Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam

Track-based alignment of chambers in the Atlas muon spectrometer is an essential part of the alignment procedure, during commissioning (cosmics and in beam), and during physics runs. Good overall performance of the spectrometer requires a strong effort dedicated to this task. We present here a compl...

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Detalles Bibliográficos
Autores principales: Giraud, P F, Bauer, F, Chevalier, L, Ernwein, J, Formica, A, Guyot, C, Hassani, S, Lançon, E, Laporte, J F, Nicolaidou, R, Ouraou, A, Schune, P
Lenguaje:eng
Publicado: 2005
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/895798
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author Giraud, P F
Bauer, F
Chevalier, L
Ernwein, J
Formica, A
Guyot, C
Hassani, S
Lançon, E
Laporte, J F
Nicolaidou, R
Ouraou, A
Schune, P
author_facet Giraud, P F
Bauer, F
Chevalier, L
Ernwein, J
Formica, A
Guyot, C
Hassani, S
Lançon, E
Laporte, J F
Nicolaidou, R
Ouraou, A
Schune, P
author_sort Giraud, P F
collection CERN
description Track-based alignment of chambers in the Atlas muon spectrometer is an essential part of the alignment procedure, during commissioning (cosmics and in beam), and during physics runs. Good overall performance of the spectrometer requires a strong effort dedicated to this task. We present here a complete analysis aimed at performing track-based alignment using the H8 test beam data. Alignment-dedicated tracking tools, as well as track-based alignment algorithms, are described. Results including an estimate of the systematic uncertainty are given for several H8 runs. The systematic error is currently dominated by the lack of sensitivity to some degrees of freedom, due to special conditions of the H8 beam. Better performance is however expected during Atlas commissioning.
id cern-895798
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2005
record_format invenio
spelling cern-8957982019-09-30T06:29:59Zhttp://cds.cern.ch/record/895798engGiraud, P FBauer, FChevalier, LErnwein, JFormica, AGuyot, CHassani, SLançon, ELaporte, J FNicolaidou, ROuraou, ASchune, PTrack-based absolute alignment in the Atlas muon spectrometer and in the H8 test beamDetectors and Experimental TechniquesTrack-based alignment of chambers in the Atlas muon spectrometer is an essential part of the alignment procedure, during commissioning (cosmics and in beam), and during physics runs. Good overall performance of the spectrometer requires a strong effort dedicated to this task. We present here a complete analysis aimed at performing track-based alignment using the H8 test beam data. Alignment-dedicated tracking tools, as well as track-based alignment algorithms, are described. Results including an estimate of the systematic uncertainty are given for several H8 runs. The systematic error is currently dominated by the lack of sensitivity to some degrees of freedom, due to special conditions of the H8 beam. Better performance is however expected during Atlas commissioning.ATL-MUON-PUB-2006-012ATL-COM-MUON-2005-019oai:cds.cern.ch:8957982005-10-13
spellingShingle Detectors and Experimental Techniques
Giraud, P F
Bauer, F
Chevalier, L
Ernwein, J
Formica, A
Guyot, C
Hassani, S
Lançon, E
Laporte, J F
Nicolaidou, R
Ouraou, A
Schune, P
Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam
title Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam
title_full Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam
title_fullStr Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam
title_full_unstemmed Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam
title_short Track-based absolute alignment in the Atlas muon spectrometer and in the H8 test beam
title_sort track-based absolute alignment in the atlas muon spectrometer and in the h8 test beam
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/895798
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