Fast alignment of a complex tracking detector using advanced track models

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The inner silicon detector of the Compact Muon Solenoid experiment (CMS) at CERN's LHC consists of 16588 modules. Charged-particle tracks in the detector are used to improve the accuracy to which the position and orientation of the modules is known. This contribution focuses on the Millepede-II...

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Detalles Bibliográficos
Autores principales: Blobel, Volker, Kleinwort, Claus, Meier, Frank
Lenguaje:eng
Publicado: 2011
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.cpc.2011.03.017
http://cds.cern.ch/record/1337529
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author Blobel, Volker
Kleinwort, Claus
Meier, Frank
author_facet Blobel, Volker
Kleinwort, Claus
Meier, Frank
author_sort Blobel, Volker
collection CERN
description The inner silicon detector of the Compact Muon Solenoid experiment (CMS) at CERN's LHC consists of 16588 modules. Charged-particle tracks in the detector are used to improve the accuracy to which the position and orientation of the modules is known. This contribution focuses on the Millepede-II algorithm, one of the two alignment algorithms used by CMS. Recently an advanced track model has been introduced into the CMS alignment procedure, which is based on the "Broken Lines" model and is able to take multiple Coulomb scattering in the detector material properly into account. We show the unique approach needed for solving the alignment problem in a reasonable amount of time. Emphasis is given to the mathematical treatment of the problem.
id cern-1337529
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13375292021-05-03T20:09:33Zdoi:10.1016/j.cpc.2011.03.017http://cds.cern.ch/record/1337529engBlobel, VolkerKleinwort, ClausMeier, FrankFast alignment of a complex tracking detector using advanced track modelsDetectors and Experimental TechniquesThe inner silicon detector of the Compact Muon Solenoid experiment (CMS) at CERN's LHC consists of 16588 modules. Charged-particle tracks in the detector are used to improve the accuracy to which the position and orientation of the modules is known. This contribution focuses on the Millepede-II algorithm, one of the two alignment algorithms used by CMS. Recently an advanced track model has been introduced into the CMS alignment procedure, which is based on the "Broken Lines" model and is able to take multiple Coulomb scattering in the detector material properly into account. We show the unique approach needed for solving the alignment problem in a reasonable amount of time. Emphasis is given to the mathematical treatment of the problem.The inner silicon detector of the Compact Muon Solenoid experiment (CMS) at CERN's LHC consists of 16588 modules. Charged-particle tracks in the detector are used to improve the accuracy to which the position and orientation of the modules is known. This contribution focuses on the Millepede-II algorithm, one of the two alignment algorithms used by CMS. Recently an advanced track model has been introduced into the CMS alignment procedure, which is based on the "Broken Lines" model and is able to take multiple Coulomb scattering in the detector material properly into account. We show the unique approach needed for solving the alignment problem in a reasonable amount of time. Emphasis is given to the mathematical treatment of the problem.The inner silicon detector of the Compact Muon Solenoid experiment (CMS) at CERNʼs LHC consists of 16 588 modules. Charged-particle tracks in the detector are used to improve the accuracy to which the position and orientation of the modules are known. This contribution focuses on the Millepede-II algorithm, one of the two alignment algorithms used by CMS. Recently an advanced track model has been introduced into the CMS alignment procedure, which is based on the “Broken Lines” model and is able to take multiple Coulomb scattering in the detector material properly into account. We show the unique approach needed for solving the alignment problem in a reasonable amount of time. Emphasis is given to the mathematical treatment of the problem.arXiv:1103.3909oai:cds.cern.ch:13375292011-03-22
spellingShingle Detectors and Experimental Techniques
Blobel, Volker
Kleinwort, Claus
Meier, Frank
Fast alignment of a complex tracking detector using advanced track models
title Fast alignment of a complex tracking detector using advanced track models
title_full Fast alignment of a complex tracking detector using advanced track models
title_fullStr Fast alignment of a complex tracking detector using advanced track models
title_full_unstemmed Fast alignment of a complex tracking detector using advanced track models
title_short Fast alignment of a complex tracking detector using advanced track models
title_sort fast alignment of a complex tracking detector using advanced track models
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.cpc.2011.03.017
http://cds.cern.ch/record/1337529
work_keys_str_mv AT blobelvolker fastalignmentofacomplextrackingdetectorusingadvancedtrackmodels
AT kleinwortclaus fastalignmentofacomplextrackingdetectorusingadvancedtrackmodels
AT meierfrank fastalignmentofacomplextrackingdetectorusingadvancedtrackmodels

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