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CMS Alignment and Calibration Framework - Setup and First Experiences with Data

Precise and prompt alignment and calibration will be crucial to the performance of the CMS detector. A software and computing infrastructure has been commissioned, which accomplishes both tasks in a swift and reliable manner. First, incoming data from the experiment is processed and skimmed automati...

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Autor principal: Edelhoff, Matthias
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.4771859
http://cds.cern.ch/record/1358824
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author Edelhoff, Matthias
author_facet Edelhoff, Matthias
author_sort Edelhoff, Matthias
collection CERN
description Precise and prompt alignment and calibration will be crucial to the performance of the CMS detector. A software and computing infrastructure has been commissioned, which accomplishes both tasks in a swift and reliable manner. First, incoming data from the experiment is processed and skimmed automatically at the Tier-0 site. Reduction of data size is of prime interest in this stage, to ensure efficient use of computing facilities and fast turnaround-times. Second, a versatile computing farm (CERN Analysis Farm) enables a fast execution of the alignment and calibration workflows. Both steps are coordinated and carried out for a large number of interdependent processes. The resulting database payloads are used for all subsequent reconstruction steps, providing optimised measurement precision to physics analysis. The framework is described alongside to the validation of its implementation. To this end some results using cosmic data taken in 2008 are shown.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling cern-13588242019-09-30T06:29:59Zdoi:10.1063/1.4771859http://cds.cern.ch/record/1358824engEdelhoff, MatthiasCMS Alignment and Calibration Framework - Setup and First Experiences with DataDetectors and Experimental TechniquesPrecise and prompt alignment and calibration will be crucial to the performance of the CMS detector. A software and computing infrastructure has been commissioned, which accomplishes both tasks in a swift and reliable manner. First, incoming data from the experiment is processed and skimmed automatically at the Tier-0 site. Reduction of data size is of prime interest in this stage, to ensure efficient use of computing facilities and fast turnaround-times. Second, a versatile computing farm (CERN Analysis Farm) enables a fast execution of the alignment and calibration workflows. Both steps are coordinated and carried out for a large number of interdependent processes. The resulting database payloads are used for all subsequent reconstruction steps, providing optimised measurement precision to physics analysis. The framework is described alongside to the validation of its implementation. To this end some results using cosmic data taken in 2008 are shown.CMS-CR-2009-322oai:cds.cern.ch:13588242009-10-18
spellingShingle Detectors and Experimental Techniques
Edelhoff, Matthias
CMS Alignment and Calibration Framework - Setup and First Experiences with Data
title CMS Alignment and Calibration Framework - Setup and First Experiences with Data
title_full CMS Alignment and Calibration Framework - Setup and First Experiences with Data
title_fullStr CMS Alignment and Calibration Framework - Setup and First Experiences with Data
title_full_unstemmed CMS Alignment and Calibration Framework - Setup and First Experiences with Data
title_short CMS Alignment and Calibration Framework - Setup and First Experiences with Data
title_sort cms alignment and calibration framework - setup and first experiences with data
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1063/1.4771859
http://cds.cern.ch/record/1358824
work_keys_str_mv AT edelhoffmatthias cmsalignmentandcalibrationframeworksetupandfirstexperienceswithdata