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Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction

For the High Luminosity upgrade of the Large Hadron Collider (HL-LHC), the Com- pact Muon Solenoid Experiment (CMS) is currently studying various upgrade options (CMS Phase II Upgrade). HL-LHC involves raising the rate of collisions (luminosity) by a factor of 10 beyond the LHC’s original design val...

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Autor principal: Flamant, Cedric Wen
Lenguaje:eng
Publicado: 2014
Materias:
Acceso en línea:http://cds.cern.ch/record/1751387
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author Flamant, Cedric Wen
author_facet Flamant, Cedric Wen
author_sort Flamant, Cedric Wen
collection CERN
description For the High Luminosity upgrade of the Large Hadron Collider (HL-LHC), the Com- pact Muon Solenoid Experiment (CMS) is currently studying various upgrade options (CMS Phase II Upgrade). HL-LHC involves raising the rate of collisions (luminosity) by a factor of 10 beyond the LHC’s original design value, posing the challenge of an in- creased rate of collisions per bunch-crossing (pile-up). In high pile-up conditions, it is difficult to assign final state particles to individual collisions, and complicated to separate jets. Studies have been conducted on the use of time of flight measurements in the elec- tromagnetic calorimeter (ECAL) of CMS in regards to time cleaning of pile-up jets and vertexing through triangulation of rechits. This project verifies a few applications of ECAL timing within the recently updated timing portion of the CMSSW framework.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-17513872019-09-30T06:29:59Zhttp://cds.cern.ch/record/1751387engFlamant, Cedric WenPrecision Timing in High Pile-Up and Time-Based Vertex ReconstructionDetectors and Experimental TechniquesParticle Physics - ExperimentFor the High Luminosity upgrade of the Large Hadron Collider (HL-LHC), the Com- pact Muon Solenoid Experiment (CMS) is currently studying various upgrade options (CMS Phase II Upgrade). HL-LHC involves raising the rate of collisions (luminosity) by a factor of 10 beyond the LHC’s original design value, posing the challenge of an in- creased rate of collisions per bunch-crossing (pile-up). In high pile-up conditions, it is difficult to assign final state particles to individual collisions, and complicated to separate jets. Studies have been conducted on the use of time of flight measurements in the elec- tromagnetic calorimeter (ECAL) of CMS in regards to time cleaning of pile-up jets and vertexing through triangulation of rechits. This project verifies a few applications of ECAL timing within the recently updated timing portion of the CMSSW framework.CERN-STUDENTS-Note-2014-073oai:cds.cern.ch:17513872014-08-22
spellingShingle Detectors and Experimental Techniques
Particle Physics - Experiment
Flamant, Cedric Wen
Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction
title Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction
title_full Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction
title_fullStr Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction
title_full_unstemmed Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction
title_short Precision Timing in High Pile-Up and Time-Based Vertex Reconstruction
title_sort precision timing in high pile-up and time-based vertex reconstruction
topic Detectors and Experimental Techniques
Particle Physics - Experiment
url http://cds.cern.ch/record/1751387
work_keys_str_mv AT flamantcedricwen precisiontiminginhighpileupandtimebasedvertexreconstruction