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 16\,588 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-...

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Detalles Bibliográficos
Autores principales: Blobel, Volker, Kleinwort, Claus, Meier, Frank
Lenguaje:eng
Publicado: 2010
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1285556
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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 16\,588 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-1285556
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12855562019-09-30T06:29:59Zhttp://cds.cern.ch/record/1285556engBlobel, 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 16\,588 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.CMS-CR-2010-089oai:cds.cern.ch:12855562010-06-19
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 http://cds.cern.ch/record/1285556
work_keys_str_mv AT blobelvolker fastalignmentofacomplextrackingdetectorusingadvancedtrackmodels
AT kleinwortclaus fastalignmentofacomplextrackingdetectorusingadvancedtrackmodels
AT meierfrank fastalignmentofacomplextrackingdetectorusingadvancedtrackmodels

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