full read out of the detector. A crucial characteristic of the new design will be the ability to measure the time of electrons and photons with high precision, of the order of 30 ps for energies above 100 GeV. This excellent time resolution will improve the overall CMS physics performance under the expected pile-up conditions. The status of the ongoing R&D activities is presented, together with the latest beam test results with prototypes.CMS-CR-2019-116oai:cds.cern.ch:27977512019-08-16
spellingShingle Detectors and Experimental Techniques
Marinelli, Nancy
The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC
title The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC
title_full The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC
title_fullStr The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC
title_full_unstemmed The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC
title_short The CMS ECAL Barrel Upgrade for High Precision Timing and Energy Measurements in HL-LHC
title_sort cms ecal barrel upgrade for high precision timing and energy measurements in hl-lhc
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/2797751
work_keys_str_mv AT marinellinancy thecmsecalbarrelupgradeforhighprecisiontimingandenergymeasurementsinhllhc
AT marinellinancy cmsecalbarrelupgradeforhighprecisiontimingandenergymeasurementsinhllhc